Casio Pro Trek PRG-340 vs Nitecore NB10000 Gen 3

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

Casio Pro Trek PRG-340 is the lighter option — 84 g lighter than the Nitecore NB10000 Gen 3 (56% less weight). If grams matter to you, that is the one to beat.

Spec	Casio Pro Trek PRG-340	Nitecore NB10000 Gen 3
Weight	66 g · 0.066 kg · 0.15 lb	150 g · 0.150 kg · 0.33 lb
Brand	Casio	Nitecore
Category	Electronics	Electronics

Casio Pro Trek PRG-340

66 g

Solar-powered outdoor watch with triple sensor.

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Nitecore NB10000 Gen 3

150 g

Ultra-slim carbon-fiber 10000mAh power bank with dual USB-C, IPX5 rating and pass-through charging.

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Casio Pro Trek PRG-340 vs Nitecore NB10000 Gen 3: which should you buy?

If saving weight is your priority, the Casio Pro Trek PRG-340 wins — at 66 g it is 84 g (56%) lighter than the Nitecore NB10000 Gen 3 (150 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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