Sunmi is a leading Chinese manufacturer specializing in the production of modern POS (Point of Sale) terminals based on the Android operating system. It is an all-in-one “cash register + tablet” device housed in a single unit.
Once you install RO Mobile App on your Sunmi device, you’ll have a fully-featured, standalone, and mobile point of sale. Thanks to Sunmi’s technical capabilities, the app allows you to complete the entire client service cycle on a single device:
Wireless interfaces (Wi-Fi, Bluetooth, 3G/4G): for stable operation both on the sales floor and on the go.
Built-in cameras and 2D scanners: for quickly scanning product barcodes.
NFC module: for contactless payment acceptance via smartphones or cards.
Built-in thermal printer: for instant printing of receipts (58 mm or 80 mm) or labels.
Let’s take a closer look at the specific business automation capabilities offered by the combination of Sunmi and RO App.
Why Sunmi + RO App is a Perfect Match
Barcode Scanning & Camera Setup
Sunmi devices can be effectively used in warehouses or on the sales floor as data collection terminals. They’re perfect for scanning products while putting together work orders, processing sales, and generating invoices.
How to scan a product in RO Mobile App:
Go to the product selection screen in an open sale or work order.
Tap the scanner icon or the Scanner button.
Point the device’s camera at the barcode of the product or service.
💡 Important: Since your device may have multiple cameras (front, rear, side), pay attention to which camera is enabled by default in the app when scanning barcodes.
Accepting Contactless Payments via Tap to Pay
Thanks to the built-in NFC module, Sunmi devices support Tap to Pay technology, which turns your gadget into a full-fledged point-of-sale terminal.
How to accept payments via Tap to Pay:
When creating a payment, select the account where the “Tap to Pay” feature is enabled.
Tap the Tap to Pay button.
A payment acceptance window will open.
The client taps their card, smartphone, or smartwatch against the Sunmi device to complete the payment.
Printing Receipts, Invoices, and Labels
Certain models (for example, Sunmi V3) support printing not only regular receipts but also warranty coupons or labels. To do this, you need to replace the receipt paper with the appropriate type of paper and configure the print template in RO App. Then, if necessary, you can immediately print the required document directly from the work orders or sales in the app.
How to print a document from the mobile app:
Open the desired work orders, sales, or invoices.
Tap the three vertical dots in the upper-right corner.
Tap Print Documents.
Select the desired templates and tap Print.
Sunmi + RO App in Action: Real-World Use Cases
In-Store Mobile Checkout: Sell Right by the Shelf
Here’s a simple example of how a salesperson or cashier can use Sunmi with RO Mobile App throughout the day:
Scan Items Anywhere: The employee walks through the sales floor, fills work orders or completes sales by adding products to the bill using the Sunmi camera or built-in scanner.
Launch Tap to Pay When the shopping cart is ready, the salesperson selects the appropriate account and taps the Tap to Pay button.
One-touch payment: The customer simply taps their phone or card against the Sunmi terminal.
Instant Print & Close: The payment is processed, and the salesperson prints the paper receipt and any other documents for the client via the built-in printer immediately prints
Key Benefits
Full mobility (“all-in-one”): Sunmi with RO Mobile App replaces a separate barcode scanner, a PC running a business CRM, a bank terminal, and a receipt printer. Everything fits into a single handheld POS terminal.
No waiting in line: Clients can be checked out instantly right next to the product shelf, anywhere in the sales floor, or in the warehouse. Sales associates no longer need to run back and forth with products to a stationary account.
No unnecessary steps: The process is fully automated—from scanning to printing the receipt—which saves the employee time and eliminates errors caused by manually entering amounts.
Field Service & Repairs: Managing Complex Work Orders
A manager or technician at a service location can not only sell a product but also enter the work performed or materials used into RO Mobile App to generate a comprehensive invoice. After payment via the NFC module, the device instantly prints not only a receipt but also a warranty ticket for the client.
On-the-Go Sales: Delivery, Couriers, and Pop-Up Shops
Thanks to 3G/4G support and a built-in battery, a courier or field salesperson can work autonomously outside the office. They scan the delivered products right on the spot, accept contactless payments via Tap to Pay, and immediately print a receipt for the client.
On-Site Services with Photo Proofing
An on-site specialist or technician can work completely independently right at the client’s location. In addition to recording materials used and accepting payments via Tap to Pay, Sunmi’s built-in camera allows them to take photos of the completed work and upload them to the work order’s event feed in RO Mobile App for reporting purposes. Afterward, the technician prints an official receipt and a work completion report or warranty card for the client on the spot.
Automation powered by Sunmi and RO Mobile App is all about convenience—for both your business and your clients. Salespeople no longer have to juggle a computer, account terminal, and payment terminal—all the tools they need now fit in the palm of their hand. It’s a modern, flexible, and mobile approach that lets them sell faster, accept payments more conveniently, and instantly issue receipts right where the client needs them.
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