Sony introduced the Xperia Z5 last month and it’s slowly becoming available in more markets. Once again, the company kept the design of the hardware pretty much intact but changed a few aspects. The metallic frame surrounding the device is now less rounded, the power button was completely redesigned and it now integrates a fingerprint scanner, and the back is still made out of glass, but the company used a different texture making it less prone to smudges and fingerprints. Some of the internals were upgraded, like the all-new 23-megapixel sensor in the main camera, but most of them stayed the same.
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This brings us to the processor that powers up the Xperia Z5, it is still the highly-controversial Snapdragon 810 by Qualcomm. This is actually the second time that Sony uses it in one of their phones, their first attempt was on this year’s Xperia Z3+, but some users complained about the high temperatures it produced while using some demanding apps. Newer versions of the processor were supposed to fix the overheating issue, but companies still had to optimize their software to prevent this behavior. Obviously, some people might wonder if the temperature of the new smartphone will become an issue, as some found that the Xperia Z5 Compact runs a little hotter than expected.
Android Central has made a few tests using an infrared thermometer to see how the Xperia Z5 handles the temperature of the processor. They measured the temperature shortly after the phone was booted up and it read 25.1C (77.1F). Then they started recording 4K video, one of the most intensive processes, and after 5 minutes, the temperature raised to 35C (95F), but it was mentioned that the phone was still tolerable to hold. They were able to record a 25-minute 4K clip in a moderately cool room and the temperature was 40.5C (105F), while this seems to be very high, they were still able to hold the phone without burning their skin. It is important to notice that the clip was limited because it drained the battery and not to prevent a higher temperature. The reporter mentions that the phone ran a little hotter when he used it in Asia, though the phone probably ran an unfinished software. The phone uses only 5 cores for most of the tasks and it uses 4 when the temperature rises. Sony seems to have figured out how to work with this processor, but it is unknown if the company used a cooling system like the one found on the Xperia Z5 Premium.