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Petzl Sm'D Twist-Lock Carabiner vs ResQLink PLB-375

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

Petzl Sm'D Twist-Lock Carabiner is the lighter option — 84 g lighter than the ResQLink PLB-375 (62% less weight). If grams matter to you, that is the one to beat.
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Spec Petzl Sm'D Twist-Lock Carabiner ResQLink PLB-375
Weight 51 g · 0.051 kg · 0.11 lb 135 g · 0.135 kg · 0.30 lb
Brand Petzl ResQLink
Category Safety Safety
Petzl Sm'D Twist-Lock Carabiner
51 g

Lightweight aluminum D-shaped locking carabiner with twist-lock gate, 23 kN major axis, certified CE EN 12275 and UIAA.

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ResQLink PLB-375
135 g

Personal Locator Beacon. Activates free search and rescue.

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Petzl Sm'D Twist-Lock Carabiner vs ResQLink PLB-375: which should you buy?

If saving weight is your priority, the Petzl Sm'D Twist-Lock Carabiner wins — at 51 g it is 84 g (62%) lighter than the ResQLink PLB-375 (135 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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