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LifeStraw Peak Series Collapsible Squeeze 650ml vs Platypus GravityWorks 4L

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

LifeStraw Peak Series Collapsible Squeeze 650ml is the lighter option — 63 g lighter than the Platypus GravityWorks 4L (39% less weight). If grams matter to you, that is the one to beat.
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Spec LifeStraw Peak Series Collapsible Squeeze 650ml Platypus GravityWorks 4L
Weight 100 g · 0.100 kg · 0.22 lb 163 g · 0.163 kg · 0.36 lb
Brand LifeStraw Platypus
Category Hygiene Hygiene
LifeStraw Peak Series Collapsible Squeeze 650ml
100 g

Ultralight collapsible water filter bottle at only 3.5 ounces.

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Platypus GravityWorks 4L
163 g

Gravity-fed water filter system for camp use.

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LifeStraw Peak Series Collapsible Squeeze 650ml vs Platypus GravityWorks 4L: which should you buy?

If saving weight is your priority, the LifeStraw Peak Series Collapsible Squeeze 650ml wins — at 100 g it is 63 g (39%) lighter than the Platypus GravityWorks 4L (163 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.

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