Apple Watch SE 3 (44mm GPS + Cellular)

Apple Watch SE 3 (GPS + Cellular, 44mm) is a feature-rich smartwatch designed for iPhone users. Platform: watchOS (iPhone only). Key sensors: heart rate monitor, blood oxygen (SpO2), sleep tracking, fall detection, emergency SOS. GPS: built-in for workouts and route tracking. Display: Retina LTPO OLED, always-on capable. Battery life: ~18 hours typical, ~36 hours in Low Power Mode. Water resistance: 50m (swim-proof). Connectivity: dual GPS + Cellular LTE (pairs with iPhone via Bluetooth). Build: aluminum case, sport band. Best for: iPhone owners wanting seamless health integration, fitness tracking, and messaging without carrying a phone. A solid middle-ground between the base SE2 and pricier Series models.