Convoy M21B vs Fenix TK16 V2.0 size comparison
The Fenix TK16 V2.0 is 1.5 mm (0.06 in) longer than the Convoy M21B, and 1.7 mm narrower at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
The Fenix TK16 V2.0 is 1.5 mm (0.06 in) longer than the Convoy M21B, and 1.7 mm narrower at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
Dimensions
| Convoy M21B Check price ↗ | Fenix TK16 V2.0 Check price ↗ | |
| Length | 141.5 mm (5.57 in) | 143 mm (5.63 in)+1.5 mm |
| Head / width | 35.7 mm (1.41 in) | 34 mm (1.34 in)−1.7 mm |
| Body | 27.1 mm (1.07 in) | 25.4 mm (1.00 in)−1.7 mm |
| Weight | 120 g listed | 112 g without battery |
| Battery | 21700 | 21700 |
| Max output | — | 3,100 lm |
| Throw | — | 380 m |
| Type | EDC | Tactical |
| Price | $48.99 at flashlightgo.com, as of Nov 4, 2026 | $99.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Output depends on LED option | fenixlighting.com sourced |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
M21B vs TK16 V2.0: how they differ
Size and weight
The Convoy M21B is the shorter light: 141.5 mm (5.57 in) against 143 mm (5.63 in), a difference of 1.5 mm (1%). At its widest point the Fenix TK16 V2.0 is 1.7 mm slimmer (34 vs 35.7 mm). Weights are published on different bases (Convoy M21B: 120 g listed; Fenix TK16 V2.0: 112 g without battery), so they are not directly comparable.
Brightness and throw
The Fenix TK16 V2.0 is rated at 3,100 lm; we have no published maximum for the Convoy M21B. 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 Fenix TK16 V2.0 $99.95 at fenixlighting.com, so the Convoy M21B cost $50.96 less. Prices change often, so check the current price before you buy.
Type
The Convoy M21B is listed as edc and the Fenix TK16 V2.0 as tactical, so they suit different jobs.
Which should you buy?
Choose the Fenix TK16 V2.0 if you want a slimmer profile (1.7 mm narrower). On the specs we track, the Fenix TK16 V2.0 is ahead or level everywhere; the Convoy M21B 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 M21B Check price ↗ Fenix TK16 V2.0
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
M21B vs TK16 V2.0 FAQ
Which is smaller, the Convoy M21B or the Fenix TK16 V2.0?
The Convoy M21B is the shorter light: 141.5 mm (5.57 in) against 143 mm (5.63 in), a difference of 1.5 mm (1%). At its widest point the Fenix TK16 V2.0 is 1.7 mm slimmer (34 vs 35.7 mm). Weights are published on different bases (Convoy M21B: 120 g listed; Fenix TK16 V2.0: 112 g without battery), so they are not directly comparable.
Which is cheaper, the Convoy M21B or the Fenix TK16 V2.0?
When we checked on Nov 4, 2026, the Convoy M21B was $48.99 at flashlightgo.com and the Fenix TK16 V2.0 $99.95 at fenixlighting.com, so the Convoy M21B cost $50.96 less. Prices change often, so check the current price before you buy.
Do the Convoy M21B and Fenix TK16 V2.0 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 Fenix TK16 V2.0 with similar lights
More
Sources
- Convoy M21B: specs from manufacturer published specs as listed by flashlightgo.com. Drawing: outline from published specs. Price $48.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- Fenix TK16 V2.0: specs from Fenix product page (manufacturer). Drawing: shape measured from manufacturer photo (fenixlighting.com), scaled to the published length and diameter. Price $99.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
Found an error? Email liambuehlerbusiness@gmail.com and we will fix it.