Olight Seeker Ultra vs SureFire G2X Pro size comparison
The SureFire G2X Pro is 5.9 mm (0.23 in) shorter than the Olight Seeker Ultra, 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 Olight Seeker Ultra, and 3.3 mm narrower at its widest point. It is 95 g lighter (with battery).
Dimensions
| Olight Seeker Ultra 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 | 28 mm (1.10 in) | 25.4 mm (1.00 in)−2.6 mm |
| Weight | 220 g with battery | 124.7 g with batteries−95 g |
| Battery | 21700 | 2x CR123A |
| Max output | 4,800 lm | 600 lm |
| Throw | 265 m | — |
| Type | EDC | EDC |
| Price | $169.99 at olight.com, as of Nov 4, 2026 | $99.00 at batteryjunction.com, as of Nov 4, 2026 |
| Source | olight.com sourced Body diameter and throw from Battery Junction | batteryjunction.com sourced |
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Seeker Ultra 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 Olight Seeker Ultra is rated brighter: 4,800 lm maximum vs 600 lm for the SureFire G2X Pro, 700% more.
Battery
The Olight Seeker Ultra 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 Olight Seeker Ultra was $169.99 at olight.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the SureFire G2X Pro cost $70.99 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 Olight Seeker Ultra if you want more output (4,800 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 ↗ Olight Seeker Ultra Check price ↗ SureFire G2X Pro
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Seeker Ultra vs G2X Pro FAQ
Which is smaller, the Olight Seeker Ultra 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 Olight Seeker Ultra or the SureFire G2X Pro?
The Olight Seeker Ultra is rated brighter: 4,800 lm maximum vs 600 lm for the SureFire G2X Pro, 700% more.
Which is cheaper, the Olight Seeker Ultra or the SureFire G2X Pro?
When we checked on Nov 4, 2026, the Olight Seeker Ultra was $169.99 at olight.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the SureFire G2X Pro cost $70.99 less. Prices change often, so check the current price before you buy.
Do the Olight Seeker Ultra and SureFire G2X Pro use the same battery?
The Olight Seeker Ultra 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 Olight Seeker Ultra with similar lights
Compare SureFire G2X Pro with similar lights
More
Sources
- Olight Seeker Ultra: specs from Olight product page (manufacturer). Drawing: outline from published specs. Price $169.99 from olight.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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