Convoy M21H vs Sofirn SC33 size comparison
The Sofirn SC33 is about the same length as the Convoy M21H, and 8 mm narrower at its widest point.
The Sofirn SC33 is about the same length as the Convoy M21H, and 8 mm narrower at its widest point.
Dimensions
| Convoy M21H Check price ↗ | Sofirn SC33 Check price ↗ | |
| Length | 130.8 mm (5.15 in) | 131 mm (5.16 in)+0.2 mm |
| Head / width | 40 mm (1.57 in) | 32 mm (1.26 in)−8 mm |
| Body | 27 mm (1.06 in) | — |
| Tail | 28.5 mm (1.12 in) | — |
| Weight | — | 110 g without battery |
| Battery | 21700 | 21700 |
| Max output | — | 5,200 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | from $44.95 at nealsgadgets.com, as of Nov 4, 2026 | from $41.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | nealsgadgets.com sourced | flashlightgo.com sourced Only head diameter listed |
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M21H vs SC33: how they differ
Size and weight
The Convoy M21H and Sofirn SC33 are the same length to within half a millimetre (130.8 mm (5.15 in)). At its widest point the Sofirn SC33 is 8 mm slimmer (32 vs 40 mm).
Brightness and throw
The Sofirn SC33 is rated at 5,200 lm; we have no published maximum for the Convoy M21H.
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 M21H was from $44.95 at nealsgadgets.com and the Sofirn SC33 from $41.99 at flashlightgo.com, so the Sofirn SC33 cost $2.96 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 Sofirn SC33 if you want a slimmer profile (8 mm narrower). On the specs we track, the Sofirn SC33 is ahead or level everywhere; the Convoy M21H 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 M21H Check price ↗ Sofirn SC33
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M21H vs SC33 FAQ
Which is smaller, the Convoy M21H or the Sofirn SC33?
The Convoy M21H and Sofirn SC33 are the same length to within half a millimetre (130.8 mm (5.15 in)). At its widest point the Sofirn SC33 is 8 mm slimmer (32 vs 40 mm).
Which is cheaper, the Convoy M21H or the Sofirn SC33?
When we checked on Nov 4, 2026, the Convoy M21H was from $44.95 at nealsgadgets.com and the Sofirn SC33 from $41.99 at flashlightgo.com, so the Sofirn SC33 cost $2.96 less. Prices change often, so check the current price before you buy.
Do the Convoy M21H and Sofirn SC33 use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Convoy M21H with similar lights
Compare Sofirn SC33 with similar lights
More
Sources
- Convoy M21H: specs from manufacturer published specs as listed by nealsgadgets.com. Drawing: outline from published specs. Price from $44.95 from nealsgadgets.com, checked Nov 4, 2026; prices change often.
- Sofirn SC33: specs from manufacturer published specs as listed by flashlightgo.com. Drawing: outline from published specs. Price from $41.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
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