Aerospace-Grade Titanium | Sapphire Crystal | MIL-STD-810H — Built for Extremes
A 49mm aerospace-grade titanium case with a raised sapphire crystal display edge provides genuine durability. EN13319 certified as a dive computer to 40 meters with a depth gauge and water temperature sensor. MIL-STD-810H tested for altitude, temperature extremes, shock, vibration, and freeze/thaw cycles.
Satellite SOS Emergency Connectivity — Safety Off the Grid
A breakthrough safety feature for hikers, climbers, backcountry explorers, and anyone venturing beyond cell coverage — satellite SOS enables emergency messaging when there's no cellular or Wi-Fi signal. An 86-decibel emergency siren is audible up to 180 meters.
Dual-Frequency GPS | 42-Hour Battery | Action Button
Precision dual-frequency L1+L5 GPS with backtrack waypoints, compass, and offline topographic maps. Up to 42 hours of normal use or 60+ hours in Low Power Mode. The customizable Action button instantly starts a workout, marks a waypoint, activates the flashlight, or launches a shortcut.
Advanced Health Suite — ECG, SpO₂, Temperature, Blood Pressure Trends
Medical-grade ECG, blood oxygen saturation (SpO₂), wrist temperature sensing for cycle tracking and illness early warning, sleep stages tracking, and passive blood pressure trend monitoring. watchOS 26 adds training load, Vitals app, and Smart Stack widgets.
| Processor | |
| Chipset | Apple S10 SiP — dual-core CPU, 4-core Neural Engine |
| Memory | |
| Storage | 64 GB internal |
| Connectivity | |
| Wi-Fi | Wi-Fi 6 (802.11ax) |
| Bluetooth | Bluetooth 5.3 |
| Cellular | 4G LTE (optional, +$100) — phone-free calls, messages, streaming |
| Physical | |
| Weight | 61g (titanium case without band) |
| OS | watchOS 26 |
| Action Button | Customizable — instant workout start, waypoint marking, flashlight, shortcut, or dive computer activation |
| Display | |
| Size | 49mm case — 1.92" Retina LTPO OLED, 3,000 nits peak brightness |
| Material | Sapphire crystal — flat, raised edge protection |
| Battery | |
| Normal Use | Up to 42 hours |
| Low Power Mode | Up to 60+ hours |
| Case | |
| Material | Aerospace-grade titanium — 95% recycled, bead-blasted finish |
| Safety | |
| Satellite SOS | Emergency satellite connectivity — off-grid messaging when no cellular/Wi-Fi available |
| Siren | 86-decibel emergency siren — audible up to 180m |
| Durability | |
| Standard | MIL-STD-810H — altitude, temperature, shock, vibration, freezing/thawing |
| Sensors | |
| Health | ECG (medical-grade, FDA-cleared), SpO₂, wrist temperature (0.1°C sensitivity), heart rate, sleep stages |
| Fitness | Dual-frequency L1+L5 GPS, barometric altimeter, depth gauge (±1m), water temperature sensor, compass with backtrack |
| Diving | |
| Certification | EN13319 certified dive computer — 40m depth rating, recreational scuba |