Here is how these two headlamps compare on the numbers. On the data the Nao RL is the stronger all-round pick, and the question is whether the Distance 1500 still fits your budget or priorities.
| Petzl Nao RL | Black Diamond Distance 1500 | |
|---|---|---|
| GearScore | 67✓ | 50 |
| Max lumens | 1500 lm | 1500 lm |
| Weight | 5.1 oz✓ | 7.5 oz |
| Beam distance | 200 m✓ | 117 m |
| Max runtime | 40 h | 40 h |
| Price | $200✓ | $250 |
| Battery | Rechargeable | Rechargeable |
| Water rating | IPX4 | IP67 |
Highlighted cells mark the better spec: Nao RL in blue, Distance 1500 in amber. A blank spec is never counted as a win. Runtime is shown for context and is not scored, since makers publish it at different brightness levels. GearScore is the overall rating (0 to 100); re-weight it on the full headlamp comparison. Prices are current MSRP.
The Petzl Nao RL against the Black Diamond Distance 1500 is a study in priorities. The Nao RL is the stronger pick on most of the specs that matter, while the Distance 1500 makes its case on price.
The Nao RL is 66 g lighter, a longer beam (200 vs 117 m), and $50 cheaper. On the default GearScore the Nao RL leads 67 to 50.
Pick the Nao RL if you care most about low weight and longer throw, which makes it the better call for counting grams on long miles. Pick the Distance 1500 if you would rather save the difference.
The Petzl Nao RL. It is 66 g lighter than the Distance 1500.
The Petzl Nao RL. It is a longer beam (200 vs 117 m) than the Distance 1500.
The Petzl Nao RL, 67 to 50 on the default algorithm. You can re-weight the factors to match your trip.
The Nao RL is the stronger all-round pick here. Choose the Distance 1500 if it is the better value for you.