Convoy C8+ vs Convoy M21H size comparison
The Convoy M21H is 11.2 mm (0.44 in) shorter than the Convoy C8+, and 4.5 mm narrower at its widest point.
The Convoy M21H is 11.2 mm (0.44 in) shorter than the Convoy C8+, and 4.5 mm narrower at its widest point.
Dimensions
| Convoy C8+ Check price ↗ | Convoy M21H Check price ↗ | |
| Length | 142 mm (5.59 in) | 130.8 mm (5.15 in)−11.2 mm |
| Head / width | 44.5 mm (1.75 in) | 40 mm (1.57 in)−4.5 mm |
| Body | 25.2 mm (0.99 in) | 27 mm (1.06 in)+1.8 mm |
| Tail | — | 28.5 mm (1.12 in) |
| Weight | 145 g listed | — |
| Battery | 18650 | 21700 |
| Max output | — | — |
| Throw | — | — |
| Type | EDC | EDC |
| Price | from $24.99 at flashlightgo.com, as of Nov 4, 2026 | from $44.95 at nealsgadgets.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Output depends on LED option | nealsgadgets.com sourced |
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C8+ vs M21H: how they differ
Size and weight
The Convoy M21H is the shorter light: 130.8 mm (5.15 in) against 142 mm (5.59 in), a difference of 11.2 mm (8%). At its widest point the Convoy M21H is 4.5 mm slimmer (40 vs 44.5 mm).
Brightness and throw
Output for the Convoy C8+ depends on the LED option chosen.
Battery
The Convoy C8+ runs on a removable 18650 battery; the Convoy M21H runs on a removable 21700 battery. For scale, a 18650 cell is about 18 × 65 mm and a 21700 about 21 × 70 mm (nominal).
Price
When we checked on Nov 4, 2026, the Convoy C8+ was from $24.99 at flashlightgo.com and the Convoy M21H from $44.95 at nealsgadgets.com, so the Convoy C8+ cost $19.96 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 M21H if you want a shorter light (11.2 mm shorter) and a slimmer profile (4.5 mm narrower). On the specs we track, the Convoy M21H is ahead or level everywhere; the Convoy C8+ 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 C8+ Check price ↗ Convoy M21H
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C8+ vs M21H FAQ
Which is smaller, the Convoy C8+ or the Convoy M21H?
The Convoy M21H is the shorter light: 130.8 mm (5.15 in) against 142 mm (5.59 in), a difference of 11.2 mm (8%). At its widest point the Convoy M21H is 4.5 mm slimmer (40 vs 44.5 mm).
Which is cheaper, the Convoy C8+ or the Convoy M21H?
When we checked on Nov 4, 2026, the Convoy C8+ was from $24.99 at flashlightgo.com and the Convoy M21H from $44.95 at nealsgadgets.com, so the Convoy C8+ cost $19.96 less. Prices change often, so check the current price before you buy.
Do the Convoy C8+ and Convoy M21H use the same battery?
The Convoy C8+ runs on a removable 18650 battery; the Convoy M21H runs on a removable 21700 battery. For scale, a 18650 cell is about 18 × 65 mm and a 21700 about 21 × 70 mm (nominal).
Compare Convoy C8+ with similar lights
Compare Convoy M21H with similar lights
More
Sources
- Convoy C8+: specs from manufacturer published specs as listed by flashlightgo.com. Price from $24.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- Convoy M21H: specs from manufacturer published specs as listed by nealsgadgets.com. Price from $44.95 from nealsgadgets.com, checked Nov 4, 2026; prices change often.
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