Phone Call Smartwatch Men Gps 4g Smart Watch with Sim Card Slot

Phone Call Smartwatch Men Gps 4g Smart Watch with Sim Card Slot. Specification: product type. TL-900B. Target Region. 4g lte cat-1 bands. B1/B3/B5/B8. B34/B38/B39/B40/B41. B1/B3/B5/B7/B8/B20/B28. B2/B3/B4/B5/B7/B8/B28/ B66. 2g edge/gsm/gprs bands. B2/B3/B5/B8. Dimension: 70mm*40mm*15mm. Waterproof Level. GPS sensitivity. Cold star:-148dBm; Warm start:-163dBm; Hot start: -165dBm. GPS accuracy. GPS Start time. Cold start:36sec; Warm start:22sec; Hot start:1sec. LCD Resolution Ratio. Battery Capacity. 500mAH. SIM Card Type. Nano SIM. Firmware Upgrade Mode. FOTA/USB. Operation temperature. 20°C to +65°C. Humidity. Features: 3 G. Features: Touchscreen. Features: 4 G. Features: Gps. Features: Dustproof. Features: Cellular. Function: Answer Call. Function: Dial Call. Function: Voice Call. Function: SOS button. Colour: black Sliver. Battery: 600mAH.