Those from cnet they thought of doing a comparative test between an iPhone 4 GSM, an iPhone 4 CDMA, an HTC MyTouch 4G, a Motorola Atrix 4G and a Samsung Nexus S, all top smartphones. In the test, the autonomy of the battery was checked in terms of playing video clips, the autonomy of the battery in terms of playing songs, the time required to start the terminal and the time required to load a web page. In the case of battery autonomy in terms of playing video clips, the iPhone 4 CDMA with iOS 4.2.1 came out the winner, but it should be mentioned that a movie in 720p format was played on the Android terminals and the same movie converted to mp4 format on the iPhone.
When playing audio, iPhone 4 CDMA is much better even than iPhone 4 GSM, having a 50% longer battery life. Android terminals perform extremely poorly in this regard, HTC MyTouch 4G managing to "gather" only 21 hours of audio playback compared to iPhone 4 GSM with 40 and iPhone 4 CDMA with 67. Regarding boot times, HTC MyTouch 4G is the fastest smartphone, managing to load the operating system in just 6 seconds. When loading web pages, the Android smartphones came out "in front", but the iPhone 4 GSM with iOS 4.3 performed 20% better than the terminals with iOS 4.2.1.
In conclusion, iPhone 4 CDMA seems to have a much better battery life than the GSM version and Android terminals are very bad in terms of battery life.
