Fenix TK20R UE vs Nitecore P23i size comparison
The Nitecore P23i is 9.7 mm (0.38 in) shorter than the Fenix TK20R UE, and 3 mm narrower at its widest point.
The Nitecore P23i is 9.7 mm (0.38 in) shorter than the Fenix TK20R UE, and 3 mm narrower at its widest point.
Dimensions
| Fenix TK20R UE Check price ↗ | Nitecore P23i Check price ↗ | |
| Length | 153.7 mm (6.05 in) | 144 mm (5.67 in)−9.7 mm |
| Head / width | 34 mm (1.34 in) | 31 mm (1.22 in)−3 mm |
| Body | 25.4 mm (1.00 in) | 25 mm (0.98 in)−0.4 mm |
| Weight | 204 g with battery | — |
| Battery | 21700 | 21700 |
| Max output | 2,800 lm | 3,000 lm |
| Throw | 465 m | 470 m |
| Type | Tactical | Tactical |
| Price | $89.95 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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TK20R UE vs P23i: how they differ
Size and weight
The Nitecore P23i is the shorter light: 144 mm (5.67 in) against 153.7 mm (6.05 in), a difference of 9.7 mm (6%). At its widest point the Nitecore P23i is 3 mm slimmer (31 vs 34 mm).
Brightness and throw
The Nitecore P23i is rated brighter: 3,000 lm maximum vs 2,800 lm for the Fenix TK20R UE, 7% more. For beam distance the Nitecore P23i reaches further: 470 m vs 465 m rated throw (1% 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 TK20R UE was $89.95 at fenixlighting.com and the Nitecore P23i $99.95 at batteryjunction.com, so the Fenix TK20R UE cost $10.00 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 (9.7 mm shorter) and a slimmer profile (3 mm narrower). On the specs we track, the Nitecore P23i is ahead or level everywhere; the Fenix TK20R UE 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 TK20R UE Check price ↗ Nitecore P23i
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TK20R UE vs P23i FAQ
Which is smaller, the Fenix TK20R UE or the Nitecore P23i?
The Nitecore P23i is the shorter light: 144 mm (5.67 in) against 153.7 mm (6.05 in), a difference of 9.7 mm (6%). At its widest point the Nitecore P23i is 3 mm slimmer (31 vs 34 mm).
Which is brighter, the Fenix TK20R UE or the Nitecore P23i?
The Nitecore P23i is rated brighter: 3,000 lm maximum vs 2,800 lm for the Fenix TK20R UE, 7% more. For beam distance the Nitecore P23i reaches further: 470 m vs 465 m rated throw (1% more).
Which is cheaper, the Fenix TK20R UE or the Nitecore P23i?
When we checked on Nov 4, 2026, the Fenix TK20R UE was $89.95 at fenixlighting.com and the Nitecore P23i $99.95 at batteryjunction.com, so the Fenix TK20R UE cost $10.00 less. Prices change often, so check the current price before you buy.
Do the Fenix TK20R UE and Nitecore P23i use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Fenix TK20R UE with similar lights
Compare Nitecore P23i with similar lights
More
Sources
- Fenix TK20R UE: specs from Fenix product page (manufacturer). Price $89.95 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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