iPhone 15 Pro Max Overheating Issues...

# iPhone 15 Pro Overheating Concerns: A Comprehensive Investigation

## Introduction

You’ve likely heard the reports: The new iPhone 15 Pro and Pro Max, released just under a week ago, are facing backlash from some users who claim the devices overheat during use or while charging. Some owners have even reported temperatures as high as 122°F, sparking speculation that the phone’s design might be flawed.

The rumors suggest that the iPhone 15 Pro’s titanium construction could be contributing to the overheating issue. Unlike aluminum or stainless steel, titanium is not as effective at dissipating heat, which could explain why some users are experiencing higher temperatures. However, before jumping to conclusions, let’s dive deeper into this controversy and put these claims to the test.

## The Setup: Why This Investigation Matters

To get to the bottom of the overheating concerns, I decided to conduct a thorough investigation using a thermal imaging camera to capture accurate temperature data. To ensure fair testing, I acquired a brand-new iPhone 14 Pro Max still sealed in its box. This decision might seem a bit extreme, but it’s crucial for obtaining reliable and unbiased results.

The goal of this investigation is to determine whether the overheating issue is caused by software, hardware, or a combination of both. Specifically, I wanted to test under controlled conditions to see if the iPhone 15 Pro truly overheats more than its predecessors when put under stress.

## Test Conditions and Variables

Before starting the tests, it’s important to note the variables that could influence the results:

- **Chargers**: I used a range of chargers, including a 20W brick for slower charging and a 65W fast charger to simulate real-world usage scenarios. For added comparison, I also tested with a 100W charger on an iPhone 14 Pro Max.

- **Devices**: In addition to the iPhone 15 Pro and Pro Max, I included an iPhone 14 Pro Max running iOS 17 and another one still on iOS 16. This helps isolate whether any overheating issues are software-related or hardware-specific.

- **Applications**: To push the devices to their limits, I tested them while recording 4K video at 60 frames per second—a task known to generate significant heat.

## Testing Phase 1: Slower Charging (20W)

The first phase of testing involved using a 20W charger. After plugging in the devices, I observed temperatures across all models. The thermal imaging camera revealed that while there was some heating, none of the devices reached excessively high temperatures.

- **iPhone 15 Pro**: 83°F

- **iPhone 14 Pro Max (iOS 17)**: 84°F

- **iPhone 14 Pro Max (iOS 16)**: 82°F

- **Samsung S23 Ultra**: 79°F

These temperatures were within normal ranges and not high enough to cause discomfort. However, the key takeaway here is that lower charging speeds don’t seem to trigger overheating issues.

## Testing Phase 2: Fast Charging (65W)

The next phase involved switching to a 65W fast charger to simulate faster charging conditions. This increased the load on the devices significantly.

- **iPhone 15 Pro**: Reached 93°F

- **iPhone 14 Pro Max (iOS 17)**: Hit 96°F

- **iPhone 14 Pro Max (iOS 16)**: Cooled slightly at 92°F

- **Samsung S23 Ultra**: Stayed below 85°F

While the temperatures were higher, they still didn’t reach the extreme levels reported in some user complaints. This suggests that the overheating issue, if it exists, may only occur under specific conditions or with certain devices.

## Testing Phase 3: Maximum Load (100W)

To push the limits further, I used a 100W charger on the iPhone 14 Pro Max. The results were as expected:

- **iPhone 15 Pro**: 95°F

- **iPhone 14 Pro Max (iOS 17)**: 96°F

- **Samsung S23 Ultra**: Reached 94°F

Interestingly, even with the most powerful charger, none of the devices exceeded 96°F. This indicates that while faster charging does contribute to higher temperatures, it’s unlikely to cause the kind of extreme heat reported by some users.

## The Role of Software

Another critical aspect of this investigation is whether software plays a role in overheating. To test this, I ran identical hardware models with different iOS versions:

- **iPhone 14 Pro Max (iOS 17)**: Reached 96°F

- **iPhone 14 Pro Max (iOS 16)**: Stayed cooler at 92°F

This suggests that software optimization could indeed impact how devices handle heat. However, the differences were not significant enough to conclude that iOS 17 is solely responsible for overheating issues.

## Peak Stress Test: Recording 4K Video

To mimic real-world usage, I tested all devices while recording 4K video at 60 frames per second. This is a demanding task that puts strain on both the processor and battery.

- **iPhone 15 Pro**: Reached 107°F

- **iPhone 14 Pro Max (iOS 17)**: Hit 106°F

- **Samsung S23 Ultra**: Stayed below 95°F

These temperatures are high but not necessarily dangerous. The key here is that while the devices do get hot under extreme stress, they’re designed to handle such conditions without permanently damaging components.

## Key Findings and Analysis

Based on this investigation, several conclusions can be drawn:

1. **No Design Flaw**: While some users have reported overheating issues, my tests show that the iPhone 15 Pro doesn’t inherently overheat more than previous models under controlled conditions.

2. **Heat Dissipation**: The titanium frame of the iPhone 15 Pro does conduct and retain heat differently compared to aluminum or stainless steel, but it’s not a major factor in normal usage scenarios.

3. **Software Optimization**: There appears to be some software-related optimization that affects how devices manage heat, but this is likely minor and not the root cause of any issues.

## Conclusion

The iPhone 15 Pro’s overheating concerns, as tested here, seem to be more anecdotal than systemic. While it’s true that all smartphones generate heat under heavy use, there doesn’t appear to be a design flaw specific to the iPhone 15 Pro.

That said, if you’re experiencing excessive heat while using or charging your iPhone 15 Pro, there are steps you can take:

- Avoid using fast chargers in hot environments.

- Let the phone cool down before continuing use.

- Ensure you’re running the latest software version.

Ultimately, unless you’re subjecting your device to extreme conditions like continuous high-resolution video recording or gaming, it’s unlikely that overheating will be a significant issue for most users.

"WEBVTTKind: captionsLanguage: enso I'm sure you've heard the reports at this point the iPhone 15 pro and pro Max went on sale a little less than a week ago and the first owners of the device some of them at least are complaining that the device can get too hot during usage while charging sales of Apple's latest iPhone 15 Pro are heating up and so reportedly are the actual devices it's the Wall Street Journal reporting that some folks are talking about phones that reach 122° yeah some people are suggesting that the iPhone 15 Pro Design is in some way flawed the speculation that I've seen is that it's something in the construction of the phone these are titanium phones titanium does not allow the release of heat from the phone like other materials do so that appears to be one of the issues a speculation and accusation at the moment I want to get to the bottom of it and see if it's even true at all I haven't noticed this I haven't tested for it I've kind of read a couple of Articles I've also seen on Twitter users reporting that their devices are going above 100 fahit and in some cases the charge would stop at 80% it's just heating up too much in an attempt to get to the bottom of this I have done a few things so for one I've got the thermal imaging camera so we can get some good data as far as how hot these phones are getting and then I've also gone out and gotten an iPhone 14 pro Max in this box here this is sealed still at the moment and you probably think that's crazy well it is kind of crazy but I wanted good data here cuz this is a big issue I want to find out if it's actually happening sometimes when the phone is brand new it can heat up a little bit more than it will eventually like shortly after setup there's one more speculation that we're going to address as well which is maybe the overheating is software Associated maybe it's because of iOS 17.0.2 so in order to combat that we've got 17.0.2 installed on another iPhone 14 pro Max could it be software could it be Hardware could it be the latest generation of devices could it be Pro devices versus non-pro would you look at this this is the plus model device with an aluminum frame and we all know those of us that are technology fans that aluminum is incredibly capable when it comes to heat dissipation is it Superior to things like Titanium or even the stainless steel from the previous PR Max version there are so many speculations at the moment couple of headlines iPhone 15 Pro overheating concerns highlighted in two more reports courtesy of Mac Rumors Apple's iPhone Pro draws overheating complaints Insider Forbes Apple iPhone 15 Pro overheating reports and then 9 to5 Mac iPhone 15 Pro Design once again blame for causing overheating problems in this package here we have the new 15 Pro Max Blue titanium all we did is run down the battery to zero in this package let's go ahead and unseal it so you can see it's a brand new phone probably been sitting on the shelf for a while but we'll see what percentage of its 80% battery life it has retained while sitting on the Shelf oh so this one has way too much battery power let's go ahead and run this one all the way down so it's a completely Fair test look at this beautiful setup we have all the devices in front of me now and I've added a couple more in order to spice things up and just get a better idea of the landscape of these devices like the entirety an iPhone 15 regular running iOS 17 15 plus iOS 17 the pro Max which is at the center of this controversy overheat well whether it exists or doesn't exist this is an existing 14 pro Max that was in the studio that had also been updated to iOS 17 and that's interesting because beside it is the new out of thebox 14 pro Max on iOS 16 has not been updated yet so we can see if software is playing a role when you have two identical pieces of hardware and then just for fun on the very end we have the device that I'm currently using the s23 ultra over here we have identical power power bricks actually we've got a lot of power bricks courtesy of our friends over at ankor you guys know that's our charging partner they make a charger for everyone regardless of what you want if you want the ultra portable this is the new Nano Pro so we'll do the 20 W test first and then we'll move over to the more substantial fast Chargers this a 65 wat capable so we'll see if the higher powered Chargers create more heat create more of a problem the key to this test is right here this of course is the thermal imaging camera so we will be checking each of these devices at different intervals to see where exactly they're heating up on the device and the last thing to mention these are all dead dead like completely dead because we want to go from zero 15 plus dead dead 15 Pro Max completely dead 14 pro Max iOS 17 also very dead iOS 16 on the 14 pro Max brand new out of the box dead and s23 Ultra they're all dead and by the way if you want to kill a battery quickly just shoot the highest resolution video and let it run baby will heat up I also have two different temperature gauges we'll use this one for the preliminary and then we'll get the infrared images to see where the devices are heating up as well and then we've also got a timer here we're going to check in at different intervals now keep in mind there's other variables like the temperature of the room so the ambient temperature here table temp 71.2 phone temp 71.2 cuz these things are dead actually a little cooler than that But ultimately the room is pretty cool so any finding we have here you can obviously imagine that if it was warmer in the environment then we would reach these temperatures sooner I'm going to have to plug them in quickly 1 2 3 4 five and six wo let's go ahead and start the timer little Heat going right away can just tell from the touch I'm not going to check until the 5 minute Mark though so I want to let them establish a charge a reminder we're coming off of a 20 W power brick at this point we will get our measurements and then we'll increase the charge rate to see if those measurements change and by how much okay we are approaching the 5minute Mark here let's start on this side Oo we are up for sure 82 and 1/2 83 84 move over to the 15 plus round this same 15 Pro Max iOS 17 a little cooler I found a hot spot not quite 83 yet H 14 pro Max on iOS 17 up over 84 83.4 83.6 very similar and the Samsung is cooler it has not cracked still didn't crack 80 though 797 the s23 ultra is the coolest iPhones are almost all the same temperature at this point now keep in mind those early reports seem to indicate that it was later on in the charge cycle that things started to heat up I think it was around the 80% Mark so this might not be all that significant right now but let's go ahead and reach for the thermal device and see where these are getting hot so we're approaching 15 minutes now or 14 minutes you can see the portions of the device that are hot tend towards the right side if you're looking from from the back and we can look for our brightest spot to sort of see our Peak temperature on each 83 right around 83 it looks like 15 plus maybe slightly less heat bigger body more ability to dissipate more aluminum I mean we're talking about like 1° get over to the pro Max 81.2 close 81 oh 81.5 M the iOS 16 and 17 device are very similar here and the Samsung it looks to be mostly high 70s still approach in 80 but the majority of it tends to stay underneath 80 you can see just how much warmer the iPhone is top to bottom compared to the Samsung like that by how bright that glow happens to be you know what it's nothing crazy going on right now like these are they warm sure they're warm not uncomfortably hot let's check the battery life here real quick so 26% charged 15 Pro Max 15 plus 28% charged 32% charged on the 15 so like we're getting close to that halfway charged point and these things haven't really cracked 90° F we'll check in one more time and then we'll switch the Chargers out for the 65 W models and see if that makes a difference 30 minute Mark 90 oh keep going 93 93 a lot of this is depends on the spot that you're pinpointing but I'm going to basically be looking for hot spots here 93 33 was the hottest I got on this device 93 so they're very comparable at this point 15 Pro Max is border line 93 as well although it is a little bit cooler very comparable 14 pro Max ooh a little hotter I saw it breach 94 yeah there we go 942 iOS 17 iOS 16 942 almost identical and Samsung coming in at 855 886 the iPhones are are basically hot everywhere but the camera section at the moment and the Samsung is a more subtle yellow it's not quite as bright but it looks to be fairly evenly distributed across the back of the device this guy is 83 and this one is 93 like that 10° difference Fahrenheit quite substantial when you're holding it this one feels hot whereas to me this one feels kind of normal I would barely describe it as warm I mean it's obviously warmer than the ambient temperature but not in a noticeable way where this I'd say oh yeah I'm holding that's a hot phone that phone's heating up so that 10° F difference is noticeable is it doing any kind of damage is it incredibly dangerous no at this point it really hasn't impacted anything let's check our charge rates here 61% 49% bigger battery obviously 49% 53% interesting 53% of the 14s a little quicker and the s23 41% so we've been charging now for 35 minutes what do you say we step it up a notch here and go to the more powerful bricks whether that makes a difference or not we'll find out so I'm just going to hit the power switch here now each one of these Chargers is a 65 wat capable the one on the very far end is a 100 W capable charger the 100 watt I will reserve for the Samsung device throw even more power at it and see if we can get it to heat up plugged in and ready to go they had a moment of rest there now let's go ahead and flip the switch and they are coming off the bigger power Bricks now we'll give that about 5 minutes and see if things change looks like the heat has actually gone down a little bit much hotter over here uh the 15 plus is above 95 95 a half was the high there 15 Pro Max ooh that's our new high is the 14 pro Max on iOS 17 reached 96.4 96.6 14 pro Max on iOS 16 92.6 and the s23 ultra ooh we're finally heating up on the 100 wat charger we're into the 9394 this one must be flying now and that's warm now and we're at 58% 15 Pro Max 63% now it's a race to the Finish Line obviously battery sizes are different will we crack 100 and if so at what what moment it was weird that the standard model really cooled off iPhone 15 standard like really cooled off it's not a massive difference so it's not like in one case we're reading 100 and then the other phone is like 80 they're all pretty close maybe with the exception of the standard 15 now which seems to measure for some reason below 90 like 88.8 and then the others are towards 95 at the moment let's give it 10 more minutes give it 10 more minutes 56 minutes of charging quite a bit of charging down even more this one has cooled right off iPhone 15 iOS 17 down to 83.8 at the high and 76% charged 15 plus also cooled off a little bit 89° F 88.8 sitting at 79% charged 15 Pro Max equally cooled off 88.7 88.3 88 not even 88 87.8 76% charged ooh 14 pro Max stays above 90 but barely 79% charged 14 pro Max on iOS 16 88.8 75% charged s23 Ultra now the hottest at 94.4 84% charged well obviously the s23 ultra is taking more power at the moment and recharging faster so that's the reason we're getting more heat here but we still haven't cracked 100 so I think an hour to this we have to step things up a little bit and to see how they work at the extremities we'll open the camera application 4K 60 and we will begin recording camera video 4K 60 record camera video 4K 60 record all right so they're all recording now and recharging taking as much power as they possibly can now they should heat up even more because they're functioning and faster charging I think we'll be able to crack 100 here well let's give it about 5 minutes 1 hour and 7 minutes and the devices are now running application in the background and it's a hefty application oh baby 106.1 was the high here we go 106 107 so you can see here we're up to 107.7 on the iPhone 15 now the 15 plus cools itself off a little better in this terrible scenario 10 4 bigger surface area just ever so slightly better than the iPhone 15 Pro Max coming in 1049 105 still not as hot as the first phone 14 pro Max on iOS 17 cooler wait climbing pretty fast not that much cooler 104 you know 105 106 and obviously the s23 ultra not quite as Hot 100 on the dot they're all up over 100 now what does that feel like to hold that feels burning hot that obviously is burning hot in your hand it is quite uncomfortably hot what is the finding any phone can get hot big time and these have continued to get thinner and lighter charge faster shoot higher resolution video and given a certain combination of stressors pretty much all of them can crack a 100 should it happen when you're just recharging the device probably not it's you know it's difficult for me to validate some of those findings there's so many variables at play like what kind of applications possibly running in the background what is the ambient temperature what is the charger that you're using how much optimization is the phone doing at that particular moment is it brand new or have you used it a bunch such a wide variety of variables and models and I didn't find anything all that out of the ordinary but do I think it's a design flaw do I think there are Corners being cut probably not based on this finding here there might be some devices that are defective that are heating up more easily that have some sort of an issue that's always possibility but my samples in front of me are all extremely comparable we went up to 110.4 here we're still going up1 I think what might be happening in some of these circumstances the person has preheated the phone sounds like we're doing baking here but like was playing games or shot a bunch of video and then immediately plugged it in then the fast charge kicked in so then it was a combination effect but as you can see it's not exclusive to the 15 Pro Max hopefully you can gather some insight from it and hopefully you can go support our sponsor as well over at anchor pick up a little power brick whether it be a 20 wat or maybe you want the 65 I'm a big fan of this unit here for me it's not even that much bigger and has the flip down prong so it's even more portable and then you're going to use it for your Ultra Book one charger to rule them all anyways lots of nice options over there if you found this to be useful in any way go ahead and leave a thumbs up down below leave a comment do you feel that it's heating up too much and if so what series of events causes yours to reach these steaming hot temperatures above 100° fah thanks for watching later guysso I'm sure you've heard the reports at this point the iPhone 15 pro and pro Max went on sale a little less than a week ago and the first owners of the device some of them at least are complaining that the device can get too hot during usage while charging sales of Apple's latest iPhone 15 Pro are heating up and so reportedly are the actual devices it's the Wall Street Journal reporting that some folks are talking about phones that reach 122° yeah some people are suggesting that the iPhone 15 Pro Design is in some way flawed the speculation that I've seen is that it's something in the construction of the phone these are titanium phones titanium does not allow the release of heat from the phone like other materials do so that appears to be one of the issues a speculation and accusation at the moment I want to get to the bottom of it and see if it's even true at all I haven't noticed this I haven't tested for it I've kind of read a couple of Articles I've also seen on Twitter users reporting that their devices are going above 100 fahit and in some cases the charge would stop at 80% it's just heating up too much in an attempt to get to the bottom of this I have done a few things so for one I've got the thermal imaging camera so we can get some good data as far as how hot these phones are getting and then I've also gone out and gotten an iPhone 14 pro Max in this box here this is sealed still at the moment and you probably think that's crazy well it is kind of crazy but I wanted good data here cuz this is a big issue I want to find out if it's actually happening sometimes when the phone is brand new it can heat up a little bit more than it will eventually like shortly after setup there's one more speculation that we're going to address as well which is maybe the overheating is software Associated maybe it's because of iOS 17.0.2 so in order to combat that we've got 17.0.2 installed on another iPhone 14 pro Max could it be software could it be Hardware could it be the latest generation of devices could it be Pro devices versus non-pro would you look at this this is the plus model device with an aluminum frame and we all know those of us that are technology fans that aluminum is incredibly capable when it comes to heat dissipation is it Superior to things like Titanium or even the stainless steel from the previous PR Max version there are so many speculations at the moment couple of headlines iPhone 15 Pro overheating concerns highlighted in two more reports courtesy of Mac Rumors Apple's iPhone Pro draws overheating complaints Insider Forbes Apple iPhone 15 Pro overheating reports and then 9 to5 Mac iPhone 15 Pro Design once again blame for causing overheating problems in this package here we have the new 15 Pro Max Blue titanium all we did is run down the battery to zero in this package let's go ahead and unseal it so you can see it's a brand new phone probably been sitting on the shelf for a while but we'll see what percentage of its 80% battery life it has retained while sitting on the Shelf oh so this one has way too much battery power let's go ahead and run this one all the way down so it's a completely Fair test look at this beautiful setup we have all the devices in front of me now and I've added a couple more in order to spice things up and just get a better idea of the landscape of these devices like the entirety an iPhone 15 regular running iOS 17 15 plus iOS 17 the pro Max which is at the center of this controversy overheat well whether it exists or doesn't exist this is an existing 14 pro Max that was in the studio that had also been updated to iOS 17 and that's interesting because beside it is the new out of thebox 14 pro Max on iOS 16 has not been updated yet so we can see if software is playing a role when you have two identical pieces of hardware and then just for fun on the very end we have the device that I'm currently using the s23 ultra over here we have identical power power bricks actually we've got a lot of power bricks courtesy of our friends over at ankor you guys know that's our charging partner they make a charger for everyone regardless of what you want if you want the ultra portable this is the new Nano Pro so we'll do the 20 W test first and then we'll move over to the more substantial fast Chargers this a 65 wat capable so we'll see if the higher powered Chargers create more heat create more of a problem the key to this test is right here this of course is the thermal imaging camera so we will be checking each of these devices at different intervals to see where exactly they're heating up on the device and the last thing to mention these are all dead dead like completely dead because we want to go from zero 15 plus dead dead 15 Pro Max completely dead 14 pro Max iOS 17 also very dead iOS 16 on the 14 pro Max brand new out of the box dead and s23 Ultra they're all dead and by the way if you want to kill a battery quickly just shoot the highest resolution video and let it run baby will heat up I also have two different temperature gauges we'll use this one for the preliminary and then we'll get the infrared images to see where the devices are heating up as well and then we've also got a timer here we're going to check in at different intervals now keep in mind there's other variables like the temperature of the room so the ambient temperature here table temp 71.2 phone temp 71.2 cuz these things are dead actually a little cooler than that But ultimately the room is pretty cool so any finding we have here you can obviously imagine that if it was warmer in the environment then we would reach these temperatures sooner I'm going to have to plug them in quickly 1 2 3 4 five and six wo let's go ahead and start the timer little Heat going right away can just tell from the touch I'm not going to check until the 5 minute Mark though so I want to let them establish a charge a reminder we're coming off of a 20 W power brick at this point we will get our measurements and then we'll increase the charge rate to see if those measurements change and by how much okay we are approaching the 5minute Mark here let's start on this side Oo we are up for sure 82 and 1/2 83 84 move over to the 15 plus round this same 15 Pro Max iOS 17 a little cooler I found a hot spot not quite 83 yet H 14 pro Max on iOS 17 up over 84 83.4 83.6 very similar and the Samsung is cooler it has not cracked still didn't crack 80 though 797 the s23 ultra is the coolest iPhones are almost all the same temperature at this point now keep in mind those early reports seem to indicate that it was later on in the charge cycle that things started to heat up I think it was around the 80% Mark so this might not be all that significant right now but let's go ahead and reach for the thermal device and see where these are getting hot so we're approaching 15 minutes now or 14 minutes you can see the portions of the device that are hot tend towards the right side if you're looking from from the back and we can look for our brightest spot to sort of see our Peak temperature on each 83 right around 83 it looks like 15 plus maybe slightly less heat bigger body more ability to dissipate more aluminum I mean we're talking about like 1° get over to the pro Max 81.2 close 81 oh 81.5 M the iOS 16 and 17 device are very similar here and the Samsung it looks to be mostly high 70s still approach in 80 but the majority of it tends to stay underneath 80 you can see just how much warmer the iPhone is top to bottom compared to the Samsung like that by how bright that glow happens to be you know what it's nothing crazy going on right now like these are they warm sure they're warm not uncomfortably hot let's check the battery life here real quick so 26% charged 15 Pro Max 15 plus 28% charged 32% charged on the 15 so like we're getting close to that halfway charged point and these things haven't really cracked 90° F we'll check in one more time and then we'll switch the Chargers out for the 65 W models and see if that makes a difference 30 minute Mark 90 oh keep going 93 93 a lot of this is depends on the spot that you're pinpointing but I'm going to basically be looking for hot spots here 93 33 was the hottest I got on this device 93 so they're very comparable at this point 15 Pro Max is border line 93 as well although it is a little bit cooler very comparable 14 pro Max ooh a little hotter I saw it breach 94 yeah there we go 942 iOS 17 iOS 16 942 almost identical and Samsung coming in at 855 886 the iPhones are are basically hot everywhere but the camera section at the moment and the Samsung is a more subtle yellow it's not quite as bright but it looks to be fairly evenly distributed across the back of the device this guy is 83 and this one is 93 like that 10° difference Fahrenheit quite substantial when you're holding it this one feels hot whereas to me this one feels kind of normal I would barely describe it as warm I mean it's obviously warmer than the ambient temperature but not in a noticeable way where this I'd say oh yeah I'm holding that's a hot phone that phone's heating up so that 10° F difference is noticeable is it doing any kind of damage is it incredibly dangerous no at this point it really hasn't impacted anything let's check our charge rates here 61% 49% bigger battery obviously 49% 53% interesting 53% of the 14s a little quicker and the s23 41% so we've been charging now for 35 minutes what do you say we step it up a notch here and go to the more powerful bricks whether that makes a difference or not we'll find out so I'm just going to hit the power switch here now each one of these Chargers is a 65 wat capable the one on the very far end is a 100 W capable charger the 100 watt I will reserve for the Samsung device throw even more power at it and see if we can get it to heat up plugged in and ready to go they had a moment of rest there now let's go ahead and flip the switch and they are coming off the bigger power Bricks now we'll give that about 5 minutes and see if things change looks like the heat has actually gone down a little bit much hotter over here uh the 15 plus is above 95 95 a half was the high there 15 Pro Max ooh that's our new high is the 14 pro Max on iOS 17 reached 96.4 96.6 14 pro Max on iOS 16 92.6 and the s23 ultra ooh we're finally heating up on the 100 wat charger we're into the 9394 this one must be flying now and that's warm now and we're at 58% 15 Pro Max 63% now it's a race to the Finish Line obviously battery sizes are different will we crack 100 and if so at what what moment it was weird that the standard model really cooled off iPhone 15 standard like really cooled off it's not a massive difference so it's not like in one case we're reading 100 and then the other phone is like 80 they're all pretty close maybe with the exception of the standard 15 now which seems to measure for some reason below 90 like 88.8 and then the others are towards 95 at the moment let's give it 10 more minutes give it 10 more minutes 56 minutes of charging quite a bit of charging down even more this one has cooled right off iPhone 15 iOS 17 down to 83.8 at the high and 76% charged 15 plus also cooled off a little bit 89° F 88.8 sitting at 79% charged 15 Pro Max equally cooled off 88.7 88.3 88 not even 88 87.8 76% charged ooh 14 pro Max stays above 90 but barely 79% charged 14 pro Max on iOS 16 88.8 75% charged s23 Ultra now the hottest at 94.4 84% charged well obviously the s23 ultra is taking more power at the moment and recharging faster so that's the reason we're getting more heat here but we still haven't cracked 100 so I think an hour to this we have to step things up a little bit and to see how they work at the extremities we'll open the camera application 4K 60 and we will begin recording camera video 4K 60 record camera video 4K 60 record all right so they're all recording now and recharging taking as much power as they possibly can now they should heat up even more because they're functioning and faster charging I think we'll be able to crack 100 here well let's give it about 5 minutes 1 hour and 7 minutes and the devices are now running application in the background and it's a hefty application oh baby 106.1 was the high here we go 106 107 so you can see here we're up to 107.7 on the iPhone 15 now the 15 plus cools itself off a little better in this terrible scenario 10 4 bigger surface area just ever so slightly better than the iPhone 15 Pro Max coming in 1049 105 still not as hot as the first phone 14 pro Max on iOS 17 cooler wait climbing pretty fast not that much cooler 104 you know 105 106 and obviously the s23 ultra not quite as Hot 100 on the dot they're all up over 100 now what does that feel like to hold that feels burning hot that obviously is burning hot in your hand it is quite uncomfortably hot what is the finding any phone can get hot big time and these have continued to get thinner and lighter charge faster shoot higher resolution video and given a certain combination of stressors pretty much all of them can crack a 100 should it happen when you're just recharging the device probably not it's you know it's difficult for me to validate some of those findings there's so many variables at play like what kind of applications possibly running in the background what is the ambient temperature what is the charger that you're using how much optimization is the phone doing at that particular moment is it brand new or have you used it a bunch such a wide variety of variables and models and I didn't find anything all that out of the ordinary but do I think it's a design flaw do I think there are Corners being cut probably not based on this finding here there might be some devices that are defective that are heating up more easily that have some sort of an issue that's always possibility but my samples in front of me are all extremely comparable we went up to 110.4 here we're still going up1 I think what might be happening in some of these circumstances the person has preheated the phone sounds like we're doing baking here but like was playing games or shot a bunch of video and then immediately plugged it in then the fast charge kicked in so then it was a combination effect but as you can see it's not exclusive to the 15 Pro Max hopefully you can gather some insight from it and hopefully you can go support our sponsor as well over at anchor pick up a little power brick whether it be a 20 wat or maybe you want the 65 I'm a big fan of this unit here for me it's not even that much bigger and has the flip down prong so it's even more portable and then you're going to use it for your Ultra Book one charger to rule them all anyways lots of nice options over there if you found this to be useful in any way go ahead and leave a thumbs up down below leave a comment do you feel that it's heating up too much and if so what series of events causes yours to reach these steaming hot temperatures above 100° fah thanks for watching later guys\n"