4K video isn’t a new thing for Sony’s Xperia line. I remember testing 4K video which you can find here all the way back with the Xperia Z3 and since then, we’ve had the Xperia Z3+ (Z4) and now, the Xperia Z5 with the Xperia Z5 Premium also offering a 4K display. Unfortunately for Sony, overheating also isn’t a new thing. In my tests with the Z3, heat became apparent very quickly when recording in 4K, limiting how much you could actually record. With the Xperia Z3+, heat has notoriously become a problem. This is mainly due to the usage of Qualcomm Snapdragon 810 chipsets that have been causing a headache for all manufacturers and not just Sony.

With the Xperia Z5 family also utilizing the Snapdragon 810, is heat once again going to be a problem? After the jump, the Xperia Z5 heat worries are put to the test.

Attending IFA 2015, the crew at Btekt put 4K recording to the test to see if they could get the phone to heat up in the same manner previous devices have.

As you can see, though the phone gets warm, after nearly 10 minutes of 4K video, the Z5 still functioned just fine with no warning that it’s time to tuck the phone aside and allow it to cool down. It’s unclear if this is due to a change from Qualcomm on the hardware side or if Sony has tweaked their software to better accommodate and utilize the chipsets.

Discuss:

Are you impressed by the 4K video recording of the Xperia Z5?