Positioning running sports watches

Positioning: GPS + GL ONASS
NFC: NFC city bus subway, door] card ban simulation
Connection: BT5.0 BL .E
Battery: Amazfit GTR 47mm
410mAhLiPo
Amazfit GTR 42mm
195mAh L iPo
charging method
Magnetic charging stand, 2Pin Pogo Pin charging
Theoretical charging time
About 2 hours