Garmin GPSMAP 66i vs Garmin inReach Mini 3 Plus
Weight and specs compared for 2026 — and which one to choose.
Robust handheld GPS with inReach satellite communicator for two-way messaging. Preloaded topographic maps with 100-hour battery life.
Full details →Compact 99g satellite communicator with GPS, Galileo, QZSS and BeiDou support. 1.9-inch display, two-way messaging via Iridium network. Best-in-class size for e...
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Garmin GPSMAP 66i vs Garmin inReach Mini 3 Plus: which should you buy?
If saving weight is your priority, the Garmin inReach Mini 3 Plus wins — at 99 g it is 131 g (57%) 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.