Fox 40 Micro Whistle vs Platypus QuickDraw Microfilter

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

Fox 40 Micro Whistle is the lighter option — 59 g lighter than the Platypus QuickDraw Microfilter (86% less weight). If grams matter to you, that is the one to beat.

Spec	Fox 40 Micro Whistle	Platypus QuickDraw Microfilter
Weight	10 g · 0.010 kg · 0.02 lb	69 g · 0.069 kg · 0.15 lb
Brand	Fox 40	Platypus
Category	Safety	Safety

Fox 40 Micro Whistle

10 g

Pealess safety whistle audible up to 1km.

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Platypus QuickDraw Microfilter

69 g

Hollow fiber squeeze filter with fast flow rate and BPA-free materials. Filters to 0.2 microns removing bacteria and protozoa from water sources.

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Fox 40 Micro Whistle vs Platypus QuickDraw Microfilter: which should you buy?

If saving weight is your priority, the Fox 40 Micro Whistle wins — at 10 g it is 59 g (86%) lighter than the Platypus QuickDraw Microfilter (69 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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