Here is how these two headlamps compare on the numbers. On the data the Astro 300 is the stronger all-round pick, and the question is whether the Byte still fits your budget or priorities.
| Black Diamond Astro 300 | Princeton Tec Byte | |
|---|---|---|
| GearScore | 72✓ | 60 |
| Max lumens | 300 lm✓ | 200 lm |
| Weight | 2.6 oz | 2.3 oz✓ |
| Beam distance | 55 m✓ | 39 m |
| Max runtime | 140 h | 140 h |
| Price | $20✓ | $31 |
| Battery | AAA | AAA |
| Water rating | IPX4 | IPX4 |
Highlighted cells mark the better spec: Astro 300 in blue, Byte 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 Black Diamond Astro 300 against the Princeton Tec Byte is a study in priorities. The Astro 300 is the stronger pick on most of the specs that matter, while the Byte makes its case on low weight.
The Astro 300 is brighter (300 vs 200 lm), a longer beam (55 vs 39 m), and $11 cheaper. The Byte is 10 g lighter. On the default GearScore the Astro 300 leads 72 to 60.
Pick the Astro 300 if you care most about brightness and longer throw, which makes it the better call for your priorities. Pick the Byte if low weight matter more to you, or you are focused on counting grams on long miles.
The Black Diamond Astro 300. It is brighter (300 vs 200 lm) than the Byte.
The Princeton Tec Byte. It is 10 g lighter than the Astro 300.
The Black Diamond Astro 300, 72 to 60 on the default algorithm. You can re-weight the factors to match your trip.
The Astro 300 is the stronger all-round pick here. Choose the Byte if low weight is your priority.