At the opening keynote of WWDC, Steve Jobs stated that the new iPhone 4 has a larger battery than the previous models and brings a performance increase of approximately 40%, given that the iPhone 4 has a more powerful processor and more RAM. Those from iSpazio they did a small battery autonomy test to see the increase brought by the new battery, but unfortunately these tests were done on a new terminal that has not been through enough battery recharge cycles, so the results can be slightly inaccurate.
The iPhone 4 used in this test was open:
- Wifi;
- Bluetooth
- 3G;
- GPS;
- Push Notifications and some active applications that supported this function;
- Screen brightness set to medium.
Here's how the iPhone 4 battery lasted a day of use:
06:00 – The terminal was opened and the battery was 100%;
09:43 – Without use the battery had 93%;
12:00 – 6 minutes of browsing + 7 SMS and the battery still had 80%;
12:15 – 9 minutes of FaceTime + 4 SMS and the battery still had 76%
14:52 – 34 messages sent using the Pushme.to application + several e-mails + 2 telephone calls of 1 minute each and the battery still had 61%;
15:27 – Without use the battery still had 59%;
16:26 – Without use the battery still had 53%;
20:34 – 3 calls of 5 minutes each via FaceTime, 45 messages via the Pushme.to application, 12 e-mails + 1 10-minute montage in iMovie and the battery still had 20%;
21:14 – Without use the battery still had 13%;
21:54 – Without use the battery still had 10%;
22:27 – Without use the battery still had 9%;
22:32 – 12 messages via Pushme.to and the battery still had 4%;
22:46 – Without use the battery still had 2%;
23:20 – The phone hung up.
To be honest, I'm not too impressed by the phone's performance, but iSpazio says that an iPhone 3GS should have been charged twice a day under the same conditions of use, excluding the use of FaceTime and iMoive of course. What do you think?
