Garmin Fenix 8 (47mm AMOLED) vs Garmin Instinct 3 Solar
Weight and specs compared for 2026 — and which one to choose.
Premium multisport GPS smartwatch with AMOLED display, built-in LED flashlight and topo maps, weight with silicone band.
Check price Full details →Rugged GPS smartwatch with solar charging, 28-day battery in smartwatch mode, and unlimited battery in expedition GPS mode. Altimeter, compass included.
Check price Full details →Garmin Fenix 8 (47mm AMOLED) vs Garmin Instinct 3 Solar: which should you buy?
If saving weight is your priority, the Garmin Instinct 3 Solar wins — at 52 g it is 29 g (36%) lighter than the Garmin Fenix 8 (47mm AMOLED) (81 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 navigation page, or browse the full gear weight database.