Here is how these two tents compare on the numbers. The Altaplex leans on low weight while the Hornet Elite OSMO 2P answers with floor space, so the pick comes down to which you value.
| Zpacks Altaplex | NEMO Hornet Elite OSMO 2P | |
|---|---|---|
| GearScore | 85✓ | 79 |
| Capacity | 1 | 2 |
| Packed weight | 13.4 oz✓ | 27.0 oz |
| Floor area | 25 sq ft | 27.3 sq ft✓ |
| Space-to-weight | 29.9 /lb✓ | 16.2 /lb |
| Peak height | 58 in✓ | 37 in |
| Doors | 2 | 2 |
| Vestibules | 1 | 2✓ |
| Price | $699✓ | $700 |
| Type | Ultralight | Ultralight |
Highlighted cells mark the better spec: Altaplex in blue, Hornet Elite OSMO 2P in amber. A blank spec is never counted as a win. GearScore is the overall rating (0 to 100); re-weight it on the full tent comparison. Prices are current MSRP.
The Zpacks Altaplex against the NEMO Hornet Elite OSMO 2P is a study in priorities. The Altaplex wins on low weight and space-to-weight, and the Hornet Elite OSMO 2P pushes back on floor space and vestibule storage.
The Altaplex is 14 oz lighter, better space-to-weight, and taller (58 vs 37 in peak). The Hornet Elite OSMO 2P is more floor area (27.3 vs 25 sq ft) and more vestibules (2 vs 1). On the default GearScore the Altaplex leads 85 to 79.
Pick the Altaplex if you care most about low weight and space-to-weight, which makes it the better call for counting grams on long miles. Pick the Hornet Elite OSMO 2P if floor space and vestibule storage matter more to you, or you are focused on comfort and room to move.
The Zpacks Altaplex. It is 14 oz lighter than the Hornet Elite OSMO 2P.
The NEMO Hornet Elite OSMO 2P. It is more floor area (27.3 vs 25 sq ft) than the Altaplex.
The Zpacks Altaplex, 85 to 79 on the default algorithm. You can re-weight the factors to match your trip.
It depends on your priorities. Go with the Altaplex for low weight, or the Hornet Elite OSMO 2P for floor space. The spec table above shows exactly where each wins.