8.9 mm - 40.6 mm - Temperature Sensor, Heart Rate Monitor, Pulse Oximeter Sensor, Pedometer - Timer, Clock Display, Sleep Monitor, Camera - Body Temperature, Heart Rate, Steps Taken, Calories Burned, Distance Traveled, Sleep Quality - 128 MB Standard Memory - 1.4" - LCD - Touchscreen - Bluetooth - 360 Hour - Black - Silicon Band Material - Smartphone, Sports, Walking, Running, Riding - Water Proof - IP68