If you want to accept card payments at a Swiss weekly market or farm shop, you need a mobile terminal that functions without a fixed power connection, supports TWINT and debit cards, and is still profitable for low average receipts starting from CHF 8–15. The selection ranges from low-cost Bluetooth card readers with no monthly costs to independent 4G terminals with receipt printers and TWINT integration. What matters is not the device costs, but the transaction fees – because they run up with every market day.

This guide compares the most important providers and device types for direct marketing in Switzerland, calculates the actual costs per market day, and shows what you need to look out for regarding battery, cellular coverage, and weather.

1. When a mobile card terminal is worthwhile at the weekly market or farm shop

Not every market stall needs a card terminal. If you exclusively serve regular customers who all have TWINT, a QR sticker is sufficient. But as soon as one of the following scenarios applies, a physical terminal is worthwhile:

Firstly: Tourists and passersby who do not have TWINT but want to pay with Visa or Mastercard. Particularly at weekly markets in tourist regions (Zurich, Lucerne, Interlaken, Montreux), card payment is indispensable. Secondly: Higher amounts from CHF 30–50, for example with meat, cheese, or large bouquets of flowers, where cash becomes impractical. Thirdly: If you need receipts – for example for business customers, restaurants, or resellers. And fourthly: If you also run a farm shop in addition to the weekly market and have a fixed checkout situation there.

For pure self-service farm shops without staff, a QR code with a payment page is the better choice because no one operates the terminal. However, as soon as you personally stand at the stall, a terminal is the more professional and faster solution.

2. Which card types your customers use at the weekly market and farm shop

In Switzerland, the card landscape has changed significantly in recent years. The most important development: Maestro has practically disappeared. Swiss banks have switched their debit cards to Visa Debit and Debit Mastercard. For market traders, this means: You need a terminal that accepts Visa and Mastercard – this covers both debit and credit cards.

The most common payment methods at Swiss market stalls

Visa Debit and Debit Mastercard are by far the most common cards. They have replaced Maestro and the old PostFinance Card (V Pay). In addition, there are credit cards (Visa, Mastercard, rarely AMEX), contactless Mobile Wallets (Apple Pay, Google Pay, Samsung Pay – processed through the terminal like a card payment), TWINT (via the terminal or in parallel via QR sticker), and of course still cash. A modern terminal accepts all of these payment methods via a single contactless interface (NFC): hold up the card, hold up the smartphone, done.

3. Device types at a glance: Stationary, mobile, with and without receipt

Three device categories are relevant on the market. Each has its specific purpose.

Bluetooth card readers (smartphone-paired)

Example: SumUp Air. A small, inexpensive device (from approx. CHF 39) that connects to your smartphone via Bluetooth. The transaction is processed via the app on the mobile phone, the card reader is merely the input device. Advantage: very affordable, no subscription. Disadvantage: you always need to have your smartphone with you, no separate screen, no receipt printer, no TWINT acceptance on the device.

Independent mobile terminal (4G/Wi-Fi)

Examples: SumUp Solo, Payrexx Nexgo N86, Worldline Axium EX4000. These devices have their own screen, a built-in SIM card (4G), and function independently of the smartphone. Some models have an integrated receipt printer. Advantage: professional, fast, independent. Disadvantage: higher initial purchase costs or rental fee.

All-in-one terminal (Android-based)

Example: Payrexx Nexgo N6. Android-based devices with a large touchscreen, receipt printer, and the ability to install additional apps (e.g., POS system, inventory management). Advantage: Combines terminal, cash register, and printer in one device. Disadvantage: Larger and heavier than a pure card reader, higher price.

4. Comparison of providers: Payrexx, SumUp, Worldline and Co.

The following table compares the most important providers for mobile card terminals in Switzerland – with a focus on the needs of market traders and farm shops.

The table shows: SumUp is the cheapest entry-level solution with no fixed costs – but is only suitable if you do not need TWINT on the terminal and your card sales are below CHF 3,000 per month. As soon as TWINT on the terminal is important or sales increase, SumUp's transaction fees (1.5–2.5 %) become more expensive than the combination of a Payrexx subscription and lower fees (0.95–1.25 %). Worldline and Nexi offer the lowest negotiable fees, but require contract periods and individual offers.

5. Costs per transaction: What actually applies for small amounts

Direct marketing often involves small amounts: CHF 6 for eggs, CHF 12 for honey, CHF 15 for vegetables. With such amounts, the fixed fees per transaction carry more weight than the percentage. Let us calculate a concrete example.

Cost calculation: 12 market days per month, 80 transactions per day

Assumption: average receipt CHF 18, of which 60 % debit card, 30 % TWINT, 10 % credit card. This results in 960 transactions and CHF 17,280 card sales per month.

The calculation shows: SumUp appears cheaper at first glance, but does not offer TWINT on the terminal. If 30 % of your customers want to pay via TWINT, you will lose these sales – or you will need a TWINT QR sticker in parallel. With Payrexx, everything is integrated into one single device. Worldline is negotiable for high volumes and long contract periods, but is only worth it from a significantly higher turnover.

Important: The fixed fee per transaction (e.g., CHF 0.15 with Payrexx) carries weight for small amounts. For a carton of eggs for CHF 6, the fixed fee alone makes up 2.5 % – plus the percentage. For CHF 50 for cheese, the fixed fee is only 0.3 %. Farm shops with many small amounts should check whether a pure QR solution (e.g., Payrexx QR Pay: 1.25 % + CHF 0.00) makes more sense for the cheapest items.

6. Battery, 4G, and weather: Practical requirements at the weekly market

Battery life

A market day typically lasts 6–10 hours. Most modern terminals manage 300–500 transactions per battery charge – this is enough for a full market day. According to manufacturer information, the Nexgo N86 holds over 500 transactions. The SumUp Solo manages around 100 contactless transactions in a row. Tip: charge the device fully the night before and, in case of doubt, bring a power bank along.

Cellular connection (4G)

Terminals with a built-in SIM card (4G) are ideal for weekly markets because they do not require Wi-Fi. The connection runs via the cellular network. At most Swiss weekly markets in towns, 4G coverage is good. It can be problematic on mountain markets, alpine events, or very remote farm shops. In these cases, only terminals with offline capability or a TWINT QR sticker (which uses the customer's cellular network) will function. Bluetooth card readers such as the SumUp Air use the smartphone's cellular network – this can be doubly problematic in cases of poor reception (phone + terminal).

Weather and robustness

It sometimes rains at the weekly market. No standard card terminal is waterproof – so you need a protected place under the stall roof. Make sure you have a stable, elevated shelf for the device so that it does not fall into water or get wet. In winter cold, battery life can drop significantly (up to 30 % less in sub-zero temperatures). In summer, direct sunlight can make the screen unreadable – place the device in the shade.

7. TWINT on the terminal: How to accept TWINT via the card reader

TWINT is by far the most popular mobile payment method in Switzerland. At weekly markets and in farm shops, it has already overtaken cash in many cases. There are two ways to accept TWINT at the market stall:

TWINT on the card terminal (integrated)

Some providers – including Payrexx, Worldline, and Nexi – integrate TWINT directly into the card terminal. Customers hold their smartphone to the terminal or scan a QR code displayed on the screen. The transaction runs via the same settlement process as a card payment. Advantage: one device, one settlement system, one Dashboard. With Payrexx, TWINT at the POS terminal costs 1.25 % + CHF 0.00 per transaction.

TWINT via QR sticker (parallel to the terminal)

If you use a terminal without TWINT integration (e.g., SumUp), you can hang a TWINT QR sticker at the stall in parallel. The TWINT payments then run separately via the TWINT channel, while the card payments go through the terminal. Disadvantage: two separate systems, two separate statements, more effort in accounting. If TWINT makes up a significant share of your transactions (at many Swiss market stalls 30–50 %), an integrated solution is easier in the long run.

8. Checklist: The right card terminal for your weekly market or farm shop

• Clarify whether you need TWINT on the terminal. If so, SumUp and other pure card readers are out of the question.

• Calculate your transaction volume: How many transactions per market day, what average receipt? Only then can the actual monthly costs be compared.

• Choose a 4G-enabled terminal if you do not have reliable Wi-Fi access at the market stall.

• Check the battery life: Is one charge sufficient for your market day (6–10 hours, 50–100 transactions)?

• Receipt printer yes or no? Business customers and resellers often expect a receipt.

• Check contract commitment: For seasonal market traders (e.g., only April–October), a model with no contract commitment is better.

• Store the device protected from weather: There is no splash protection – place the terminal under the stall roof, on an elevated shelf.

• TWINT QR sticker as a supplement: Even with a terminal, an additional QR sticker is useful for customers who wish to pay directly via the TWINT app.

• Prepare accounting: Set up a clearing account for card payments and book gross turnover and fees separately.

• Testing: Put the terminal into operation on a market day and check reception, battery, and speed under real conditions.

If you are looking for a terminal with integrated TWINT acceptance and no contract commitment, Payrexx offers the Nexgo terminals N6 and N86 for rent – currently, both devices are available free of charge, as long as stocks last. The POS fees are 0.95 % + CHF 0.15 for debit cards, 1.25 % + CHF 0.15 for credit cards, and 1.25 % + CHF 0.00 for TWINT.

The terminal requires a Standard or Premium Plan (from CHF 19/month). All payments – card, TWINT, online sales – run through one Dashboard and are paid out in bundes to your bank account.

.