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Coros Apex 4 (42mm with silicone strap) vs Nitecore NB10000 Gen 3

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

Coros Apex 4 (42mm with silicone strap) is the lighter option — 94 g lighter than the Nitecore NB10000 Gen 3 (63% less weight). If grams matter to you, that is the one to beat.
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Spec Coros Apex 4 (42mm with silicone strap) Nitecore NB10000 Gen 3
Weight 56 g · 0.056 kg · 0.12 lb 150 g · 0.150 kg · 0.33 lb
Brand Coros Nitecore
Category Electronics Electronics
Coros Apex 4 (42mm with silicone strap)
56 g

Rugged mountain sports GPS watch with AMOLED display, up to 85hr GPS battery. 56g in 42mm size, available with nylon strap option (lighter at 51g)

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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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Coros Apex 4 (42mm with silicone strap) vs Nitecore NB10000 Gen 3: which should you buy?

If saving weight is your priority, the Coros Apex 4 (42mm with silicone strap) wins — at 56 g it is 94 g (63%) 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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