Irrespective of Brands. After sales support of the all the Indian brands are equally bad. Wifi tethering is there in every stock andriod & Xolo Q800 also have it. You can also use an app for the purpose. Btw if you have decided to go for Xolo. Go for Xolo Q800 X edition instead of Xolo Q 800. Q800 X edition support 1080p videos & have a slightly better mtk processor.