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HydraPak UltraFlask Speed 600ml vs Katadyn Hiker Pro

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

HydraPak UltraFlask Speed 600ml is the lighter option — 253 g lighter than the Katadyn Hiker Pro (82% less weight). If grams matter to you, that is the one to beat.
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Spec HydraPak UltraFlask Speed 600ml Katadyn Hiker Pro
Weight 57 g · 0.057 kg · 0.13 lb 310 g · 0.310 kg · 0.68 lb
Brand HydraPak Katadyn
Category Hygiene Hygiene
HydraPak UltraFlask Speed 600ml
57 g

Soft-sided water bottle at 2 oz (57g) designed for running hydration vests and ultralight backpacking with collapsible design.

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Katadyn Hiker Pro
310 g

Classic pump water filter. Reliable for extended expeditions.

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HydraPak UltraFlask Speed 600ml vs Katadyn Hiker Pro: which should you buy?

If saving weight is your priority, the HydraPak UltraFlask Speed 600ml wins — at 57 g it is 253 g (82%) lighter than the Katadyn Hiker Pro (310 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.

More hygiene comparisons