Olight i3T EOS vs Olight Seeker 4 Mini size comparison
The Olight Seeker 4 Mini is 2 mm (0.08 in) shorter than the Olight i3T EOS, and 15 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The Olight Seeker 4 Mini is 2 mm (0.08 in) shorter than the Olight i3T EOS, and 15 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Olight i3T EOS Check price ↗ | Olight Seeker 4 Mini Check price ↗ | |
| Length | 89 mm (3.50 in) | 87 mm (3.43 in)−2 mm |
| Head / width | 15 mm (0.59 in) | 30 mm (1.18 in)+15 mm |
| Body | 15 mm (0.59 in) | 24 mm (0.94 in)+9 mm |
| Weight | 41 g with battery | 112 g listed |
| Battery | AAA | Built-in |
| Max output | 180 lm | 1,200 lm |
| Throw | — | 120 m |
| Type | EDC | EDC not on olight.com (US) |
| Price | $17.99 at olight.com, as of Nov 4, 2026 | not verified yet |
| Source | batteryjunction.com sourced | batteryjunction.com sourced |
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i3T EOS vs Seeker 4 Mini: how they differ
Size and weight
The Olight Seeker 4 Mini is the shorter light: 87 mm (3.43 in) against 89 mm (3.50 in), a difference of 2 mm (2%). At its widest point the Olight i3T EOS is 15 mm slimmer (15 vs 30 mm). Weights are published on different bases (Olight i3T EOS: 41 g with battery; Olight Seeker 4 Mini: 112 g listed), so they are not directly comparable.
Brightness and throw
The Olight Seeker 4 Mini is rated brighter: 1,200 lm maximum vs 180 lm for the Olight i3T EOS, 567% more.
Battery
The Olight i3T EOS runs on a removable AAA battery; the Olight Seeker 4 Mini runs on a built-in rechargeable battery. Only the Olight i3T EOS lets you swap in a charged spare.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Olight i3T EOS if you want a slimmer profile (15 mm narrower) and a removable cell you can swap. Choose the Olight Seeker 4 Mini if you want more output (1,200 lm vs 180 lm) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight i3T EOS Check price ↗ Olight Seeker 4 Mini
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i3T EOS vs Seeker 4 Mini FAQ
Which is smaller, the Olight i3T EOS or the Olight Seeker 4 Mini?
The Olight Seeker 4 Mini is the shorter light: 87 mm (3.43 in) against 89 mm (3.50 in), a difference of 2 mm (2%). At its widest point the Olight i3T EOS is 15 mm slimmer (15 vs 30 mm). Weights are published on different bases (Olight i3T EOS: 41 g with battery; Olight Seeker 4 Mini: 112 g listed), so they are not directly comparable.
Which is brighter, the Olight i3T EOS or the Olight Seeker 4 Mini?
The Olight Seeker 4 Mini is rated brighter: 1,200 lm maximum vs 180 lm for the Olight i3T EOS, 567% more.
Do the Olight i3T EOS and Olight Seeker 4 Mini use the same battery?
The Olight i3T EOS runs on a removable AAA battery; the Olight Seeker 4 Mini runs on a built-in rechargeable battery. Only the Olight i3T EOS lets you swap in a charged spare.
Compare Olight i3T EOS with similar lights
Compare Olight Seeker 4 Mini with similar lights
More
Sources
- Olight i3T EOS: specs from Olight product page (manufacturer); manufacturer published specs as listed by batteryjunction.com. Price $17.99 from olight.com, checked Nov 4, 2026; prices change often.
- Olight Seeker 4 Mini: specs from manufacturer published specs as listed by batteryjunction.com. No verified price yet.
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