Garmin Instinct Solar (45mm) Technical Specifications
Release Year: 2020
Display: 0.9 x 0.9 inches (23 x 23 mm) dual-window monochrome, sunlight-visible, transflective memory-in-pixel (MIP), 128 x 128 pixels resolution, Power Glass lens
Processor: Custom Garmin Wearable SoC
Storage: 16 MB (up to 200 hours of activity data)
RAM: Not applicable
Design
The Garmin Instinct Solar (45mm) is a rugged GPS outdoor smartwatch featuring a fiber-reinforced polymer case and bezel paired with a 22 mm QuickFit-compatible silicone strap. The watch case measures 45.0 x 45.0 x 15.3 mm and weighs 53 grams, designed for wrists with a circumference of 132 to 224 mm. Physical controls consist of five dedicated side buttons for menu navigation, backlighting, and lap marking. Built to U.S. military standard MIL-STD-810G for thermal, shock, and water resistance, the casing carries a 10 ATM rating (water resistant to 100 meters).
Display
Features a non-touch dual-window monochrome transflective MIP display that maintains full outdoor readability. The display is protected by a Power Glass lens equipped with a solar charging array to extend battery longevity.
Performance
Equipped with a multi-GNSS satellite receiver (GPS, GLONASS, Galileo), a 3rd-generation Garmin Elevate optical wrist heart rate monitor, a Pulse Ox blood oxygen saturation sensor, a barometric altimeter, a 3-axis electronic compass, an accelerometer, and a thermometer. Performance and outdoor features include TracBack routing, point-to-point navigation, Body Battery energy monitoring, continuous heart rate, stress tracking, sleep analysis, Pulse Ox acclimation, and Power Manager customizable battery modes. Smart functionality includes smart notifications and Bluetooth connectivity.
Battery and Ports
Powered by an internal lithium-ion battery augmented by Power Glass solar charging technology. In smartwatch mode, the device operates up to 24 days on battery alone and up to 54 days with solar (3 hours per day in 50,000 lux conditions). In continuous GPS mode, it provides up to 30 hours (up to 38 hours with solar). Max Battery GPS Mode yields up to 70 hours (up to 145 hours with solar), Expedition GPS Activity mode offers up to 28 days (up to 68 days with solar), and Battery Saver Watch Mode yields up to 56 days (or unlimited battery life with solar). Charging is managed via a proprietary Garmin 4-pin cable. Wireless connectivity includes Bluetooth Smart and ANT+.