Meet the Samsung Galaxy Watch5 40mm LTE (Silver) It comes with an innovative 3-in-1 BioActive Sensor designed to accurately monitor and help improve your health, a durable Aluminium finish and a stylish design built for the grind with 60% stronger Sapphire Crystal Glass. Key Features of the Samsung Galaxy Watch5 40mm LTE (Silver) Monitor your health around the clock even at night. Achieve your wellness goal by measuring body composition with Samsung BioActive sensor. Provided with 13% bigger battery for everyday usage. Counts your sheep for you Know your sleep with our improved sleep tracking technology. Plan your bedtime, detect snoring, understand and track your sleep stages (awake, light, deep, REM) via 8 animal sleep symbols representing your sleep type. Better nights lead to better days. Samsung BioActive sensor The powerful 3-in-1 Samsung BioActive sensor controls three health sensors effectively: Bioelectrical Impedance Analysis sensor, Electrical Heart sensor (ECG), and Optical Heart Rate sensor. 6 Every step counts Working out? Your watch counts your steps, calories, and even your routines. It even supports over 90 exercises that you can track from your watch.