Big Agnes Copper Spur HV UL3 vs NEMO Dragonfly OSMO 2P

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

NEMO Dragonfly OSMO 2P is the lighter option — 100 g lighter than the Big Agnes Copper Spur HV UL3 (7% less weight). If grams matter to you, that is the one to beat.

Spec	Big Agnes Copper Spur HV UL3	NEMO Dragonfly OSMO 2P
Weight	1,360 g · 1.360 kg · 3.00 lb	1,260 g · 1.260 kg · 2.78 lb
Brand	Big Agnes	NEMO
Category	Shelter	Shelter

Big Agnes Copper Spur HV UL3

1,360 g

Ultralight 3-person freestanding tent for groups.

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NEMO Dragonfly OSMO 2P

1,260 g

Freestanding double-wall 2P tent with pre-bent DIAPOLE poles and recycled PFAS-free OSMO fabric; 34% more head volume.

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Big Agnes Copper Spur HV UL3 vs NEMO Dragonfly OSMO 2P: which should you buy?

If saving weight is your priority, the NEMO Dragonfly OSMO 2P wins — at 1,260 g it is 100 g (7%) lighter than the Big Agnes Copper Spur HV UL3 (1,360 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 shelter page, or browse the full gear weight database.

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