Here is how these two tents compare on the numbers. The Duplex takes a modest overall edge, led by low weight, but the Unbound 2 has its own case.
| Zpacks Duplex | Hyperlite Mountain Gear Unbound 2 | |
|---|---|---|
| GearScore | 86✓ | 84 |
| Capacity | 2 | 2 |
| Packed weight | 17.8 oz✓ | 22.0 oz |
| Floor area | 28.1 sq ft✓ | 28 sq ft |
| Space-to-weight | 25.3 /lb✓ | 20.4 /lb |
| Peak height | 48 in | 48 in |
| Doors | 2 | 2 |
| Vestibules | 2 | 2 |
| Price | $749✓ | $795 |
| Type | Ultralight | Ultralight |
Highlighted cells mark the better spec: Duplex in blue, Unbound 2 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 Duplex against the Hyperlite Unbound 2 is a study in priorities. The Duplex wins on low weight and floor space, and the Unbound 2 pushes back on value.
The Duplex is 4 oz lighter, more floor area (28.1 vs 28 sq ft), and better space-to-weight. Their GearScores land within a couple of points (86 vs 84), so neither runs away with it.
Pick the Duplex if you care most about low weight and floor space, which makes it the better call for counting grams on long miles. Pick the Unbound 2 if you would rather save the difference.
The Zpacks Duplex. It is 4 oz lighter than the Unbound 2.
The Zpacks Duplex. It is more floor area (28.1 vs 28 sq ft) than the Unbound 2.
They are nearly tied at 86 and 84 on the default algorithm, so re-weight the score to your own priorities to break the tie.
It depends on your priorities. Go with the Duplex for low weight, or the Unbound 2 for the price. The spec table above shows exactly where each wins.