Camp Photon vs Katadyn BeFree AC Water Filter
Weight and specs compared for 2026 — and which one to choose.
0.1-micron hollow fiber filter integrated into a collapsible soft flask. 1,000L lifespan, fast flow rate. New AC version adds activated carbon filtration for im...
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Camp Photon vs Katadyn BeFree AC Water Filter: which should you buy?
If saving weight is your priority, the Camp Photon wins — at 29 g it is 36 g (55%) lighter than the Katadyn BeFree AC Water Filter (65 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 safety page, or browse the full gear weight database.