Comparisons

iOS 9 vs iOS 15 BATTERY Test on iPhone 6s - First iOS vs Last iOS!

I compare an iPhone 6s on it's original iOS version (iOS 9) to another iPhone 6s on it's final iOS version (iOS 15) in a battery drain test.

Twitter: https://twitter.com/UltimateiDevice

Instagram: https://www.instagram.com/ultimateidevicevids/

Facebook: https://www.facebook.com/pages/UltimateiDeviceVids/1476353952628051

Read next

iOS 26.2 vs iOS 26.1 BATTERY Test on iPhone 17, 16, 15, 14, 13, 12, 11

iOS 26.2 vs iOS 26.1 BATTERY Test on iPhone 17, 16, 15, 14, 13, 12, 11

We compare iOS 26.2 (23C55) to iOS 26.1 (23B85) on every iPhone generation in this in-depth battery test. Subscribe on YouTube: https://www.youtube.com/@UltimateiDeviceVids Twitter: https://www.twitter.com/UltimateiDevice Instagram: https://www.instagram.com/ultimateidevicevids/ TikTok: https://www.tiktok.com/@ultimateidevicevids Facebook: https://www.facebook.

iPhone 17 Charge Test: 40W vs 35W vs 25W vs 20W - Wired & MagSafe

iPhone 17 Charge Test: 40W vs 35W vs 25W vs 20W - Wired & MagSafe

We conduct an iPhone 17 charging speed test comparing the Apple 40W, 35W, and 20W power adapters for wired charging, along with the 25W MagSafe charger. Subscribe on YouTube: https://www.youtube.com/@UltimateiDeviceVids Twitter: https://www.twitter.com/UltimateiDevice Instagram: https://www.instagram.com/ultimateidevicevids/ TikTok: https://www.tiktok.

iPad Pro M5 11” vs iPad Air M3 11” vs iPad (A16) vs iPad mini 7 BATTERY Test

iPad Pro M5 11” vs iPad Air M3 11” vs iPad (A16) vs iPad mini 7 BATTERY Test

We compare the battery performance of every iPad in Apple's late 2025/early 2026 lineup in this in-depth battery drain test! Subscribe on YouTube: https://www.youtube.com/@UltimateiDeviceVids Twitter: https://www.twitter.com/UltimateiDevice Instagram: https://www.instagram.com/ultimateidevicevids/ TikTok: https://www.tiktok.com/@ultimateidevicevids Facebook: