Fenix LD12R vs Sofirn SC31 Pro size comparison
The Sofirn SC31 Pro is 3.5 mm (0.14 in) shorter than the Fenix LD12R, and 3.4 mm wider at its widest point. Weights are published on different bases (without battery vs with battery), so compare them with care.
The Sofirn SC31 Pro is 3.5 mm (0.14 in) shorter than the Fenix LD12R, and 3.4 mm wider at its widest point. Weights are published on different bases (without battery vs with battery), so compare them with care.
Dimensions
| Fenix LD12R Check price ↗ | Sofirn SC31 Pro Check price ↗ | |
| Length | 121 mm (4.76 in) | 117.5 mm (4.63 in)−3.5 mm |
| Head / width | 22 mm (0.87 in) | 25.4 mm (1.00 in)+3.4 mm |
| Body | 19 mm (0.75 in) | — |
| Weight | 74 g with battery | 59 g without battery |
| Battery | 14500 | 18650 |
| Max output | 600 lm | 2,000 lm |
| Throw | 186 m | — |
| Type | EDC | EDC |
| Price | $59.95 at fenixlighting.com, as of Nov 4, 2026 | not verified yet |
| Source | fenixlighting.com sourced | sofirnlight.com sourced Only head diameter listed |
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LD12R vs SC31 Pro: how they differ
Size and weight
The Sofirn SC31 Pro is the shorter light: 117.5 mm (4.63 in) against 121 mm (4.76 in), a difference of 3.5 mm (3%). At its widest point the Fenix LD12R is 3.4 mm slimmer (22 vs 25.4 mm). Weights are published on different bases (Fenix LD12R: 74 g with battery; Sofirn SC31 Pro: 59 g without battery), so they are not directly comparable.
Brightness and throw
The Sofirn SC31 Pro is rated brighter: 2,000 lm maximum vs 600 lm for the Fenix LD12R, 233% more.
Battery
The Fenix LD12R runs on a removable 14500 battery; the Sofirn SC31 Pro runs on a removable 18650 battery. For scale, a 14500 cell is about 14 × 50 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 Fenix LD12R if you want a slimmer profile (3.4 mm narrower). Choose the Sofirn SC31 Pro if you want a shorter light (3.5 mm shorter) and more output (2,000 lm vs 600 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix LD12R Check price ↗ Sofirn SC31 Pro
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LD12R vs SC31 Pro FAQ
Which is smaller, the Fenix LD12R or the Sofirn SC31 Pro?
The Sofirn SC31 Pro is the shorter light: 117.5 mm (4.63 in) against 121 mm (4.76 in), a difference of 3.5 mm (3%). At its widest point the Fenix LD12R is 3.4 mm slimmer (22 vs 25.4 mm). Weights are published on different bases (Fenix LD12R: 74 g with battery; Sofirn SC31 Pro: 59 g without battery), so they are not directly comparable.
Which is brighter, the Fenix LD12R or the Sofirn SC31 Pro?
The Sofirn SC31 Pro is rated brighter: 2,000 lm maximum vs 600 lm for the Fenix LD12R, 233% more.
Do the Fenix LD12R and Sofirn SC31 Pro use the same battery?
The Fenix LD12R runs on a removable 14500 battery; the Sofirn SC31 Pro runs on a removable 18650 battery. For scale, a 14500 cell is about 14 × 50 mm and a 18650 about 18 × 65 mm (nominal).
Compare Fenix LD12R with similar lights
Compare Sofirn SC31 Pro with similar lights
More
Sources
- Fenix LD12R: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $59.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Sofirn SC31 Pro: specs from manufacturer published specs as listed by sofirnlight.com. Drawing: outline from published specs. No verified price yet.
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