Our rating(4.3/5)
SumUp Solo is a unique touchscreen card terminal to fit in your pocket.
SumUp Solo is a standalone, handheld card reader with a touchscreen. For just an upfront price, it is an affordable terminal without monthly fees, commitment or a complicated setup.
  • Pros: Compact terminal. Works anywhere with 4G or WiFi. No ongoing fees. Simple to use. Holder or printer included. Works with or without POS.

  • Cons: Few on-screen features. Limited battery life without printer/charging dock.

  • Buy if: You want a stylish, pocket-sized card terminal for the till or on the go, with or without a receipt printer.

SumUp Solo and Printer on aqua-coloured background
  • SumUp Solo from £79
  • 1.69% per transaction without a subscription
  • Next-day funds in SumUp Business Account

How SumUp Solo works

SumUp is known for its user-friendly, simple card payment solutions for small businesses and sole traders alike.

The latest card terminal, SumUp Solo, is a special one: a square-shaped, standalone card reader without a physical PIN pad. Instead, it is operated exclusively via the front-facing touchscreen, like a purpose-built mobile device for card payments.

Photo: Emmanuel Charpentier (EC), Mobile Transaction

SumUp Solo unboxing

All the box contents of a SumUp Solo package.

The card reader comes with a built-in SIM card with unlimited data for 4G connectivity, but can also function through WiFi.

It’s therefore ideal as a mobile card terminal as well as for table-service in, for example, a small café with a secured WiFi network. It also connects with SumUp POS software for a complete, stationary till setup.

To accept a card payment without a POS integration, you enter an amount and custom description on the screen, proceed to add a tip (if relevant), process the card and print or send a digital receipt. Transactions can be viewed and refunded on the terminal.

Accepted cards

VisaV PayMastercardMaestroAmerican ExpressDiscoverJCBContactlessApple PayGoogle PaySamsung Pay

Solo accepts a wide selection of chip and PIN and contactless cards and mobile wallets.

Payments automatically settle in your bank account within 1-3 working days or the next day at 7am (including weekends and Bank Holidays) in an online SumUp Business Account linked with a complimentary Mastercard. If you like, you can then transfer funds to a bank account immediately.

You can order the Solo reader with a countertop stand or receipt printing dock that doubles as a power bank.

Photo: EC, Mobile Transaction

SumUp Solo and Printer box

For a higher price, you can get the SumUp Solo and Printer set.

Our opinion: unique terminal for a small business

SumUp Solo is an interesting card machine for payments that don’t require an integration with a POS system (though it does connect with SumUp POS). It works well for simple transactions where you just enter a payment total, not itemised receipts linked with a food menu or inventory library.

It’s fundamentally different from its predecessor SumUp 3G because of its touchscreen and compact design, but they are equally basic in their features. If you want more advanced features, you may consider SumUp Air that connects with POS systems but doesn’t work on its own.

SumUp Solo criteria Rating Conclusion
Product 4.2 Good
Costs and fees 4.2 Good
Transparency and sign-up 4.8 Excellent
Value-added services 4 Good
Service and reviews 3.8 Good
Contract 5 Excellent
OVERALL SCORE 4.3 Good/Excellent

Mobile Transaction rates card machines – including SumUp Solo – in six different areas: product, pricing, transparency and sign-up, value-added features, reviews and support, and contract.

Each criterion gets a score ranging between 1 and 5, resulting in one overall star rating reflecting SumUp Solo’s value for a small business.

A card machine’s primary function is to take card payments in person, so the device quality and experience of payment acceptance have a higher weighting – this falls under the product criteria.

We thoroughly tested SumUp Solo and researched SumUp as a wider service to establish scores for the other rating categories.

With Solo, you can truly use it solo, anywhere with a mobile connection or wireless internet. The accompanying stand or receipt printer makes it great for, say, hairdressers and pop-up shops with a counter, and the tipping options are advantageous for hospitality and professional services.

“I’d get the Solo with the printer, because the battery life can be short on its own, and the printer is a brilliant portable charger too. At a point of sale, though, you can just keep Solo plugged in.”

– Emily Sorensen, Senior Editor, Mobile Transaction

Last but not least: the lack of monthly fees, commitment and complicated costs is attractive for a card reader. The upfront cost is low compared to traditional card machines, and the fixed rate competitive below a monthly turnover of £5,000.

For alternatives, check out our comparison of the best card machines

Fees and pricing

SumUp Solo only costs a one-off price of £79 + VAT with the desk stand, or £139 + VAT with the receipt printer.

No setup fee applies, and it gets delivered for free within 2-3 working days. If you change your mind about the purchase, there’s a 30-day money-back guarantee on Solo.

There is no monthly fee, contractual commitment or other ongoing costs, just a fixed rate of 1.69% per card payment.

Charges
SumUp Solo £79 + VAT
SumUp Solo and Printer £139 + VAT
Shipping Free
Contractual commitment None
Monthly fees None
Transaction fee (any card) 1.69%
Payouts in 1-3 working days Free
Refunds Before payout: Free
After payout: Transaction fee is retained
Chargebacks £10 each

Payouts are processed free to your bank account within 1-3 working days or SumUp Business Account the next day.

It’s free to refund card transactions, as long as the transaction has not yet been settled in your bank account (i.e. within 1-3 days of the original transaction). After that, SumUp charges a 1.69% transaction fee to process the refund.

If a customer disputes a payment, a chargeback fee of £10 occurs.

A membership subscription, SumUp One, is available for £19 per month. This reduces your chip and contactless rate to 0.99% per transaction for domestic consumer cards (non-UK and commercial cards would cost 1.99%).

Terminal features

SumUp Solo is a totally unique card terminal to enter the UK market. It is the first card machine 100% designed by SumUp in-house by a team of over 100 engineers and product designers.

We know previous card readers – such as SumUp Air – were only partly designed by SumUp, using certain hardware components by third parties.

Photo: Emily Sorensen (ES), Mobile Transaction

SumUp Solo checkout screen

SumUp Solo checkout screen.

Photo: ES, Mobile Transaction

SumUp Solo menu screen.

And the result? A simple touchscreen terminal that can constantly evolve with software updates. I find it comfortable to hold in my hand, lightweight and easy to slide into a pocket. The built-in software is quite basic at this point, but SumUp may add features down the line.

Tech specs
Dimensions 83 x 83 x 17 mm
Card reader weight 147 g
Display Touchscreen, greyscale
PIN pad On touchscreen (no push-button PIN pad)
Connections 4G, WiFi, Bluetooth
SIM card & data Built in, unlimited free data
Card reader technology EMV (chip), NFC (contactless)
Battery life 100 transactions from full charge
Accessories included SumUp Solo card reader, USB-C charging cable, charging cradle with clear lid, card brand decals

The (non-colour) touchscreen is highly responsive. When it’s on standby and not in the accompanying dock, you simply tap the dark screen to show the checkout screen. If stationed in the countertop- or receipt printer dock, you have to press the power button on the side to activate the screen.

Photo: ES, Mobile Transaction

Solo’s display in strong sunlight.

You can adjust the screen brightness to suit any environment and set it to turn off the screen after 30 seconds, 1-5 minutes or never.

We tested the maximum screen brightness in strong sunlight, and the screen was still readable. It was grey and not bright in the sun, though better than its predecessor SumUp 3G’s display that had complaints about being hard to see in the sun.

The battery life is officially 100 transactions from a full charge, but in reality, it depends on how it’s used.

With maximum screen brightness and frequent testing, the battery on our Solo did not take more than an hour to use half its power. When we only used it for transactions with low screen brightness, it lasted longer.

Keeping Solo on standby drained the battery within hours when we first tested it, but SumUp has improved the battery life significantly since.

In addition, the new receipt printer attachment acts as a power bank that automatically starts charging the terminal when low on battery (while placed in the printer). From a full charge, the receipt printer itself can print up to 800 receipts without a recharge.

It takes a few hours to charge Solo from 0% to 100% in the basic desk dock, whereas the receipt printer only takes 1 hour to fully charge itself and the card reader together.

What about the software? Here are the features:

  • Checkout screen: Numerical keypad where you enter a transaction amount and custom description to go on the receipt. You cannot enter multiple amounts for one bill or add products from an inventory library.

Photo: ES, Mobile Transaction

SumUp Solo transaction

You can only enter one amount per transaction.

Photo: ES, Mobile Transaction

SumUp Solo custom description

Entering a transaction description can be fiddly with big fingers, as the keys are small.

Photo: ES, Mobile Transaction

SumUp Solo loading screen

It can take several seconds before it’s ready to accept a card.

Photo: ES, Mobile Transaction

Ready for a contactless or chip and PIN transaction.

  • Receipts: After each successful transaction, you can send a receipt via email or text message (it’s all free). If stationed in the receipt printer, the terminal can of course print it too.

Photo: ES, Mobile Transaction

SumUp Solo send receipt

Receipt options after a payment.

Photo: ES, Mobile Transaction

SumUp Solo text receipt

Entering a mobile number for SMS receipt.

  • Tipping: Turning on ‘Smart Tipping’ will display tipping suggestions before each payment, which has been shown to increase your tipping income. The customer can either choose a tip like £2 or 15% (depending on transaction value), add a custom amount or choose not to tip.

Photo: ES, Mobile Transaction

SumUp Solo smart tipping

Smart tipping options before a payment.

Photo: ES, Mobile Transaction

SumUp Solo tipping settings

Tipping settings.

  • Connections: Toggle on/off WiFi and log into your WiFi network from the main menu. If it’s switched off, the terminal will use its SIM card to connect with the best available mobile network.

  • Sales history: View your transaction history on a list, sorted into dates. Tapping on a transaction gives you more details about the transaction, and options to refund or resend an SMS or email receipt.

Photo: ES, Mobile Transaction

SumUp Solo sales history

Sales history section.

Photo: ES, Mobile Transaction

SumUp Solo transaction options

Transaction options.

  • Languages: Set the language to almost any European language. This is useful if you’re going on a business trip abroad (SumUp Solo can be used abroad under some circumstances) or serving non-English-speaking clients.

That’s it for features.

You can connect the terminal with SumUp App or SumUp Point of Sale for complete till system features. SumUp may also decide to add new functions through its regular software updates on Solo. For instance, we experienced a sudden increase in language options from one day to another while testing.

The card machine automatically shows when new updates are available, but you can also check software updates manually on the terminal. If you need to, you can log out of the account from the settings menu (you must log in with your SumUp account details the first time you use it).

Accessories and printed receipts

Since this is a standalone card machine, you don’t have to connect it with anything else unless you want a full SumUp POS system.

If you buy the cheaper Solo package, the main accessory included is a non-slip display stand to put on a countertop. This doubles as a charging dock (not a power bank) with an internal storage compartment for a USB charging cable.

Photo: EC, Mobile Transaction

SumUp Solo dock compartment

Solo stand’s compartment with USB charging cable.

You can either plug the charging cable into Solo directly, or place Solo in the cradle and plug the cable into the dock to charge the card reader. You’ll need your own adapter plug for the USB cable, or charge it through a USB charging socket.

The countertop dock’s clear, magnetically attached lid is a great, stylish protection to keep the reader free from dust and dirt. The included decals showing all the cards accepted by SumUp Solo can be stuck onto the lid perfectly.

Photo: EC, Mobile Transaction

SumUp Solo in its dock with lid on.

Photo: EC, Mobile Transaction

With the lid off, chip cards can be inserted.

If you buy the Solo and Printer package, you don’t get the above countertop dock. Instead, you get a receipt printer-and-charging dock specifically designed for the SumUp Solo card reader. It’s built to look great as both a countertop stand and portable printer, so it works equally well at till point and on the go.

No other receipt printer works with Solo.

Photo: EC, Mobile Transaction

SumUp Solo + Printer and SumUp Solo

SumUp Solo and Printer next to the Solo without a printer.

You can connect the card reader with point of sale equipment like a cash drawer, barcode scanner and kitchen printer through the SumUp POS Pro system. This is a customisable POS system for hospitality and retail, depending on your requirements.

Alternatively, it can connect with SumUp App on a tablet, if you just need basic till features without a monthly cost.

Photo: EC, Mobile Transaction

SumUp Solo and Printer underneath

Underneath the SumUp Solo Printer, you have non-slip grips.

Photo: EC, Mobile Transaction

SumUp Solo next to printer

You can use the terminal inside or outside the receipt printer.

SumUp Solo vs Air

Faced with the choice between SumUp Air and SumUp Solo, there are some crucial differences.

For a start, SumUp Air only works when it’s connected with an app on a phone or tablet connected to the internet. Solo works on its own or with a POS system.

Because Air is only switched on when a transaction created in SumUp App is ready for the card payment, the battery life of Air is much better than Solo at 500 transactions from a full charge. Transactions on Solo are created from start to finish via a power-consuming touchscreen, so it only lasts 100 transactions from a full charge.

SumUp Solo SumUp Air
SumUp Solo SumUp Air
Price £79 + VAT £34 + VAT
Works without phone/tablet
Network 4G, WiFi Uses phone’s/tablet’s WiFi or mobile network
Size 83 x 83 x 17 mm 84 x 84 x 23 mm
Battery life 100 transactions 500 transactions
POS integrations None SumUp App, SumUp POS
Receipt printing Via SumUp Solo Printer only Connects with various Bluetooth printers

SumUp Air can connect with a good range of compatible, mobile receipt printers over Bluetooth. Solo has its own receipt printer and does not work with other, generic-branded printers unless it’s through a POS system.

Size-wise, Solo is a bit smaller and lighter than Air. This is somewhat due to its dominating touchscreen that acts as both the display and keypad in one, whereas Air has a separate display and physical PIN pad below.

Reporting and other free extras

If you need more than a basic transactions overview on the terminal, you can log into your SumUp Dashboard on a laptop. Here, you can analyse sales and export sales reports.

You’ll also see many additional features (included free) such as invoicing, a product library and your SumUp Business Account.

Photo: Mobile Transaction

SumUp web portal

SumUp Dashboard in a web browser.

Even if you don’t have a card reader, we recommend downloading the SumUp App on your phone because it has lots of additional features. You can send payment links, accept QR code payments, sell and accept gift cards, and create a basic online store.

The app also has an overview of payouts, employee accounts (staff can have different logins) and a product library to sell from.

Customer service

All SumUp merchants can phone, email or message customer support on weekdays between 8am-7pm and weekends between 7am-5pm. Some customers do not get prompt support, while others do – calling is usually the fastest way to reach the team.

You cannot access help guides on the terminal, but it does show the URL to SumUp’s online FAQs that you can look up on your phone.

Photo: EC, Mobile Transaction

SumUp Solo with MobileTransaction card inserted

SumUp Solo and Printer with a chip card inserted.

Getting started

SumUp is one of the easiest options around for getting started with card payments.

You simply go on the website, click to get started and complete an online sign-up form (takes about 5-10 minutes). You can then order the card reader online and wait 2-3 working days to receive it by post.

It may take a few days before your bank account – which must be in a name that matches your business name – is linked to your SumUp account, but you can still accept payments straight away. As soon as the bank account is verified, transactions can be released in your bank account.

Alternatively, you can choose to receive transactions in the online SumUp account, if you want to keep it separate from your bank account.