Black Diamond Astro 300 Headlamp vs Black Diamond Deploy 325
Weight and specs compared for 2026 — and which one to choose.
Ultralight 300-lumen headlamp at only 45g. Compact waterproof design with single AAA battery; perfect for thru-hikers minimizing base weight.
Check price Full details →Minimalist compact headlamp at just 40g. 325 lumen max output with single-button operation. Folds flat for easy stashing in hip belt pockets.
Check price Full details →Black Diamond Astro 300 Headlamp vs Black Diamond Deploy 325: which should you buy?
If saving weight is your priority, the Black Diamond Deploy 325 wins — at 40 g it is 5 g (11%) lighter than the Black Diamond Astro 300 Headlamp (45 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest lighting page, or browse the full gear weight database.