Apple Watch SE 3 provides essential Apple Watch features in a more affordable model. It includes an Always-On Retina display, S10 chip, sleep tracking, heart-rate notifications, low-cardio-fitness notifications, workout tracking, fall and crash detection, GPS, and fast charging. Battery life is rated up to 24 hours, or up to 38 hours in Low Power Mode. Available in 40mm and 44mm aluminium cases with Midnight and Starlight finishes, it connects with compatible iPhones for calls, messages, notifications, fitness, and everyday smart functions.