Fenix E01 V2.0 AAA vs Fenix E18R V2.0 size comparison
The Fenix E18R V2.0 is 0.5 mm (0.02 in) longer than the Fenix E01 V2.0 AAA, and 7 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Fenix E18R V2.0 is 0.5 mm (0.02 in) longer than the Fenix E01 V2.0 AAA, and 7 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Fenix E01 V2.0 AAA Check price ↗ | Fenix E18R V2.0 Check price ↗ | |
| Length | 66.5 mm (2.62 in) | 67 mm (2.64 in)+0.5 mm |
| Head / width | 15 mm (0.59 in) | 22 mm (0.87 in)+7 mm |
| Body | 14 mm (0.55 in) | 22 mm (0.87 in)+8 mm |
| Weight | 13 g without battery | 56 g with battery |
| Battery | AAA | 16340 |
| Max output | 100 lm | 1,200 lm |
| Throw | 35 m | 146 m |
| Type | EDC | EDC |
| Price | $12.95 at fenixlighting.com, as of Nov 4, 2026 | $59.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | fenixlighting.com sourced |
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E01 V2.0 AAA vs E18R V2.0: how they differ
Size and weight
The Fenix E01 V2.0 AAA is the shorter light: 66.5 mm (2.62 in) against 67 mm (2.64 in), a difference of 0.5 mm (1%). At its widest point the Fenix E01 V2.0 AAA is 7 mm slimmer (15 vs 22 mm). Weights are published on different bases (Fenix E01 V2.0 AAA: 13 g without battery; Fenix E18R V2.0: 56 g with battery), so they are not directly comparable.
Brightness and throw
The Fenix E18R V2.0 is rated brighter: 1,200 lm maximum vs 100 lm for the Fenix E01 V2.0 AAA, 1100% more. For beam distance the Fenix E18R V2.0 reaches further: 146 m vs 35 m rated throw (317% more).
Battery
The Fenix E01 V2.0 AAA runs on a removable AAA battery; the Fenix E18R V2.0 runs on a removable 16340 battery. For scale, a AAA cell is about 10.5 × 44.5 mm and a 16340 about 16 × 34 mm (nominal).
Price
When we checked on Nov 4, 2026, the Fenix E01 V2.0 AAA was $12.95 at fenixlighting.com and the Fenix E18R V2.0 $59.95 at fenixlighting.com, so the Fenix E01 V2.0 AAA cost $47.00 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 E01 V2.0 AAA if you want a slimmer profile (7 mm narrower). Choose the Fenix E18R V2.0 if you want more output (1,200 lm vs 100 lm) and longer throw (146 m vs 35 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix E01 V2.0 AAA Check price ↗ Fenix E18R V2.0
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E01 V2.0 AAA vs E18R V2.0 FAQ
Which is smaller, the Fenix E01 V2.0 AAA or the Fenix E18R V2.0?
The Fenix E01 V2.0 AAA is the shorter light: 66.5 mm (2.62 in) against 67 mm (2.64 in), a difference of 0.5 mm (1%). At its widest point the Fenix E01 V2.0 AAA is 7 mm slimmer (15 vs 22 mm). Weights are published on different bases (Fenix E01 V2.0 AAA: 13 g without battery; Fenix E18R V2.0: 56 g with battery), so they are not directly comparable.
Which is brighter, the Fenix E01 V2.0 AAA or the Fenix E18R V2.0?
The Fenix E18R V2.0 is rated brighter: 1,200 lm maximum vs 100 lm for the Fenix E01 V2.0 AAA, 1100% more. For beam distance the Fenix E18R V2.0 reaches further: 146 m vs 35 m rated throw (317% more).
Which is cheaper, the Fenix E01 V2.0 AAA or the Fenix E18R V2.0?
When we checked on Nov 4, 2026, the Fenix E01 V2.0 AAA was $12.95 at fenixlighting.com and the Fenix E18R V2.0 $59.95 at fenixlighting.com, so the Fenix E01 V2.0 AAA cost $47.00 less. Prices change often, so check the current price before you buy.
Do the Fenix E01 V2.0 AAA and Fenix E18R V2.0 use the same battery?
The Fenix E01 V2.0 AAA runs on a removable AAA battery; the Fenix E18R V2.0 runs on a removable 16340 battery. For scale, a AAA cell is about 10.5 × 44.5 mm and a 16340 about 16 × 34 mm (nominal).
Compare Fenix E01 V2.0 AAA with similar lights
Compare Fenix E18R V2.0 with similar lights
More
Sources
- Fenix E01 V2.0 AAA: specs from Fenix product page (manufacturer). Price $12.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Fenix E18R V2.0: specs from Fenix product page (manufacturer). Price $59.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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