Description
- Performance & Design: Powered by the S10 SiP (System in Package), which enables faster on-device Siri, 5G connectivity, and superior power efficiency. It comes in 40mm and 44mm aluminum cases made from 100% recycled materials.
- Always-On Display: A key upgrade, featuring a bright Always-On OLED Retina display (up to 1000 nits) allowing users to see time and notifications without lifting their wrist.
- Advanced Health Monitoring: Includes a heart rate app, Irregular Rhythm Notifications, Sleep Tracking with Sleep Stages, and newly added Sleep Apnea Notifications. It also features wrist temperature sensing for richer Vitals app data and retrospective ovulation estimates.
- Fitness & Motivation: Features a customizable Activity app (Move, Exercise, Stand) and a “Workout Buddy” feature powered by Apple Intelligence, providing tailored motivational feedback. It is swim-suitable (WR50).
- Safety & Connectivity: Includes Crash Detection, Fall Detection, Emergency SOS, and International Emergency Calling. The Cellular model supports 5G, allowing for independent calls, messages, and streaming.
- Improved Battery & Charging: Delivers all-day 18-hour battery life, with fast-charging capabilities that charge up to 80% in about 45 minutes.
- Accessibility: Offers a wide range of accessibility features, including AssistiveTouch and gestures like double tap and wrist flick to control the watch with one hand.
Key Differences from Higher-End Models (Series 11/Ultra)
While it shares the S10 chip, the SE 3 lacks the ECG app, the Blood Oxygen app, and the ultra-narrow bezel design of the Series 11/10.
Environmental & Design
- Sustainability: Made with 40% recycled content by weight, including 100% recycled aluminum in the case and 100% recycled cobalt in the battery.
- Durability: The Ion-X cover glass is designed to be 4x more resistant to cracks than previous generations.






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