If you've been printing shipping labels on A4 paper, cutting them out and taping them to parcels, or relying on Royal Mail to provide thermal labels with your account, there's a good reason to reconsider your setup. Since 19 January 2026, Royal Mail has stopped supplying free thermal label rolls to business customers, introducing a charge of £4.69 plus VAT per roll with a reduced order limit. For anyone printing labels daily, that's a cost that wasn't there before, and it's prompted a lot of small sellers to look at getting their own thermal printer for the first time.
This guide covers what to look for in a thermal label printer, how the main brands compare, and which type of printer suits different selling volumes, whether you're shipping a handful of Vinted parcels a week or running a busier eBay or Shopify operation.
Do you actually need a thermal printer?
If you're sending fewer than five or ten parcels a week, the cost of a thermal printer might take a while to pay back compared to printing on A4 and using a roll of clear tape to seal the label on. For anyone sending more than that regularly, the time saved on every single label adds up quickly, and the print quality, particularly for barcodes, is consistently better with thermal printing.
Beyond convenience, there's now a direct cost argument too. With Royal Mail charging for thermal label rolls, buying your own labels from a packaging supplier and using your own printer is often the cheaper route, especially once you're shipping in any volume. We've covered the detail of the Royal Mail change and what it means for sellers in our Royal Mail 4x6 thermal labels guide.
What to look for in a thermal label printer
Before getting into specific brands, here's what actually matters when choosing a printer.
Direct thermal, not thermal transfer
For shipping labels, you want a direct thermal printer. These use heat to print directly onto heat-sensitive label material with no ink, toner or ribbon required. Thermal transfer printers use a ribbon and are aimed at applications needing long-term label durability, which shipping labels don't require. Direct thermal is cheaper to run and simpler to maintain, and it's what almost every small business and reseller setup uses.
4x6 inch (100x150mm) compatibility
This is the standard UK courier label size, used by Royal Mail, Evri, DPD and most other services. Make sure any printer you're considering supports 4 inch wide direct thermal media. Nearly all dedicated label printers do, but it's worth confirming before buying, particularly with budget models.
Connection type
Printers connect via USB, Bluetooth, Wi-Fi, or a combination. USB is the most universal and reliable, working with any computer without configuration. Bluetooth is useful if you print from a phone or tablet, which suits Vinted and Depop sellers who often manage their selling entirely from a mobile device. Wi-Fi printers can sit anywhere in a room without being tethered to a computer, which is more relevant for busier setups with a dedicated packing station.
Print resolution (DPI)
Printers are commonly available in 203 DPI or 300 DPI. 203 DPI is standard and produces perfectly readable barcodes and text for shipping labels. 300 DPI gives sharper print quality, which matters more for small text, detailed logos, or labels that will be scanned by very sensitive equipment. For standard courier shipping labels, 203 DPI is more than sufficient, and most budget and mid-range printers use this resolution.
Roll feed and core size
Check the maximum roll diameter the printer accepts and the core size it's designed for, typically 1 inch (25mm) or 1.5 inch (38mm). Most direct thermal labels for UK shipping, including the 4x6 labels stocked by Mr Bags, use a 1 inch core, which is compatible with the vast majority of desktop label printers.
Platform compatibility
Most direct thermal printers work as standard printers recognised by Windows and Mac, which means they'll work with any platform that can print to a standard printer, including Royal Mail Click and Drop, Vinted's label generation, eBay, Etsy and Shopify. Some printers also have dedicated apps or software for managing print queues and templates, which can be useful but isn't essential for most sellers.
How the main brands compare
There are a handful of brands that dominate the small business and reseller thermal printer market in the UK. Here's how they generally compare.
Rollo
Rollo is one of the most popular choices among small business sellers on eBay, Etsy, Shopify and Amazon. It's known for straightforward USB setup, broad platform compatibility, and a strong community of users sharing setup guides and troubleshooting. Rollo printers tend to sit at the budget to mid-range end of the market and are a common recommendation for sellers buying their first dedicated label printer.
Zebra
Zebra is the industrial-grade option. Their printers, such as the GK420 and ZD series, are built for warehouses and fulfilment centres and have a reputation for reliability over years of heavy daily use. They sit at a higher price point than budget options, but the build quality and longevity reflect that. For a small business scaling up to higher volumes, a Zebra printer is a common upgrade path once a budget printer starts to feel like a bottleneck.
Dymo
Dymo's label printers are well supported on both Windows and Mac, and the brand's own software is generally considered polished and easy to use. The trade-off with Dymo is that some models work best with Dymo's own labels, which can be pricier than generic alternatives, and using non-Dymo labels can be more restrictive depending on the model. Worth checking compatibility with generic 4x6 direct thermal labels before committing if cost per label matters to you.
Munbyn
Munbyn has become a popular budget option in recent years, with models that offer good print quality and reasonable build quality at a lower price point than Rollo or Zebra. They're a sensible choice for sellers who want to try thermal printing without a large upfront investment, and many models support both Windows and Mac as well as Linux and ChromeOS, which is broader compatibility than some competitors offer.
Which printer suits your selling volume?
Here's a practical way to think about it based on how many parcels you're sending.
A few parcels a week (casual Vinted or Depop sellers)
A budget printer from Munbyn or an entry-level Rollo model is more than adequate. Look for USB connectivity for simplicity, or Bluetooth if you manage your selling entirely from a phone. At this volume, the printer will pay for itself in time saved and improved presentation fairly quickly, even before factoring in the cost of Royal Mail's thermal labels.
Regular selling, tens of parcels a week (eBay, Etsy, growing Shopify stores)
A mid-range Rollo or Dymo printer is a good fit here. USB or Wi-Fi connectivity becomes more useful at this volume, particularly if multiple people in a household or small team are printing labels. Check the running cost of labels for whichever printer you choose, as some proprietary label ecosystems cost more per label over time even if the printer itself is cheaper upfront.
High volume daily dispatch (established e-commerce businesses)
A Zebra printer is worth the investment at this stage. The reliability and print speed of an industrial-grade printer becomes noticeable when you're printing dozens or hundreds of labels a day, and the running costs over years of use are lower because the printer is built to handle that volume without needing frequent replacement.
Labels: the part that doesn't change
Whichever printer you choose, you'll need a supply of 4x6 (100x150mm) direct thermal labels compatible with it. Nearly all of the printers covered here, across Rollo, Zebra, Dymo and Munbyn, work with standard generic direct thermal labels at this size, provided the core size matches your printer's roll holder.
Our white thermal labels in 4x6 inch are supplied with a 1 inch core and a hot-melt adhesive that bonds well to cardboard, poly mailers and most plastic packaging, making them suitable for the vast majority of desktop thermal printers used by UK sellers. For higher-volume operations, our fanfold 4x6 labels reduce how often you need to change rolls during a packing session.
If you'd like to colour-code orders by priority, return status or fulfilment lane, we also stock coloured thermal labels in 4x6 inch, which print on the same printers as standard white labels with no settings changes needed.
Switching away from Royal Mail's labels
If the change to Royal Mail's thermal label charges is what's prompted you to look at this, the good news is that any direct thermal 4x6 label compatible with your printer will work with Royal Mail Click and Drop, as well as Evri, DPD and other UK couriers. There's no requirement to use labels supplied by Royal Mail specifically; the format is standardised across the industry, which is exactly why switching to your own printer and label supply is straightforward.
You can browse the full range of thermal labels, including standard, fanfold and coloured options, on our thermal labels page. If you're not sure which label format matches your printer, get in touch via WhatsApp at +44 7450 981838 and we can help you work it out.
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