The Apple Watch SE 2nd generation features a 40mm aluminum case in the starlight finish with a matching starlight sport band in S/M size. This GPS model includes essential health and fitness features at an accessible price point. The watch is powered by Apple's S8 SiP chip with a 64-bit dual-core processor and includes a second-generation optical heart sensor for continuous heart rate monitoring.

Health and wellness features include high and low heart rate notifications, irregular rhythm notifications, sleep tracking with sleep stages, and the Medications app for managing prescriptions. The Retina LTPO OLED display with ion-X front glass provides up to 1000 nits maximum brightness and 326 pixels per inch resolution. The 40mm case weighs just 26.4 grams and fits wrists from 130 to 200mm.

Fitness tracking capabilities include comprehensive workout support with custom workouts, training load, heart rate zones, and detailed metrics for running, cycling, swimming, hiking, and over 20 other workout types. The watch features built-in GPS, GNSS, Galileo, and QZSS for accurate outdoor activity tracking. Advanced running features include stride length, ground contact time, vertical oscillation, and automatic track detection.

Safety features include Emergency SOS, international emergency calling, Crash Detection, and Fall Detection. The watch is swim-proof with 50 meters of water resistance under ISO standard 22810:2010. Connectivity includes Wi-Fi 4 (802.11n), Bluetooth 5.3, and Apple Pay for contactless payments. All-day battery life provides up to 18 hours of normal use, with fast charging reaching 80% in about 1.5 hours using the included Apple Watch Magnetic Charger to USB-C Cable.

The Digital Crown provides haptic feedback for intuitive navigation, and the always-on altimeter, compass, high-g accelerometer, high dynamic range gyroscope, and ambient light sensor enable advanced features. The watch runs watchOS and requires iPhone Xs or later with iOS 18 or later. The device features 100% recycled aluminum in the case and is part of Apple's environmental commitment with 30% recycled or renewable content.