Watch Ultra 2 GPS + Cellular 49mm Titanium with Green/Gray Trail Loop S/M Features: L1 and L5 GPS, GLONASS, Galileo, QZSS, and BeiDou Compass Always-on altimeter with expanded operating range from -500m to 9000m Water resistant (100 meters) Certified IP6X dust resistant Tested to MIL-STD 810H Blood oxygen sensor (Blood Oxygen app) Electrical heart sensor (ECG app) Third-generation optical heart sensor International emergency calling Emergency SOS International roaming High-g accelerometer (Up to 256 g-forces with Fall Detection and Crash Detection) High dynamic range gyroscope Double tap gesture On-device Siri Ambient light sensor Water temperature sensor Depth gauge and Depth app Dive ready to 40m / 130 ft. EN13319 certification Oceanic+ app for use as a dive computer (available on the App Store) Dual speakers Siren Three-microphone array with beamforming and wind noise mitigation Apple Pay GymKit Capacity 64GB Ceramic and sapphire crystal back Specifications: Finishes Titanium Display 49mm 410 by 502 pixels 1185 sq mm display area Always-On Retina LTPO OLED display Up to 3000 nits brightness 1 nit minimum brightness Chip S9 SiP with 64-bit dual-core processor W3 (Apple wireless chip) Second-generation Ultra Wideband chip 4-core Neural Engine Connectivity LTE and UMTS8 GPS + Cellular model Wi-Fi 4 802.11n Bluetooth 5.3 Power Built-in rechargeable lithium-ion battery Up to 36 hours Up to 72 hours in Low Power Mode USB-C magnetic fast charging cable Environmental Features Carbon neutral combinations available 95% recycled titanium in the case 100% recycled tungsten in the Taptic Engine 100% recycled rare earth elements in all magnets 100% recycled tin in the solder of multiple printed circuit boards 100% recycled gold in plating of multiple printed circuit boards 100% recycled copper foil in the main logic board 100% recycled copper wire in the Taptic Engine. 100% recycled cobalt in the battery Energy efficient Responsible packaging Arsenic-free display glass Mercury-, BFR-, PVC-, and beryllium-free Dimensions 49mm Height: 49mm Width: 44mm Depth: 14.4mm Weight 49mm Titanium: 61.4 grams In the box Apple Watch Ultra 2 Band/Loop Apple Watch Magnetic Fast Charger to USB-C Cable (1m)