Dofit Delta - Safety, Weather, and Battery; Important Safety Information; Battery Warnings and Handling

Model: DoFit Delta GPS Smartwatch (DoFit 2)
CPU : MT2502C ARM7 260MHz
Memory：RAM 64Mb +ROM 128 Mb
Capacitive touch screen: 1.3’’ 240*240 pixel
Bluetooth version: 4.0
Battery Capacity: Lithium-ion 3.7V/400mAh
Extra power bank: Lithium-ion 3.7V/400mAh
Working time: 48 hours(Open GPS 10-12 hours)
Standby time: 5-7 days
Charging time: 2.5 hours
DoFit Product specificaiton 12.