Apple Watch Series 12 Technical Specifications
Material and Finish
Aluminium case
Dark Bronze, Light Gold, Black, Space Grey
Titanium case
Radiant Gold, Natural
Ceramic case
Pearl White, Night Blue
Size and Weight
- Height (aluminium, titanium): 46mm
- Height (ceramic): 47mm
- Width (aluminium, titanium): 40mm
- Width (ceramic): 41mm
- Depth (aluminium, titanium): 9.7mm
- Depth (ceramic): 9.85mm
- 416x496 pixels
- 1,196mm² display area
- Weight (aluminium, GPS): 39.5g
- Weight (aluminium, GPS + Cellular): 38.6g
- Weight (titanium): 44.9g
- Weight (Pearl White ceramic): 51.3g
- Weight (Night Blue ceramic): 52.9g
- Fits 140–245mm wrists
- Height (aluminium, titanium): 42mm
- Height (ceramic): 43mm
- Width: 37mm
- Depth (aluminium, titanium): 9.7mm
- Depth (ceramic): 9.85mm
- 374x446 pixels
- 970mm² display area
- Weight (aluminium, GPS): 32.2g
- Weight (aluminium, GPS + Cellular): 31.5g
- Weight (titanium): 36.5g
- Weight (Pearl White ceramic): 41.7g
- Weight (Night Blue ceramic): 42.8g
- Fits 130–200mm wrists
Hardware and Buttons
Controls
- Digital Crown with haptic feedback
- Side button
- Single tap, double tap and wrist flick gestures
- Siri powered by Apple Intelligence1
Chip
- S11 chip with 64‑bit dual‑core processor
- 4‑core Neural Engine
- 64GB capacity
Apple Intelligence and Siri AI1
The next generation of Apple Intelligence is centred around you, integrated into your apps and built with privacy. Apple Intelligence powers Siri AI — an entirely new version of Siri that’s more personal, conversational and powerful, along with helpful features across apps.
Health and Wellness
- Readiness app
- Vitals app with heart rate, respiratory rate, wrist temperature, blood oxygen and heart rate variability (HRV)4
- Blood Oxygen app2
- ECG app5
- Heart Rate app
- High and low heart rate notifications
- Recovery HRV
- High‑frequency background heart rate tracking
- Irregular rhythm notifications6
- Advanced Cycle Tracking app with fertile window estimates, retrospective ovulation estimates and perimenopause and menopause support7
- Medications app8
- Mindfulness app with state of mind tracking
- Noise app
- Sleep app including sleep stages
- Sleep score
- Sleep apnoea notifications9
Display
- Always‑On Retina display with wide‑angle OLEDs and LTPO3
- 1Hz refresh
- Active area (42mm): 374x446 pixels, 326 pixels per inch
- Active area (46mm): 416x496 pixels, 326 pixels per inch
- Ceramic Shield 2 (aluminium cases)
- Sapphire front crystal (titanium and ceramic cases)
- 2,000 nits peak brightness
- 1 nit minimum brightness
Audio
- Speaker
- Microphone
- Media playback
Power and Battery Life
- All‑day battery life, up to 24 hours of normal use10
- Up to 38 hours in Low Power Mode10
- Up to 10 hours outdoor workout11
- Built‑in rechargeable lithium‑ion battery
- Fast‑charge capable12
- Up to 80% charge in about 30 minutes12
- 15 minutes for up to 12 hours of normal use13
- 5 minutes for up to 10 hours of sleep tracking13
Workouts and Activity
- Custom workouts
- Customisable Workout Views
- Training Load
- Heart Rate Zones (customisable)
- Post-workout heart rate
- VO2 max
- Race Route
- Pacer
- Cadence, Stride Length, Ground Contact Time, Vertical Oscillation and Running Power
- Multisport workout
- Heart Rate Zone, pace and target alerts
- Compass with bearing, incline, elevation and coordinates
- Custom waypoints
- Automatically generated waypoints to mobile connectivity
- Backtrack GPS data
- Offline maps with custom route creation14
- Topographic maps for thousands of national and regional parks (US only)
- Hundreds of curated hikes across all 63 US national parks
- Average speed, elevation gained and distance
- Connection to cycling accessories via Bluetooth
- Functional Threshold Power
- Power Zones
- Cadence
- Live Activity on iPhone
- Pool swim or open water swim
- Custom workouts for pool swims
- Splits and auto sets
- SWOLF score
- Automatic stroke detection
- Kickboard detection
- Average pace, total distance and laps
More Workouts
Connectivity
- Models A3582 and A3587
- Supports RedCap for LTE21
- FDD‑LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71)
- TDD‑LTE (Bands 38, 39, 40, 41)
Accessibility
Built‑in accessibility features supporting vision, mobility, hearing and cognitive disabilities.
- VoiceOver
- Zoom
- On/Off Labels
- Reduce Transparency
- Increase Contrast
- Colour Filters
- Text Size
- Bold Text
- Reduce Motion
- Hourly Chimes
- AssistiveTouch
- Button Click Speed
- Touch Accommodations
- Auto‑Answer Calls
- Type to Siri
- Audio Volume Balance
- Auto Transcription
- Live Speech
- Accessibility Shortcut
- Mono Audio
- Taptic Time
- Personal Voice
- Live Listen
- Sound Recognition
Environmental Requirements
Operating temperature:
0° to 35° C
Non-operating storage temperature:
–20° to 45° C
Relative humidity:
5% to 90% non-condensing
Operating altitude:
0m to 3,000m
