Screen 1.83inch IPS Touch screen ,Pixel 240*280 System RTOS GPS NO Wifi Accuracy 30-50m LBS Accuracy 100m above 4G Video Call By APP or VOLTE Memory 128MB RAM+128MB ROM Location LBSWIFI 4G Network LTE B1 B2 B3 B4 B5 B7 B8 B12 B17 B20 B28A SIM card Nano SIM card Calling 3 SOS + 10 phone number SOS Support G-sensor Support (in three axis) Remote monitoring Support Camera 30W MP pixels Waterproof level IP65 Battery Lithium battery 450mAh Dimension 230*40*15.5mm Accessories Magnetic Charge cable (Pogo pin),screen driver,user manual Other features 4G; Video call ; Two-way call; SOS ; 7 Games; Photo album; Camera ; Phone book ; Address book ; Message ; Device ; Micro Chat ; Step counting ; Alarm clock ; Study light ; Calculator ; Stopwatch ; 20 language options ; Screen brightness ; Sound adjustment;