Katadyn BeFree AC Bottle 0.5L vs Sawyer Squeeze 0.5L Water Filter
Weight and specs compared for 2026 — and which one to choose.
Ultralight collapsible water filter bottle with activated carbon. Removes tannins and improves taste. Fits running vests and ultralight daypacks
Lightweight 0.1 micron water filter weighing just 85g (3 oz). Removes 99.99999% bacteria and 99.9999% protozoa. 100,000 gallon lifespan.
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Katadyn BeFree AC Bottle 0.5L vs Sawyer Squeeze 0.5L Water Filter: which should you buy?
If saving weight is your priority, the Katadyn BeFree AC Bottle 0.5L wins — at 72 g it is 13 g (15%) lighter than the Sawyer Squeeze 0.5L Water Filter (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 hygiene page, or browse the full gear weight database.