Released: 2025 model year

Operating system: watchOS 26

Storage: 64 GB internal

Chip: S10 dual-core with 4-core Neural Engine

Materials: Aluminum or Titanium cases

Recycled content in materials (e.g., aluminum, titanium, battery)

Sizes: 42 mm and 46 mm

Case thickness: 9.7 mm

Water resistance: 50 m (5 ATM)

Dust resistance: IP6X

Always-On Retina display (LTPO OLED)

Peak brightness up to 2 000 nits

Scratch-resistant Ion-X glass (aluminum) / Sapphire (titanium)

42 mm: 374 × 446 px (~989 mm²)

46 mm: 416 × 496 px (~1 220 mm²)

Battery life: Up to 24 hours (typical use)

Low Power Mode: Up to 38 hours

Fast charging: ~80 % in ~30 minutes; 15 min charge for ~8 hours use

5G support (cellular models)

Wi-Fi 2.4 GHz and 5 GHz (802.11n)

Bluetooth 5.3

eSIM (cellular models)

Ultra Wideband (UWB) chip

Electrical heart sensor (ECG)

Third-generation optical heart sensor

Blood oxygen (SpO₂) sensor

Temperature sensor

Compass, altimeter (always-on)

High-g accelerometer & gyroscope

Ambient light sensor

Depth gauge & water temperature sensor

Heart rate monitoring, high/low HR alerts

ECG app

Blood Oxygen app

Sleep tracking with Sleep Score

Hypertension notifications

Noise, mindfulness, medications tracking

Digital Crown with haptic feedback

Side button

Double-tap and wrist-flick gesture controls

Siri with on-device processing

Speaker and microphone

Apple Pay support