| Best for |
Light-industrial 4-inch labels; the lightest and smallest |
All-round 4-inch printer; 600 dpi and on-metal RFID options |
6-inch carton, drum and pallet labels |
Heavy-duty 4-inch lines and very small 600 dpi labels |
Heavy-duty 6-inch labels |
| Print width |
104 mm (4.09 in.) |
104 mm (4.09 in.) |
Up to 168 mm (6.6 in.) |
Up to 104 mm (4.09 in.) |
Up to 168 mm (6.6 in.) |
| Resolution |
203 or 300 dpi |
203, 300 or 600 dpi |
203 or 300 dpi |
203, 300 or 600 dpi |
203 or 300 dpi |
| Top speed |
Up to 305 mm/s (12 ips) at 203 dpi |
Up to 356 mm/s (14 ips) at 203 dpi |
Up to 305 mm/s (12 ips) |
Up to 356 mm/s (14 ips) |
Up to 305 mm/s (12 ips) |
| Speed at each resolution |
2-12 ips (51-305 mm/s) at 203 dpi; 2-8 ips (51-203 mm/s) at 300 dpi; in 1 in. steps |
2.4-14 ips (61-356 mm/s) at 203 dpi; 2.4-10 ips (61-254 mm/s) at 300 dpi; 1.5-4 ips (38-102 mm/s) at 600 dpi |
203 dpi: 2.4 in. to 12 in. (61-305 mm) per second; 300 dpi: 2.4 in. to 10 in. (61-254 mm) per second; in 1 in. increments |
203 dpi: 2-14 ips (51-356 mm/s); 300 dpi: 2-12 ips (51-305 mm/s); 600 dpi: 1-6 ips (25-152 mm/s); in 1 in. steps |
203 dpi: 2-12 ips (51-305 mm/s); 300 dpi: 2-8 ips (51-203 mm/s); in 1 in. steps |
| Shortest label |
Tear mode: 0.7 in/18 mm; Cutter mode: 1 in/25 mm; Peel mode: 0.5 in/13 mm |
Tear-off mode: 0.5 in. (12.7 mm); Peel mode: 0.5 in. (12.7 mm); Rewind mode: 0.5 in. (12.7 mm); Cutter: 1.00 in. (25.4 mm) |
0.5 in./12.7 mm in tear-off, peel and rewind modes; 1.00 in./25.4 mm with cutter |
203/300 dpi: rewind 6 mm, peel 13 mm, tear-off 18 mm, cutter 38 mm; 600 dpi: rewind 3 mm, peel 13 mm, tear-off 3 mm, cutter 38 mm; 600 dpi Micro Label Printer: rewind 3 mm, peel 6 mm, tear-off 3 mm (Zebra's US tech specs; no Asia Pacific edition) |
Rewind 6 mm; peel 13 mm; tear-off 18 mm; cutter 38 mm (Zebra's US tech specs; no Asia Pacific edition) |
| Media width |
0.75 in./19.4 mm to 4.50 in./114 mm |
1.00 in. (25.4 mm) to 4.50 in. (114 mm) Tear/Cutter; 1.00 in. (25.4 mm) to 4.25 in. (108 mm) Peel/Rewind |
2.00 in./51 mm to 7.0 in./178 mm tear/cutter; 2.00 in./51 mm to 6.75 in./171 mm peel/rewind |
0.79 in./20 mm to 4.5 in./114 mm; ZT610 Micro Label Printer: 0.47 in./12 mm to 4.5 in./114 mm |
ZT620: 2.0"/51 mm to 7.1"/180 mm |
| Media thickness |
0.003 in./0.076 mm to 0.010 in./0.25 mm |
0.0023 in. (0.058 mm) to 0.010 in. (0.25 mm) |
0.0023 in./0.058 mm to 0.010 in./0.25 mm |
0.003 in./0.076 mm to 0.012 in./0.305 mm (non-cutter) |
0.003 in./0.076 mm to 0.012 in./0.305 mm; 0.003 in./0.076 mm to 0.007 in./0.18 mm with cutter |
| Media roll |
8.0 in./203 mm O.D. on a 3.0 in./76 mm I.D. core; 6.0 in./152 mm O.D. on a 1.0 in./25 mm I.D. core |
8.0 in. (203 mm) O.D. on a 3 in. (76 mm) I.D. core |
8.0 in./203 mm O.D. on a 3 in./76 mm I.D. core |
8.0 in./203 mm O.D. on a 3 in./76 mm I.D. core |
8.0"/203 mm O.D. on a 3"/76 mm I.D. core |
| Ribbon |
1,476 ft./450 m |
1476 ft. (450 m) |
1476 ft./450 M |
1476'/450 m |
1476'/450 m |
| Ribbon width |
1.57 in./40 mm to 4.33 in./110 mm |
2.00 in. (51 mm) to 4.33 in. (110 mm) |
2.00 in./51 mm to 6.85 in./174 mm |
ZT610: 0.79"/20 mm to 4.33"/110 mm |
ZT620: 2.0"/51 mm to 6.7"/170 mm |
| Memory |
256 MB SDRAM memory; 256 MB on-board linear Flash memory |
RAM: 256 MB (8 MB user available) · Flash: 512 MB (64 MB user available) |
256 MB SDRAM memory (8 MB user available); 512 MB on-board linear Flash memory (64 MB user available) |
1 GB RAM memory (32 MB user available), 2 GB on-board linear Flash memory (512 MB user available) |
1 GB RAM memory (32 MB user available); 2 GB on-board linear Flash memory (512 MB user available) |
| Standard ports |
USB 2.0; RS-232 serial (DB9F); 10/100 Ethernet; USB Host; Bluetooth Low Energy; Print Touch (NFC) tag |
USB 2.0, high speed; RS-232 serial (DB9F); 10/100 Ethernet; Bluetooth 4.1; dual USB Host |
USB 2.0 high-speed; RS-232 serial (DB9F); 10/100 Ethernet; Bluetooth 4.1; dual USB Host |
Gigabit Ethernet (auto-switching 10/100/1000); USB 2.0 full speed (12 Mbps); RS-232 serial (DB9F); Bluetooth 4.1; two front-mounted USB Host ports; static NFC tag (Print Touch) |
Gigabit Ethernet (auto-switching 10/100/1000); USB 2.0 full speed (12 Mbps); RS-232 serial (DB9F); Bluetooth 4.1; two front-mounted USB Host ports; static NFC tag (Print Touch) |
| Option slots |
802.11ac Wi-Fi card; 10/100 Ethernet card (second port); applicator interface |
Dual-band 802.11ax Wi-Fi with Bluetooth 5.3; dual-band 802.11ac Wi-Fi with Bluetooth 4.2; parallel (bi-directional interface); 10/100 Ethernet; applicator interface |
Two open communication slots for internal cards: dual band 802.11ax Wi-Fi and Bluetooth 5.3; dual band 802.11ac Wi-Fi and Bluetooth 4.2; Parallel (bi-directional interface); 10/100 Ethernet; Applicator interface |
Two open communication slots to add internal cards for dual band 802.11ax Wi-Fi and Bluetooth 5.3, parallel, Ethernet, and applicator interface; IPv6 option available as an external dongle attached to a parallel port |
Two open communication slots for internal cards: dual band 802.11ax Wi-Fi and Bluetooth 5.3; parallel; Ethernet; applicator interface. IPv6 option as an external dongle attached to a parallel port |
| RFID |
Optional UHF kit, field installable |
Optional UHF encoder (EPC Gen 2 V2.1 / RAIN); on-metal kit |
UHF EPC Gen 2 V2.1 option |
Supports tags compatible with: UHF EPC Gen 2 V2.1, ISO/IEC 18000-63 and RAIN RFID protocols; user-upgradable in the field; Adaptive Encoding Technology |
UHF EPC Gen 2 V2.1 option |
| Media handling options |
Front-mount passive peel without take-up spindle; peel with liner take-up spindle (factory fitted only); front-mount guillotine cutter |
Rewind (full roll on a 3 in. core, or peel and rewind liner; factory installed); front-mount passive peel; liner take-up; front-mount guillotine cutter with catch tray; 1 in. I.D. core media supply hanger; linerless (factory model or field kit, direct thermal); automation kit with extended peel, captured media spindle and applicator card |
Rewind: internally rewinds a full roll of printed labels on a 3 in. core, or peels and rewinds liner (factory installed only); Peel: front-mount, passive peel; Liner take-up spindle; Cutter: front-mount guillotine cutter and catch tray |
Rewind: Internally rewinds a full roll of printed labels on 3" core, or peels and rewinds liner; Cutter: front-mount guillotine cutter and catch tray; ink-side-in ribbon supply spindle |
Rewind: internally rewinds a full roll of printed labels on a 3 in. core, or peels and rewinds liner; Cutter: front-mount guillotine cutter and catch tray; ink-side-in ribbon supply spindle |
| Weight |
ZT231: 20 lbs./9.1 kg; ZT231 with Liner Takeup Unit: 24 lbs./10.9 kg |
36 lb (16.33 kg) |
ZT421: 40 lbs./18.14 kg; with full rewind: 55.3 lbs./25.08 kg |
50 lbs/22.7 kg |
57.4 lbs/26 kg |
| Power supply |
Universal auto-ranging (PFC-compliant) power supply 100-240 VAC; 50-60 Hz; ENERGY STAR certified |
Auto-detectable (PFC compliant) 100-240VAC, 50-60Hz; ENERGY STAR qualified |
Auto-detectable (PFC Compliant) 100-240VAC, 50-60Hz; ENERGY STAR qualified |
Auto-detectable (PFC Compliant) 90-265 VAC, 47-63Hz, rated at 250 Watts; ENERGY STAR certified |
Auto-detectable (PFC Compliant) 90-265 VAC, 47-63 Hz, rated at 250 Watts; ENERGY STAR certified |
| Operating temperature |
Thermal transfer: 40ºF to 104ºF/5º to 40ºC; Direct thermal: 32ºF to 104ºF/0º to 40ºC |
Thermal transfer = 40º to 104ºF (5º to 40ºC); Thermal direct = 32º to 104ºF (0º to 40ºC); 20% to 85% non-condensing R.H. |
Thermal transfer: 40º F to 104º F/5º C to 40º C; Direct thermal: 32º F to 104º F/0º C to 40º C |
Thermal transfer = 40ºF to 104ºF/5ºC to 40ºC; Direct thermal = 32ºF to 104ºF/0ºC to 40ºC |
Thermal transfer: 40 °F to 104 °F/5 °C to 40 °C; Direct thermal: 32 °F to 104 °F/0 °C to 40 °C |