With its slower processor and limited memory, the iPhone 3G is not compatible with all the new features of IOS in April, above all, multitasking. Even with the reduced features, have heard the complaints of poor performance of the IOS 4 on iPhone 3G. We wonder if the battery life was also negatively affected by the operating system update, so he set out to prove it.
Following the instructions of Lifehacker, we have reduced a 3G iPhone that was running IOS IOS 4 to 3.1.3 and published a series of tasks. Then upgrade the iPhone 3G iOS4 and ran the same set of tasks.
The iPhone 3G IOS 5 percent in April lasted longer (10 minutes) than the iPhone 3G three-configured IOS. That's not a big difference, but frankly, I thought the battery life will decrease, not increase, after updating the OS. Curiously, the iPhone 3 IOS took less time to download our rented movie that IOS 4 iPhone 3G, although the application downloads were faster with the new OS. (The full results of examination are given in Table 1.)
To see what IOS four made in terms of battery life on the 3G iPhone we are the same tests again. It turns out that a 3G iPhone disqualification is not easy and our attempts to do so not in the 3G iPhone at the office of Macworld.
Fortunately, our intern Blair found a friend I had not yet updated their iPhone 3G to the latest operating system, and so spent a couple of days testing the iPhone with both operating systems. (The full results of examination are given in Table 2.)
In these tests, there was a further increase in battery life with IOS 4 in updating 3G iPhone 14 percent longer (35 minutes) than with IOS 3. This time, our rented movie downloads took less time than IOS IOS 4 3.
[James Galbraith is Macworld Lab director. Frank Hanley and Blair McKinley Noble contributed to this report.] (Yahoo!)
Following the instructions of Lifehacker, we have reduced a 3G iPhone that was running IOS IOS 4 to 3.1.3 and published a series of tasks. Then upgrade the iPhone 3G iOS4 and ran the same set of tasks.
The iPhone 3G IOS 5 percent in April lasted longer (10 minutes) than the iPhone 3G three-configured IOS. That's not a big difference, but frankly, I thought the battery life will decrease, not increase, after updating the OS. Curiously, the iPhone 3 IOS took less time to download our rented movie that IOS 4 iPhone 3G, although the application downloads were faster with the new OS. (The full results of examination are given in Table 1.)
To see what IOS four made in terms of battery life on the 3G iPhone we are the same tests again. It turns out that a 3G iPhone disqualification is not easy and our attempts to do so not in the 3G iPhone at the office of Macworld.
Fortunately, our intern Blair found a friend I had not yet updated their iPhone 3G to the latest operating system, and so spent a couple of days testing the iPhone with both operating systems. (The full results of examination are given in Table 2.)
In these tests, there was a further increase in battery life with IOS 4 in updating 3G iPhone 14 percent longer (35 minutes) than with IOS 3. This time, our rented movie downloads took less time than IOS IOS 4 3.
[James Galbraith is Macworld Lab director. Frank Hanley and Blair McKinley Noble contributed to this report.] (Yahoo!)
