Fenix LD45R vs Nitecore P23i size comparison
The Nitecore P23i is 11.3 mm (0.44 in) shorter than the Fenix LD45R, and 13.5 mm narrower at its widest point.
The Nitecore P23i is 11.3 mm (0.44 in) shorter than the Fenix LD45R, and 13.5 mm narrower at its widest point.
Dimensions
| Fenix LD45R Check price ↗ | Nitecore P23i Check price ↗ | |
| Length | 155.3 mm (6.11 in) | 144 mm (5.67 in)−11.3 mm |
| Head / width | 44.5 mm (1.75 in) | 31 mm (1.22 in)−13.5 mm |
| Body | 32 mm (1.26 in) | 25 mm (0.98 in)−7 mm |
| Weight | 302 g with battery | — |
| Battery | 21700 | 21700 |
| Max output | 2,800 lm | 3,000 lm |
| Throw | 480 m | 470 m |
| Type | Tactical | Tactical |
| Price | $159.95 at fenixlighting.com, as of Nov 4, 2026 | $99.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced Retailer weight (297 g) looks inconsistent with this size; omitted until confirmed |
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LD45R vs P23i: how they differ
Size and weight
The Nitecore P23i is the shorter light: 144 mm (5.67 in) against 155.3 mm (6.11 in), a difference of 11.3 mm (7%). At its widest point the Nitecore P23i is 13.5 mm slimmer (31 vs 44.5 mm).
Brightness and throw
The Nitecore P23i is rated brighter: 3,000 lm maximum vs 2,800 lm for the Fenix LD45R, 7% more. For beam distance the Fenix LD45R reaches further: 480 m vs 470 m rated throw (2% 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 LD45R was $159.95 at fenixlighting.com and the Nitecore P23i $99.95 at batteryjunction.com, so the Nitecore P23i cost $60.00 less. Prices change often, so check the current price before you buy.
Type
Both are tactical lights in our catalog with a tube body.
Which should you buy?
Choose the Nitecore P23i if you want a shorter light (11.3 mm shorter) and a slimmer profile (13.5 mm narrower). On the specs we track, the Nitecore P23i is ahead or level everywhere; the Fenix LD45R makes sense mainly if its price, interface or a feature we don't track suits you better. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix LD45R Check price ↗ Nitecore P23i
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LD45R vs P23i FAQ
Which is smaller, the Fenix LD45R or the Nitecore P23i?
The Nitecore P23i is the shorter light: 144 mm (5.67 in) against 155.3 mm (6.11 in), a difference of 11.3 mm (7%). At its widest point the Nitecore P23i is 13.5 mm slimmer (31 vs 44.5 mm).
Which is brighter, the Fenix LD45R or the Nitecore P23i?
The Nitecore P23i is rated brighter: 3,000 lm maximum vs 2,800 lm for the Fenix LD45R, 7% more. For beam distance the Fenix LD45R reaches further: 480 m vs 470 m rated throw (2% more).
Which is cheaper, the Fenix LD45R or the Nitecore P23i?
When we checked on Nov 4, 2026, the Fenix LD45R was $159.95 at fenixlighting.com and the Nitecore P23i $99.95 at batteryjunction.com, so the Nitecore P23i cost $60.00 less. Prices change often, so check the current price before you buy.
Do the Fenix LD45R and Nitecore P23i use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Fenix LD45R with similar lights
Compare Nitecore P23i with similar lights
More
Sources
- Fenix LD45R: specs from Fenix product page (manufacturer). Price $159.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Nitecore P23i: specs from manufacturer published specs as listed by batteryjunction.com. Price $99.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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