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Garmin inReach Messenger vs Garmin Instinct 3 Solar

Weight and specs compared for 2026 — and which one to choose.

Garmin Instinct 3 Solar is the lighter option — 63 g lighter than the Garmin inReach Messenger (55% less weight). If grams matter to you, that is the one to beat.
Spec Garmin inReach Messenger Garmin Instinct 3 Solar
Weight 115 g · 0.115 kg · 0.25 lb 52 g · 0.052 kg · 0.11 lb
Brand Garmin Garmin
Category Navigation Navigation
Garmin inReach Messenger
115 g

Affordable satellite messenger with SOS and tracking.

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Garmin Instinct 3 Solar
52 g

Rugged GPS smartwatch with solar charging, 28-day battery in smartwatch mode, and unlimited battery in expedition GPS mode. Altimeter, compass included.

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Garmin inReach Messenger 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 63 g (55%) lighter than the Garmin inReach Messenger (115 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.

More navigation comparisons