Fenix HM70R vs Fenix HM75R size comparison
The Fenix HM75R is 3.4 mm (0.13 in) shorter than the Fenix HM70R, and 7.5 mm wider at its widest point. It is 115 g heavier (with battery).
The Fenix HM75R is 3.4 mm (0.13 in) shorter than the Fenix HM70R, and 7.5 mm wider at its widest point. It is 115 g heavier (with battery).
Dimensions
| Fenix HM70R Check price ↗ | Fenix HM75R Check price ↗ | |
| Length | 94.5 mm (3.72 in) | 91.1 mm (3.59 in)−3.4 mm |
| Height | 46 mm (1.81 in) | 53.5 mm (2.11 in)+7.5 mm |
| Thickness | 51 mm (2.01 in) | 41 mm (1.61 in)−10 mm |
| Weight | 206 g with battery and headband | 321 g with battery and headband+115 g |
| Battery | 21700 | 21700 |
| Max output | 1,600 lm | 1,600 lm |
| Throw | 186 m | 223 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $99.95 at fenixlighting.com, as of Nov 4, 2026 | from $114.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Headlamp unit; front view drawn width x height | fenixlighting.com sourced Lamp unit only; separate battery case 107.7 x 28 x 28 mm |
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HM70R vs HM75R: how they differ
Size and weight
The Fenix HM75R is the shorter light: 91.1 mm (3.59 in) against 94.5 mm (3.72 in), a difference of 3.4 mm (4%). At its widest point the Fenix HM70R is 7.5 mm slimmer (46 vs 53.5 mm). The Fenix HM70R is 115 g lighter (206 g vs 321 g, with battery and headband).
Brightness and throw
Both are rated at 1,600 lm maximum output. For beam distance the Fenix HM75R reaches further: 223 m vs 186 m rated throw (20% more).
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Fenix HM70R was $99.95 at fenixlighting.com and the Fenix HM75R from $114.95 at fenixlighting.com, so the Fenix HM70R cost $15.00 less. Prices change often, so check the current price before you buy.
Type
Both are headlamps / right-angle lights in our catalog with a headlamp body.
Which should you buy?
Choose the Fenix HM70R if you want a slimmer profile (7.5 mm narrower) and less weight (115 g lighter). Choose the Fenix HM75R if you want a shorter light (3.4 mm shorter) and longer throw (223 m vs 186 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix HM70R Check price ↗ Fenix HM75R
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HM70R vs HM75R FAQ
Which is smaller, the Fenix HM70R or the Fenix HM75R?
The Fenix HM75R is the shorter light: 91.1 mm (3.59 in) against 94.5 mm (3.72 in), a difference of 3.4 mm (4%). At its widest point the Fenix HM70R is 7.5 mm slimmer (46 vs 53.5 mm). The Fenix HM70R is 115 g lighter (206 g vs 321 g, with battery and headband).
Which is brighter, the Fenix HM70R or the Fenix HM75R?
Both are rated at 1,600 lm maximum output. For beam distance the Fenix HM75R reaches further: 223 m vs 186 m rated throw (20% more).
Which is cheaper, the Fenix HM70R or the Fenix HM75R?
When we checked on Nov 4, 2026, the Fenix HM70R was $99.95 at fenixlighting.com and the Fenix HM75R from $114.95 at fenixlighting.com, so the Fenix HM70R cost $15.00 less. Prices change often, so check the current price before you buy.
Do the Fenix HM70R and Fenix HM75R use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Fenix HM70R with similar lights
Compare Fenix HM75R with similar lights
More
Sources
- Fenix HM70R: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $99.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Fenix HM75R: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price from $114.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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