Convoy S21E vs Nitecore EDC33 size comparison
The Nitecore EDC33 is 0.8 mm (0.03 in) shorter than the Convoy S21E, and 1.9 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Nitecore EDC33 is 0.8 mm (0.03 in) shorter than the Convoy S21E, and 1.9 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Convoy S21E Check price ↗ | Nitecore EDC33 Check price ↗ | |
| Length | 116.4 mm (4.58 in) | 115.6 mm (4.55 in)−0.8 mm |
| Head / width | 27.3 mm (1.07 in) | 25.4 mm (1.00 in)−1.9 mm |
| Body | 27.3 mm (1.07 in) | 24 mm (0.94 in)−3.3 mm |
| Weight | 88 g without battery | 121 g with battery |
| Battery | 21700 | 18650 (built-in) |
| Max output | — | 4,000 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | from $27.99 at flashlightgo.com, as of Nov 4, 2026 | $69.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Output depends on LED option | charger.nitecore.com sourced 127 g with clip |
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S21E vs EDC33: how they differ
Size and weight
The Nitecore EDC33 is the shorter light: 115.6 mm (4.55 in) against 116.4 mm (4.58 in), a difference of 0.8 mm (1%). At its widest point the Nitecore EDC33 is 1.9 mm slimmer (25.4 vs 27.3 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; Nitecore EDC33: 121 g with battery), so they are not directly comparable.
Brightness and throw
The Nitecore EDC33 is rated at 4,000 lm; we have no published maximum for the Convoy S21E. Output for the Convoy S21E depends on the LED option chosen.
Battery
The Convoy S21E runs on a removable 21700 battery; the Nitecore EDC33 runs on a built-in rechargeable battery (18650). Only the Convoy S21E lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Convoy S21E was from $27.99 at flashlightgo.com and the Nitecore EDC33 $69.95 at batteryjunction.com, so the Convoy S21E cost $41.96 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 S21E if you want a removable cell you can swap. Choose the Nitecore EDC33 if you want a slimmer profile (1.9 mm narrower) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Convoy S21E Check price ↗ Nitecore EDC33
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
S21E vs EDC33 FAQ
Which is smaller, the Convoy S21E or the Nitecore EDC33?
The Nitecore EDC33 is the shorter light: 115.6 mm (4.55 in) against 116.4 mm (4.58 in), a difference of 0.8 mm (1%). At its widest point the Nitecore EDC33 is 1.9 mm slimmer (25.4 vs 27.3 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; Nitecore EDC33: 121 g with battery), so they are not directly comparable.
Which is cheaper, the Convoy S21E or the Nitecore EDC33?
When we checked on Nov 4, 2026, the Convoy S21E was from $27.99 at flashlightgo.com and the Nitecore EDC33 $69.95 at batteryjunction.com, so the Convoy S21E cost $41.96 less. Prices change often, so check the current price before you buy.
Do the Convoy S21E and Nitecore EDC33 use the same battery?
The Convoy S21E runs on a removable 21700 battery; the Nitecore EDC33 runs on a built-in rechargeable battery (18650). Only the Convoy S21E lets you swap in a charged spare.
Compare Convoy S21E with similar lights
Compare Nitecore EDC33 with similar lights
More
Sources
- Convoy S21E: specs from manufacturer published specs as listed by flashlightgo.com. Price from $27.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- Nitecore EDC33: specs from Nitecore product page (manufacturer). Price $69.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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