Acebeam E75 vs Fenix E40R size comparison
The Fenix E40R is 9 mm (0.35 in) longer than the Acebeam E75, with about the same max diameter/width. It is 3 g heavier (with battery).
The Fenix E40R is 9 mm (0.35 in) longer than the Acebeam E75, with about the same max diameter/width. It is 3 g heavier (with battery).
Dimensions
| Acebeam E75 Check price ↗ | Fenix E40R Check price ↗ | |
| Length | 129 mm (5.08 in) | 138 mm (5.43 in)+9 mm |
| Head / width | 35 mm (1.38 in) | 35 mm (1.38 in)same |
| Body | 28 mm (1.10 in) | 26.4 mm (1.04 in)−1.6 mm |
| Weight | 217 g with battery | 220 g with battery+3 g |
| Battery | 21700 | 21700 |
| Max output | 4,000 lm | 5,000 lm |
| Throw | — | 242 m |
| Type | EDC | EDC |
| Price | $99.90 at acebeam.com, as of Nov 4, 2026 | $109.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | fenixlighting.com sourced Listed 35 mm wide x 26.4 mm high |
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E75 vs E40R: how they differ
Size and weight
The Acebeam E75 is the shorter light: 129 mm (5.08 in) against 138 mm (5.43 in), a difference of 9 mm (7%). At their widest points they are about the same (35 vs 35 mm). The Acebeam E75 is 3 g lighter (217 g vs 220 g, with battery).
Brightness and throw
The Fenix E40R is rated brighter: 5,000 lm maximum vs 4,000 lm for the Acebeam E75, 25% more.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Acebeam E75 was $99.90 at acebeam.com and the Fenix E40R $109.95 at fenixlighting.com, so the Acebeam E75 cost $10.05 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 a shorter light (9 mm shorter). Choose the Fenix E40R if you want more output (5,000 lm vs 4,000 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Acebeam E75 Check price ↗ Fenix E40R
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E75 vs E40R FAQ
Which is smaller, the Acebeam E75 or the Fenix E40R?
The Acebeam E75 is the shorter light: 129 mm (5.08 in) against 138 mm (5.43 in), a difference of 9 mm (7%). At their widest points they are about the same (35 vs 35 mm). The Acebeam E75 is 3 g lighter (217 g vs 220 g, with battery).
Which is brighter, the Acebeam E75 or the Fenix E40R?
The Fenix E40R is rated brighter: 5,000 lm maximum vs 4,000 lm for the Acebeam E75, 25% more.
Which is cheaper, the Acebeam E75 or the Fenix E40R?
When we checked on Nov 4, 2026, the Acebeam E75 was $99.90 at acebeam.com and the Fenix E40R $109.95 at fenixlighting.com, so the Acebeam E75 cost $10.05 less. Prices change often, so check the current price before you buy.
Do the Acebeam E75 and Fenix E40R use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Acebeam E75 with similar lights
Compare Fenix E40R with similar lights
More
Sources
- Acebeam E75: specs from Acebeam product page (manufacturer); manufacturer published specs as listed by batteryjunction.com. Price $99.90 from acebeam.com, checked Nov 4, 2026; prices change often.
- Fenix E40R: specs from Fenix product page (manufacturer). Price $109.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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