Fenix HM70R vs Fenix HM75R PRO size comparison
The Fenix HM75R PRO is 3.3 mm (0.13 in) longer than the Fenix HM70R, and 15.9 mm wider at its widest point. It is 8 g heavier (with battery).
The Fenix HM75R PRO is 3.3 mm (0.13 in) longer than the Fenix HM70R, and 15.9 mm wider at its widest point. It is 8 g heavier (with battery).
Dimensions
| Fenix HM70R Check price ↗ | Fenix HM75R PRO Check price ↗ | |
| Length | 94.5 mm (3.72 in) | 97.8 mm (3.85 in)+3.3 mm |
| Height | 46 mm (1.81 in) | 61.9 mm (2.44 in)+15.9 mm |
| Thickness | 51 mm (2.01 in) | 50.4 mm (1.98 in)−0.6 mm |
| Weight | 206 g with battery and headband | 214 g with battery and headband+8 g |
| Battery | 21700 | 21700 |
| Max output | 1,600 lm | 3,500 lm |
| Throw | 186 m | 398 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $99.95 at fenixlighting.com, as of Nov 4, 2026 | $139.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Headlamp unit; front view drawn width x height | fenixlighting.com sourced Headlamp unit; front view drawn width x height |
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HM70R vs HM75R PRO: how they differ
Size and weight
The Fenix HM70R is the shorter light: 94.5 mm (3.72 in) against 97.8 mm (3.85 in), a difference of 3.3 mm (3%). At its widest point the Fenix HM70R is 15.9 mm slimmer (46 vs 61.9 mm). The Fenix HM70R is 8 g lighter (206 g vs 214 g, with battery and headband).
Brightness and throw
The Fenix HM75R PRO is rated brighter: 3,500 lm maximum vs 1,600 lm for the Fenix HM70R, 119% more. For beam distance the Fenix HM75R PRO reaches further: 398 m vs 186 m rated throw (114% 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 PRO $139.95 at fenixlighting.com, so the Fenix HM70R cost $40.00 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 shorter light (3.3 mm shorter) and a slimmer profile (15.9 mm narrower). Choose the Fenix HM75R PRO if you want more output (3,500 lm vs 1,600 lm) and longer throw (398 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 PRO
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HM70R vs HM75R PRO FAQ
Which is smaller, the Fenix HM70R or the Fenix HM75R PRO?
The Fenix HM70R is the shorter light: 94.5 mm (3.72 in) against 97.8 mm (3.85 in), a difference of 3.3 mm (3%). At its widest point the Fenix HM70R is 15.9 mm slimmer (46 vs 61.9 mm). The Fenix HM70R is 8 g lighter (206 g vs 214 g, with battery and headband).
Which is brighter, the Fenix HM70R or the Fenix HM75R PRO?
The Fenix HM75R PRO is rated brighter: 3,500 lm maximum vs 1,600 lm for the Fenix HM70R, 119% more. For beam distance the Fenix HM75R PRO reaches further: 398 m vs 186 m rated throw (114% more).
Which is cheaper, the Fenix HM70R or the Fenix HM75R PRO?
When we checked on Nov 4, 2026, the Fenix HM70R was $99.95 at fenixlighting.com and the Fenix HM75R PRO $139.95 at fenixlighting.com, so the Fenix HM70R cost $40.00 less. Prices change often, so check the current price before you buy.
Do the Fenix HM70R and Fenix HM75R PRO 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 PRO 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 PRO: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $139.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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