Two headlamps worth lining up side by side. They score within a hair of each other, so it comes down to the details below.
| BioLite Range 400 | BioLite HeadLamp 425 | |
|---|---|---|
| GearScore | 74✓ | 73 |
| Max lumens | 400 lm | 425 lm✓ |
| Weight | 2.6 oz✓ | 2.8 oz |
| Beam distance | 90 m✓ | 85 m |
| Max runtime | 200 h | 60 h |
| Price | $60 | $60 |
| Battery | Rechargeable | Rechargeable |
| Water rating | IP67 | IPX4 |
Highlighted cells mark the better spec: Range 400 in blue, HeadLamp 425 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 BioLite Range 400 and BioLite HeadLamp 425 take different routes to the same job. They are close enough that this really is about which handful of specs you weight most.
The Range 400 is 4 g lighter and a longer beam (90 vs 85 m). The HeadLamp 425 is brighter (425 vs 400 lm). Their GearScores land within a couple of points (74 vs 73), so neither runs away with it.
Pick the Range 400 if you care most about low weight and longer throw, which makes it the better call for counting grams on long miles. Pick the HeadLamp 425 if brightness matter more to you, or you are focused on your priorities.
The BioLite Range 400. It is 4 g lighter than the HeadLamp 425.
The BioLite HeadLamp 425. It is brighter (425 vs 400 lm) than the Range 400.
They are nearly tied at 74 and 73 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 Range 400 for low weight, or the HeadLamp 425 for brightness. The spec table above shows exactly where each wins.