Portable Card Machines UK: Wi-Fi, 4G & Pay-at-Table Terminals

A portable card machine allows staff to take the payment terminal to the customer rather than bringing the customer to a fixed checkout.

That makes portable terminals particularly useful for:

• restaurants;
• pubs and bars;
• hotels;
• hospitality venues;
• large retail environments;
• events;
• outdoor trading areas;
• multi-site businesses; and
• businesses where payments need to move around the premises.

But choosing a portable card machine in 2026 involves more than checking battery life and whether it accepts contactless payments.

Businesses should consider:

• Wi-Fi and mobile connectivity;
• 4G support;
• EPOS integration;
• pay-at-table functionality;
• tipping;
• split bills;
• transaction costs;
• settlement;
• support;
• terminal contracts;
• PCI DSS;
• multi-site reporting; and
• what happens if the primary connection fails.

A portable card machine should not simply move around the building. It needs to remain connected to the wider payment operation wherever the customer chooses to pay.

Quick Summary

• Portable card machines are designed to take payments away from a fixed till while remaining within or around a business location.
• They are particularly common in restaurants, hospitality, hotels and larger venues.
• Modern portable terminals commonly use Wi-Fi, mobile connectivity or a combination of connection methods.
• UK 3G mobile networks have now been switched off, so businesses should not deploy older terminals that depend on 3G connectivity.
• UK 2G networks are also being phased out, with all operators committed to switching them off by 2033 at the latest.
• Businesses purchasing or deploying cellular-connected terminals should confirm current 4G support and the provider's migration plans for older hardware.
• Portable and mobile card machines are not necessarily the same thing.
• Hospitality businesses should check tipping, split bills, pay-at-table and EPOS compatibility.
• Wi-Fi coverage should be tested where customers actually pay, not just beside the till.
• A portable terminal should have an appropriate fallback if its main connection fails.
• Transaction pricing and terminal rental should be compared alongside functionality.
• For multi-site merchants, central reporting and terminal management can be more important than individual hardware cost.

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What Is a Portable Card Machine?

A portable card machine is a payment terminal designed to operate away from a fixed checkout position.

For example, instead of a restaurant customer walking to the till to pay, a member of staff can take the terminal to the table.

The terminal normally connects wirelessly using technology such as:

• Wi-Fi;
• mobile data;
• Bluetooth in some configurations; or
• more than one connection method.

The exact setup depends on the device and payment provider.

Portable vs Mobile Card Machines: What Is the Difference?

The terms are often used interchangeably, but there is a useful distinction.

In practice, modern terminals increasingly blur this distinction because one device may support both Wi-Fi and mobile data.

The important question is not what the provider calls the terminal.

It is:

Where does the business need to take payments, and which connectivity does it need to work reliably there?

What Happened to GPRS and 3G Card Machines?

Older portable-terminal guidance frequently refers to GPRS and 3G card machines.

That terminology is now outdated for a new UK deployment.

Ofcom confirms that the UK's 3G mobile networks have now been switched off.

UK mobile operators are also gradually withdrawing 2G services.

All UK operators have committed to switch off 2G by 2033 at the latest, although individual networks can do so earlier.

Ofcom specifically identifies payment terminals among the types of devices that may still depend on older mobile networks and may therefore require upgrading.

Read Ofcom's current 2G and 3G switch-off guidance.

MAS View

We would not choose a new portable payment terminal in 2026 without confirming that its cellular connectivity is built for the post-3G UK network environment.

Should a New Portable Card Machine Support 4G?

If mobile connectivity forms part of the terminal setup, this should be checked.

Ofcom advises customers buying connected devices to ensure they support at least 4G as older mobile networks are withdrawn.

For a payment terminal, ask:

• Does the terminal support 4G?
• Which mobile network or networks does it use?
• Does it use a domestic or roaming SIM arrangement?
• Can it automatically switch between Wi-Fi and mobile data?
• What happens if the mobile network is unavailable?
• Can another network be used?
• How will older terminals be upgraded or replaced?

For businesses relying on cellular payments, connectivity should be treated as part of payment resilience rather than simply a terminal specification.

Wi-Fi vs 4G Portable Card Machines

Neither connection method is automatically better.

The right choice depends on where payments are taken.

Wi-Fi Portable Card Machines

Wi-Fi can work well where the merchant has strong, reliable coverage across the trading environment.

Potential advantages include:

• strong indoor connectivity;
• use across a restaurant or retail floor;
• connection to existing business infrastructure;
• support for integrated payment environments; and
• reduced dependence on mobile signal inside the premises.

But businesses should test Wi-Fi coverage in:

• outside seating areas;
• basements;
• private dining rooms;
• hotel function rooms;
• gardens;
• terraces;
• upper floors; and
• other areas where customers may actually pay.

4G Portable Card Machines

Mobile data can be useful where:

• Wi-Fi coverage is inconsistent;
• payments are taken outdoors;
• staff move between buildings;
• the business trades at temporary locations;
• the terminal is used at events; or
• mobile data provides a backup to Wi-Fi.

Coverage remains location-dependent, so the mobile network used by the terminal should still be checked.

Wi-Fi + Mobile Data

For payment-critical environments, having more than one supported connectivity route can provide useful resilience.

The important question is whether the terminal can move between those connections reliably and how the provider manages any fallback.

Portable Card Machines for Restaurants

Restaurants are one of the strongest use cases for portable terminals.

A well-designed pay-at-table setup can allow staff to:

• select the table or bill;
• bring the terminal to the customer;
• send the correct payment value to the device;
• accept tips;
• split the bill;
• take the payment;
• return the payment status to EPOS; and
• close the table.

That is considerably different from simply carrying a standalone card machine around the restaurant.

What Is Pay at Table?

Pay at table allows customers to complete payment from their table rather than queuing at a central till.

The payment terminal may operate:

• standalone;
• integrated with EPOS; or
• through another restaurant/payment application.

For hospitality businesses, useful questions include:

• Can the terminal retrieve the table bill?
• Can the customer split the bill?
• Can several customers pay against the same table?
• How are tips handled?
• Does payment automatically close the table?
• Can refunds be linked to the original transaction?
• Does the EPOS system support the payment provider?

MAS View

For a restaurant, “portable” describes the hardware. “Pay at table” describes the payment experience. The two are not automatically the same thing.

Do Portable Card Machines Support Tipping?

Many modern hospitality terminals can support tipping functionality, but the exact implementation varies.

Businesses should establish:

• when the tip prompt appears;
• whether percentage and custom tips are available;
• whether staff can bypass the prompt;
• how tips appear in reporting;
• how tips are reconciled;
• how they interact with EPOS; and
• how the business distributes tips internally.

Do not assume all terminal integrations handle gratuities in the same way.

Can Portable Card Machines Split a Restaurant Bill?

Potentially.

But again, this is primarily an integration and software question rather than simply a hardware feature.

Split-payment functionality may allow:

• equal bill splitting;
• payment by individual items;
• part card / part cash;
• multiple cards against one bill; or
• other payment combinations.

Restaurants should test their actual customer journeys before deploying a new terminal estate.

Should a Portable Card Machine Integrate With EPOS?

For some merchants, absolutely.

Integration can allow the payment value to move automatically from EPOS to the terminal rather than being manually keyed by staff.

This can support:

• faster payment workflows;
• fewer manual amount-entry errors;
• better reconciliation;
• joined-up reporting;
• table management; and
• more consistent operations.

However, not every payment provider integrates with every EPOS platform.

Check compatibility before signing a contract.

See our Integrated Card Machines & EPOS Compatibility guide.

Portable Card Machines for Hotels

Hotels can have unusually varied card-present payment requirements.

A single property may need terminals at:

• reception;
• restaurants;
• bars;
• spa facilities;
• events;
• conference areas;
• room service; and
• other guest locations.

The wider hotel payment environment can also include:

• online bookings;
• pre-authorisations;
• deposits;
• card-on-file payments;
• refunds;
• international cards; and
• PMS or hospitality integrations.

The portable terminal should therefore be evaluated as one element of the hotel's wider payment strategy.

Portable Card Machines for Pubs and Bars

Pubs and bars may prioritise:

• fast transaction speed;
• portable devices;
• strong Wi-Fi coverage;
• mobile connectivity backup;
• long trading hours;
• durable hardware;
• quick terminal replacement;
• EPOS integration;
• tipping where relevant; and
• support during evenings and weekends.

A terminal support line that closes while the venue is entering its busiest trading period may be a significant operational limitation.

Portable Card Machines for Outdoor Areas

Outdoor trading creates additional considerations.

These can include:

• Wi-Fi range;
• mobile coverage;
• battery life;
• weather exposure;
• screen visibility;
• physical protection;
• distance from charging points; and
• terminal loss or damage.

Businesses with beer gardens, terraces, food courts or outdoor events should test the actual payment area rather than assuming indoor connectivity extends sufficiently far.

Portable Card Machines for Events

Events can place unusually heavy demands on payment infrastructure.

Problems can include:

• large numbers of transactions within a short period;
• weak venue Wi-Fi;
• congested mobile networks;
• temporary staff;
• limited charging opportunities;
• multiple payment points;
• temporary locations; and
• little tolerance for downtime.

Businesses should establish:

• how many terminals are required;
• which network they use;
• whether backup connectivity exists;
• how terminals will be charged;
• how staff log in;
• how transactions are reported; and
• what support is available during the event.

How Many Portable Card Machines Does a Business Need?

There is no fixed ratio.

The answer depends on:

• customer volume;
• number of staff;
• number of tables;
• venue size;
• transaction duration;
• peak trading periods;
• number of locations;
• charging requirements; and
• how damaging a terminal failure would be.

It can be useful to model requirements around peak trading rather than average activity.

A restaurant that can operate comfortably with three terminals on Tuesday afternoon may require a very different setup on Saturday evening.

How Important Is Battery Life?

Battery performance matters where the terminal spends long periods away from its charging base.

But manufacturer battery-life claims should be treated as one part of the assessment.

Real-world usage depends on factors such as:

• transaction volume;
• screen use;
• mobile connectivity;
• Wi-Fi;
• receipt printing;
• terminal age; and
• operating environment.

High-volume merchants should consider charging processes and spare-device arrangements rather than relying on a headline battery specification alone.

Do Portable Card Machines Need Receipt Printers?

Not necessarily.

Depending on the terminal and provider, receipts may be:

• printed;
• emailed;
• sent digitally;
• generated through EPOS; or
• provided using another supported method.

A built-in printer can still be useful in certain environments, but it adds:

• terminal size;
• paper management;
• maintenance; and
• potentially greater battery usage.

The business should decide whether paper receipts are operationally necessary.

What Happens If the Wi-Fi Goes Down?

This should be answered before deployment.

Depending on the terminal and provider, possible contingency arrangements can include:

• switching to mobile data;
• using another terminal;
• using another network connection;
• Tap to Pay;
• payment links; or
• another approved payment route.

Businesses should not assume every terminal automatically falls back from Wi-Fi to cellular connectivity.

Confirm how the specific device works.

See our Card Machine Connectivity Issues guide.

What Happens If Mobile Signal Is Poor?

A portable terminal that relies on cellular data can only perform as well as the available network and configuration allow.

Businesses should consider:

• coverage inside the premises;
• coverage outside;
• which network the terminal uses;
• whether multiple networks are available;
• whether Wi-Fi provides an alternative;
• building construction;
• basement trading areas; and
• local network congestion.

Testing the terminal in the intended environment is preferable to relying solely on general coverage assumptions.

Can Portable Card Machines Work Across Multiple Sites?

Yes, depending on the provider and merchant setup.

But a larger business should look beyond whether each terminal works individually.

Consider:

• MID structure;
• location-level reporting;
• group reporting;
• central terminal management;
• staff access;
• replacement processes;
• EPOS integration;
• settlement reporting;
• device deployment; and
• group pricing.

A restaurant group with 50 portable terminals has a terminal estate, not simply 50 separate card machines.

MAS View

Once a business operates multiple locations and dozens of devices, terminal management becomes part of payment infrastructure.

How Much Do Portable Card Machines Cost?

There is no standard UK portable-card-machine price.

Hardware can be:

• purchased outright;
• rented;
• supplied as part of a merchant-services package; or
• included within another commercial arrangement.

The larger cost can often come from payment processing rather than the terminal itself.

Businesses should compare:

• terminal purchase/rental;
• transaction percentage;
• fixed transaction charges;
• monthly account costs;
• PCI-related fees;
• mobile/SIM charges where applicable;
• integration costs;
• support;
• replacement costs; and
• contract terms.

See our Card Machine Costs UK 2026 guide.

Should You Rent or Buy a Portable Card Machine?

That depends on the wider payment arrangement.

Purchasing hardware may suit merchants looking for:

• simple setup;
• lower fixed commitment;
• occasional use; or
• a small number of devices.

Rental may suit businesses requiring:

• a larger terminal estate;
• replacement hardware;
• managed support;
• EPOS integration;
• multi-site deployment; or
• negotiated acquiring arrangements.

Read our Card Machine Rental vs Purchase guide.

How Do Transaction Fees Affect Portable Card Machine Choice?

For an established merchant, transaction pricing can quickly outweigh hardware cost.

Imagine a hospitality business processes:

£500,000 per month.

A difference of:

0.10 percentage points

in processing cost is approximately:

£500 per month

or:

£6,000 per year.

That could be considerably more than the annual rental difference between two terminal estates.

This is an illustrative MAS calculation and does not represent expected provider savings.

See our Card Machine Transaction Fees guide.

What Contract Should You Check?

Portable terminals may be supplied under a separate terminal-hire agreement from the merchant's acquiring contract.

Before signing or switching, check:

• initial contract term;
• monthly rental;
• notice period;
• renewal;
• terminal-return requirements;
• replacement charges;
• exit terms;
• merchant-services contract; and
• EPOS/integration agreements.

The Payment Systems Regulator's Specific Direction 16 restricts the initial length of qualifying POS-terminal hire contracts for relevant merchants and providers within its defined scope.

Read the PSR's guidance on POS-terminal contracts.

Are Portable Card Machines Secure?

Payment terminals should form part of the merchant's wider PCI DSS and payment-security environment.

Businesses should understand:

• who supplies the terminal;
• which models are approved and supported;
• how software updates are managed;
• how terminals are physically protected;
• how lost/stolen devices are handled;
• whether the solution uses validated P2PE where applicable;
• how devices are inspected for tampering; and
• what PCI DSS responsibilities remain with the merchant.

See our PCI DSS Compliance Guide.

What Happens If a Portable Card Machine Is Lost or Stolen?

Businesses operating portable devices should have a clear process for missing terminals.

This may include:

• reporting the device immediately;
• remotely disabling it where supported;
• notifying the payment provider;
• checking transaction activity;
• recording the incident;
• replacing the device; and
• reviewing staff/device controls.

Terminal inventories become especially important for multi-site businesses with large device estates.

Can Portable Card Machines Be Used as a Backup?

Yes, portable or mobile devices can form part of a payment-continuity plan.

A business might maintain an alternative device or payment route for use during:

• EPOS failure;
• network outages;
• terminal failure;
• high-volume periods;
• temporary trading; or
• events.

However, backup terminals should be tested rather than left unused until an emergency occurs.

When Should You Replace an Older Portable Card Machine?

A review may be appropriate where:

• the device relies on legacy mobile connectivity;
• 3G support was part of the original specification;
• the terminal does not support current requirements;
• software/security support is ending;
• battery performance has deteriorated;
• Wi-Fi performance is poor;
• EPOS compatibility has changed;
• the payment provider is changing;
• the business needs better integration; or
• the existing estate is difficult to manage.

With UK 3G networks now switched off and 2G being phased out, connectivity is a particularly important consideration for older terminals.

Portable Card Machine Checklist

Before choosing a provider, establish:

• where payments will be taken;
• number of locations;
• number of terminals;
• Wi-Fi coverage;
• mobile coverage;
• 4G support;
• connectivity fallback;
• battery requirements;
• receipt requirements;
• tipping;
• split-bill functionality;
• pay-at-table requirements;
• EPOS compatibility;
• transaction volume;
• transaction fees;
• terminal costs;
• settlement;
• support hours;
• replacement process;
• PCI arrangements;
• contract term; and
• future expansion.

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The MAS Portable Terminal Fit Test

We would assess a portable-card-machine setup across six areas.

1. Mobility Fit

Where does the customer actually need to pay?

2. Connectivity Fit

Will Wi-Fi and/or mobile data work reliably throughout the intended payment area?

3. Operational Fit

Does the terminal support pay at table, tipping, split bills, refunds and other required workflows?

4. Integration Fit

Does it work properly with the merchant's EPOS and wider payment architecture?

5. Commercial Fit

How do processing costs, terminal charges, contracts, settlement and support compare?

6. Resilience Fit

What happens when the terminal, Wi-Fi, mobile network or integration stops working?

MAS View

The best portable card machine is not the one that can technically go anywhere. It is the one that continues to work reliably everywhere your customers actually pay.

How Merchant Advice Service Helps Businesses Compare Portable Card Machines

Merchant Advice Service helps businesses compare card-machine and payment-provider options based on the complete payment requirement.

When reviewing portable terminals, we may consider:

• current provider;
• card turnover;
• number of terminals;
• number of locations;
• hospitality requirements;
• EPOS;
• pay-at-table functionality;
• connectivity;
• transaction pricing;
• settlement;
• support;
• terminal contracts;
• PCI requirements; and
• future growth.

Businesses can explore payment providers through The Payments Directory® or read How Merchant Advice Service Works.

Sources & Further Reading

Ofcom — UK 2G and 3G Network Switch-Off

Ofcom confirms that UK 3G mobile networks have now been switched off and that mobile operators are gradually withdrawing 2G. Payment terminals are among the types of connected devices that may be affected by older network closures.

Ofcom — Switching Off the UK's 2G and 3G Networks

Ofcom — Advice for Connected-Device Suppliers

Ofcom provides current information on the withdrawal of legacy mobile networks and the need to migrate older connected devices.

Ofcom — 2G and 3G Switch-Off Guidance for Connected Devices

Payment Systems Regulator — POS-Terminal Contracts

The PSR identified long POS-terminal contracts as a barrier to merchants changing acquiring provider and introduced restrictions for relevant terminal-hire agreements.

PSR — Note to POS Terminal Providers

PCI Security Standards Council

PCI SSC publishes the current PCI DSS requirements and supporting standards relevant to merchant payment environments.

PCI SSC Document Library

Related Merchant Advice Service Guidance

• How to Choose a Card Machine Provider
• Card Machine Costs UK 2026
• Card Machine Transaction Fees
• Card Machine Rental vs Purchase
• Integrated Card Machines & EPOS Compatibility
• Countertop Card Machines
• Card Machine Connectivity Issues
• Taking Card Payments Using a Mobile Phone
• Merchant Services for Multi-Location Retailers
• PCI DSS Compliance Guide
• Compare UK Payment Providers
• The Payments Directory®

Editorial & Commercial Disclosure

Merchant Advice Service is an independent payments information, comparison and provider-matching service.

MAS may receive commission or a referral fee from some payment providers where a business chooses to proceed following an introduction. This does not determine the factual information or provider-selection principles contained within this guide.

Portable-terminal functionality, connectivity, integration and commercial arrangements vary between devices and providers.

UK 3G mobile networks have now been switched off. UK mobile operators are also phasing out 2G, with all operators committed to switch-off by 2033 at the latest, although individual network timelines may be earlier.

Businesses should confirm the current connectivity supported by any terminal with the relevant provider before purchase or deployment.

References to Wi-Fi, 4G, pay-at-table, tipping, split bills and fallback connectivity describe potential capabilities. They are not available on every terminal or payment-provider integration.

Provider pricing, integrations, terminal hardware, mobile connectivity and support arrangements can change.

Merchant Advice Service does not guarantee provider acceptance, coverage, pricing or technical compatibility.

Connectivity and payment information last checked: 27 August 2026

This guide provides general payments information and should not be treated as technical, legal, regulatory or PCI compliance advice.