Galaxy Watch 4 40mm Rose Gold, Bluetooth, Wi-Fi, Bluetooth v5.0, Super AMOLED, 1.2″ (30.4mm), Dual-Core 1.18GHz, RAM (GB)1.5, ROM (GB)16 , Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical heart sensor, Bioelectrical Impedance Analysis Sensor. Dimensiones 40.4 x 39.3 x 9.8 mm, Peso 25.9 g.