Garmin Fenix 7 Solar Multisport Watch vs Garmin GPSMAP 66i
Weight and specs compared for 2026 — and which one to choose.
Solar-powered GPS multisport watch with 65-hour training battery, offline maps, dual-band GPS, 10 ATM water resistance, 115+ sport modes.
Full details →Robust handheld GPS with inReach satellite communicator for two-way messaging. Preloaded topographic maps with 100-hour battery life.
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Garmin Fenix 7 Solar Multisport Watch vs Garmin GPSMAP 66i: which should you buy?
If saving weight is your priority, the Garmin Fenix 7 Solar Multisport Watch wins — at 79 g it is 151 g (66%) lighter than the Garmin GPSMAP 66i (230 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.