Apple Watch Series 12
Quick details
Released
September 2026
Dimensions
Aluminum/titanium: 46 x 40 x 9.7 mm or 42 x 37 x 9.7 mm; ceramic: 47 x 41 x 9.85 mm or 43 x 37 x 9.85 mm
Operating system
watchOS 27
Display 42 mm or 46 mm case; Always-On Retina LTPO3 wide-angle OLED; up to 2,000 nits
Battery life Up to 24 hours; up to 38 hours in Low Power Mode; up to 10 hours outdoor workout
Water resistance 5 ATM; IP6X; depth gauge to 6 m
GPS Yes
Sensors Health Sensing System with 3rd-generation electrical heart sensor, always-on optical heart sensor, Blood Oxygen, temperature, compass, altimeter, accelerometer, gyroscope, ambient light, depth and water temperature
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Technical specifications
General
Release date 2026-09-18
Product type Smartwatch
Physical size Aluminum/titanium: 46 x 40 x 9.7 mm or 42 x 37 x 9.7 mm; ceramic: 47 x 41 x 9.85 mm or 43 x 37 x 9.85 mm
Weight 46 mm: 39.5 g (aluminum GPS), 38.6 g (aluminum GPS + Cellular), 44.9 g (titanium), 51.3 g (Pearl White ceramic), 52.9 g (Night Blue ceramic); 42 mm: 32.2 g, 31.5 g, 36.5 g, 41.7 g and 42.8 g respectively
Material Aluminum, titanium or ceramic case, 60% tougher than Series 11
Water resistance 5 ATM; IP6X; depth gauge to 6 m
Color options Aluminum: Dark Bronze, Light Gold, Black, Space Gray; Titanium: Radiant Gold, Natural; Ceramic: Pearl White, Night Blue
Display type Always-On Retina LTPO3 wide-angle OLED
Display size 42 mm or 46 mm case (ceramic cases are 43 mm or 47 mm tall)
Display resolution 42 mm: 374 x 446 pixels; 46 mm: 416 x 496 pixels
Display brightness Up to 2,000 nits
Display protection Ceramic Shield 2 on aluminum cases; sapphire front crystal on titanium and ceramic cases
Battery Rechargeable lithium-ion battery
Battery life Up to 24 hours; up to 38 hours in Low Power Mode
Charging USB-C magnetic fast charging; up to 80% in about 30 minutes; 15 minute charge for 2 hours of use
Sensors
GNSS type Built-in GNSS
GPS Yes
GALILEO Yes
GLONASS Yes
QZSS Yes
Beidou Yes
Accelerometer Yes
Gyroscope Yes
Barometric altimeter Yes
Compass Yes
Ambient light sensor Yes
Optical heart rate Yes (always-on optical heart sensor; high-frequency background tracking)
Electrical heart rate Yes
SpO2 Yes
Temperature Yes
Galvanic skin response No
Microphone Yes
Speakers Yes
Vibration motor Yes
Health & activity tracking
Steps Yes
Distance Yes
Calories burned Yes
Floors Yes
Sports tracking Yes
Sleep Yes
Heart rate Yes
HRV Yes (Up to 24x more frequent than Series 11)
Stress No
Blood oxygen Yes
Respiration rate Yes
Skin temperature Yes
ECG Yes
Blood pressure Hypertension notifications (no direct blood-pressure measurement)
Body composition No
Glucose No
Hydration level No
UV exposure No
Calorie intake No
Hyperglycemia risk assessment No
Arterial stiffness detection No
Pulse wave arrhythmia analysis Yes
Readiness Yes
Daily smart features
Smartphone compatibility iPhone 11 or later or iPhone SE (2nd generation or later) with iOS 27 or later
Operating system at launch watchOS 27
Processor Apple S11, 64-bit dual-core processor; 4-core Neural Engine; Audio Intelligence
Storage 64 GB
Bluetooth Yes (5.3)
Wi-Fi Yes (Wi-Fi 4 / 802.11n, 2.4/5 GHz)
NFC / connected pay Yes (Apple Pay)
UWB Yes (2nd-generation UWB)
Cellular Optional (5G RedCap and LTE on supported regional models)
Smartphone notifications Yes
Bluetooth calling Yes (standalone on cellular models; via paired iPhone otherwise)
Smartphone music control Yes
On-board music storage Yes
Voice assistant Siri AI powered by Apple Intelligence
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These technical specs are correct to the best of our knowledge at the time of publishing.
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