Fenix E40R vs SureFire G2X Pro size comparison
The SureFire G2X Pro is 5.9 mm (0.23 in) shorter than the Fenix E40R, and 3.3 mm narrower at its widest point. It is 95 g lighter (with battery).
The SureFire G2X Pro is 5.9 mm (0.23 in) shorter than the Fenix E40R, and 3.3 mm narrower at its widest point. It is 95 g lighter (with battery).
Dimensions
| Fenix E40R Check price ↗ | SureFire G2X Pro Check price ↗ | |
| Length | 138 mm (5.43 in) | 132.1 mm (5.20 in)−5.9 mm |
| Head / width | 35 mm (1.38 in) | 31.8 mm (1.25 in)−3.3 mm |
| Body | 26.4 mm (1.04 in) | 25.4 mm (1.00 in)−1 mm |
| Weight | 220 g with battery | 124.7 g with batteries−95 g |
| Battery | 21700 | 2x CR123A |
| Max output | 5,000 lm | 600 lm |
| Throw | 242 m | — |
| Type | EDC | EDC |
| Price | $109.95 at fenixlighting.com, as of Nov 4, 2026 | $99.00 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Listed 35 mm wide x 26.4 mm high | batteryjunction.com sourced |
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E40R vs G2X Pro: how they differ
Size and weight
The SureFire G2X Pro is the shorter light: 132.1 mm (5.20 in) against 138 mm (5.43 in), a difference of 5.9 mm (4%). At its widest point the SureFire G2X Pro is 3.3 mm slimmer (31.8 vs 35 mm). The SureFire G2X Pro is 95 g lighter (124.7 g vs 220 g, with battery).
Brightness and throw
The Fenix E40R is rated brighter: 5,000 lm maximum vs 600 lm for the SureFire G2X Pro, 733% more.
Battery
The Fenix E40R runs on a removable 21700 battery; the SureFire G2X Pro runs on removable 2x CR123A batteries. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Price
When we checked on Nov 4, 2026, the Fenix E40R was $109.95 at fenixlighting.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the SureFire G2X Pro cost $10.95 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 E40R if you want more output (5,000 lm vs 600 lm). Choose the SureFire G2X Pro if you want a shorter light (5.9 mm shorter), a slimmer profile (3.3 mm narrower) and less weight (95 g lighter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix E40R Check price ↗ SureFire G2X Pro
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E40R vs G2X Pro FAQ
Which is smaller, the Fenix E40R or the SureFire G2X Pro?
The SureFire G2X Pro is the shorter light: 132.1 mm (5.20 in) against 138 mm (5.43 in), a difference of 5.9 mm (4%). At its widest point the SureFire G2X Pro is 3.3 mm slimmer (31.8 vs 35 mm). The SureFire G2X Pro is 95 g lighter (124.7 g vs 220 g, with battery).
Which is brighter, the Fenix E40R or the SureFire G2X Pro?
The Fenix E40R is rated brighter: 5,000 lm maximum vs 600 lm for the SureFire G2X Pro, 733% more.
Which is cheaper, the Fenix E40R or the SureFire G2X Pro?
When we checked on Nov 4, 2026, the Fenix E40R was $109.95 at fenixlighting.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the SureFire G2X Pro cost $10.95 less. Prices change often, so check the current price before you buy.
Do the Fenix E40R and SureFire G2X Pro use the same battery?
The Fenix E40R runs on a removable 21700 battery; the SureFire G2X Pro runs on removable 2x CR123A batteries. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Compare Fenix E40R with similar lights
Compare SureFire G2X Pro with similar lights
More
Sources
- Fenix E40R: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $109.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- SureFire G2X Pro: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: shape measured from manufacturer photo (batteryjunction.com), scaled to the published length and diameter. Price $99.00 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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