SPECIFICATION

CHIPSET
Chipset: SL8521E

Memory: 512MB+4GB
4G/3G/2G full bands compatible

POSITIONING
GNSS: GPS
Location Services: GPS+AGPS+LBS+WIFI
Outdoor Accuracy: less than 5m (GPS)
Indoor Accuracy: 100-500m (LBS)20-50m(WiFi)
GPS Frequency: L1 1575.42MHz
GPS Sensitivity: -159dB
Speed Accuracy: 0.1m/s
Max Altitude: 18000m

CONNECTIVITY
4G-FDD: Band 1\2\3\5\7\8 4G-TDD: Band38\39\40\41(100M):3G-WCDMA: Band 1\2\5\82G-GSM: Band 2\3\5\8
4G-FDD： B1 B2 B3 B4 B5 B7 B8 B17 B20 B28A 3G-WCDMA： B1 B2 B5 B8 2G-GSM： B2 B3 B5 B8
GPS Singal: L1, 1575.42MHz C/A code

USER INERFACE
No screen
Buttons: 4 buttons ( Power & SOS Button/Phonebook Number 1 button/Phonebook number2 button/Voice chat button)
Nano sim card slot
Ring/Silent/Vibration

SIZE, WEIGHT, COLORS
Size: 65*42*40mm
Strap Material: Silicone
Weight: 72 grams
Colors: Black