Body

• Dimensions: 42 x 36 x 9.7 mm (1.65 x 1.42 x 0.38 in)
• Weight: 30.3 g (1.06 oz)
• Build:
  
  • Glass front
  • Ceramic/Sapphire crystal back
  • Aluminum frame
• SIM: No
• Certifications:
• IP6X certified
• 50m water resistant
• ECG certified (region-dependent software application; hardware available on all models)
• Depth gauge to 6m

Display

• Type: Retina LTPO3 OLED, 2000 nits (peak)
• Size: 1.77 inches
• Resolution: 446 x 374 pixels (~330 ppi density)
• Protection: Ion-X strengthened glass (2025 gen)
• Other Features: Wide-angle OLED

Platform

• OS: watchOS 26
• Chipset: Apple S10
• CPU: Dual-core
• GPU: PowerVR

Memory

• Card Slot: No
• Internal Storage: 64GB

Sound

• Loudspeaker: Yes
• 3.5mm Jack: No

Communications

• WLAN: Wi-Fi 802.11 b/g/n, dual-band
• Bluetooth: 5.3, A2DP, LE
• Positioning: GPS, GLONASS, GALILEO, QZSS, BDS
• NFC: Yes
• Radio: No
• USB: No

Sensors:

• Accelerometer
• Gyro
• Heart Rate
• Barometer
• Always-on Altimeter
• Compass
• SpO2
• VO2max
• Temperature (body)
• Temperature (water)
• Temperature sensing (0.01˚ accuracy)

Other Features:

• Ultra Wideband (UWB) support (gen2 chip)
• Media playback

Battery

• Type: Li-Ion
• Charging: Wireless, 0-80% in 30 min