Convoy M21H vs SureFire G2X Pro size comparison
The SureFire G2X Pro is 1.3 mm (0.05 in) longer than the Convoy M21H, and 8.3 mm narrower at its widest point.
The SureFire G2X Pro is 1.3 mm (0.05 in) longer than the Convoy M21H, and 8.3 mm narrower at its widest point.
Dimensions
| Convoy M21H Check price ↗ | SureFire G2X Pro Check price ↗ | |
| Length | 130.8 mm (5.15 in) | 132.1 mm (5.20 in)+1.3 mm |
| Head / width | 40 mm (1.57 in) | 31.8 mm (1.25 in)−8.3 mm |
| Body | 27 mm (1.06 in) | 25.4 mm (1.00 in)−1.6 mm |
| Tail | 28.5 mm (1.12 in) | — |
| Weight | — | 124.7 g with batteries |
| Battery | 21700 | 2x CR123A |
| Max output | — | 600 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | from $44.95 at nealsgadgets.com, as of Nov 4, 2026 | $99.00 at batteryjunction.com, as of Nov 4, 2026 |
| Source | nealsgadgets.com sourced | batteryjunction.com sourced |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
M21H vs G2X Pro: how they differ
Size and weight
The Convoy M21H is the shorter light: 130.8 mm (5.15 in) against 132.1 mm (5.20 in), a difference of 1.3 mm (1%). At its widest point the SureFire G2X Pro is 8.3 mm slimmer (31.8 vs 40 mm).
Brightness and throw
The SureFire G2X Pro is rated at 600 lm; we have no published maximum for the Convoy M21H.
Battery
The Convoy M21H runs on a removable 21700 battery; the SureFire G2X Pro runs on removable 2x CR123A batteries. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Price
When we checked on Nov 4, 2026, the Convoy M21H was from $44.95 at nealsgadgets.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the Convoy M21H cost $54.05 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 SureFire G2X Pro if you want a slimmer profile (8.3 mm narrower). On the specs we track, the SureFire G2X Pro 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 ↗ SureFire G2X Pro
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
M21H vs G2X Pro FAQ
Which is smaller, the Convoy M21H or the SureFire G2X Pro?
The Convoy M21H is the shorter light: 130.8 mm (5.15 in) against 132.1 mm (5.20 in), a difference of 1.3 mm (1%). At its widest point the SureFire G2X Pro is 8.3 mm slimmer (31.8 vs 40 mm).
Which is cheaper, the Convoy M21H or the SureFire G2X Pro?
When we checked on Nov 4, 2026, the Convoy M21H was from $44.95 at nealsgadgets.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the Convoy M21H cost $54.05 less. Prices change often, so check the current price before you buy.
Do the Convoy M21H and SureFire G2X Pro use the same battery?
The Convoy M21H runs on a removable 21700 battery; the SureFire G2X Pro runs on removable 2x CR123A batteries. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Compare Convoy M21H with similar lights
Compare SureFire G2X Pro with similar lights
More
Sources
- 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.
- SureFire G2X Pro: specs from manufacturer published specs as listed by batteryjunction.com. Price $99.00 from batteryjunction.com, checked Nov 4, 2026; prices change often.
Found an error? Email [email protected] and we will fix it.