Model comparison
SUNMI SL121+ (2.13") or ZKONG Blade ZKC21B (2.13")?
Both models sit in the same display and colour class. The table below shows only the fields where they differ — identical fields are omitted because they do not help you decide.
SUNMI
SUNMI SL121+ (2.13")
2,13" 3 colours Entry level
Kısmen doğrulandı Last checked: 2026-08-13
Product page ZKONG
ZKONG Blade ZKC21B (2.13")
2,13" 3 colours Entry level
Kısmen doğrulandı Last checked: 2026-10-11
Product page Verified differences
| Field | SUNMI SL121+ (2.13") | ZKONG Blade ZKC21B (2.13") |
|---|---|---|
| Display technology | Üç renkli e-paper (BWR) | İnce gövdeli e-paper (BWR) |
| LED colours | None | 3 |
Differences resting on estimated data
In these rows at least one side was not published by the manufacturer and is estimated from the class average. If your decision rests on them, ask the manufacturer for written confirmation.
| Field | SUNMI SL121+ (2.13") | ZKONG Blade ZKC21B (2.13") |
|---|---|---|
| Ingress protection | IP54 estimated | IPXX estimated |
| Thickness | 11 mm estimated | 9 mm estimated |
| Weight | 28 g estimated | 24 g estimated |
Where they match
These two models share a size band and colour capability. There is no meaningful difference in the fields below, so the choice cannot be made on them.
Display size: 2,13"Resolution: 250×122Full refresh time: 4 snClaimed battery life: 5 yearsCommunications: Bluetooth LE 5.xMinimum operating temperature: 0 °CEnvironmental class: Standard retailNFC: YesPrice band: EconomySegment: Entry level
Which one fits you? A spec table alone cannot decide this — the answer depends on your store count, the aisle you will use it in and your existing systems. We supply both models; send us your scope and we will tell you which fits, and why.