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Coros Apex 4 vs Garmin Vivoactive 6

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

Garmin Vivoactive 6 is the lighter option — 29 g lighter than the Coros Apex 4 (45% less weight). If grams matter to you, that is the one to beat.
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Spec Coros Apex 4 Garmin Vivoactive 6
Weight 64 g · 0.064 kg · 0.14 lb 35 g · 0.035 kg · 0.08 lb
Brand Coros Garmin
Category Navigation Navigation
Coros Apex 4
64 g

Mountain-sports GPS watch (46mm) with dual-band GNSS, titanium bezel and sapphire glass, weight with silicone band.

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Garmin Vivoactive 6
35 g

Lightweight smartwatch at 1.2oz. Thinnest in Garmin lineup with GPS hiking features.

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Coros Apex 4 vs Garmin Vivoactive 6: which should you buy?

If saving weight is your priority, the Garmin Vivoactive 6 wins — at 35 g it is 29 g (45%) lighter than the Coros Apex 4 (64 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