We reviewed the Sony Xperia 1 II a little over a month ago and we enjoyed it for its camera prowess and extensive feature set, among other things. What we couldn’t do at that time was test its battery life as the firmware we had running during the review wasn’t finalized in that particular respect. Now that we got the retail-grade software we were finally able to run the tests.

The numbers we got out of the Xperia 1 II are better than what we clocked on the previous generation, though it’s not a huge difference. We measured 10 hours of Wi-Fi web browsing, up from the Xperia 1’s 9 hours and twelve and half hours of offline video playback, another 1:30h increase. Neither result is great by today’s standards, particularly when you account for the 60Hz refresh rate display, but we do appreciate the improvement.
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https://www.gsmarena.com/sony_xperia_1_ii_battery_life-news-44138.php