This smart watch is a full screen T55 watch with crown working plus model- 44mm watch series 6 bluetooth smart watch
Motherboard model:LH728-V1.1
CPU:HS6620+BK3259B
Flash:512KB+32M GPS/A
GPS:NO
G-sensor:YES
M-sensor:YES
Wifi:NO
SIM:NO
BT:4.2+5.0 Dual-mode Bluetooth
antenna:Hs6620 + bk3259b all need welding wire
LCD:1.54 TP:cob capacitance multi touch
Heart rate sensor:YES
Motor:YES USB:NO
Charging mode:2pin thimble charging
Microphone:YES
Side key:2 Power
amplifier:YES
Battery capacity:160mah