BioLite Range 400 vs Black Diamond Spot 400-R Headlamp
Weight and specs compared for 2026 — and which one to choose.
USB-C rechargeable headlamp with 400 lumens, IP67 rating and fast charging that adds an hour of run time in eight minutes.
Rechargeable 400-lumen headlamp with multiple modes including red night vision. USB-C charging with IPX8 waterproof rating.
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BioLite Range 400 vs Black Diamond Spot 400-R Headlamp: which should you buy?
If saving weight is your priority, the BioLite Range 400 has the lower listed weight — at 75 g it is 10 g (12%) lighter than the Black Diamond Spot 400-R Headlamp (85 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.