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BioLite Range 400 vs Fenix HM65R
Weight and specs compared for 2026 — and which one to choose.
BioLite Range 400 is the lighter option — 27 g lighter than the Fenix HM65R (26% less weight). If grams matter to you, that is the one to beat.
BioLite Range 400
75 g
USB-C rechargeable headlamp with 400 lumens, IP67 rating and fast charging that adds an hour of run time in eight minutes.
Check price Full details →BioLite Range 400 vs Fenix HM65R: which should you buy?
If saving weight is your priority, the BioLite Range 400 wins — at 75 g it is 27 g (26%) lighter than the Fenix HM65R (102 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.