This phone is running Tinzen Operating system, like most Samsung TVS, Blu-ray players and many other Samsung devices

Overall this is a great phone for the GYM.I listen to music and it tracks my work outs

STICK WITH THE BASICS.I installed a watch face that crashed my phone and forced me to restart the watch

It is funny that when you search for a list of compatible phones on Samsung's site, Samsung is not on the list, leaving you to assume that all Samsung phones should be good to go

I have a Samsung Galaxy Grand Prime phone Android 5.1.1

It's like having mini phone.

5 hour battery life, bad phone connection, useless apps