Garmin Descent MK1
Tech specs 
Size51 x 51 x 17.8 mm
MaterialStainless steel or titanium
Battery lifeDive mode: Up to 40 hours
Watch mode: Up to 19 days
Smartwatch mode: Up to 10 days
GPS/HR Activity mode: Up to 20 hours
UltraTrac™ mode: Up to 30 hours
Water-resistanceDive (Designed to comply with EN13319)
WeightSteel with silicone band: 101 g; itanium with silicone band: 94 g: Titanium with titanium band: 145 g
SensorAccelerometer, optical heart rate sensor, barometric altimeter, electronic compass, GPS, GLONASS, Depth sensor
Display240 x 240 pixels; sunlight-visible, always-on, low power, colorful display
Screen size30.5mm diameter
ColorsSlate Gray, Silver, Champagne - comes with interchangeable bands in various colors.
OtherPLATFORM: Proprietory
MEMORY: 64 MB; available 54 MB
Activity tracking 
Calories burnedYes
Heart rate24/7
Stress & recoveryYes
Pulse Ox
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPSGPS and GLONASS enabled
Running featuresVirtual pacer, VO2 max estimate, recovery advisor, race predictor, running dynamics, calculates distance for indoor workouts, personal records, virtual partner/racer
Swimming featuresLengths, distance, pace, stroke count/rate, calories; stroke type identification; open water swim metrics; swim workouts. Dive features: current depth, dive time, water temperature, ascent/descent rate, no-deco time, decompression stop information and more. Modes for single and multiple gas dives (including nitrox and trimix), gauge and apnea.
Other Maps: Preloaded topographic and cycling maps, plus more than 40,000 golf courses around the world
- Multi sport
- Music control, find my phone
- Features physiological measurements (stress score, performance condition and lactate threshold)
- built in memory: 12 GB.
- hunt/fish calendar, sun moon information, area calculation
- many other features...
Non-fitness functions 
Smartphone notificationsYes
On-board music storage
Connected pay
Affiliate link*Amazon | Garmin
Read moreArticle
*Disclosure: We are a professional review site that receives a small commission from sales of certain items, but the price is the same for you. See our affiliate disclosure page for more details.
**All tech specs and images on this page come from manufacturers. These may change over time as manufacturers sometimes update their devices. While we cannot guarantee absolute accuracy of information on this page, we promise to review this content regularly and do our best to bring you the most up-to-date information. To be absolutely sure of tech specs of a particular device, we recommend checking the manufacturer’s website.