Nitecore E4K vs Sofirn SC31 Pro size comparison
The Sofirn SC31 Pro is 0.5 mm (0.02 in) longer than the Nitecore E4K, and 3.6 mm narrower at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
The Sofirn SC31 Pro is 0.5 mm (0.02 in) longer than the Nitecore E4K, and 3.6 mm narrower at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
Dimensions
| Nitecore E4K Check price ↗ | Sofirn SC31 Pro Check price ↗ | |
| Length | 117 mm (4.61 in) | 117.5 mm (4.63 in)+0.5 mm |
| Head / width | 29 mm (1.14 in) | 25.4 mm (1.00 in)−3.6 mm |
| Body | 26 mm (1.02 in) | — |
| Weight | 80 g listed | 59 g without battery |
| Battery | 21700 | 18650 |
| Max output | 4,400 lm | 2,000 lm |
| Throw | 211 m | — |
| Type | EDC | EDC |
| Price | not verified yet | not verified yet |
| Source | batteryjunction.com sourced | sofirnlight.com sourced Only head diameter listed |
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E4K vs SC31 Pro: how they differ
Size and weight
The Nitecore E4K is the shorter light: 117 mm (4.61 in) against 117.5 mm (4.63 in), a difference of 0.5 mm (0%). At its widest point the Sofirn SC31 Pro is 3.6 mm slimmer (25.4 vs 29 mm). Weights are published on different bases (Nitecore E4K: 80 g listed; Sofirn SC31 Pro: 59 g without battery), so they are not directly comparable.
Brightness and throw
The Nitecore E4K is rated brighter: 4,400 lm maximum vs 2,000 lm for the Sofirn SC31 Pro, 120% more.
Battery
The Nitecore E4K runs on a removable 21700 battery; the Sofirn SC31 Pro runs on a removable 18650 battery. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Nitecore E4K if you want more output (4,400 lm vs 2,000 lm). Choose the Sofirn SC31 Pro if you want a slimmer profile (3.6 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Nitecore E4K Check price ↗ Sofirn SC31 Pro
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E4K vs SC31 Pro FAQ
Which is smaller, the Nitecore E4K or the Sofirn SC31 Pro?
The Nitecore E4K is the shorter light: 117 mm (4.61 in) against 117.5 mm (4.63 in), a difference of 0.5 mm (0%). At its widest point the Sofirn SC31 Pro is 3.6 mm slimmer (25.4 vs 29 mm). Weights are published on different bases (Nitecore E4K: 80 g listed; Sofirn SC31 Pro: 59 g without battery), so they are not directly comparable.
Which is brighter, the Nitecore E4K or the Sofirn SC31 Pro?
The Nitecore E4K is rated brighter: 4,400 lm maximum vs 2,000 lm for the Sofirn SC31 Pro, 120% more.
Do the Nitecore E4K and Sofirn SC31 Pro use the same battery?
The Nitecore E4K runs on a removable 21700 battery; the Sofirn SC31 Pro runs on a removable 18650 battery. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).
Compare Nitecore E4K with similar lights
Compare Sofirn SC31 Pro with similar lights
More
Sources
- Nitecore E4K: specs from manufacturer published specs as listed by batteryjunction.com. No verified price yet.
- Sofirn SC31 Pro: specs from manufacturer published specs as listed by sofirnlight.com. No verified price yet.
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