Samsung Galaxy J Max battery was getting discharged within 2-3 hrs when fully in use. It’s charging very slow, after putting it into charge for 3-4 hrs barely it get charged 40-45% only. Very poor touch, sometime you have to tape twice - thrice on space bar or on some other key. Heating issues, Poor Sound quality, Hangs a lot. The main camera showing blur picture. Phones sensor not working properly.