Olight i3E EOS vs RovyVon Aurora A5 G4 size comparison
The RovyVon Aurora A5 G4 is 0.5 mm (0.02 in) shorter than the Olight i3E EOS, and 1 mm wider at its widest point. Weights are published on different bases (listed vs listed), so compare them with care.
The RovyVon Aurora A5 G4 is 0.5 mm (0.02 in) shorter than the Olight i3E EOS, and 1 mm wider at its widest point. Weights are published on different bases (listed vs listed), so compare them with care.
Dimensions
| Olight i3E EOS Check price ↗ | RovyVon Aurora A5 G4 Check price ↗ | |
| Length | 60.5 mm (2.38 in) | 60 mm (2.36 in)−0.5 mm |
| Head / width | 14 mm (0.55 in) | 15 mm (0.59 in)+1 mm |
| Body | 12.5 mm (0.49 in) | 15 mm (0.59 in)+2.5 mm |
| Weight | 19.4 g listed | 17 g listed |
| Battery | AAA | Built-in |
| Max output | 90 lm | 650 lm |
| Throw | — | 110 m |
| Type | Keychain | Keychain |
| Price | $15.99 at olight.com, as of Nov 4, 2026 | $36.95 at rovyvon.com, as of Nov 4, 2026 |
| Source | olight.com sourced | batteryjunction.com sourced |
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i3E EOS vs Aurora A5 G4: how they differ
Size and weight
The RovyVon Aurora A5 G4 is the shorter light: 60 mm (2.36 in) against 60.5 mm (2.38 in), a difference of 0.5 mm (1%). At its widest point the Olight i3E EOS is 1 mm slimmer (14 vs 15 mm). Weights are published on different bases (Olight i3E EOS: 19.4 g listed; 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 90 lm for the Olight i3E EOS, 622% more.
Battery
The Olight i3E EOS runs on a removable AAA battery; the RovyVon Aurora A5 G4 runs on a built-in rechargeable battery. Only the Olight i3E EOS lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Olight i3E EOS was $15.99 at olight.com and the RovyVon Aurora A5 G4 $36.95 at rovyvon.com, so the Olight i3E EOS cost $20.96 less. Prices change often, so check the current price before you buy.
Type
Both are keychain lights in our catalog with a tube body.
Which should you buy?
Choose the Olight i3E EOS if you want a removable cell you can swap. Choose the RovyVon Aurora A5 G4 if you want more output (650 lm vs 90 lm) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight i3E EOS 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
i3E EOS vs Aurora A5 G4 FAQ
Which is smaller, the Olight i3E EOS or the RovyVon Aurora A5 G4?
The RovyVon Aurora A5 G4 is the shorter light: 60 mm (2.36 in) against 60.5 mm (2.38 in), a difference of 0.5 mm (1%). At its widest point the Olight i3E EOS is 1 mm slimmer (14 vs 15 mm). Weights are published on different bases (Olight i3E EOS: 19.4 g listed; RovyVon Aurora A5 G4: 17 g listed), so they are not directly comparable.
Which is brighter, the Olight i3E EOS or the RovyVon Aurora A5 G4?
The RovyVon Aurora A5 G4 is rated brighter: 650 lm maximum vs 90 lm for the Olight i3E EOS, 622% more.
Which is cheaper, the Olight i3E EOS or the RovyVon Aurora A5 G4?
When we checked on Nov 4, 2026, the Olight i3E EOS was $15.99 at olight.com and the RovyVon Aurora A5 G4 $36.95 at rovyvon.com, so the Olight i3E EOS cost $20.96 less. Prices change often, so check the current price before you buy.
Do the Olight i3E EOS and RovyVon Aurora A5 G4 use the same battery?
The Olight i3E EOS runs on a removable AAA battery; the RovyVon Aurora A5 G4 runs on a built-in rechargeable battery. Only the Olight i3E EOS lets you swap in a charged spare.
Compare Olight i3E EOS with similar lights
Compare RovyVon Aurora A5 G4 with similar lights
More
Sources
- Olight i3E EOS: specs from Olight product page (manufacturer). Drawing: outline from published specs. Price $15.99 from olight.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. Drawing: outline from published specs. Price $36.95 from rovyvon.com, checked Nov 4, 2026; prices change often.
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