Fenix E04R vs Fenix E05R size comparison
The Fenix E05R is 9.5 mm (0.37 in) longer than the Fenix E04R, and 14.7 mm narrower at its widest point. It is 17 g lighter (with battery).
The Fenix E05R is 9.5 mm (0.37 in) longer than the Fenix E04R, and 14.7 mm narrower at its widest point. It is 17 g lighter (with battery).
Dimensions
| Fenix E04R Check price ↗ | Fenix E05R Check price ↗ | |
| Length | 58.5 mm (2.30 in) | 68 mm (2.68 in)+9.5 mm |
| Head / width | 30 mm (1.18 in) | 15.3 mm (0.60 in)−14.7 mm |
| Body | — | 15 mm (0.59 in) |
| Thickness | 29.8 mm (1.17 in) | — |
| Weight | 41 g with battery | 24 g with battery−17 g |
| Battery | Built-in | Built-in |
| Max output | 300 lm | 400 lm |
| Throw | 46 m | 64 m |
| Type | Keychain | Keychain |
| Price | $29.95 at fenixlighting.com, as of Nov 4, 2026 | $29.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Listed 30.0 mm wide x 29.8 mm thick | fenixlighting.com sourced |
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E04R vs E05R: how they differ
Size and weight
The Fenix E04R is the shorter light: 58.5 mm (2.30 in) against 68 mm (2.68 in), a difference of 9.5 mm (14%). At its widest point the Fenix E05R is 14.7 mm slimmer (15.3 vs 30 mm). The Fenix E05R is 17 g lighter (24 g vs 41 g, with battery).
Brightness and throw
The Fenix E05R is rated brighter: 400 lm maximum vs 300 lm for the Fenix E04R, 33% more. For beam distance the Fenix E05R reaches further: 64 m vs 46 m rated throw (39% 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 E04R was $29.95 at fenixlighting.com and the Fenix E05R $29.95 at fenixlighting.com. 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 E04R if you want a shorter light (9.5 mm shorter). Choose the Fenix E05R if you want a slimmer profile (14.7 mm narrower), less weight (17 g lighter), more output (400 lm vs 300 lm) and longer throw (64 m vs 46 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix E04R Check price ↗ Fenix E05R
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E04R vs E05R FAQ
Which is smaller, the Fenix E04R or the Fenix E05R?
The Fenix E04R is the shorter light: 58.5 mm (2.30 in) against 68 mm (2.68 in), a difference of 9.5 mm (14%). At its widest point the Fenix E05R is 14.7 mm slimmer (15.3 vs 30 mm). The Fenix E05R is 17 g lighter (24 g vs 41 g, with battery).
Which is brighter, the Fenix E04R or the Fenix E05R?
The Fenix E05R is rated brighter: 400 lm maximum vs 300 lm for the Fenix E04R, 33% more. For beam distance the Fenix E05R reaches further: 64 m vs 46 m rated throw (39% more).
Which is cheaper, the Fenix E04R or the Fenix E05R?
When we checked on Nov 4, 2026, the Fenix E04R was $29.95 at fenixlighting.com and the Fenix E05R $29.95 at fenixlighting.com. Prices change often, so check the current price before you buy.
Do the Fenix E04R and Fenix E05R use the same battery?
Both run on a built-in rechargeable battery, so neither needs a separate battery.
Compare Fenix E04R with similar lights
Compare Fenix E05R with similar lights
More
Sources
- Fenix E04R: specs from Fenix product page (manufacturer). Price $29.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Fenix E05R: specs from Fenix product page (manufacturer). Price $29.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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