Taking card payments at a market stall is a different problem from taking them in a shop. You can’t rely on WiFi. Your phone battery is a liability. If the reader goes down mid-queue on a Saturday morning, you lose the sale and the next three customers who walk off frustrated.
The right card reader for a market trader is reliable first, cheap second.
Here’s what works.
What market traders need from a card reader
A reader with its own 4G SIM rather than Bluetooth. Readers that pair with your phone depend on your phone’s signal. On a crowded market with hundreds of people all doing the same thing, that signal degrades fast. Standalone readers with a built-in SIM are more reliable.
Long battery life. A typical Saturday market runs six to eight hours. Some readers, especially small Bluetooth dongles, won’t last that long under continuous use.
Durability. It’ll get dropped. It’ll get rained on. It’ll sit in a bag with your float and your lunch. Build quality isn’t glamorous but it’s worth paying attention to.
Fast transactions. A queue at your stall is a good problem to have. A slow reader turns it into a bad one. Contactless should complete in under three seconds.
Simple pricing. Pay-as-you-go with no monthly fee suits market traders whose income varies week to week.
The best card readers for market traders
1. TakePayments Plus
Cost: Monthly rental from around £25/month (tailored pricing) Transaction fees: Tailored rates, typically lower than flat-rate providers Settlement: Next business day
The Takepayments Plus is a portable terminal with a built-in receipt printer. More expensive than the others, but if you need to hand customers a physical receipt — antiques markets, food markets with allergen labelling — it’s the only mainstream option that doesn’t require a separate printer.
Runs on 4G and WiFi. Battery life is around eight hours. It requires a contract (typically 12 months), which is a downside for seasonal traders. Worth considering once your turnover is consistent and you’ve outgrown the no-contract options.
2. myPOS Go 2
Cost: £29 upfront, no monthly fee Transaction fees: From 1.1% + 7p (for turnover under £10k/month) Settlement: Instant, into a built-in Visa account
The myPOS Go 2 is a fully standalone device — no phone required — with a built-in 4G SIM that roams across networks to find signal. Battery lasts around eight hours under normal use.
The big differentiator is settlement. Rather than waiting one to three days for money to reach your bank, myPOS settles into a dedicated Visa business account instantly. You can spend it immediately or transfer to your main bank account. For traders covering stock costs or fuel on the day, this actually matters.
It sends digital receipts via SMS or email directly from the device, so you don’t need a phone or printer. At £29, it’s cheap enough to buy as a backup even if you primarily use something else.
The downside is the fee structure. At 1.1% + 7p, on a £20 item you’re paying around 29p. On higher-value items it’s fine. On a high-volume stall selling lots of low-value goods, those pennies add up — worth running the numbers for your specific average transaction.
3. SumUp Solo
Cost: £79 upfront, no monthly fee Transaction fees: 1.69% Settlement: 1–3 business days
The SumUp Solo is a standalone terminal with a touchscreen, long battery life (around ten hours), and a built-in SIM. It doesn’t need a phone. Slightly more expensive than the myPOS Go 2 upfront, but the 1.69% flat rate is clean and easy to track across a day’s trading.
Receipts are sent digitally. There’s a basic sales dashboard in the app. It’s a step up from the SumUp Air (which needs a phone) and works well for traders who want a proper-feeling device rather than a phone accessory.
Settlement takes one to three business days, which is fine if you’re not running tight on cash between markets.
4. Square Card Reader 2
Cost: £19 + VAT upfront, no monthly fee Transaction fees: 1.75% Settlement: 1–2 business days
The Square Reader 2 is the easiest card reader to set up in the UK. Download the app, pair the reader, start taking payments. It works via Bluetooth with your phone, which means it depends on your phone’s data — a real limitation outdoors.
For low-volume stalls or traders in decent-signal locations, it’s hard to beat the price point. The Square app is also the most capable for inventory management, tipping, receipts and reporting. If you sell online as well, Square’s inventory syncs across channels.
The reason not to choose it for market trading is signal dependency. If your signal is unreliable, you’ll lose transactions. Test it at your specific location before relying on it for a full trading day.
5. Zettle Reader 2
Cost: £29 + VAT per reader Transaction fees: 1.75% Settlement: 1–2 business days
Zettle (owned by PayPal) is a close competitor to Square. Same pricing, similar app experience, and it pairs via Bluetooth with your phone. The reader has slightly better build quality for outdoor use — IP21 rated, which means some protection against dripping water.
Settlement connects to your existing PayPal account, which is useful if you already use PayPal for online sales.
Like Square, it depends on your phone’s data. Not ideal for locations with poor signal.
A word on offline mode
Some providers mention offline mode — storing transactions when there’s no signal and processing them later. It sounds useful but has a significant catch: you won’t know if a card is declined until the connection restores. By then the customer has left. If a fraud check fails, you bear the loss.
Offline mode is a last resort, not a primary strategy. Better to use a reader with its own 4G SIM than to depend on it.
A portable 4G router (a “MiFi” device) is a useful backup if you use a phone-dependent reader. They cost around £30–60 and create a dedicated hotspot that performs better than a personal hotspot on a busy site.
Quick comparison
| Reader | Upfront cost | Monthly fee | Transaction fee | Needs phone? | Own 4G SIM? |
|---|---|---|---|---|---|
| myPOS Go 2 | £29 | None | 1.1% + 7p | No | Yes |
| SumUp Solo | £79 | None | 1.69% | No | Yes |
| Square Reader 2 | £19 + VAT | None | 1.75% | Yes | No |
| Zettle Reader 2 | £29 + VAT | None | 1.75% | Yes | No |
| Takepayments Plus | Free on contract | ~£25/month | Tailored | No | Yes |
Our pick
For most market traders, myPOS Go 2 is the practical choice. Cheapest standalone option, works without a phone, settles instantly, and the 4G SIM handles patchy signal better than Bluetooth alternatives. At £29, it’s low risk.
If you already use Square or SumUp for other parts of your business and your market location has reasonable signal, stick with what you have and save the hassle of a separate device.
For a broader look at the options, see our guide to best card readers for small businesses and our guide to choosing the right card reader.
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