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Coros APEX 4 (42mm) vs Nitecore Carbon 6k Power Bank

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

Coros APEX 4 (42mm) is the lighter option — 32 g lighter than the Nitecore Carbon 6k Power Bank (36% less weight). If grams matter to you, that is the one to beat.
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Spec Coros APEX 4 (42mm) Nitecore Carbon 6k Power Bank
Weight 56 g · 0.056 kg · 0.12 lb 88 g · 0.088 kg · 0.19 lb
Brand Coros Nitecore
Category Electronics Electronics
Coros APEX 4 (42mm)
56 g

Mountain sports GPS watch with dual-frequency satellite positioning for improved accuracy, ECG heart rhythm monitoring, and barometric altimeter for navigation

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Nitecore Carbon 6k Power Bank
88 g

Ultra-compact 6000 mAh charger at only 3.1 ounces.

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Coros APEX 4 (42mm) vs Nitecore Carbon 6k Power Bank: which should you buy?

If saving weight is your priority, the Coros APEX 4 (42mm) wins — at 56 g it is 32 g (36%) lighter than the Nitecore Carbon 6k Power Bank (88 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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