Fenix TK05R vs Nitecore P23i size comparison
The Nitecore P23i is 29 mm (1.14 in) longer than the Fenix TK05R, and 1 mm narrower at its widest point.
The Nitecore P23i is 29 mm (1.14 in) longer than the Fenix TK05R, and 1 mm narrower at its widest point.
Dimensions
| Fenix TK05R Check price ↗ | Nitecore P23i Check price ↗ | |
| Length | 115 mm (4.53 in) | 144 mm (5.67 in)+29 mm |
| Head / width | 32 mm (1.26 in) | 31 mm (1.22 in)−1 mm |
| Body | 23.5 mm (0.93 in) | 25 mm (0.98 in)+1.5 mm |
| Weight | 124 g with battery | — |
| Battery | 18350 | 21700 |
| Max output | 1,000 lm | 3,000 lm |
| Throw | 450 m | 470 m |
| Type | Tactical | Tactical |
| Price | $79.95 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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TK05R vs P23i: how they differ
Size and weight
The Fenix TK05R is the shorter light: 115 mm (4.53 in) against 144 mm (5.67 in), a difference of 29 mm (20%). At its widest point the Nitecore P23i is 1 mm slimmer (31 vs 32 mm).
Brightness and throw
The Nitecore P23i is rated brighter: 3,000 lm maximum vs 1,000 lm for the Fenix TK05R, 200% more. For beam distance the Nitecore P23i reaches further: 470 m vs 450 m rated throw (4% more).
Battery
The Fenix TK05R runs on a removable 18350 battery; the Nitecore P23i runs on a removable 21700 battery. For scale, a 18350 cell is about 18 × 35 mm and a 21700 about 21 × 70 mm (nominal).
Price
When we checked on Nov 4, 2026, the Fenix TK05R was $79.95 at fenixlighting.com and the Nitecore P23i $99.95 at batteryjunction.com, so the Fenix TK05R cost $20.00 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 Fenix TK05R if you want a shorter light (29 mm shorter). Choose the Nitecore P23i if you want more output (3,000 lm vs 1,000 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix TK05R Check price ↗ Nitecore P23i
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TK05R vs P23i FAQ
Which is smaller, the Fenix TK05R or the Nitecore P23i?
The Fenix TK05R is the shorter light: 115 mm (4.53 in) against 144 mm (5.67 in), a difference of 29 mm (20%). At its widest point the Nitecore P23i is 1 mm slimmer (31 vs 32 mm).
Which is brighter, the Fenix TK05R or the Nitecore P23i?
The Nitecore P23i is rated brighter: 3,000 lm maximum vs 1,000 lm for the Fenix TK05R, 200% more. For beam distance the Nitecore P23i reaches further: 470 m vs 450 m rated throw (4% more).
Which is cheaper, the Fenix TK05R or the Nitecore P23i?
When we checked on Nov 4, 2026, the Fenix TK05R was $79.95 at fenixlighting.com and the Nitecore P23i $99.95 at batteryjunction.com, so the Fenix TK05R cost $20.00 less. Prices change often, so check the current price before you buy.
Do the Fenix TK05R and Nitecore P23i use the same battery?
The Fenix TK05R runs on a removable 18350 battery; the Nitecore P23i runs on a removable 21700 battery. For scale, a 18350 cell is about 18 × 35 mm and a 21700 about 21 × 70 mm (nominal).
Compare Fenix TK05R with similar lights
Compare Nitecore P23i with similar lights
More
Sources
- Fenix TK05R: specs from Fenix product page (manufacturer). Drawing: shape measured from manufacturer photo (goinggear.com), scaled to the published length and diameter. Price $79.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Nitecore P23i: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: shape measured from manufacturer photo (batteryjunction.com), scaled to the published length and diameter. Price $99.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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