The Apple Watch Series 12 is a smartwatch for tracking health and activity. It has an aluminum case with Ceramic Shield 2 and a 42 mm size. It comes with a black Sport Band in size M/L. The OLED touchscreen measures 374 x 446 pixels.
The S11 chip and improved optical and electrical sensors record heart rate at shorter intervals. The watch checks heart rate variability (HRV) every five minutes and logs heart rate in the background every five seconds. The Vitals app shows overnight health data, and the watch can measure blood oxygen saturation. A Readiness score is calculated each morning from recent activity, vital signs and sleep, then adjusts through the day.
For workouts, it offers advanced metrics, Pace Target, Heart Rate Zones and Workout Buddy, which uses Apple Intelligence on your iPhone. Apps such as Cycle Tracking and ECG add further health information. Fall detection and crash detection can call emergency services, share your location and alert your chosen contacts. The GPS model works with your iPhone or a Wi-Fi network for messages, calls, music, Siri and notifications.
- Model
- MJEC4ZR/A
- Case
- Aluminum, 42 mm, with Ceramic Shield 2
- Color
- Black
- Band
- Black Sport Band, M/L
- Display
- OLED touchscreen, 374 x 446 pixels
- Chip
- S11
- Connectivity
- Wi-Fi, GPS (satellite)
- Battery
- Up to 24 hours of normal use; 15 minutes of fast charging gives up to 12 hours
- Heart tracking
- HRV every five minutes; background heart rate every five seconds; ECG app
- Health features
- Blood oxygen, Vitals app, Cycle Tracking, Readiness score, sleep quality
- Fitness features
- Pace Target, Heart Rate Zones, Workout Buddy, advanced workout metrics, pedometer
- Safety
- Fall detection, crash detection, Emergency SOS
- Smart features
- Messages, calls, music streaming, Siri, notifications