Watch Ultra 3 49mm LTE (Refurbished)

Apple Watch Ultra 3 - Product Specifications

Product Features

• Ultra-bright 3,000-nit display for outstanding outdoor visibility in full sun.
• Titanium-grade durability with 100 m water resistance and IP6X dust protection.
• Advanced dual-frequency L1 & L5 GPS for industry-leading precision during running, hiking and outdoor adventures.
• Multi-day battery life, perfect for travel, endurance activities and extended expeditions.
• Ultimate adventure-ready design, with customisable Action button, built-in siren, and powerful safety features including Emergency SOS via satellite.

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Material & Finish

• Grade 5 Titanium case (Natural or Black)
• Flat sapphire crystal display
• 40% recycled content overall, including:
  • 100% recycled titanium (case)
  • 100% recycled cobalt & 95% lithium (battery)
  • 100% recycled rare earth elements (magnets)
  • 100% recycled gold plating & tin solder (PCBs)
  • 100% recycled tungsten (Taptic Engine)
  • 80% recycled steel (speaker & Taptic Engine)

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General

• Model: A3281

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Size & Weight

• Height: 49 mm
• Width: 44 mm
• Depth: 12 mm
• Weight:
  • Natural: 61.6 g
  • Black: 61.8 g
• Wrist Fit: 130-210 mm

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Display

• Always-On Retina display with wide-angle OLED and LTPO (1 Hz)
• 422 × 514 pixels (326 ppi)
• 1,245 sq mm active area
• Up to 3,000 nits peak brightness
• 1 nit minimum brightness
• Night Mode on Modular Ultra, Wayfinder and Orienteering faces

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Buttons & Controls

• Digital Crown with haptic feedback
• Customisable Action button
• Side button
• Double tap & wrist-flick gestures
• Siri with on-device processing

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Chip & Performance

• S10 SiP with 64-bit dual-core CPU
• 4-core Neural Engine
• 64 GB capacity

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Sensors

• Electrical heart sensor
• Third-generation optical heart sensor
• Blood oxygen sensor
• Wrist temperature sensor
• Depth gauge
• Water temperature sensor
• Compass
• Always-on altimeter
• High-g accelerometer
• High-dynamic-range gyroscope
• Ambient light sensor

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Health & Wellness

• Blood Oxygen app
• ECG app
• Cycle Tracking with retrospective ovulation estimates
• Heart Rate app
• High & low heart-rate notifications
• Irregular rhythm notifications
• Medications app
• Mindfulness app
• Noise app
• Sleep stages & sleep score
• Sleep apnoea notifications
• Hypertension notifications

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Audio

• Three-microphone array with beamforming & wind noise reduction
• Dual speakers
• Siren
• Media playback

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Power & Battery

• Fast-charging capable
  • 0-80% in ~45 minutes
  • 15 minutes - up to 12 hrs normal use
  • 5 minutes - up to 8 hrs sleep tracking

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Durability

• Water resistance: 100 m (ISO 22810:2010)
  • Recreational scuba diving to 40 m (EN13319)
• Dust resistance: IP6X
• Tested to MIL-STD 810H: altitude, temperature extremes, shock, vibration, immersion, freezing rain and more

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Connectivity

• Wi-Fi 4 (802.11n), 2.4 & 5 GHz
• Bluetooth 5.3
• L1 & L5 dual-frequency GPS (GPS, GLONASS, Galileo, QZSS, BeiDou)
• 2nd-gen Ultra Wideband
• Apple Pay & GymKit
• Mobile (Model A3281):
  • 5G (RedCap)
  • 4G LTE (full band list per Apple spec page)

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Safety Features

• Emergency SOS (including via satellite)
• Find My via satellite
• Crash Detection
• Fall Detection
• Siren
• Torch
• Backtrack
• Waypoint features

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Workouts & Activity

• Running: Customised workouts, Training Load, Precision Start, advanced metrics
• Hiking: Waypoints, Backtrack, offline maps, elevation alerts
• Cycling: Power meter support, FTP, Live Activity integration
• Swimming: Pool/open-water modes, SWOLF, stroke detection
• Diving: Recreational diving to 40 m, automatic dive launch
• Wide range of additional workouts: skiing, snowboarding, rowing, paddling, yoga, HIIT, wheelchair workouts and more

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Operating System

• watchOS (current version for device launch)

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Environmental Requirements

• On-wrist: -20°C to 55°C
• Operating: 0°C to 35°C
• Dive: 0°C to 40°C
• Storage: -20°C to 45°C
• Humidity: 5-90% non-condensing
• Altitude: -500 m to 9,000 m

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Compatibility

• iPhone 11 or later (including iPhone SE 2nd gen+), running iOS 26 or later