ACR Electronics Bivy Stick vs Black Diamond Oz Screwgate Carabiner

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

Black Diamond Oz Screwgate Carabiner is the lighter option — 68 g lighter than the ACR Electronics Bivy Stick (68% less weight). If grams matter to you, that is the one to beat.

Spec	ACR Electronics Bivy Stick	Black Diamond Oz Screwgate Carabiner
Weight	100 g · 0.100 kg · 0.22 lb	32 g · 0.032 kg · 0.07 lb
Brand	ACR Electronics	Black Diamond
Category	Safety	Safety

ACR Electronics Bivy Stick

100 g

Compact two-way satellite communicator with SOS, GPS tracking and app-based messaging over the global Iridium network.

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Black Diamond Oz Screwgate Carabiner

32 g

Ultralight screwgate carabiner for via ferrata.

Full details →

ACR Electronics Bivy Stick vs Black Diamond Oz Screwgate Carabiner: which should you buy?

If saving weight is your priority, the Black Diamond Oz Screwgate Carabiner wins — at 32 g it is 68 g (68%) lighter than the ACR Electronics Bivy Stick (100 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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