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Optimus Crux Lite vs Primus Micron III

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

Primus Micron III is the lighter option — 21 g lighter than the Optimus Crux Lite (27% less weight). If grams matter to you, that is the one to beat.
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Spec Optimus Crux Lite Primus Micron III
Weight 79 g · 0.079 kg · 0.17 lb 58 g · 0.058 kg · 0.13 lb
Brand Optimus Primus
Category Cooking Cooking
Optimus Crux Lite
79 g

Compact and lightweight canister stove with auto-ignition.

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Primus Micron III
58 g

Ultralight canister stove weighing just 58g. Piezo ignition for reliable cold-weather starts.

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Optimus Crux Lite vs Primus Micron III: which should you buy?

If saving weight is your priority, the Primus Micron III wins — at 58 g it is 21 g (27%) lighter than the Optimus Crux Lite (79 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 cooking page, or browse the full gear weight database.

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