While 4K video recording has been a feature on phones for quite a while now, it's still very taxing. The most common issue is that the phone can quickly overheat from all the effort and stop your recording before you intended. Is that an issue on Sony phones? Youtuber Phone Battles set out to find out. He took the most recent 4K-capable Xperia phones and hit the record button. We suggest you skip to the second test where the phones record a moving image (instead of flat black) as that one is more realistic. The results? The Xperia Z3v started overheating embarrassingly early and...
Source: http://www.gsmarena.com/sony_xperia_4k_video_record_time_how_long_can_you_shoot_before_the_phone_has_to_stop-news-25994.php
