Flagship Phone Face-Off: Battery Life & Heat Tested

Which flagship phone reigns supreme in battery life and stays cool under pressure? We tested the iPhone 15 Pro Max, Samsung S24 Ultra, and more .

Flagship Phone Battery and Heat Test: iPhone Cools Down the Competition

A new video from YouTube channel TechNick puts seven flagship smartphones through their paces, comparing battery life and heat output. Surprisingly, Apple's iPhone 15 Pro Max didn't emerge as the battery champion this time around.

Flagship Phone Battery and Heat Test: iPhone Cools Down the Competition

The test involved running a variety of everyday tasks on six Android devices and the iPhone 15 Pro Max, including video streaming, music playback, video recording, mobile gaming, and more. The reviewer also periodically measured the temperature of each phone throughout the test.

Phones Tested:

  • Samsung Galaxy S24 Ultra
  • HUAWEI Pura 70 Ultra
  • iPhone 15 Pro Max
  • Honor Magic 6 Pro
  • Xiaomi 14 Ultra
  • vivo X100 Ultra
  • vivo X100 Pro

Before the tests began, all phones were set to the same display brightness, the refresh rate was set to "auto," updated to the latest firmware, and charged to 100%.

Battery Life Results:

  1. Honor Magic 6 Pro: 11 hours 5 minutes
  2. HUAWEI Pura 70 Ultra: 11 hours 3 minutes
  3. vivo X100 Pro: 10 hours 17 minutes
  4. iPhone 15 Pro Max: 9 hours 15 minutes
  5. Samsung Galaxy S24 Ultra: 9 hours 12 minutes
  6. vivo X100 Ultra: 8 hours 46 minutes
  7. Xiaomi 14 Ultra: 7 hours 23 minutes

Despite its efficient chipset, the iPhone 15 Pro Max only managed to secure fourth place.

Temperature Results (Coolest to Hottest):

  1. iPhone 15 Pro Max: 50 °C
  2. Samsung Galaxy S24 Ultra: 52.3 °C
  3. Honor Magic 6 Pro: 57.3 °C
  4. HUAWEI Pura 70 Ultra: 58.2 °C
  5. X100 Pro: 63 °C
  6. Xiaomi 14 Ultra: 67.6 °C
  7. vivo X100 Ultra: 70.1 °C

The iPhone 15 Pro Max reached a maximum temperature of 50°C, a full 20.1°C cooler than the hottest phone, the vivo X100 Ultra.

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