1 Microphone
2 Speaker
3 Customisable Action button
4 Siren/Speaker
5 Antennas (GPS, cellular, satellite)
6 Microphone
7 Side button
8 Microphone
9 Digital Crown
10 Depth gauge/water temperature sensor/altimeter

Customisable Action button
Digital Crown with haptic feedback
Side button
Double tap and wrist flick gestures
Siri with on‑device processing

S10 chip with 64‑bit dual‑core processor
4-core Neural Engine
64GB capacity

Electrical heart sensor
Third-generation optical heart sensor
Blood oxygen sensor¹
Temperature sensor²
Depth gauge
Water temperature sensor
Compass
Always-on altimeter
High-g accelerometer
High dynamic range gyroscope
Ambient light sensor
¹ The Blood Oxygen app is for wellness purposes only and not for medical use.
² The temperature sensing feature is not intended for medical use. Temperature sensing is available only on Apple Watch Series 8 and later, Apple Watch SE 3 and all Apple Watch Ultra models.

Blood Oxygen app¹
ECG app³
Cycle Tracking app with retrospective ovulation estimates⁴
Heart Rate app
High and low heart rate notifications
Irregular rhythm notifications⁵
Medications app
Mindfulness app with state of mind tracking
Noise app
Sleep app including sleep stages
Sleep score
Sleep apnoea notifications⁶
Hypertension notifications⁷
¹ The Blood Oxygen app is for wellness purposes only and not for medical use.
³ The ECG app is available on Apple Watch Series 4 and later (excluding Apple Watch SE models) and can generate an ECG similar to a single-lead electrocardiogram. Intended for use by people 22 years old and over.
⁴ The Cycle Tracking app should not be used for birth control or to diagnose a health condition.
⁵ Irregular rhythm notification requires the latest version of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AF).
⁶ Sleep apnoea notifications are available on Apple Watch Series 9 and later, Ultra 2 and later, and SE 3. The feature is intended to detect signs of moderate to severe sleep apnoea for people 18 years old or older without a diagnosis of sleep apnoea.
⁷ As of 9 September 2025, hypertension notifications are pending regulatory review and expected to be cleared this month, with availability on Apple Watch Series 9 and later and Apple Watch Ultra 2 and later. The feature is not intended for use by people under 22 years old, those who have been previously diagnosed with hypertension, or pregnant persons.

Always‑On Retina display with wide‑angle OLEDs and LTPO3
1Hz refresh
Active area (422×514 pixels, 326 pixels per inch)
Flat sapphire crystal display
Up to 3,000 nits peak brightness
1 nit minimum brightness
Night Mode for Apple Watch Ultra faces (Modular Ultra, Wayfinder, Orienteering)

Three-microphone array with beamforming and wind noise mitigation
Dual speakers
Media playback
Siren

Multi‑day battery life, up to 42 hours of normal use⁸
Up to 72 hours in Low Power Mode⁸
Built-in rechargeable lithium‑ion battery
Fast-charge capable⁹
Up to 80% charge in about 45 minutes⁹
15 minutes for up to 12 hours of normal use¹⁰
5 minutes for up to 8 hours of sleep tracking¹⁰