Convoy M21B vs Convoy M21H size comparison
The Convoy M21H is 10.7 mm (0.42 in) shorter than the Convoy M21B, and 4.3 mm wider at its widest point.
The Convoy M21H is 10.7 mm (0.42 in) shorter than the Convoy M21B, and 4.3 mm wider at its widest point.
Dimensions
| Convoy M21B Check price ↗ | Convoy M21H Check price ↗ | |
| Length | 141.5 mm (5.57 in) | 130.8 mm (5.15 in)−10.7 mm |
| Head / width | 35.7 mm (1.41 in) | 40 mm (1.57 in)+4.3 mm |
| Body | 27.1 mm (1.07 in) | 27 mm (1.06 in)−0.1 mm |
| Tail | — | 28.5 mm (1.12 in) |
| Weight | 120 g listed | — |
| Battery | 21700 | 21700 |
| Max output | — | — |
| Throw | — | — |
| Type | EDC | EDC |
| Price | $48.99 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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M21B vs M21H: how they differ
Size and weight
The Convoy M21H is the shorter light: 130.8 mm (5.15 in) against 141.5 mm (5.57 in), a difference of 10.7 mm (8%). At its widest point the Convoy M21B is 4.3 mm slimmer (35.7 vs 40 mm).
Brightness and throw
Output for the Convoy M21B 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 M21B was $48.99 at flashlightgo.com and the Convoy M21H from $44.95 at nealsgadgets.com, so the Convoy M21H cost $4.04 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 M21B if you want a slimmer profile (4.3 mm narrower). Choose the Convoy M21H if you want a shorter light (10.7 mm shorter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Convoy M21B Check price ↗ Convoy M21H
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
M21B vs M21H FAQ
Which is smaller, the Convoy M21B or the Convoy M21H?
The Convoy M21H is the shorter light: 130.8 mm (5.15 in) against 141.5 mm (5.57 in), a difference of 10.7 mm (8%). At its widest point the Convoy M21B is 4.3 mm slimmer (35.7 vs 40 mm).
Which is cheaper, the Convoy M21B or the Convoy M21H?
When we checked on Nov 4, 2026, the Convoy M21B was $48.99 at flashlightgo.com and the Convoy M21H from $44.95 at nealsgadgets.com, so the Convoy M21H cost $4.04 less. Prices change often, so check the current price before you buy.
Do the Convoy M21B and Convoy M21H use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Convoy M21B with similar lights
Compare Convoy M21H with similar lights
More
Sources
- Convoy M21B: specs from manufacturer published specs as listed by flashlightgo.com. Price $48.99 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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