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Fenix HM50R V2.0 vs Petzl Iko Core Headlamp
Weight and specs compared for 2026 — and which one to choose.
Fenix HM50R V2.0 is the lighter option — 2 g lighter than the Petzl Iko Core Headlamp (3% less weight). If grams matter to you, that is the one to beat.
Fenix HM50R V2.0
78 g
Compact 700-lumen rechargeable headlamp running a 16340 cell, weight including battery.
Check price Full details →Petzl Iko Core Headlamp
80 g
500-lumen headlamp with rechargeable CORE battery via USB. Slim profile with a flexible headband. Red lighting mode for night vision. 80g including battery.
Check price Full details →Fenix HM50R V2.0 vs Petzl Iko Core Headlamp: which should you buy?
If saving weight is your priority, the Fenix HM50R V2.0 wins — at 78 g it is 2 g (3%) lighter than the Petzl Iko Core Headlamp (80 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.