The Xperia Z3 and Z3 Compact are critical for Sony, after losing $1.7 billion on mobiles this year, they need the newest flagship to work in the United States and Europe. It looks like the Japanese company has got one area spot on – battery life.

In early tests, the Xperia Z3 appears to be the best mobile phone in 2014 when it comes to battery life. Sony has added a 3100mAh battery into the device, larger than the HTC One, Galaxy S5 and iPhone 6 battery, in order to get a few more hours.

Xperia

The Xperia Z3 has a screen on time of around nine and a half hours, compared to the seven hours on the Galaxy S5 and five hours of the iPhone 6, this is extremely impressive. The only one to come close is the Huawei Ascend Mate7, a large phablet with a 4100mAh battery.

This is good PR for Sony, especially for Android fans who are looking for insane battery life. The nine and a half hours is not indicative of a real-life case either, if it has nine hours screen on time, this could translate into three to four days without needing a charge.

Sony has always benefitted from optimised battery life on their Xperia smartphones. The Xperia Z2 has one of the highest battery life stats as well, lasting seven hours without charge.

This is due to Sony’s work on their Android skin, which removes some of the battery draining features. Compare this to Samsung’s skin, TouchWiz UI, which soaks up a lot of battery life and makes some Samsung devices only last a few hours off charge.

Android fans might still be wary of the Xperia Z3 and Z3 Compact, but Sony has worked hard to make a device that looks and feels great. It is water-resistant, has a killer battery life, simplistic UI and the performance matches with the HTC One or Galaxy S5.