Garmin Epix Gen 2 Sapphire Smartwatch vs Garmin Instinct 3 Solar 45mm
Weight and specs compared for 2026 — and which one to choose.
AMOLED multisport GPS watch with 16-day battery, sapphire edition. 1.3" always-on display, 65-hour GPS tracking, built-in maps.
Rugged solar-powered GPS watch. 36-90 days smartwatch battery with solar charging capability.
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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Garmin Epix Gen 2 Sapphire Smartwatch vs Garmin Instinct 3 Solar 45mm: which should you buy?
If saving weight is your priority, the Garmin Instinct 3 Solar 45mm wins — at 53 g it is 17 g (24%) lighter than the Garmin Epix Gen 2 Sapphire Smartwatch (70 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest electronics page, or browse the full gear weight database.