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NETWORK Technology GSM / HSPA / LTE 2G bands GSM 900 / 1800 3G bands HSDPA 900 / 1900 / 2100 4G bands LTE band 1(2100), 3(1800), 7(2600), 8(900), 39(1900), 41(2500) Speed HSPA, LTE GPRS Yes EDGE Yes LAUNCH Introduced 2017, February Status Available. Introduced 2017, April BODY Measurements 48.9 x 45 x 12.6 mm (1.93 x 1.77 x 0.50 in) Bodyweight 57 g (2.01 oz) SIM Nano-SIM IP68 dust/water proof (up to 1.5m for 30 mins) Compatible with standard 20mm straps DISPLAY Type OLED capacitive touchscreen, 16M colors Size 1.2 inches, 9.2 cm2 (~42.0% screen-to-body ratio) Resolution 390 x 390 pixels, 1:1 ratio (~326 ppi density) Protection Corning Gorilla Glass (unspecified version) PLATFORM OS Android Wear OS 2.0, upgradable to 2.1 Chipset Qualcomm MSM8909W Snapdragon Wear 2100 C.P.U Quad-core 1.1 GHz Cortex-A7 GPU Adreno 304 MEMORY Card slot No Internal 4 GB, 768 MB RAM CAMERA No SOUND Loudspeaker Yes 3.5mm jack No COMMS WLAN Wi-Fi 802.11 b/g/n Bluetooth 4.1, LE, EDR GPS Yes, with A-GPS, GLONASS NFC Yes Radio No USB No FEATURES Sensors Accelerometer, gyro, heart rate, barometer, compass BATTERY Non-removable Li-Ion 420 mAh battery Charging Fast battery charging 10W |