USED APPLE WATCH ULTRA2 49MM

key specification

Design & Durability

• Case Size: 49 mm
• Materials: Aerospace-grade titanium case, sapphire crystal front
• Dimensions: ~49 × 44 × 14.4 mm
• Weight: ~61.6 g (caseless)
• Water Resistance: WR100 (100 m) for recreational diving
• Certified to MIL‑STD‑810H military standards (shock, vibration, temperature, water)

Display

• Always‑On Retina LTPO OLED
• Size: 1.92 inch
• Resolution: 502 × 410 pixels (~395 ppi)
• Peak Brightness: Up to 3 000 nits
• Strengthened with sapphire crystal for scratch resistance

Performance & Storage

• Chipset: S9 SiP with dual-core CPU, quad-core GPU, 4-core Neural Engine
• Storage: 32 GB
• Connectivity Options: GPS‑only or GPS + Cellular (LTE)

Health & Sensors

• Heart Monitoring: Optical heart rate sensor (2nd gen) + Electrical Heart Sensor (ECG)
• Blood Oxygen (SpO₂) sensor
• Temperature sensor (wrist, temperature-aware cycle tracking)
• Motion sensors: High-G accelerometer, gyroscope, always-on altimeter, compass
• Additional sensors: Ambient light, dual-frequency GPS

Safety & Fitness Features

• Fall detection & Crash Detection
• Siren rated at 86 decibels for emergencies
• Covered in Dive and Oceanography apps; supports recreational diving
• Trackback feature to find your return route
• Extensive workout tracking: running, hiking, cycling, swimming, HIIT, etc.
• Improved Depth and Oceanic modes for scuba and freediving
• International emergency calling and satellite SOS

Battery & Charging

• Battery Life: Up to 36 hours in normal use; up to 72 hours in low‑power mode
• Charging: Fast-charge magnetic USB‑C puck (0–80% in ~45 mins)

Connectivity

• Bluetooth 5.3
• Wi‑Fi 802.11b/g/n (2.4/5 GHz)
• Ultra-Wideband (UWB) support
• NFC for Apple Pay
• GPS: Dual-frequency (L1 + L5), GLONASS, Galileo, QZSS, BeiDou

Software & Compatibility

• Operating System: watchOS 11 (updatable to latest)
• Compatible with iPhone 11 or later running iOS 17 or newer