I’ve got an old Lenovo Tab3 850M table, running Android 6.0.1
It’s pretty vanilla and I haven’t installed any custom ROMs or rooted the device. The battery is in pretty good condition and the table can idle for around a week I think.
It has an 8 inch IPS display, Quad-Core 1.0GHz ARM Cortex-A53 CPU, ARM Mali-T720 MP2, 500 MHz, 4-Cores GPU, 2GB of RAM, and 16GB internal storage. The cameras are pretty terrible (even for 2016 standards), and the battery is 4300mAh.
What useful things can I do with it?
Use it as a media watching device? Watch movies when you’re in bed is like the primary use of tablets I can think of.
The screen resolution (1280 x 800) is kinda bad, and it’s also an IPS display.
Eh on a tablet display its not like 1280x800 is bad for video. Unless you’re a pixel peeper and you hold the display <6 inches from your face the quality difference will be negligible