Fenix HM23 V2.0 vs Nitecore NU25 UL size comparison
The Nitecore NU25 UL is 13.6 mm (0.54 in) shorter than the Fenix HM23 V2.0, and 5 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The Nitecore NU25 UL is 13.6 mm (0.54 in) shorter than the Fenix HM23 V2.0, and 5 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Fenix HM23 V2.0 Check price ↗ | Nitecore NU25 UL Check price ↗ | |
| Length | 73.6 mm (2.90 in) | 60 mm (2.36 in)−13.6 mm |
| Height | 30 mm (1.18 in) | 25 mm (0.98 in)−5 mm |
| Thickness | 36 mm (1.42 in) | 37 mm (1.46 in)+1 mm |
| Weight | 86.3 g with battery | 56 g listed |
| Battery | 14500 / AA | Built-in |
| Max output | 300 lm | 400 lm |
| Throw | 88 m | 64 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $36.95 at fenixlighting.com, as of Nov 4, 2026 | from $36.95 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 60 x 37 x 25 mm |
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HM23 V2.0 vs NU25 UL: how they differ
Size and weight
The Nitecore NU25 UL is the shorter light: 60 mm (2.36 in) against 73.6 mm (2.90 in), a difference of 13.6 mm (18%). At its widest point the Nitecore NU25 UL is 5 mm slimmer (25 vs 30 mm). Weights are published on different bases (Fenix HM23 V2.0: 86.3 g with battery; Nitecore NU25 UL: 56 g listed), so they are not directly comparable.
Brightness and throw
The Nitecore NU25 UL is rated brighter: 400 lm maximum vs 300 lm for the Fenix HM23 V2.0, 33% more. For beam distance the Fenix HM23 V2.0 reaches further: 88 m vs 64 m rated throw (38% more).
Battery
The Fenix HM23 V2.0 runs on removable 14500 / AA batteries; the Nitecore NU25 UL runs on a built-in rechargeable battery. Only the Fenix HM23 V2.0 lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Fenix HM23 V2.0 was $36.95 at fenixlighting.com and the Nitecore NU25 UL from $36.95 at batteryjunction.com. 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 HM23 V2.0 if you want longer throw (88 m vs 64 m) and a removable cell you can swap. Choose the Nitecore NU25 UL if you want a shorter light (13.6 mm shorter), a slimmer profile (5 mm narrower), more output (400 lm vs 300 lm) 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 HM23 V2.0 Check price ↗ Nitecore NU25 UL
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HM23 V2.0 vs NU25 UL FAQ
Which is smaller, the Fenix HM23 V2.0 or the Nitecore NU25 UL?
The Nitecore NU25 UL is the shorter light: 60 mm (2.36 in) against 73.6 mm (2.90 in), a difference of 13.6 mm (18%). At its widest point the Nitecore NU25 UL is 5 mm slimmer (25 vs 30 mm). Weights are published on different bases (Fenix HM23 V2.0: 86.3 g with battery; Nitecore NU25 UL: 56 g listed), so they are not directly comparable.
Which is brighter, the Fenix HM23 V2.0 or the Nitecore NU25 UL?
The Nitecore NU25 UL is rated brighter: 400 lm maximum vs 300 lm for the Fenix HM23 V2.0, 33% more. For beam distance the Fenix HM23 V2.0 reaches further: 88 m vs 64 m rated throw (38% more).
Which is cheaper, the Fenix HM23 V2.0 or the Nitecore NU25 UL?
When we checked on Nov 4, 2026, the Fenix HM23 V2.0 was $36.95 at fenixlighting.com and the Nitecore NU25 UL from $36.95 at batteryjunction.com. Prices change often, so check the current price before you buy.
Do the Fenix HM23 V2.0 and Nitecore NU25 UL use the same battery?
The Fenix HM23 V2.0 runs on removable 14500 / AA batteries; the Nitecore NU25 UL runs on a built-in rechargeable battery. Only the Fenix HM23 V2.0 lets you swap in a charged spare.
Compare Fenix HM23 V2.0 with similar lights
Compare Nitecore NU25 UL with similar lights
More
Sources
- Fenix HM23 V2.0: specs from Fenix product page (manufacturer). Price $36.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Nitecore NU25 UL: specs from manufacturer published specs as listed by batteryjunction.com. Price from $36.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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