Fenix E03R V2.0 vs RovyVon Aurora A5 G4 size comparison
The RovyVon Aurora A5 G4 is 7.5 mm (0.30 in) longer than the Fenix E03R V2.0, and 11 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The RovyVon Aurora A5 G4 is 7.5 mm (0.30 in) longer than the Fenix E03R V2.0, and 11 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Fenix E03R V2.0 Check price ↗ | RovyVon Aurora A5 G4 Check price ↗ | |
| Length | 52.5 mm (2.07 in) | 60 mm (2.36 in)+7.5 mm |
| Head / width | 26 mm (1.02 in) | 15 mm (0.59 in)−11 mm |
| Body | — | 15 mm (0.59 in) |
| Thickness | 13 mm (0.51 in) | — |
| Weight | 30 g with battery | 17 g listed |
| Battery | Built-in | Built-in |
| Max output | 500 lm | 650 lm |
| Throw | 90 m | 110 m |
| Type | Keychain | Keychain |
| Price | $29.95 at fenixlighting.com, as of Nov 4, 2026 | $36.95 at rovyvon.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Listed 26.0 mm wide x 13.0 mm thick | batteryjunction.com sourced |
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E03R V2.0 vs Aurora A5 G4: how they differ
Size and weight
The Fenix E03R V2.0 is the shorter light: 52.5 mm (2.07 in) against 60 mm (2.36 in), a difference of 7.5 mm (13%). At its widest point the RovyVon Aurora A5 G4 is 11 mm slimmer (15 vs 26 mm). Weights are published on different bases (Fenix E03R V2.0: 30 g with battery; RovyVon Aurora A5 G4: 17 g listed), so they are not directly comparable.
Brightness and throw
The RovyVon Aurora A5 G4 is rated brighter: 650 lm maximum vs 500 lm for the Fenix E03R V2.0, 30% more. For beam distance the RovyVon Aurora A5 G4 reaches further: 110 m vs 90 m rated throw (22% more).
Battery
Both run on a built-in rechargeable battery, so neither needs a separate battery.
Price
When we checked on Nov 4, 2026, the Fenix E03R V2.0 was $29.95 at fenixlighting.com and the RovyVon Aurora A5 G4 $36.95 at rovyvon.com, so the Fenix E03R V2.0 cost $7.00 less. Prices change often, so check the current price before you buy.
Type
Both are keychain lights in our catalog.
Which should you buy?
Choose the Fenix E03R V2.0 if you want a shorter light (7.5 mm shorter). Choose the RovyVon Aurora A5 G4 if you want a slimmer profile (11 mm narrower), more output (650 lm vs 500 lm) and longer throw (110 m vs 90 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix E03R V2.0 Check price ↗ RovyVon Aurora A5 G4
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E03R V2.0 vs Aurora A5 G4 FAQ
Which is smaller, the Fenix E03R V2.0 or the RovyVon Aurora A5 G4?
The Fenix E03R V2.0 is the shorter light: 52.5 mm (2.07 in) against 60 mm (2.36 in), a difference of 7.5 mm (13%). At its widest point the RovyVon Aurora A5 G4 is 11 mm slimmer (15 vs 26 mm). Weights are published on different bases (Fenix E03R V2.0: 30 g with battery; RovyVon Aurora A5 G4: 17 g listed), so they are not directly comparable.
Which is brighter, the Fenix E03R V2.0 or the RovyVon Aurora A5 G4?
The RovyVon Aurora A5 G4 is rated brighter: 650 lm maximum vs 500 lm for the Fenix E03R V2.0, 30% more. For beam distance the RovyVon Aurora A5 G4 reaches further: 110 m vs 90 m rated throw (22% more).
Which is cheaper, the Fenix E03R V2.0 or the RovyVon Aurora A5 G4?
When we checked on Nov 4, 2026, the Fenix E03R V2.0 was $29.95 at fenixlighting.com and the RovyVon Aurora A5 G4 $36.95 at rovyvon.com, so the Fenix E03R V2.0 cost $7.00 less. Prices change often, so check the current price before you buy.
Do the Fenix E03R V2.0 and RovyVon Aurora A5 G4 use the same battery?
Both run on a built-in rechargeable battery, so neither needs a separate battery.
Compare Fenix E03R V2.0 with similar lights
Compare RovyVon Aurora A5 G4 with similar lights
More
Sources
- Fenix E03R V2.0: specs from Fenix product page (manufacturer). Price $29.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- RovyVon Aurora A5 G4: specs from RovyVon product page (manufacturer); manufacturer published specs as listed by batteryjunction.com. Price $36.95 from rovyvon.com, checked Nov 4, 2026; prices change often.
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