Coros Apex 4 vs Suunto 9 Peak Pro

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

Coros Apex 4 is the lighter option — 11 g lighter than the Suunto 9 Peak Pro (15% less weight). If grams matter to you, that is the one to beat.

Spec	Coros Apex 4	Suunto 9 Peak Pro
Weight	64 g · 0.064 kg · 0.14 lb	75 g · 0.075 kg · 0.17 lb
Brand	Coros	Suunto
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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Suunto 9 Peak Pro

75 g

Ultra-slim GPS multisport watch with sapphire crystal.

Full details →

Coros Apex 4 vs Suunto 9 Peak Pro: which should you buy?

If saving weight is your priority, the Coros Apex 4 wins — at 64 g it is 11 g (15%) lighter than the Suunto 9 Peak Pro (75 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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