Coros Apex 4 (42mm with silicone strap) vs Nitecore NB Air 5000mAh
Weight and specs compared for 2026 — and which one to choose.
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)
Full details →Ultra-lightweight power bank with 5000mAh capacity, 18W USB-C fast charging, IPX7 waterproof, carbon fiber frame construction.
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Coros Apex 4 (42mm with silicone strap) vs Nitecore NB Air 5000mAh: which should you buy?
If saving weight is your priority, the Coros Apex 4 (42mm with silicone strap) wins — at 56 g it is 33 g (37%) lighter than the Nitecore NB Air 5000mAh (89 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.