Watch GPS WIFI Position Phone Call Bracelet waterproof Outdoor Anti-lost 

1 main functions: waterproof,real-time GPS positioning, SOS, remote monitoring, call family number, pedometer, electronic fence warning remind, history inquiry, alarm clock function.
2 main chip: MT6260D
3 memory Flash Memory: 32M
4 RF amplifier: RDA6625
5 dimensions: 41mm diameter, thickness 15.5 mm
6 working environment temperature: -20 - +70
7 working environment humidity: 20%-80%RH
8 SIM Card: mini card
9 band:GSM/GPRS/EDGE (support MHz 900/1800)
10 voltage range: charge 5V battery 450Mah 3.7V
Standby current is less than 10mA
11 I/O interface: 5pin Micro
12 speaker:1206 AAC 13 MIC:4015 specifications lead type
14 sensor: G-Sensor 3D
15 UBLOX GPS GPS positioning accuracy:10M
16 GPS positioning time: cold start -38s (sky Open) -2s (Open) hot start (SKY), the specific time of the environment will be affected by the difference
17 shell material: PC injection molding, spraying
18 GSM antenna: PIFA antenna
19 GPS antenna: high performance ceramic antenna