Sawyer Mini
About 2 oz; pouch, straw or inline; backflush to clean.
- 2 oz
- 0.1 micron
- Pouch/straw/inline
Short version: the Katadyn BeFree is the better filter for trail runners and fast hikers because it flows very fast and you drink straight from its 1.0 L flask. The Sawyer Mini is better for day hikes, emergency kits and backups because it is tiny, inexpensive and works as a pouch, straw or inline filter.
Both are 0.1-micron hollow-fiber filters that remove bacteria and protozoa but not viruses. The Sawyer Mini weighs about 2 oz, cleans by backflushing and has a slower flow. The Katadyn BeFree 1.0L weighs about 2.3 oz, flows very fast and cleans with a shake or swish.
Based on CDC · Sawyer Products · Katadyn

About 2 oz; pouch, straw or inline; backflush to clean.
Very fast flow through a 1.0 L soft flask; shake to clean.
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| Spec | Best backup and budgetSawyer Mini | Best for speedKatadyn BeFree 1.0L |
|---|---|---|
| Pore size | 0.1 micron | 0.1 micron |
| Flow | Slower | Very fast |
| Weight | About 2 oz | About 2.3 oz |
| Cleaning | Backflush | Shake/swish |
| Format | Pouch / straw / inline | Soft flask |
| Best for | Budgets, emergency kits | Speed, trail runners |
| Price & stock | Check price | Check price |
The Mini is small enough to live in a daypack, a glovebox or an emergency kit. You can squeeze water through it from a pouch, drink through it like a straw, or put it inline on a hydration hose.
Flow is slower than the BeFree and slower than the full-size Sawyer Squeeze, so it is tiring for filtering a lot of water for a group.
Fill the flask in a stream and drink right away: the BeFree’s flow is the fastest in our guide, which is why trail runners and fastpackers like it.
It isn’t designed for inline hydration setups, and its filter life is shorter than the Sawyer Squeeze’s.
Pick by how you drink on the trail: from a flask, from a pouch, or through a hose. Remember neither removes viruses.
BeFree is very fast; the Mini is slower.
The Mini works as a pouch, straw or inline filter; the BeFree is a flask.
Backflush (Mini) vs shake or swish (BeFree).
Neither removes viruses; add chemical treatment where viruses are a concern.
For speed and drinking on the move, yes. For versatility and price, the Sawyer Mini is better.
No. Like the BeFree, it removes bacteria and protozoa, not viruses.
About 2 oz. The BeFree is about 2.3 oz.
Hollow-fiber filters can be damaged by freezing when wet. Keep them warm in cold weather.
We compared Sawyer and Katadyn specifications and the sources on our main backpacking water filter guide, as of October 2026.
We have not hands-on tested these products; we compare published specifications, independent measurements and manufacturer documentation, and we update this page when models change. Read the full methodology.