In the video below the battery life is checked on a range of gadgets, this includes the new Samsung Galaxy S22 Ultra, the Galaxy S21, the iPhone 13 Pro Max, the Google Pixel 6 Pro, and the Xiaomi 12 Pro.
The 5 smartphones are tested side by side and they all have 100% battery life and are run through the same test.
The Samsung Galaxy S22 has a 5000 mAh battery, the Galaxy S21 has a 5000 mAh battery, the iPhone 13 Pro max has a 4352 mAh battery, the Google Pixel 6 Pro comes with a 5003 mAh battery and the Xiaomi 12 Pro features a 4600 mAh battery.
As we can see from the video the handset that died first was the Google Pixel 6 Pro, which was then followed by the Xiaomi 12 Pro, then the Samsung Galaxy S2 Ultra, followed by the S21 Ultra, the last one standing was the iPhone 13 Pro Max.