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Deal.ai › Zebra
Zebra
Zebra ZD421 Thermal Shipping Label Printer 4"

Zebra ZD421 Thermal Shipping Label Printer 4"

Best price now

$466.36at BarcodeGiantChecked 35 min ago

22% under what the other stores charge

Compared across 9 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $466.36 at BarcodeGiant (checked Nov 12, 2026).
  • Checked at 9 stores.

Our take on the Zebra ZD421 Thermal Shipping Label Printer 4"

The Zebra ZD421 is a desktop thermal label printer built for 4-inch shipping labels at 203 DPI. It handles both direct thermal printing, which needs no ink or ribbon, and thermal transfer with a ribbon for longer-lasting labels. Connectivity is unusually broad for this class: USB, Ethernet, Wi-Fi and NFC tap-to-pair. It suits small warehouses, e-commerce sellers and offices printing carrier labels, where it competes with Zebra's own ZD230 and ZD621 and with consumer-grade printers from Rollo and Brother. Owners rate Zebra's build and driver support highly; the main complaints are setup friction on wireless networks and the cost of ribbons if you print thermal transfer.

Best forSmall warehouses and e-commerce sellers printing 4x6 shipping labelsOffices shipping with UPS, USPS or FedExUsers who want wired and wireless network printing in one unitBuyers who need labels that resist heat and sunlight
Pros
  • 203 DPI resolution is sharp enough for barcodes and carrier labels
  • Direct thermal mode needs no ink or ribbon
  • USB, Ethernet, Wi-Fi and NFC cover most network setups
  • Drop-in ribbon loading is quick to swap
  • Zebra's driver and label software support is mature
  • Rugged desktop build for steady daily volume
Cons
  • Thermal transfer ribbons add ongoing cost
  • Wireless setup can take several attempts
  • 203 DPI is below the 300 DPI option for tiny print
  • Bulkier than compact consumer label printers
  • Media and ribbon must match the printer's spec

Zebra ZD421 Thermal Shipping Label Printer 4" prices at every store

  • BarcodeGiantNew

    In stock

    $466.36Free shippingChecked 35 min ago
    Visit BarcodeGiant
  • POSMicro.comNew

    In stock

    $525.79Free shippingChecked 35 min ago
    Visit POSMicro.com
  • POSGlobal.comNew

    In stock

    $579.86Free shippingChecked 35 min ago
    Visit POSGlobal.com
  • SHI InternationalNew

    In stock

    $595.70Free shippingChecked 35 min ago
    Visit SHI International
  • Link Plus ShopNew

    In stock

    $699.99Checked 35 min ago
    Visit Link Plus Shop
  • W.B. MasonNew

    In stock

    $716.48Checked 35 min ago
    Visit W.B. Mason
  • Benchmark IndustrialNew

    In stock

    $795.00Free shippingChecked 35 min ago
    Visit Benchmark Industrial
  • Buy Router SwitchNew

    In stock

    $1,455.00Free shippingChecked 35 min ago
    Visit Buy Router Switch
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $475.00Free shippingChecked 35 min ago
    Visit Amazon

Store links may earn us a commission.

Zebra ZD421 Thermal Shipping Label Printer 4" price history

Lowest price we've seen: $466.36 on Nov 13 at BarcodeGiant. Tracked across 8 stores since Nov 13.

What reviewers say

Owners of Zebra desktop printers generally praise reliability, print quality and driver support. Complaints center on network setup and ribbon costs rather than the hardware itself.

What people mention
  • Print qualityPraisedBarcodes and carrier labels come out sharp and scannable at 203 DPI.
  • ConnectivityMixedUSB and Ethernet work well, but wireless setup is often reported as fiddly.
  • BuildPraisedOwners describe the unit as solid and suited to daily shipping volume.
  • Ribbon costCriticisedThermal transfer ribbons are an ongoing expense compared with direct thermal labels.
  • SetupMixedDriver and media calibration take some patience for first-time users.

About the Zebra ZD421 Thermal Shipping Label Printer 4"

The Zebra ZD421 is a 4-inch thermal transfer label printer for shipping labels. It prints at 203 DPI and needs no ink. It handles 4x6 labels, the size used for UPS, USPS and FedEx shipments.

It connects by Wi-Fi, USB or Ethernet, and supports tap-to-pair NFC. Ribbons drop in easily when they need to be changed.

Brand
Zebra
Model
ZD421
Print width
4 inches
Print method
Thermal transfer
Resolution
203 DPI
Label size
4x6
Connectivity
Wireless, Wi-Fi, USB, Ethernet, NFC tap to pair
Ribbon
Easy drop-in ribbon
Ink
None required
Carriers
UPS, USPS, FedEx
Warranty
1 year

Questions and answers

Do I need ink or a ribbon?
No ink is used. In direct thermal mode it prints on thermal labels with no ribbon. Thermal transfer mode uses a ribbon for labels that must last longer.
What label size does it print?
It is a 4-inch printer, so it handles standard 4x6 shipping labels and narrower rolls within that width.
Can it connect to Wi-Fi?
Yes. It supports Wi-Fi alongside USB and Ethernet, plus NFC tap-to-pair for compatible devices.
Is 203 DPI enough for shipping labels?
Yes for carrier labels and barcodes. A 300 DPI version exists if you print very small text or dense codes.
Does it work with UPS, USPS and FedEx labels?
Yes. It prints standard 4x6 carrier labels from their web tools and shipping software.
Direct thermal or thermal transfer?
Direct thermal is simpler and needs no ribbon. Choose thermal transfer if labels face heat, sunlight or long storage.
Where is the Zebra ZD421 Thermal Shipping Label Printer 4" cheapest?
At BarcodeGiant, for $466.36, 22% under what the other stores charge, as of our latest check.
Where can I buy the Zebra ZD421 Thermal Shipping Label Printer 4"?
9 stores we checked sell it, including Link Plus Shop, Amazon, BarcodeGiant, POSMicro.com, POSGlobal.com.

Stores we've priced the Zebra ZD421 Thermal Shipping Label Printer 4" at

  • SHI International deals and prices

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