Opinel No.8 Outdoor vs Sawyer Mini Water Filtration System

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

Sawyer Mini Water Filtration System is the lighter option — 14 g lighter than the Opinel No.8 Outdoor (22% less weight). If grams matter to you, that is the one to beat.

Spec	Opinel No.8 Outdoor	Sawyer Mini Water Filtration System
Weight	65 g · 0.065 kg · 0.14 lb	51 g · 0.051 kg · 0.11 lb
Brand	Opinel	Sawyer
Category	Tools	Tools

Opinel No.8 Outdoor

65 g

Classic French folding knife with beechwood handle.

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Sawyer Mini Water Filtration System

51 g

Hollow-fiber squeeze filter rated to 0.1 micron. Removes 99.99999% of bacteria and protozoa. Up to 100,000 gallons lifetime.

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Opinel No.8 Outdoor vs Sawyer Mini Water Filtration System: which should you buy?

If saving weight is your priority, the Sawyer Mini Water Filtration System wins — at 51 g it is 14 g (22%) lighter than the Opinel No.8 Outdoor (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 tools page, or browse the full gear weight database.

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