Your comment reflects my own opinion of Chuwi products. I purchased a UBook tablet nearly two years ago due its price and what it offered as a window’s operating system. I quickly learned that if the device was being used for a period of time it would overheat the battery and cause it to expand and therefore ruin the device. I have always used a cooling pad on all my other devices and said many times on this site for everyone to use a cooling pad. On reading this site I was horrified to constantly read of owners issues with all of the ranges of Chuwi products. I would never buy another device from Chuwi as the quality only reflects the low price of their products. The old saying you only get what you pay for is very true to Chuwi. To any person who wants a decent device look to the likes ofASUS , Samsung, Lenovo or HP to have a lot better experience and a lot less of problems.