Bluetooth®, ANT+®, Wi-Fi®

Connect IQ – Download custom data fields, and get apps and widgets from Garmin's Connect IQ Store.

Memory / History – 32 GB

Water Rating – 10 ATM

Heart Rate - the Easy, Accurate Way – This premium heart rate strap transmits real-time heart rate data over ANT+® connectivity and BLUETOOTH® Low Energy technology, giving you more options to train indoors, outdoors or even online. With it, you’ll be able to consistently receive accurate heart rate on your Garmin device, in online training apps such as Zwift or even the compatible fitness equipment in your favorite class at the gym. So however you like to train, you’ll get the accurate, real-time heart rate you need to take your performance to the next level.

Built-In LED Flashlight – Variable light intensities and a red safety light give you greater awareness while you train in the dark and can provide convenient illumination when you need it. Strobe mode can even match your running cadence.

Garmin ECG App – The ECG app uses sensors to record the electrical signals that control how your heart beats. It analyzes that recording to detect signs of an irregular heart rhythm called atrial fibrillation (AFib).

Surfline® Camera – Create a video of every wave you ride in front of a Surfline camera with Surfline Sessions™ technology. Use the Surfline widget to see tide, wave height, wind and surf rating for each of the five nearest surf spots3.

Satiq Technology – Get superior positioning accuracy with multi-band GPS while optimizing battery life.

ABC Sensors – Navigate your next trail with an altimeter, barometer and 3-axis electronic compass.

Pulse Ox Sensor – Track your blood oxygen saturation while you’re awake or asleep, and gain awareness of how you’re adapting to altitude.

Long Battery Life with Solar Charging – Get up to 37 days in smartwatch mode with solar charging in 3 hours of direct sunlight (50,000 lux) per day and up to 122 hours in GPS mode with solar charging (assumes continuous use for entire period in 50,000 lux conditions).

Battery Life Size 51mm – Smartwatch: Up to 28 days/37 days with solar / Battery Saver Watch Mode: Up to 90 days/1+ year with solar / GPS Only: Up to 89 hours/122 hours with solar / All Satellite Systems: Up to 63 hours/77 hours with solar / All Satellite Systems + Multi-band: Up to 36 hours/41 hours with solar / All Satellite Systems + Music: Up to 16 hours / Max Battery GPS: Up to 213 hours/578 hours with solar / Expedition GPS: Up to 62 days/ 139 days with solar

Charging Method – Garmin proprietary plug charger.

Sapphire Edition Comes Pre-Loaded with TopoActive Maps – Preloaded TopoActive maps from around the world keep your explorations on track.

Endurance Score – This feature measures your ability to sustain prolonged efforts and combines training data from all your athletic pursuits to help you understand how training impacts your overall endurance. This dynamic measurement uses your VO2 max, short-term/long-term training loads and other factors to gauge your fitness progress beyond just VO2 max.

Rugged by Design – The resilient athletic design features a 1.3” solar charged display, responsive touchscreen, traditional buttons and 47 mm fiber-reinforced polymer case with a steel bezel and rear cover. The watch is tested to U.S. military standards for thermal, shock and water resistance.

Knowledge is Power – Your health and training data should be easy to interpret and provide actionable insight. Begin each day with a customizable morning report, and see a daily summary of health and wellness information. Use the training readiness feature — which looks at a variety of different health metrics to help you maximize your training efficiency and recovery3 — to prevent burnout.

Performance Features – Hill Score / Visual Race Predictor / Pacepro™ Technology / Climbpro Feature / Grade-Adjusted Pace / Training Readiness / Training Status / Performance Metrics / Real-Time Stamina / Daily Suggested Workout / Recovery Time / Race Widget / Wrist-Based Running Power / Garmin Coach / Multisport Auto Transition

Activity Features – Track Your Activities / Hiit Workouts / Animated Workouts / Backcountry Ski and Snowboard / Xc Ski Dynamics / Surf Activity / Mtb Dynamics

Navigation Features – Outdoor Maps+ / Multicontinent Topo Maps / Skiview™ Maps / Golf Course Maps / Nextfork™ Map Guide / up Ahead Feature / Round-Trip Routing / Courses with Turn-By-Turn Directions

Health Features – Morning Report / Hrv Status / Sleep Coach / Nap Detection / Jet Lag Adviser / Body Battery™ Energy Monitoring / Stress Tracking / Health Snapshot™ Feature / Altitude and Heat Acclimation

Connected Features – Smart Notifications / Music / Garmin Pay™ Contactless Payments / Safety and Tracking Features / Stocks Tracker / Connect Iq™ Store / Power Manager

Lens Material – Power Sapphire™

Bezel Material – Titanium

Case Material – fiber-reinforced polymer with titanium rear cover

Physical Size 51mm – 51 x 51 x 14.9 mm

Fits Wrists with the Following Circumfrence – Silicone band: 127-210 mm / Leather Band: 135-213 mm / Fabric Band: 135-213 mm / Metal Band: 135-225 mm

Display Size 51mm – 1.4” (35.56 mm) diameter / 280 x 280 pixels