Smart POS Card Machines: Features, Costs & Best Fits

Take payments with a card machine or online payment with a payment gateway

Smart POS Card Machines: When a Better Checkout Is Worth Paying For

A customer wants to change an order, another needs a receipt and somebody has entered £8.50 on the card machine instead of £18.50. If you run a busy counter, you know that taking payment is only one part of the job. The bigger challenge is keeping the sale, the money and the records in step.

A smart POS card machine can help by putting payment collection and useful business tools on the same device. But “smart” covers a wide range of products. One terminal might offer little more than a product list. Another may connect to a full till system with stock, table management and staff permissions.

The best purchase is the one that removes a real daily problem. This guide explains what to expect, how to compare the costs and what to ask a supplier to demonstrate before you commit.

Quick verdict: choose a smart terminal when its software makes checkout or reporting easier. Keep a simpler reader if you mainly enter a price and collect payment. If you need detailed inventory, booking or restaurant operations, choose the software first and then its compatible hardware.

Some links are affiliate links. We may receive a commission if you use them, at no extra cost to you. The comparisons below use published product information and practical scenarios, not claimed hands-on testing.

What is a smart POS card machine?

It is a payment device with a screen and software that can do more than accept a card. Depending on the product and subscription, it might let you select items, manage staff access, record cash, split a payment or inspect sales reports.

The label does not guarantee any particular capability. A touchscreen is a design feature, not proof of stock control. An Android operating system does not mean you can install any Android app. And a portable battery-powered terminal does not automatically include mobile data.

Keep three layers separate when comparing:

The device: screen, battery, printer, scanner and connection.
The software: the checkout and business functions you can actually use.
The payment service: fees, account approval, payouts and contract terms.

A supplier may bundle all three. Another may sell the hardware but require separate software or processing agreements. Ask what is included before comparing headline prices. Our card machine buying guide explains the hardware side in more detail.

Which level of system do you need?

Your main requirement

Suitable starting point

Avoid paying for

Enter an amount and collect payment

Basic reader or terminal

Business software nobody will use

Select products and see sales totals

Smart terminal with a useful catalogue

Advanced stock functions you do not need

Keep a shop and website's stock aligned

Retail POS with supported integration

A screen that displays products but cannot synchronise stock

Manage tables, modifiers and kitchen orders

Restaurant POS with compatible payment equipment

A generic payment app presented as a full restaurant system

Track appointments and deposits

Booking-led software and payments

A product catalogue that cannot manage appointments

Give staff different access rights

A system with demonstrable permissions

Shared owner passwords as the working solution

If the problem is simply an ageing machine, a full software change may be unnecessary. If the problem is duplicate entry, lost orders or poor stock information, replacing the terminal alone may leave it unresolved.

Product routes worth comparing

1 Square Terminal: a compact checkout with a receipt printer

Square Terminal combines a touchscreen payment device with a built-in printer. Its published connection options include Wi-Fi and Ethernet, with accessories needed for some connected equipment. Square Terminal product information.

This makes it worth considering for a small counter where you want a self-contained checkout rather than a reader attached to the owner's phone. A café, treatment room or service desk can all benefit from equipment that staff can access while the owner is elsewhere.

The more useful question is which Square software you intend to run and what the chosen plan includes. Demonstrate a real sale, a refund and the report you need for bookkeeping. If you want an existing till to send amounts to Terminal, confirm that exact integration rather than assuming it is automatic.

Consider it when: a compact payment station and paper receipts would simplify the counter. Check carefully: connectivity, software subscriptions and compatibility with equipment you already own.

Explore Square, or read our Square POS review.

2 takepaymentsplus: a terminal with everyday trading tools

takepaymentsplus supports product categories, cash recording, part-cash payments, staff users and transaction reporting. Its published offer includes A920Pro and A77 device options, with different hardware formats. takepaymentsplus features.

For a small business moving from manually entering every amount, those functions may provide the useful middle ground. You could organise common products, make the checkout more consistent and inspect sales without installing a large till system.

However, product management is not proof of full inventory management. If you need purchase orders, stock variants or an online shop to update automatically, ask for those exact workflows. Do not let the conversation stop at “yes, it has products”.

Consider it when: you want a supplier to help specify a terminal with straightforward business functions. Check carefully: the software scope and every agreement covering the device and processing.

Explore takepayments, or read our takepayments review.

3 PayPal POS Terminal: compare it separately from the small Zettle reader

PayPal POS, formerly Zettle, offers a standalone Terminal as well as a paired Reader. The Terminal has the POS app built in and Wi-Fi or 4G connectivity; scanner and printer options need checking separately. PayPal POS device information.

It is worth comparing if you already use PayPal POS and want to reduce reliance on a separate phone or tablet. Familiar software can make an equipment upgrade easier, provided it still handles your growing needs.

Before ordering, list the accessories you require. A base terminal, a terminal with a scanner and a terminal with printing equipment are different baskets. Compare complete baskets and the associated payment costs.

Consider it when: you want a more self-contained version of a familiar checkout. Check carefully: accessory costs and whether the reporting is enough for your business.

Read our PayPal POS review for the broader comparison.

4 A full retail POS: choose this for stock problems, not the screen size

If stock accuracy is the real problem, a fuller retail system may be the better category to investigate. Lightspeed's retail offer, for example, focuses on inventory and retail operations as well as payments. Lightspeed retail POS.

Imagine a clothing shop selling several sizes and colours in-store and online. The owner needs to know what is available, what has been returned and what should be reordered. A terminal showing a “T-shirt” button does not necessarily answer those questions.

For this kind of business, start with the stock workflow and then select supported payment hardware. Ask about data import, product variants, returns and the effect of an internet outage on stock updates.

Consider it when: stock and multi-channel selling are taking too much time to manage. Check carefully: the complete software, hardware, payment and implementation bill.

Explore Lightspeed POS, or use our EPOS systems guide to compare the wider category.

If you need more than a payment terminal

The POS comparison below is relevant if you need broader business software. Compare its suggested systems against your own tasks, and ask which payment devices and processing agreements work with each package.

Give the supplier a real demonstration brief

A demonstration should look like your business, not a perfect sale with one item and no questions. Choose the scenario closest to your working day and ask the salesperson to perform it on the quoted plan.

For a café or takeaway

Enter a coffee with an extra shot and an alternative milk, add food, then remove an item before payment. Ask where the order appears, whether the customer receipt is clear and how a refund is recorded later.

If you need kitchen printing or a kitchen screen, include that equipment in the demonstration and quote. Ask what happens when the kitchen device is offline. A payment going through does not mean the order reached the person preparing it.

For a retailer

Sell an item with a size or colour, apply an authorised discount and return another item. Check the stock count after each step. If the shop also sells online, ask to see when the availability changes there.

Find a previous transaction without knowing the exact total. That is the sort of small task that can become frustrating when a customer returns with only part of the information.

For a salon or service business

Collect the outstanding balance after a deposit and distinguish the service from an added retail product. Check what a colleague covering reception would see and whether they can make a refund without accessing the owner's full account.

If the system does not hold appointments, ask how it connects to the diary. Our salon card machine guide covers that decision in detail.

Calculate the benefit before adding another subscription

A more capable system does not have to be the cheapest to be worthwhile. But its benefit should be specific enough to estimate.

Suppose an upgrade adds £45 per month in software and £300 in equipment. Spread the equipment over 24 months for comparison and the extra cost is £57.50 per month, before processing differences and tax. If it saves 15 minutes of administration on each of 22 working days, that is 5.5 hours monthly. At an illustrative £15 an hour, the time is worth £82.50.

That would leave a potential £25 monthly benefit in this simplified example. But only count time that is actually saved and useful. If the new system needs another half-hour of maintenance every day, the forecast has failed.

Write down the expected improvement before buying, then check it after a month. Good measures include time to close the till, number of corrections and whether stock reports are actually used. “It looks more modern” is a weaker justification when margins are tight.

Build the complete monthly cost

Cost area

What to put into your comparison

Hardware

Purchase or rental, printer, scanner, stand and replacement policy

Software

Location, register, user and add-on charges

Payments

Your actual card mix, transaction count and monthly processing

Connections

SIM/data, network equipment and support

Setup

Data import, installation, training and time away from trading

Exit

Notice period, remaining rental, data export and later refunds

Take care with “free POS” offers. The basic checkout may be free while the function you need is a paid feature. Similarly, a low hardware instalment does not describe the whole cost of operating the system.

Give quote providers the same turnover and equipment list. Our card machine fees guide helps you identify processing charges; Compare merchant services covers the broader provider relationship.

Connections and batteries: test the working environment

If customers pay at tables or outside, test those areas rather than assuming the connection at reception represents the whole premises. Ask whether mobile data is included, whether a phone hotspot is needed and what happens when the connection changes.

Check battery performance with the screen, printer and connection in normal use. A quoted battery duration under one set of conditions does not tell you exactly how it will behave during your busiest shift. Decide who charges each device and where spare equipment is kept.

Offline capabilities also vary. Confirm the supported payment methods, limits, reconnection deadline and responsibility for a later decline. A screen recording a transaction is not the same thing as confirmed money available to spend.

Permissions and records should survive the owner’s day off

Staff need enough access to serve customers, but not necessarily the ability to change prices, export customer information or issue unrestricted refunds. Ask the supplier to show how permissions work on your chosen plan.

Avoid sharing the owner's login simply because it is quicker during setup. Create a practical process for adding and removing staff, recovering access and contacting support. Test that someone else can close the day correctly when you are not there.

Before changing providers, export the information you need and confirm access to historical transactions. Know how later disputes or refunds will be handled. Preserve customer balances, outstanding deposits and gift vouchers through the changeover.

Questions small-business owners ask

Is a smart terminal the same as a full EPOS system?

No. A smart terminal may provide a compact checkout and basic business functions. A fuller EPOS setup can manage more of the operation. Compare the tasks each system performs rather than relying on the label.

Does Android mean I can install any app?

No. Payment terminals can have controlled software environments. Ask which approved applications and integrations are available through your supplier, and whether extra charges apply.

Will a smart machine automatically reduce card fees?

No. Hardware capability and processing pricing are separate. A better terminal may make service easier while costing more overall. Compare the total proposal with your current bill.

What should I buy first, the software or the machine?

If you need bookings, stock or restaurant operations, choose the software workflow first. Then confirm compatible hardware. If you only need payment collection, start with the simpler card reader comparison.

Published product information checked on 11 September 2026. Demonstration tasks and the time-saving calculation are illustrative buying tools, not measured provider performance.