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Black Diamond Spot 400 vs Nitecore NU21

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

Nitecore NU21 is the lighter option — 51 g lighter than the Black Diamond Spot 400 (54% less weight). If grams matter to you, that is the one to beat.
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Spec Black Diamond Spot 400 Nitecore NU21
Weight 95 g · 0.095 kg · 0.21 lb 44 g · 0.044 kg · 0.10 lb
Brand Black Diamond Nitecore
Category Lighting Lighting
Black Diamond Spot 400
95 g

400-lumen headlamp with strobe mode and IPX8 waterproofing.

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Nitecore NU21
44 g

Ultralight USB-C rechargeable headlamp with 360-lumen white and auxiliary red beams, built for running and minimalist hiking.

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Black Diamond Spot 400 vs Nitecore NU21: which should you buy?

If saving weight is your priority, the Nitecore NU21 wins — at 44 g it is 51 g (54%) lighter than the Black Diamond Spot 400 (95 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 lighting page, or browse the full gear weight database.

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