Honeywell PX940 vs Zebra ZD421
Side-by-side comparison of barcode printers specs, hardware, and features to help you pick the right one for your use case.

High-performance industrial printer with ±0.2mm precision, color touchscreen, optional integrated barcode verifier, ideal for strict compliance environments.

Zebra's next-generation desktop printer with built-in Print DNA smart software suite, multiple connectivity options, easy operation and enhanced security.
Which one should you pick?
Both Honeywell PX940 and Zebra ZD421 are proven barcode printers options sold through JUNJI as an authorized distributor. Honeywell PX940 suits users who prioritize premium durability and industry certifications. Zebra ZD421 is a better fit for large-scale deployments needing vendor parity. Request a quote and we'll match you to the exact configuration for your workflow.
Full spec comparison
| Specification | Honeywell PX940 | Zebra ZD421 |
|---|---|---|
| Print Method | Direct Thermal / Thermal Transfer | Direct Thermal / Thermal Transfer |
| Resolution | 8 dots/mm / 11.8 dots/mm | 8 dots/mm / 12 dots/mm |
| Print Speed | 203 dpi: 50 – 350 mm/s (2 – 14 ips); 300 dpi: 50 – 300 mm/s (2 – 12 ips) | 6 ips / 4 ips |
| Print Width | 203 dpi: 108 mm (4.25"); 300 dpi: 105.7 mm (4.16") | 203 dpi: 104 mm (4.09"); 300 dpi: 108 mm (4.27") |
| Max Print Length | 203 dpi: 4.8 m (15.75 ft); 300 dpi: 2.2 m (7.22 ft) | 991 mm (39") |
| CPU | Dual-core 1 GB processor (ARM Cortex-A9) | — |
| Memory | FAT16/FAT32 | 256 MB SDRAM / 512 MB Flash |
| Sensors | Gap | Multi-point transmissive + full-width reflective + print head opening sensor |
| Verification Grade | ANSI level 1 – 4; 1D barcode complies with ISO/IEC 15146-2016, 2D barcode complies with ISO/IEC 15415-2011; scanning resolution 600 dpi; maximum verification speed 100 mm/s; unqualified labels are automatically discarded and reprinted | — |
| Media Types | Label spacing/black mark/hangtag/punch/notch/continuous paper (rolled or folded) | Roll or folded sheet: labels (die-cut or continuous, thermal or thermal transfer)/tags/receipt paper (continuous, thermal)/wristbands |
| Media Width | 20 – 114 mm (0.79" – 4.5") | ZD421t: 15 – 112 mm (0.585 – 4.41"); ZD421c: 15 – 118 mm (0.585 – 4.65"); ZD421d: 15 – 108 mm (0.585 – 4.25") |
| Media Roll OD | Max 212.7 mm (8.375") | Max 127 mm (5") |
| Media Core | 76 mm (3") | Standard 12.7 / 25 mm (0.5" / 1"); optional adapter 38.1 / 50.8 / 76 mm (1.5" / 2" / 3") |
| Ribbon Length | Maximum 450 m (1,476 ft), 80 mm (3.15") outer diameter | Roll: 300 m or 74 m; Cartridge: 74 m |
| Ribbon Width | 51 – 110 mm (2.0" – 4.33"), 25 mm (1") center | Roll: 33.8 – 109.2 mm (1.33" – 4.3"); Cartridge: 109.2 mm (4.3") |
| Interface | Dual USB 2.0 Host + USB 2.0 Device + Ethernet 10/100 + RS-232 (115.2 KB/s) + Static NFC tag + Bluetooth | Standard USB 2.0 + USB Host + Bluetooth LE; optional 10/100 Ethernet + RS-232 Serial + Wi-Fi 802.11ac + Bluetooth 4.1 |
| Programming Language | Fingerprint (FP) / Direct Protocol (DP) / IPL / ZSim2 (ZPL-II) / DPL / XML (SAP AII, Oracle WMS) / C# | ZPL II / EPL2 / Link-OS |
| Display | 3.5" full-color touch LCD (multiple languages including Traditional Chinese) | — |
| Construction | Sturdy all-metal printing mechanism + foldable transparent media door + tool-less replacement of print head/roller | — |
| Certification | ENERGY STAR 2.0 / RoHS / CE (EN55032 Class A) / FCC Class A | ENERGY STAR, meets Energy Efficiency Level VI |
| Power | 200 W PFC power supply; AC 100 – 240 V, 45 – 65 Hz | External transformer 100-240 VAC 50-60 Hz, output 24 VDC 2.5A |
| Dimensions / Weight | 506 × 398.7 × 261 mm (19.92" × 15.70" × 10.28") / 23 – 23.5 kg (50.7 – 51.8 lbs) | — |
| Weight | — | Thermal transfer: 2.05 kg; Thermal: 1.35 kg; Ribbon cartridge: 2.3 kg |
| Dimensions | — | Thermal transfer: 267 × 202 × 189 mm; Thermal: 220.8 × 177.5 × 150.7 mm; Ribbon cartridge: 254 × 202 × 177 mm |
Differences highlighted. Data source: JUNJI product catalog (24 spec rows compared).
