In our own tests, we found the iPhone 12 family’s battery lacking compared not just to rival Android phones, but also the iPhone 11.
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And it seems we’re not alone. A thorough round of tests from PhoneArena demonstrates the full extent of the problem, with the iPhone 12 proving particularly weak when playing 3D games.
The 3D gaming battery test saw both the iPhone 12 and 12 Pro last just a minute over three hours, while the iPhone 11 lasted seven hours and 37 minutes. Even the Pixel 5 (5:05) and the iPhone SE (4:59) left the new generation of iPhones in the dust.
PhoneArena suspects some kind of poor optimization for the A14 Bionic chip in current games. The site verified the results by installing Call of Duty Mobile and Minecraft, and “in both cases the iPhones got quite warm and the battery just started melting.” Leaving the games would return the phones to normal battery drain.
In other tests, PhoneArena found the iPhone 12 holding its own a bit more. In the web browsing test, for example, the 12-and-a-half hours managed by both the iPhone 12 and 12 Pro is up there with the Samsung Galaxy S20 and Pixel 5 — and it’s nearly four hours longer than the iPhone 11 Pro managed in the same tests.
The same is true for video playback, where the iPhone 12 and 12 Pro’s scores of under seven hours aren’t exactly spectacular, but are at least in the same ballpark as the iPhone 11. All iPhones were comfortably beaten by the Samsung Galaxy S20 (10:20) and the Google Pixel 5 (8:49), though.
Hopefully performance will improve with software updates — especially for gaming battery drain. But we should temper our expectations a little bit here: the fact of the matter is that this generation of iPhones do have smaller batteries, so there are limits to what can be done. While the iPhone 11 and 11 Pro had 3,110 mAh and 3,04 6mAh cells respectively, the iPhone 12 and 12 Pro have 2,815 mAh batteries.
While the difference in size doesn’t explain the huge discrepancy over real-world stamina, anybody hoping the iPhone 12 will last as long as the iPhone 11 during intensive tasks is probably going to be disappointed.