Katadyn BeFree 1.0L vs Pieps Micro BT

Weight and specs compared for 2026 — and which one to choose.

Katadyn BeFree 1.0L is the lighter option — 118 g lighter than the Pieps Micro BT (67% less weight). If grams matter to you, that is the one to beat.

Spec	Katadyn BeFree 1.0L	Pieps Micro BT
Weight	57 g · 0.057 kg · 0.13 lb	175 g · 0.175 kg · 0.39 lb
Brand	Katadyn	Pieps
Category	Safety	Safety

Katadyn BeFree 1.0L

57 g

Flow-optimized 0.1-micron EZ-Clean hollow fiber filter integrated with 1L soft flask. Delivers 2L per minute filtration without pumping.

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Pieps Micro BT

175 g

Digital avalanche transceiver for winter mountain travel.

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Katadyn BeFree 1.0L vs Pieps Micro BT: which should you buy?

If saving weight is your priority, the Katadyn BeFree 1.0L wins — at 57 g it is 118 g (67%) lighter than the Pieps Micro BT (175 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.

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