Fenix UC35 V2.0 USB vs RovyVon S3 Pro size comparison
The RovyVon S3 Pro is 21 mm (0.83 in) shorter than the Fenix UC35 V2.0 USB, and 3.6 mm wider at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
The RovyVon S3 Pro is 21 mm (0.83 in) shorter than the Fenix UC35 V2.0 USB, and 3.6 mm wider at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
Dimensions
| Fenix UC35 V2.0 USB Check price ↗ | RovyVon S3 Pro Check price ↗ | |
| Length | 140 mm (5.51 in) | 119 mm (4.69 in)−21 mm |
| Head / width | 25.4 mm (1.00 in) | 29 mm (1.14 in)+3.6 mm |
| Body | 23.5 mm (0.93 in) | 29 mm (1.14 in)+5.5 mm |
| Weight | 89 g without battery | 150 g listed |
| Battery | 18650 / 2x CR123A | 18650 |
| Max output | 1,000 lm | 2,800 lm |
| Throw | 266 m | 130 m |
| Type | EDC | EDC |
| Price | $89.95 at fenixlighting.com, as of Nov 4, 2026 | from $79.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced |
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UC35 V2.0 USB vs S3 Pro: how they differ
Size and weight
The RovyVon S3 Pro is the shorter light: 119 mm (4.69 in) against 140 mm (5.51 in), a difference of 21 mm (15%). At its widest point the Fenix UC35 V2.0 USB is 3.6 mm slimmer (25.4 vs 29 mm). Weights are published on different bases (Fenix UC35 V2.0 USB: 89 g without battery; RovyVon S3 Pro: 150 g listed), so they are not directly comparable.
Brightness and throw
The RovyVon S3 Pro is rated brighter: 2,800 lm maximum vs 1,000 lm for the Fenix UC35 V2.0 USB, 180% more. For beam distance the Fenix UC35 V2.0 USB reaches further: 266 m vs 130 m rated throw (105% more).
Battery
The Fenix UC35 V2.0 USB runs on removable 18650 / 2x CR123A batteries; the RovyVon S3 Pro runs on a removable 18650 battery.
Price
When we checked on Nov 4, 2026, the Fenix UC35 V2.0 USB was $89.95 at fenixlighting.com and the RovyVon S3 Pro from $79.95 at batteryjunction.com, so the RovyVon S3 Pro cost $10.00 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 Fenix UC35 V2.0 USB if you want a slimmer profile (3.6 mm narrower) and longer throw (266 m vs 130 m). Choose the RovyVon S3 Pro if you want a shorter light (21 mm shorter) and more output (2,800 lm vs 1,000 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix UC35 V2.0 USB Check price ↗ RovyVon S3 Pro
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
UC35 V2.0 USB vs S3 Pro FAQ
Which is smaller, the Fenix UC35 V2.0 USB or the RovyVon S3 Pro?
The RovyVon S3 Pro is the shorter light: 119 mm (4.69 in) against 140 mm (5.51 in), a difference of 21 mm (15%). At its widest point the Fenix UC35 V2.0 USB is 3.6 mm slimmer (25.4 vs 29 mm). Weights are published on different bases (Fenix UC35 V2.0 USB: 89 g without battery; RovyVon S3 Pro: 150 g listed), so they are not directly comparable.
Which is brighter, the Fenix UC35 V2.0 USB or the RovyVon S3 Pro?
The RovyVon S3 Pro is rated brighter: 2,800 lm maximum vs 1,000 lm for the Fenix UC35 V2.0 USB, 180% more. For beam distance the Fenix UC35 V2.0 USB reaches further: 266 m vs 130 m rated throw (105% more).
Which is cheaper, the Fenix UC35 V2.0 USB or the RovyVon S3 Pro?
When we checked on Nov 4, 2026, the Fenix UC35 V2.0 USB was $89.95 at fenixlighting.com and the RovyVon S3 Pro from $79.95 at batteryjunction.com, so the RovyVon S3 Pro cost $10.00 less. Prices change often, so check the current price before you buy.
Do the Fenix UC35 V2.0 USB and RovyVon S3 Pro use the same battery?
The Fenix UC35 V2.0 USB runs on removable 18650 / 2x CR123A batteries; the RovyVon S3 Pro runs on a removable 18650 battery.
Compare Fenix UC35 V2.0 USB with similar lights
Compare RovyVon S3 Pro with similar lights
More
Sources
- Fenix UC35 V2.0 USB: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $89.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- RovyVon S3 Pro: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price from $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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