HUAWEI Watch GT 2 Elegant (42 mm) Smartwatch 3.05 cm (1.2\") AMOLED display Internal memory: 4 GB RAM: 16 MB Connection via Bluetooth Fitness features: heart rate measurement, pedometer, training data acquisition, sleep monitoring, swim training function, activity recognition Smart Notifications acceleration sensor, gyro sensor, barometer, electronic compass, automatic room light adjustment GPS, GLONASS Max. Operating time: up to 7 days