Convoy S21E vs Klarus G15 size comparison
The Klarus G15 is 4.6 mm (0.18 in) longer than the Convoy S21E, with about the same max diameter/width. Weights are published on different bases (listed vs without battery), so compare them with care.
The Klarus G15 is 4.6 mm (0.18 in) longer than the Convoy S21E, with about the same max diameter/width. Weights are published on different bases (listed vs without battery), so compare them with care.
Dimensions
| Convoy S21E Check price ↗ | Klarus G15 Check price ↗ | |
| Length | 116.4 mm (4.58 in) | 121 mm (4.76 in)+4.6 mm |
| Head / width | 27.3 mm (1.07 in) | 27 mm (1.06 in)−0.3 mm |
| Body | 27.3 mm (1.07 in) | 25 mm (0.98 in)−2.3 mm |
| Weight | 88 g without battery | 70 g listed |
| Battery | 21700 | 21700 |
| Max output | — | 4,200 lm |
| Throw | — | 200 m |
| Type | EDC | EDC |
| Price | from $27.99 at flashlightgo.com, as of Nov 4, 2026 | $79.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Output depends on LED option | batteryjunction.com sourced |
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S21E vs G15: how they differ
Size and weight
The Convoy S21E is the shorter light: 116.4 mm (4.58 in) against 121 mm (4.76 in), a difference of 4.6 mm (4%). At their widest points they are about the same (27.3 vs 27 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; Klarus G15: 70 g listed), so they are not directly comparable.
Brightness and throw
The Klarus G15 is rated at 4,200 lm; we have no published maximum for the Convoy S21E. Output for the Convoy S21E depends on the LED option chosen.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Convoy S21E was from $27.99 at flashlightgo.com and the Klarus G15 $79.95 at batteryjunction.com, so the Convoy S21E cost $51.96 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 Convoy S21E if you want a shorter light (4.6 mm shorter). On the specs we track, the Convoy S21E is ahead or level everywhere; the Klarus G15 makes sense mainly if its price, interface or a feature we don't track suits you better. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Convoy S21E Check price ↗ Klarus G15
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S21E vs G15 FAQ
Which is smaller, the Convoy S21E or the Klarus G15?
The Convoy S21E is the shorter light: 116.4 mm (4.58 in) against 121 mm (4.76 in), a difference of 4.6 mm (4%). At their widest points they are about the same (27.3 vs 27 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; Klarus G15: 70 g listed), so they are not directly comparable.
Which is cheaper, the Convoy S21E or the Klarus G15?
When we checked on Nov 4, 2026, the Convoy S21E was from $27.99 at flashlightgo.com and the Klarus G15 $79.95 at batteryjunction.com, so the Convoy S21E cost $51.96 less. Prices change often, so check the current price before you buy.
Do the Convoy S21E and Klarus G15 use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Convoy S21E with similar lights
Compare Klarus G15 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.
- Klarus G15: 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 $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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