After a disastrous experience with a (supposedly) brand new Dragon Touch X10, I bought a used Galaxy Tab E. What a difference!Battery life on Tab E is impressive. I think the battery went down by 1% after a day of standby.The tablet is a bit less snappy than my Galaxy S7 phone but the two products are in very different price categories. I am happy with Tab E's performance so far.Tablet came with Android 7 on it, ready to be used. I reset it for good measure.Haven't tried 4G connectivity - my intention was to use this tablet on WiFi only which it does great with. Tab E has dual band WiFi, works well in my apartment as well as at the office.I actually can't tell that the tablet was used at all. Cosmetically it looks brand new.