Apple Watch Ultra 3 (2025) GPS + Cellular 5G 49mm Black Titanium Case with Black/Charcoal Trail Loop S/M EU MF1D4

Network: GSM / HSPA / LTE / 5G

Body

• Dimensions: 49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in)
• Weight: 61.6 g or 61.8 g (black) (2.15 oz)
• Build:
  
  • Sapphire crystal front
  • Ceramic/Sapphire crystal back
  • Titanium frame (grade 5)
• SIM: eSIM
• Certifications:
• IP6X certified
• 100m water resistant (22810:2010)
• 40m swimproof/diving (EN13319)
• MIL-STD-810H compliant
• ECG certified (region-dependent software application; hardware available on all models)

Display

• Type: Retina LTPO3 OLED, 3000 nits (peak)
• Size: 1.98 inches
• Resolution: 514 x 422 pixels (~326 ppi density)
• Protection: Sapphire crystal glass
• 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, with dual speakers (86-decibel)
• 3.5mm Jack: No

Communications

• WLAN: Wi-Fi 802.11 b/g/n, dual-band
• Bluetooth: 5.3, A2DP, LE
• Positioning: GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
• NFC: Yes
• Radio: No
• USB: No

Sensors:

• Accelerometer
• Gyro
• Heart Rate
• Barometer
• Always-on Altimeter (-500m to 9000m)
• Compass
• SpO2
• VO2max
• Temperature (body)
• Temperature (water)
• Temperature sensing (0.01˚ accuracy)
• Depth gauge (±1m accuracy)

Other Features:

• Ultra Wideband (UWB) support (gen2 chip)
• Emergency SOS via satellite

Battery

• Type: Li-Ion
• Charging: Wireless, 0-80% in 45 min