iPhone 5 internet battery life less than 4S in latest Which? testsSamsung Galaxy SIII best for battery life overall

12 October 2012

iPhone 5

Which? tests have revealed that the battery in the iPhone 5 doesn’t last as long as the iPhone 4S when browsing the internet.

Apple claims that the battery in the new iPhone 5 lasts for up to two hours longer than the battery in the previous model, the iPhone 4S. 

However, in Which? tests where both phones were tested in the exact same way, it actually lasted eight minutes less than the iPhone 4S, running out of battery power after three hours and 20 minutes of constant web browsing.

And, while above average compared to other smartphones, the new iPhone 5 is roundly beaten by Samsung's rival smartphone, the Samung Galaxy S3, which lasted over six hours in the same battery life tests, almost double that of the iPhone 5.

You can read our full iPhone 5 review to see how it performs in the rest of our tests, and see our smartphone battery life comparisons to see how some of the most popular phones compare for battery life when browsing the web.

How we test battery life

Manufacturer claims about battery life give the best possible outcome but because of that are often unrealistic. We test in true life conditions, with screen brightness set to maximum and with medium reception levels. Signal strength can have a serious impact on battery life so we even broadcast our own 3G signal to ensure that the strength is consistent and that every phone is tested in exactly the same way.

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