Garmin Instinct 3 Solar vs Amazfit T-Rex 3 vs Suunto Core – Ultimate Rugged Watch Showdown
Garmin Instinct 3 Solar features a 45 mm fiber-reinforced polymer case with a 0.9-inch monochrome MIP LCD and a small secondary display, plus MIL-STD-810 certified protection to 10 ATM (100 m). The Instinct 3 Solar adds a built-in LED flashlight and claims “unlimited battery life” in smartwatch mode with about 3 hours of 50,000 lux sunlight per day. Garmin lists up to 260 hours of GPS-only battery life for the Instinct 3 Solar, with an expedition GPS mode that can run indefinitely with solar under the right conditions. It uses multiband dual-frequency GNSS with SatIQ, along with altimeter, barometer, compass,