Build & Materials

• Case materials:

  • Aluminum (various finishes: Jet Black, Silver, Rose Gold, Space Grey)

  • Titanium (Gold, Natural, Slate)

• Glass & display cover:

  • Aluminum models use Ion‑X glass with enhanced scratch resistance (approximately 2× harder than previous generation)

  • Titanium models retain sapphire crystal on front

• Dimensions & Weight:

  • 46 mm version: 46 × 39 × 9.7 mm

    • Weight (Aluminum, GPS): ~37.8 g

    • Weight (Aluminum, GPS + Cellular): ~36.9 g

    • Weight (Titanium): ~43.1 g

    • Fits wrists: 140‑245 mm

  • 42 mm version: 42 × 36 × 9.7 mm

    • Weight (Aluminum, GPS): ~30.3 g

    • Weight (Aluminum, GPS + Cellular): ~29.7 g

    • Weight (Titanium): ~34.6 g

    • Fits wrists: 130‑200 mm

Display

• Type: Always‑On LTPO OLED Retina display

• Pixel dimensions:

  • 46 mm: 416 × 496

  • 42 mm: 374 × 446

• Display area:

  • 46 mm: ~1,220 sq mm

  • 42 mm: ~989 sq mm

• Brightness / Peak:

  • Typical use: handled with standard brightness

  • Peak brightness: up to 2,000 nits

  • Minimum brightness: 1 nit

• Pixel density: ~326 ppi

Hardware & Performance

• Chip: S10 SiP

  • Dual‑core 64‑bit CPU

  • 4‑core Neural Engine

• Storage: 64 GB onboard

• Controls:

  • Digital Crown (with haptic feedback)

  • Side button

  • Gestural controls: double-tap, wrist flick

  • Siri: processable on-device

Sensors & Health Monitoring

• Electrical heart sensor (for ECG)

• 3rd-generation optical heart sensor

• Blood Oxygen (SpO₂) sensor

• Temperature sensor

• Compass

• Always-on altimeter

• High-g accelerometer

• High dynamic range gyroscope

• Ambient light sensor

• Depth gauge (up to 6 meters)

• Water temperature sensor

Battery & Charging

• Battery life (normal use): up to 24 hours

• Low Power Mode: up to 38 hours

• Fast charging:

  • ~80% in ~30 minutes

  • ~8 hours of use from ~15 minutes of charging

  • 5 minutes charging grants hours of sleep tracking capability

Connectivity

• Cellular: supports 5G (for GPS + Cellular models)

• GPS / location: standard multi-band support

• Bluetooth: latest supported version

• Wi-Fi: dual-band support (2.4 GHz & 5 GHz)

• NFC: for Apple Pay, and compatible services

 Water & Durability

• Water resistance: 50 meters (5 ATM)

• P6X / dust resistance rating

• Depth gauge sensor for underwater usage

• Enhanced durability for scratch / impact

Features & Software

• Operating System: watchOS 26

• New / emphasized features:

  • Hypertension alerts (detecting elevated blood pressure trends)

  • Sleep Score (quality / stages / metrics)

  • Liquid Glass UI design & refreshed watch faces

  • Workout Buddy: personalized workout insights via intelligence

  • Gesture controls (wrist flick, double-tap)

  • On-device Siri, contextual volume adjustment, smarter notifications

• Backward compatibility of many features for earlier models (subject to hardware)