Emisar D1K vs Fenix PD40R V3.0 size comparison
The Fenix PD40R V3.0 is 29 mm (1.14 in) longer than the Emisar D1K, and 1 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Fenix PD40R V3.0 is 29 mm (1.14 in) longer than the Emisar D1K, and 1 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Emisar D1K Check price ↗ | Fenix PD40R V3.0 Check price ↗ | |
| Length | 114 mm (4.49 in) | 143 mm (5.63 in)+29 mm |
| Head / width | 35 mm (1.38 in) | 34 mm (1.34 in)−1 mm |
| Body | 26.5 mm (1.04 in) | 26 mm (1.02 in)−0.5 mm |
| Weight | 89 g without battery | 198 g with battery |
| Battery | 21700 | 21700 |
| Max output | 1,200 lm | 3,000 lm |
| Throw | — | 500 m |
| Type | EDC | EDC |
| Price | $39.95 at intl-outdoor.com, as of Nov 4, 2026 | $119.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | intl-outdoor.com sourced Pocket thrower; lumens for SFT-25 | fenixlighting.com sourced |
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D1K vs PD40R V3.0: how they differ
Size and weight
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 143 mm (5.63 in), a difference of 29 mm (20%). At its widest point the Fenix PD40R V3.0 is 1 mm slimmer (34 vs 35 mm). Weights are published on different bases (Emisar D1K: 89 g without battery; Fenix PD40R V3.0: 198 g with battery), so they are not directly comparable.
Brightness and throw
The Fenix PD40R V3.0 is rated brighter: 3,000 lm maximum vs 1,200 lm for the Emisar D1K, 150% 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 Emisar D1K was $39.95 at intl-outdoor.com and the Fenix PD40R V3.0 $119.95 at fenixlighting.com, so the Emisar D1K cost $80.00 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Emisar D1K if you want a shorter light (29 mm shorter). Choose the Fenix PD40R V3.0 if you want more output (3,000 lm vs 1,200 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Emisar D1K Check price ↗ Fenix PD40R V3.0
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D1K vs PD40R V3.0 FAQ
Which is smaller, the Emisar D1K or the Fenix PD40R V3.0?
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 143 mm (5.63 in), a difference of 29 mm (20%). At its widest point the Fenix PD40R V3.0 is 1 mm slimmer (34 vs 35 mm). Weights are published on different bases (Emisar D1K: 89 g without battery; Fenix PD40R V3.0: 198 g with battery), so they are not directly comparable.
Which is brighter, the Emisar D1K or the Fenix PD40R V3.0?
The Fenix PD40R V3.0 is rated brighter: 3,000 lm maximum vs 1,200 lm for the Emisar D1K, 150% more.
Which is cheaper, the Emisar D1K or the Fenix PD40R V3.0?
When we checked on Nov 4, 2026, the Emisar D1K was $39.95 at intl-outdoor.com and the Fenix PD40R V3.0 $119.95 at fenixlighting.com, so the Emisar D1K cost $80.00 less. Prices change often, so check the current price before you buy.
Do the Emisar D1K and Fenix PD40R V3.0 use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Emisar D1K with similar lights
Compare Fenix PD40R V3.0 with similar lights
More
Sources
- Emisar D1K: specs from Emisar product page (manufacturer). Drawing: outline from published specs. Price $39.95 from intl-outdoor.com, checked Nov 4, 2026; prices change often.
- Fenix PD40R V3.0: specs from Fenix product page (manufacturer). Drawing: shape measured from manufacturer photo (batteryjunction.com), scaled to the published length and diameter. Price $119.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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