Body:

• Dimensions: 42 × 36 × 9.7 mm (1.65 × 1.42 × 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 × 374 pixels (~330 ppi density)
• Protection: Ion-X strengthened glass (2025 gen)
• Additional Feature: Wide-angle OLED

Platform:

• OS: watchOS 26, upgradable to watchOS 26.2
• Chipset: Apple S10
• CPU: Dual-core
• GPU: PowerVR

Memory:

• Card Slot: No
• Internal Storage: 64GB

Sound:

• Loudspeaker: Yes
• 3.5mm jack: No

Comms:

• 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

Features:

• Sensors: Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body), temperature (water)
• Temperature Sensing: 0.01˚ accuracy
• Ultra Wideband (UWB): Gen2 chip
• Media Playback: Yes

Battery:

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