Olight Seeker 3 Pro vs Olight Seeker Ultra size comparison
The Olight Seeker Ultra is 6 mm (0.24 in) longer than the Olight Seeker 3 Pro, with about the same max diameter/width. It is 20 g heavier (with battery).
The Olight Seeker Ultra is 6 mm (0.24 in) longer than the Olight Seeker 3 Pro, with about the same max diameter/width. It is 20 g heavier (with battery).
Dimensions
| Olight Seeker 3 Pro Check price ↗ | Olight Seeker Ultra Check price ↗ | |
| Length | 132 mm (5.20 in) | 138 mm (5.43 in)+6 mm |
| Head / width | 35 mm (1.38 in) | 35 mm (1.38 in)same |
| Body | 28 mm (1.10 in) | 28 mm (1.10 in)same |
| Weight | 200 g with battery | 220 g with battery+20 g |
| Battery | 21700 | 21700 |
| Max output | 4,200 lm | 4,800 lm |
| Throw | 250 m | 265 m |
| Type | EDC not on olight.com (US) | EDC |
| Price | $139.95 at batteryjunction.com, as of Nov 4, 2026 | $169.99 at olight.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | olight.com sourced Body diameter and throw from Battery Junction |
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Seeker 3 Pro vs Seeker Ultra: how they differ
Size and weight
The Olight Seeker 3 Pro is the shorter light: 132 mm (5.20 in) against 138 mm (5.43 in), a difference of 6 mm (4%). At their widest points they are about the same (35 vs 35 mm). The Olight Seeker 3 Pro is 20 g lighter (200 g vs 220 g, with battery).
Brightness and throw
The Olight Seeker Ultra is rated brighter: 4,800 lm maximum vs 4,200 lm for the Olight Seeker 3 Pro, 14% more. For beam distance the Olight Seeker Ultra reaches further: 265 m vs 250 m rated throw (6% 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 Olight Seeker 3 Pro was $139.95 at batteryjunction.com and the Olight Seeker Ultra $169.99 at olight.com, so the Olight Seeker 3 Pro cost $30.04 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 3 Pro if you want a shorter light (6 mm shorter) and less weight (20 g lighter). Choose the Olight Seeker Ultra if you want more output (4,800 lm vs 4,200 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight Seeker 3 Pro Check price ↗ Olight Seeker Ultra
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Seeker 3 Pro vs Seeker Ultra FAQ
Which is smaller, the Olight Seeker 3 Pro or the Olight Seeker Ultra?
The Olight Seeker 3 Pro is the shorter light: 132 mm (5.20 in) against 138 mm (5.43 in), a difference of 6 mm (4%). At their widest points they are about the same (35 vs 35 mm). The Olight Seeker 3 Pro is 20 g lighter (200 g vs 220 g, with battery).
Which is brighter, the Olight Seeker 3 Pro or the Olight Seeker Ultra?
The Olight Seeker Ultra is rated brighter: 4,800 lm maximum vs 4,200 lm for the Olight Seeker 3 Pro, 14% more. For beam distance the Olight Seeker Ultra reaches further: 265 m vs 250 m rated throw (6% more).
Which is cheaper, the Olight Seeker 3 Pro or the Olight Seeker Ultra?
When we checked on Nov 4, 2026, the Olight Seeker 3 Pro was $139.95 at batteryjunction.com and the Olight Seeker Ultra $169.99 at olight.com, so the Olight Seeker 3 Pro cost $30.04 less. Prices change often, so check the current price before you buy.
Do the Olight Seeker 3 Pro and Olight Seeker Ultra use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Olight Seeker 3 Pro with similar lights
Compare Olight Seeker Ultra with similar lights
More
Sources
- Olight Seeker 3 Pro: specs from manufacturer published specs as listed by batteryjunction.com. Price $139.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- Olight Seeker Ultra: specs from Olight product page (manufacturer). Price $169.99 from olight.com, checked Nov 4, 2026; prices change often.
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