Fenix HM55R vs Nitecore NU33 size comparison
The Nitecore NU33 is 2 mm (0.08 in) shorter than the Fenix HM55R, and 8 mm narrower at its widest point. Weights are published on different bases (listed vs with battery and headband), so compare them with care.
The Nitecore NU33 is 2 mm (0.08 in) shorter than the Fenix HM55R, and 8 mm narrower at its widest point. Weights are published on different bases (listed vs with battery and headband), so compare them with care.
Dimensions
| Fenix HM55R Check price ↗ | Nitecore NU33 Check price ↗ | |
| Length | 64 mm (2.52 in) | 62 mm (2.44 in)−2 mm |
| Height | 44 mm (1.73 in) | 36 mm (1.42 in)−8 mm |
| Thickness | 34 mm (1.34 in) | 46 mm (1.81 in)+12 mm |
| Weight | 105 g with battery and headband | 96 g listed |
| Battery | 18650 | Built-in |
| Max output | 1,200 lm | 700 lm |
| Throw | 175 m | 135 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $74.95 at fenixlighting.com, as of Nov 4, 2026 | $49.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Headlamp unit; front view drawn width x height | batteryjunction.com sourced Retailer lists 62 x 46 x 36 mm |
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HM55R vs NU33: how they differ
Size and weight
The Nitecore NU33 is the shorter light: 62 mm (2.44 in) against 64 mm (2.52 in), a difference of 2 mm (3%). At its widest point the Nitecore NU33 is 8 mm slimmer (36 vs 44 mm). Weights are published on different bases (Fenix HM55R: 105 g with battery and headband; Nitecore NU33: 96 g listed), so they are not directly comparable.
Brightness and throw
The Fenix HM55R is rated brighter: 1,200 lm maximum vs 700 lm for the Nitecore NU33, 71% more. For beam distance the Fenix HM55R reaches further: 175 m vs 135 m rated throw (30% more).
Battery
The Fenix HM55R runs on a removable 18650 battery; the Nitecore NU33 runs on a built-in rechargeable battery. Only the Fenix HM55R lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Fenix HM55R was $74.95 at fenixlighting.com and the Nitecore NU33 $49.95 at batteryjunction.com, so the Nitecore NU33 cost $25.00 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 HM55R if you want more output (1,200 lm vs 700 lm), longer throw (175 m vs 135 m) and a removable cell you can swap. Choose the Nitecore NU33 if you want a slimmer profile (8 mm narrower) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix HM55R Check price ↗ Nitecore NU33
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HM55R vs NU33 FAQ
Which is smaller, the Fenix HM55R or the Nitecore NU33?
The Nitecore NU33 is the shorter light: 62 mm (2.44 in) against 64 mm (2.52 in), a difference of 2 mm (3%). At its widest point the Nitecore NU33 is 8 mm slimmer (36 vs 44 mm). Weights are published on different bases (Fenix HM55R: 105 g with battery and headband; Nitecore NU33: 96 g listed), so they are not directly comparable.
Which is brighter, the Fenix HM55R or the Nitecore NU33?
The Fenix HM55R is rated brighter: 1,200 lm maximum vs 700 lm for the Nitecore NU33, 71% more. For beam distance the Fenix HM55R reaches further: 175 m vs 135 m rated throw (30% more).
Which is cheaper, the Fenix HM55R or the Nitecore NU33?
When we checked on Nov 4, 2026, the Fenix HM55R was $74.95 at fenixlighting.com and the Nitecore NU33 $49.95 at batteryjunction.com, so the Nitecore NU33 cost $25.00 less. Prices change often, so check the current price before you buy.
Do the Fenix HM55R and Nitecore NU33 use the same battery?
The Fenix HM55R runs on a removable 18650 battery; the Nitecore NU33 runs on a built-in rechargeable battery. Only the Fenix HM55R lets you swap in a charged spare.
Compare Fenix HM55R with similar lights
Compare Nitecore NU33 with similar lights
More
Sources
- Fenix HM55R: specs from Fenix product page (manufacturer). Price $74.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Nitecore NU33: specs from manufacturer published specs as listed by batteryjunction.com. Price $49.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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