Last week at IFA Sony unveiled their new 4K smartphone, the Xperia Z5 Premium. When the phone was initially announced everyone was incredibly concerned about the battery life holding up while pushing so many pixels. Running 4K all the time seemed crazy for a phone, especially when 2K phones have a hard time making it through a full day for many users. It turns out everyone was right, the Xperia Z5 Premium will not get all-day battery life while running native 4K, because it doesn’t constantly run at 4K resolution.
A post by XDA demonstrates several tests that show Sony is only running the Z5 Premium at native 4K when it actually matters, i.e. when viewing 4K content. This is probably a great move by Sony. Now you can view all of that crispy 4K video shot with the Z5 Premium’s camera, and any Youtube videos shot in 4K, without having the dreadful battery life of running a phone in native 4K all the time. Overall, Sony’s claim of the first 4K smartphone may be a bit exaggerated here, but if it gives the user a better picture when viewing appropriate content then it seems like a win to me. From performance we’ve seen on other devices, the Snapdragon 810 doesn’t have the real-world ability to drive native 4K at all times, so this is probably the best Sony could hope for. While some are claiming Sony is falsely advertising the phone, I think the variable resolution strategy is a good one. I’m still interested in picking up the Z5 Premium if it is available in the US. Anyone out there feel scammed by Sony here?
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