Convoy S21E vs Olight Seeker 4 Mini size comparison
The Olight Seeker 4 Mini is 29.4 mm (1.16 in) shorter than the Convoy S21E, and 2.7 mm wider at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
The Olight Seeker 4 Mini is 29.4 mm (1.16 in) shorter than the Convoy S21E, and 2.7 mm wider at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
Dimensions
| Convoy S21E Check price ↗ | Olight Seeker 4 Mini Check price ↗ | |
| Length | 116.4 mm (4.58 in) | 87 mm (3.43 in)−29.4 mm |
| Head / width | 27.3 mm (1.07 in) | 30 mm (1.18 in)+2.7 mm |
| Body | 27.3 mm (1.07 in) | 24 mm (0.94 in)−3.3 mm |
| Weight | 88 g without battery | 112 g listed |
| Battery | 21700 | Built-in |
| Max output | — | 1,200 lm |
| Throw | — | 120 m |
| Type | EDC | EDC not on olight.com (US) |
| Price | from $27.99 at flashlightgo.com, as of Nov 4, 2026 | not verified yet |
| Source | flashlightgo.com sourced Output depends on LED option | batteryjunction.com sourced |
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S21E 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 116.4 mm (4.58 in), a difference of 29.4 mm (25%). At its widest point the Convoy S21E is 2.7 mm slimmer (27.3 vs 30 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; Olight Seeker 4 Mini: 112 g listed), so they are not directly comparable.
Brightness and throw
The Olight Seeker 4 Mini is rated at 1,200 lm; we have no published maximum for the Convoy S21E. Output for the Convoy S21E depends on the LED option chosen.
Battery
The Convoy S21E runs on a removable 21700 battery; the Olight Seeker 4 Mini runs on a built-in rechargeable battery. Only the Convoy S21E 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 Convoy S21E if you want a slimmer profile (2.7 mm narrower) and a removable cell you can swap. Choose the Olight Seeker 4 Mini if you want a shorter light (29.4 mm shorter) 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 ↗ Convoy S21E Check price ↗ Olight Seeker 4 Mini
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S21E vs Seeker 4 Mini FAQ
Which is smaller, the Convoy S21E or the Olight Seeker 4 Mini?
The Olight Seeker 4 Mini is the shorter light: 87 mm (3.43 in) against 116.4 mm (4.58 in), a difference of 29.4 mm (25%). At its widest point the Convoy S21E is 2.7 mm slimmer (27.3 vs 30 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; Olight Seeker 4 Mini: 112 g listed), so they are not directly comparable.
Do the Convoy S21E and Olight Seeker 4 Mini use the same battery?
The Convoy S21E runs on a removable 21700 battery; the Olight Seeker 4 Mini runs on a built-in rechargeable battery. Only the Convoy S21E lets you swap in a charged spare.
Compare Convoy S21E with similar lights
Compare Olight Seeker 4 Mini with similar lights
More
Sources
- Convoy S21E: specs from manufacturer published specs as listed by flashlightgo.com. Drawing: outline from published specs. Price from $27.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- Olight Seeker 4 Mini: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. No verified price yet.
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