HTC One X vs iPhone 4S vs S2 vs One S vs Lumia 800 Battery test V2 HD

HTC One X vs iPhone 4S vs S2 vs One S vs Lumia 800 Battery test. Which phone has the best battery power? In our tests we ran a video for 90 minutes with wifi on, push notifications and the screen on full brightness. This is an updated video from a previous one that has been taken down. Keep up to date with the latest technology news: http://twitter.com/techradar Enter our competitions here: http://www.facebook.com/TechRadar Stay on-top of our videos by subscribing to the Techradar Youtube channel: http://www.youtube.com/user/TechRadar