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Katadyn Hiker Pro vs SteriPen Adventurer Opti
Weight and specs compared for 2026 — and which one to choose.
SteriPen Adventurer Opti is the lighter option — 220 g lighter than the Katadyn Hiker Pro (71% less weight). If grams matter to you, that is the one to beat.
Katadyn Hiker Pro
310 g
Classic pump water filter. Reliable for extended expeditions.
Full details →Katadyn Hiker Pro vs SteriPen Adventurer Opti: which should you buy?
If saving weight is your priority, the SteriPen Adventurer Opti wins — at 90 g it is 220 g (71%) lighter than the Katadyn Hiker Pro (310 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 hygiene page, or browse the full gear weight database.