Fenix HM55R size & dimensions
Fenix HM55R shown at true scale next to an 18650 cell. Add another light to compare.
Specs
| Fenix HM55R Check price ↗ | |
| Length | 64 mm (2.52 in) |
| Height | 44 mm (1.73 in) |
| Thickness | 34 mm (1.34 in) |
| Weight | 105 g with battery and headband |
| Battery | 18650 |
| Max output | 1,200 lm |
| Throw | 175 m |
| Type | Headlamp / right-angle |
| Price | $74.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Headlamp unit; front view drawn width x height |
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Size in everyday terms
The Fenix HM55R is 64 mm (2.52 in) long and 44 mm (1.73 in) tall, 34 mm thick. That is shorter than the long side of a credit card (85.6 mm), or about 1.3 AA batteries end to end (50.5 mm each). Its widest point is 19.7 mm wider than a US quarter (24.26 mm).
How it ranks
Among the 44 headlamps / right-angle lights in our catalog, the Fenix HM55R is the 9th shortest, 22nd brightest of 42 with a published output and 15th for throw of 39 with a published beam distance.
Battery, output and weight
The Fenix HM55R runs on a removable 18650 battery. The manufacturer rates its maximum output at 1,200 lm and its throw at 175 m. Listed weight is 105 g (with battery and headband). When we checked on Nov 4, 2026, it was $74.95 at fenixlighting.com.
Featured in: Best headlamps (#22).
Fenix HM55R vs…
HM55R FAQ
How big is the Fenix HM55R?
The Fenix HM55R is 64 mm (2.52 in) long and 44 mm (1.73 in) tall, 34 mm thick. That is shorter than the long side of a credit card (85.6 mm), or about 1.3 AA batteries end to end (50.5 mm each). Its widest point is 19.7 mm wider than a US quarter (24.26 mm).
What battery does the Fenix HM55R use?
The Fenix HM55R runs on a removable 18650 battery.
How bright is the Fenix HM55R?
The manufacturer rates the Fenix HM55R at 1,200 lm maximum output, with 175 m of throw.
More Fenix lights
See also: Best headlamps
Sources
- Fenix HM55R: specs from Fenix product page (manufacturer). Price $74.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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