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Compare your models.
Source-linked measurements, matching labels, and visible unknowns.
A shared value does not establish installation fit or parts compatibility. Check measurement definitions and source test conditions.
| Specification | ZebraZD421 | ZebraZT231 |
|---|---|---|
| Automatic duplex output | NoSource | NoSource |
| Color capability | MonochromeSource | MonochromeSource |
| Declared print speed | 60 ipm or mppmSource | 90 ipm or mppmSource |
| Default sleep delay | 9 minSource | 5 minSource |
| ENERGY STAR partner | Zebra Technologies CorporationSource | Zebra Technologies CorporationSource |
| Marking technology | Direct Thermal (DT)Source | Thermal Transfer (TT)Source |
| Off-mode power | 0.11 WSource | 0.12 WSource |
| Page format class | SmallSource | SmallSource |
| Product type | PrintersSource | PrintersSource |
| Sleep-mode power | 3.58 WSource | 4.86 WSource |