Acebeam E75 vs RovyVon S3 Pro size comparison
The RovyVon S3 Pro is 10 mm (0.39 in) shorter than the Acebeam E75, and 6 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The RovyVon S3 Pro is 10 mm (0.39 in) shorter than the Acebeam E75, and 6 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Acebeam E75 Check price ↗ | RovyVon S3 Pro Check price ↗ | |
| Length | 129 mm (5.08 in) | 119 mm (4.69 in)−10 mm |
| Head / width | 35 mm (1.38 in) | 29 mm (1.14 in)−6 mm |
| Body | 28 mm (1.10 in) | 29 mm (1.14 in)+1 mm |
| Weight | 217 g with battery | 150 g listed |
| Battery | 21700 | 18650 |
| Max output | 4,000 lm | 2,800 lm |
| Throw | — | 130 m |
| Type | EDC | EDC |
| Price | $99.90 at acebeam.com, as of Nov 4, 2026 | from $79.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | batteryjunction.com sourced |
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E75 vs S3 Pro: how they differ
Size and weight
The RovyVon S3 Pro is the shorter light: 119 mm (4.69 in) against 129 mm (5.08 in), a difference of 10 mm (8%). At its widest point the RovyVon S3 Pro is 6 mm slimmer (29 vs 35 mm). Weights are published on different bases (Acebeam E75: 217 g with battery; RovyVon S3 Pro: 150 g listed), so they are not directly comparable.
Brightness and throw
The Acebeam E75 is rated brighter: 4,000 lm maximum vs 2,800 lm for the RovyVon S3 Pro, 43% more.
Battery
The Acebeam E75 runs on a removable 21700 battery; the RovyVon S3 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).
Price
When we checked on Nov 4, 2026, the Acebeam E75 was $99.90 at acebeam.com and the RovyVon S3 Pro from $79.95 at batteryjunction.com, so the RovyVon S3 Pro cost $19.95 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 Acebeam E75 if you want more output (4,000 lm vs 2,800 lm). Choose the RovyVon S3 Pro if you want a shorter light (10 mm shorter) and a slimmer profile (6 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Acebeam E75 Check price ↗ RovyVon S3 Pro
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E75 vs S3 Pro FAQ
Which is smaller, the Acebeam E75 or the RovyVon S3 Pro?
The RovyVon S3 Pro is the shorter light: 119 mm (4.69 in) against 129 mm (5.08 in), a difference of 10 mm (8%). At its widest point the RovyVon S3 Pro is 6 mm slimmer (29 vs 35 mm). Weights are published on different bases (Acebeam E75: 217 g with battery; RovyVon S3 Pro: 150 g listed), so they are not directly comparable.
Which is brighter, the Acebeam E75 or the RovyVon S3 Pro?
The Acebeam E75 is rated brighter: 4,000 lm maximum vs 2,800 lm for the RovyVon S3 Pro, 43% more.
Which is cheaper, the Acebeam E75 or the RovyVon S3 Pro?
When we checked on Nov 4, 2026, the Acebeam E75 was $99.90 at acebeam.com and the RovyVon S3 Pro from $79.95 at batteryjunction.com, so the RovyVon S3 Pro cost $19.95 less. Prices change often, so check the current price before you buy.
Do the Acebeam E75 and RovyVon S3 Pro use the same battery?
The Acebeam E75 runs on a removable 21700 battery; the RovyVon S3 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 Acebeam E75 with similar lights
Compare RovyVon S3 Pro with similar lights
More
Sources
- Acebeam E75: specs from Acebeam product page (manufacturer); manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price $99.90 from acebeam.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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