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Garmin Fenix 8 (47mm AMOLED) vs Garmin Montana 700i

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

Garmin Fenix 8 (47mm AMOLED) is the lighter option — 309 g lighter than the Garmin Montana 700i (79% less weight). If grams matter to you, that is the one to beat.
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Spec Garmin Fenix 8 (47mm AMOLED) Garmin Montana 700i
Weight 81 g · 0.081 kg · 0.18 lb 390 g · 0.390 kg · 0.86 lb
Brand Garmin Garmin
Category Navigation Navigation
Garmin Fenix 8 (47mm AMOLED)
81 g

Premium multisport GPS smartwatch with AMOLED display, built-in LED flashlight and topo maps, weight with silicone band.

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Garmin Montana 700i
390 g

Ruggedised GPS with large touchscreen and inReach satellite.

Full details →

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Garmin Fenix 8 (47mm AMOLED) vs Garmin Montana 700i: which should you buy?

If saving weight is your priority, the Garmin Fenix 8 (47mm AMOLED) wins — at 81 g it is 309 g (79%) lighter than the Garmin Montana 700i (390 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.

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