**Battery Life: The Key to Flagship Phones**

When it comes to flagship phones, battery life is an essential aspect to consider. Both the Samsung Galaxy S9 Plus and iPhone 10 are equipped with OLED screens, which can be both beneficial and detrimental to battery life.

On the plus side, each pixel in an OLED screen is individually backlit, meaning that pixels displaying darker colors consume less power than those displaying bright or white colors. This can result in increased battery life, as demonstrated in our dark mode battery test video. However, on the downside, OLED displays consume more power per pixel when displaying bright or white colors compared to traditional LCD displays. As a result, it is recommended to turn on auto brightness and use a dark theme whenever available.

The Samsung Galaxy S9 Plus has a larger display with a higher resolution than the iPhone 10, which may seem like it would consume more power. However, its 3,500 milliamp battery is significantly larger than the iPhone's 2,716 milliamp battery. This disparity in battery size should be enough to make up for any potential power consumption difference caused by the screen.

**Standby Battery Life Test**

To compare standby battery life between the two phones, we conducted a simple test. We charged both devices to 100%, closed all background apps, and left them in our office until the next morning, approximately 16 hours later. To our surprise, the iPhone 10 was at 99% battery life, while the Samsung Galaxy S9 Plus had only managed to drop to 85%. This result seems unrealistic for an iPhone battery test, but it may be true that iPhones have better standby battery life.

**Battery Life Test: YouTube and Games**

To further compare battery life between the two phones, we conducted several tests using different activities. First, we set both devices to around 80% brightness and played a three-hour-long YouTube video on them. After three hours, the iPhone 10 had only managed to drain to 55% battery life, while the Samsung Galaxy S9 Plus had dropped to 67%. The Samsung phone was significantly more efficient in this test.

Next, we played a fairly graphics-intensive game called Vainglory for exactly an hour on both devices. We also cranked up the brightness to maximum to maximize battery usage. After an hour, the iPhone 10 was at an impressive 87% battery life, while the Samsung Galaxy S9 Plus had only managed to last 84%. Again, the Samsung phone seemed more efficient in this test.

**Geekbench Battery Benchmark**

To further compare the two phones' battery performance, we conducted a Geekbench battery benchmark. First, we ran a partial discharge test, which dims the screen and runs processor-intensive tasks for three hours straight. The iPhone 10 scored 2566 points after the three-hour test, while the Samsung Galaxy S9 Plus scored an extremely impressive 4500 points, a difference of 79%.

We then ran the full discharge test, which completely drained both devices. The iPhone 10 took approximately four hours and 45 minutes to drain, scoring 2845 points in Geekbench for single-core benchmark and 26% higher than the Samsung score in multi-core performance. However, the Samsung Galaxy S9 Plus lasted a staggering 7 hours and 22 minutes before completely draining, scoring an incredible 4420 points.

**Why the Difference?**

The difference in battery life between the two phones is largely due to the disparity in their battery sizes. While the iPhone's larger battery size may seem like it would make up for any power consumption difference caused by the screen, the Samsung Galaxy S9 Plus' significantly larger battery size appears to be the deciding factor. The iPhone 10's performance was not as high as expected, particularly in single-core benchmarking and multi-core tests.

The results of these tests show that the Samsung Galaxy S9 Plus has a clear advantage when it comes to battery life. While the iPhone 10 may have better performance, its smaller battery size cannot compete with the larger capacity of the Samsung phone. As such, if you are looking for a flagship phone with excellent battery life, the Samsung Galaxy S9 Plus is the clear winner.

**Conclusion**

In conclusion, battery life is an essential aspect to consider when choosing a flagship phone. Both the Samsung Galaxy S9 Plus and iPhone 10 have their strengths and weaknesses when it comes to battery performance. While the iPhone 10 may have better performance, its smaller battery size means that it cannot compete with the larger capacity of the Samsung phone.

If you are looking for a flagship phone with excellent battery life, the Samsung Galaxy S9 Plus is the clear winner. Its larger battery size and impressive performance make it the perfect choice for those who want a device that can last all day.

"WEBVTTKind: captionsLanguage: enhey guys this is vadim and welcome to Apple insider we've done a bunch of comparisons between Apple's iPhone 10 and Samsung's Galaxy s 9 plus and we have to credit Samsung for all the improvements over last year's snow eight we wrap things up with their full comparison between the two which you can watch by clicking the card above but we left out one piece of the puzzle battery life both flagship phones are equipped with OLED screens which can both be a good thing and a bad thing for battery life on the good side each pixel is individually backlit so pixels displaying darker colors consume less power than pixels displaying bright or white colors this can mean increased battery life which we showed in our dark mode battery test video on the bad side OLED displays consume more power per pixel when displaying those bright or white colors when compared to traditional LCD displays so if your phone has an OLED screen we recommend turning on auto brightness and using a dark theme whenever available the s9 plus actually has a larger in higher resolution display so it should consume more power but luckily it has a 3,500 milliamp battery which is 29 percent larger than the iPhones hence 2716 milliamp battery so it's definitely got a lot more juice to work with the iPhone 10s battery is more comparable to the regular galaxy s 9s 3000 milliamp battery but we're comparing the best phone that each company has to offer we started off with a simple standby test we charged each phone up to 100% closed all background apps and left them in our office until we came in the next morning which was around 16 hours later the galaxy s 9 plus was at 85% battery life in the 10 was oddly at 99% some users have said that iPhones have better standby battery life and that may be true but 99% after 16 hours seems unrealistic last week we ran a battery life test on the iPhone 10 showcasing some impressive battery life savings while using YouTube's dark theme unfortunately that theme isn't available on Android yet so we ran the test on the s 9 plus using YouTube's default theme we set both phones to around 80% brightness and played a three hour long YouTube video after three hours the iPhone 10 was at 55 percent while the s 9 plus only went down as 67 percent so the Samsung definitely takes the cake in this test by a good margin next we played a fairly graphics-intensive game namely vainglory 55 on both phones for exactly an hour each we were going to play fortnight but it's currently only available on iOS we also cranked up the brightness on both phones to a hundred percent to maximize the battery usage so we could hopefully see a bigger difference after an hour the iPhone 10 was at an impressive 87% battery life and the Samsung was at 84 percent since the s 9 plus has a larger battery it would probably outlast the iPhone if you played until both batteries drained either way they both did a great job considering brightness was maxed out for our next test we ran Geekbench fours battery benchmark which is probably the most accurate way of testing the battery life first we ran the partial discharge test which dims the screen and runs processor intensive tasks for 3 hours straight the iPhone 10 was at 40 percent battery life after the 3 hour benchmark was finished with the score of 2566 the galaxy s 9 plus finished with an extremely impressive 63 percent battery life remaining in it scored a mass of 4500 92 points which is 79 percent higher than the 10 we noticed that the Samsung did really well in longer battery tests and from these tests it seems like the iPhones head inaccurately displays the battery percentage while closer to a full charge and quickly drops to catch up with his actual battery life when nearing Mt for our final test we ran the benchmark again except now we ran the full discharge test the iPhone 10 completely drained after 4 hours and 45 minutes and scored 2845 points slightly better than on the partial drain tests the s9 plus on the other hand lasted 7 hours and 22 minutes before completely draining scoring 4420 points the Samsung completely blew the iPhone 10 out of the water with a battery test but why is there such a big difference here compared to our other tests obviously the s9 plusses battery is almost a third larger but if we look at performance differences the iPhone 10 scores over twice as high in Geekbench for single core benchmark and 26% higher in multi-core since this been mark focuses on putting in a hundred percent workload on the CPU the 10 is naturally going to use more power either way it's safe to say the s9 plus is undoubtedly superior in terms of battery life thanks for watching and make sure to subscribe and enable notifications so you don't miss out on more videos like this one and we'll see you in the next one if you enjoy this video like it and hit that subscribe button also check out a price guide which makes it extremely easy to find the best deals and Apple products updated daily be sure to follow us on social media and we'll see you in the next videohey guys this is vadim and welcome to Apple insider we've done a bunch of comparisons between Apple's iPhone 10 and Samsung's Galaxy s 9 plus and we have to credit Samsung for all the improvements over last year's snow eight we wrap things up with their full comparison between the two which you can watch by clicking the card above but we left out one piece of the puzzle battery life both flagship phones are equipped with OLED screens which can both be a good thing and a bad thing for battery life on the good side each pixel is individually backlit so pixels displaying darker colors consume less power than pixels displaying bright or white colors this can mean increased battery life which we showed in our dark mode battery test video on the bad side OLED displays consume more power per pixel when displaying those bright or white colors when compared to traditional LCD displays so if your phone has an OLED screen we recommend turning on auto brightness and using a dark theme whenever available the s9 plus actually has a larger in higher resolution display so it should consume more power but luckily it has a 3,500 milliamp battery which is 29 percent larger than the iPhones hence 2716 milliamp battery so it's definitely got a lot more juice to work with the iPhone 10s battery is more comparable to the regular galaxy s 9s 3000 milliamp battery but we're comparing the best phone that each company has to offer we started off with a simple standby test we charged each phone up to 100% closed all background apps and left them in our office until we came in the next morning which was around 16 hours later the galaxy s 9 plus was at 85% battery life in the 10 was oddly at 99% some users have said that iPhones have better standby battery life and that may be true but 99% after 16 hours seems unrealistic last week we ran a battery life test on the iPhone 10 showcasing some impressive battery life savings while using YouTube's dark theme unfortunately that theme isn't available on Android yet so we ran the test on the s 9 plus using YouTube's default theme we set both phones to around 80% brightness and played a three hour long YouTube video after three hours the iPhone 10 was at 55 percent while the s 9 plus only went down as 67 percent so the Samsung definitely takes the cake in this test by a good margin next we played a fairly graphics-intensive game namely vainglory 55 on both phones for exactly an hour each we were going to play fortnight but it's currently only available on iOS we also cranked up the brightness on both phones to a hundred percent to maximize the battery usage so we could hopefully see a bigger difference after an hour the iPhone 10 was at an impressive 87% battery life and the Samsung was at 84 percent since the s 9 plus has a larger battery it would probably outlast the iPhone if you played until both batteries drained either way they both did a great job considering brightness was maxed out for our next test we ran Geekbench fours battery benchmark which is probably the most accurate way of testing the battery life first we ran the partial discharge test which dims the screen and runs processor intensive tasks for 3 hours straight the iPhone 10 was at 40 percent battery life after the 3 hour benchmark was finished with the score of 2566 the galaxy s 9 plus finished with an extremely impressive 63 percent battery life remaining in it scored a mass of 4500 92 points which is 79 percent higher than the 10 we noticed that the Samsung did really well in longer battery tests and from these tests it seems like the iPhones head inaccurately displays the battery percentage while closer to a full charge and quickly drops to catch up with his actual battery life when nearing Mt for our final test we ran the benchmark again except now we ran the full discharge test the iPhone 10 completely drained after 4 hours and 45 minutes and scored 2845 points slightly better than on the partial drain tests the s9 plus on the other hand lasted 7 hours and 22 minutes before completely draining scoring 4420 points the Samsung completely blew the iPhone 10 out of the water with a battery test but why is there such a big difference here compared to our other tests obviously the s9 plusses battery is almost a third larger but if we look at performance differences the iPhone 10 scores over twice as high in Geekbench for single core benchmark and 26% higher in multi-core since this been mark focuses on putting in a hundred percent workload on the CPU the 10 is naturally going to use more power either way it's safe to say the s9 plus is undoubtedly superior in terms of battery life thanks for watching and make sure to subscribe and enable notifications so you don't miss out on more videos like this one and we'll see you in the next one if you enjoy this video like it and hit that subscribe button also check out a price guide which makes it extremely easy to find the best deals and Apple products updated daily be sure to follow us on social media and we'll see you in the next video\n"