Emisar D4K vs Fenix PD35R ACE size comparison
The Fenix PD35R ACE is 37.5 mm (1.48 in) longer than the Emisar D4K, and 1.5 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Fenix PD35R ACE is 37.5 mm (1.48 in) longer than the Emisar D4K, and 1.5 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Emisar D4K Check price ↗ | Fenix PD35R ACE Check price ↗ | |
| Length | 103 mm (4.06 in) | 140.5 mm (5.53 in)+37.5 mm |
| Head / width | 28 mm (1.10 in) | 26.5 mm (1.04 in)−1.5 mm |
| Body | 26.5 mm (1.04 in) | 23.6 mm (0.93 in)−2.9 mm |
| Weight | 58 g without battery | 145 g with battery |
| Battery | 21700 | CR123A |
| Max output | — | 2,000 lm |
| Throw | — | 380 m |
| Type | EDC | EDC |
| Price | $39.69 at intl-outdoor.com, as of Nov 4, 2026 | $85.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | intl-outdoor.com sourced Output depends on LED option | fenixlighting.com sourced |
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D4K vs PD35R ACE: how they differ
Size and weight
The Emisar D4K is the shorter light: 103 mm (4.06 in) against 140.5 mm (5.53 in), a difference of 37.5 mm (27%). At its widest point the Fenix PD35R ACE is 1.5 mm slimmer (26.5 vs 28 mm). Weights are published on different bases (Emisar D4K: 58 g without battery; Fenix PD35R ACE: 145 g with battery), so they are not directly comparable.
Brightness and throw
The Fenix PD35R ACE is rated at 2,000 lm; we have no published maximum for the Emisar D4K. Output for the Emisar D4K depends on the LED option chosen.
Battery
The Emisar D4K runs on a removable 21700 battery; the Fenix PD35R ACE runs on a removable CR123A battery. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Price
When we checked on Nov 4, 2026, the Emisar D4K was $39.69 at intl-outdoor.com and the Fenix PD35R ACE $85.95 at fenixlighting.com, so the Emisar D4K cost $46.26 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 D4K if you want a shorter light (37.5 mm shorter). Choose the Fenix PD35R ACE if you want a slimmer profile (1.5 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Emisar D4K Check price ↗ Fenix PD35R ACE
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D4K vs PD35R ACE FAQ
Which is smaller, the Emisar D4K or the Fenix PD35R ACE?
The Emisar D4K is the shorter light: 103 mm (4.06 in) against 140.5 mm (5.53 in), a difference of 37.5 mm (27%). At its widest point the Fenix PD35R ACE is 1.5 mm slimmer (26.5 vs 28 mm). Weights are published on different bases (Emisar D4K: 58 g without battery; Fenix PD35R ACE: 145 g with battery), so they are not directly comparable.
Which is cheaper, the Emisar D4K or the Fenix PD35R ACE?
When we checked on Nov 4, 2026, the Emisar D4K was $39.69 at intl-outdoor.com and the Fenix PD35R ACE $85.95 at fenixlighting.com, so the Emisar D4K cost $46.26 less. Prices change often, so check the current price before you buy.
Do the Emisar D4K and Fenix PD35R ACE use the same battery?
The Emisar D4K runs on a removable 21700 battery; the Fenix PD35R ACE runs on a removable CR123A battery. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Compare Emisar D4K with similar lights
Compare Fenix PD35R ACE with similar lights
More
Sources
- Emisar D4K: specs from Emisar product page (manufacturer). Drawing: outline from published specs. Price $39.69 from intl-outdoor.com, checked Nov 4, 2026; prices change often.
- Fenix PD35R ACE: specs from Fenix product page (manufacturer). Drawing: shape measured from manufacturer photo (batteryjunction.com), scaled to the published length and diameter. Price $85.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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