Casio Pro Trek PRG-340 vs Suunto Core All Black

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

Casio Pro Trek PRG-340 is the lighter option — 14 g lighter than the Suunto Core All Black (18% less weight). If grams matter to you, that is the one to beat.

Spec	Casio Pro Trek PRG-340	Suunto Core All Black
Weight	66 g · 0.066 kg · 0.15 lb	80 g · 0.080 kg · 0.18 lb
Brand	Casio	Suunto
Category	Electronics	Electronics

Casio Pro Trek PRG-340

66 g

Solar-powered outdoor watch with triple sensor.

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Suunto Core All Black

80 g

Outdoor watch with altimeter, barometer and compass.

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Casio Pro Trek PRG-340 vs Suunto Core All Black: which should you buy?

If saving weight is your priority, the Casio Pro Trek PRG-340 wins — at 66 g it is 14 g (18%) lighter than the Suunto Core All Black (80 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 electronics page, or browse the full gear weight database.

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