The Garmin Instinct 3 Solar is a rugged GPS smartwatch for outdoor use. It has a Power Glass solar charging lens over a two-window monochrome display. The bezel combines fiber-reinforced polymer with aluminum, over a fiber-reinforced polymer case. It meets military standards for thermal and shock resistance and is water-rated to 100 meters.
Solar charging tops up the battery whenever the watch is in daylight, in smartwatch mode and in the GPS modes. In smartwatch mode, battery life is unlimited with enough sunlight, assuming all-day wear with 3 hours a day outside in 50,000 lux conditions. On the 50 mm case, GPS-only tracking runs up to 60 hours, or up to 260 hours with solar charging in 50,000 lux conditions. Multi-band GPS receives more than one frequency from each satellite. It is backed by SatIQ technology to improve positioning while optimizing battery life, and multi-GNSS support covers navigation across varied terrain.
The watch has a built-in LED flashlight with variable intensities, a red light and a strobe mode. It tracks heart rate, sleep and Pulse Ox. Built-in sports apps and training features support a range of activities. Daily suggested workouts give a full week ahead that adapts after every run or ride. Recovery time, VO2 max and a mindful breathing activity are also included. When paired with a compatible smartphone, it shows alerts for calls, texts and apps.
- Case sizes
- 45 mm and 50 mm
- Colors
- Black in 45 and 50 mm; limited-edition Twilight versions in both sizes
- Display
- Two-window monochrome MIP, 176 x 176 pixels
- Case
- Fiber-reinforced polymer case with fiber-reinforced polymer and aluminum bezel
- Band
- Silicone; 224.5 mm long on the 45 mm, 227.2 mm on the 50 mm
- Weight
- 52 g (45 mm); 58 g (50 mm)
- Case depth
- 14.9 mm (14.4 mm at the larger size)
- Water rating
- 10 ATM, rated to 100 meters