Xiaomi’s UniPay: A Complete Guide to the Payment Service Ecosystem

If you’re a big user of Xiaomi smartphones or smart devices, you’ve probably heard a mention of UniPay, a tool that often raises questions about how it differs from Mi Pay, how it works in Russia and other countries, and why it’s called a “universal payment solution” for the brand ecosystem. In this article, we’ll take a closer look at what’s behind the UniPay Xiaomi name, how to set it up on different devices, and what advantages it has over alternative payment methods.

It’s important to understand that UniPay is not just another payment application, but part of Xiaomi’s strategy to bring all of its financial transactions together in one ecosystem, from contactless payments via smartphone to purchases from brand stores and even managing brand subscriptions, all of which can be done through a single interface. However, the service has nuances depending on the region, banks supported and device models. Next, we’ll explain how to avoid typical setup errors and what UniPay features remain unavailable for Russian users after the company leaves the market.

What is Xiaomi UniPay and why is it needed?

UniPay (or Xiaomi UniPay) is a payment system developed by Xiaomi to integrate all financial transactions within its ecosystem, unlike Mi Pay, which was focused primarily on contactless payments through the use of the Internet. NFC, UniPay is positioned as a more versatile solution. It integrates:

• 💳 Contactless payments via smartphones, smartwatches and Xiaomi bracelets (including Redmi models and other devices) POCO)
• 🛒 Payment for purchases in official Xiaomi stores (including Mi Store and affiliate sites)
• 🔄 Managing subscriptions for brand services (e.g. Mi Cloud or Xiaomi) TV+)
• 💰 Transfers between users of the ecosystem (in some regions)
• 🎁 System of bonuses and cashback for purchases in partner stores

The main advantage of UniPay is deep integration with firmware MIUI. For example, linked cards automatically appear in the Quick Settings menu and payment history syncs with your Mi Account, but after Mi Pay’s rebranding to UniPay (which took place in 2022), many users confuse these services. UniPay is an evolutionary development of Mi Pay with advanced features, not a standalone product.

In Russia and some other countries, UniPay functionality is limited due to regulatory requirements. P2P-The list of supported banks is much narrower than in China or India, but the service remains useful for paying in offline stores through the Internet. NFC and shopping at the Mi Store.

UniPay differs from Mi Pay and other payment systems

Many users mistakenly believe that UniPay and Mi Pay are the same thing, and in fact there are key differences that are important to consider when choosing a payment instrument.

UniPay’s key advantage over Google Pay or Apple Pay is its close integration with the Xiaomi ecosystem: for example, discounts for brand device owners are automatically applied to the Mi Store through UniPay, and purchase history is stored in your personal account. In addition, the service supports payment through Xiaomi smartwatches and bracelets even without connecting to a smartphone (provided that the bank card is tied directly to the device).

However, there are drawbacks: in Russia, for example, UniPay only works with a limited list of banks (mainly Sberbank, Tinkoff and VTB), while Google Pay supports almost all major financial institutions, and contactless payments through UniPay require unlocking the device (unlike Google Pay, where two clicks of the power button are enough).

⚠️ Note: If you use custom firmware (such as LineageOS or Pixel Experience), UniPay may not work due to lack of certificates. MIUI. In this case, the alternative will be Google Pay or banking applications with Host Card Emulation (HCE).

What Xiaomi devices support UniPay

UniPay is not available on all Xiaomi devices, and requires:

• 📱 Smartphone with chip NFC and official firmware MIUI (version no less than 12.5)
• ⌚ Smart watches or bracelets with payment support (for example, Xiaomi Watch) S3, Redmi Watch 3 Active)
• 🌍 Region of Mi Account where the service is officially supported (list of countries limited)
• 💳 Bank card from the list of partners (in Russia - Sberbank, Tinkoff, VTB, Alfa-Bank)

Here is the full list of smartphone models that are guaranteed to support UniPay (as of 2026):

For smartwatches and bracelets, the list of supported devices is still narrow, and UniPay currently only works on the following models:

• Xiaomi Watch S3 (requires firmware 2.1.0.0 or later)
• Xiaomi Watch 2 Pro (for UnionPay cards only in China)
• Redmi Watch 3 Active (limited functionality)

If your device is not on this list but is equipped with a chip NFC, You can try alternative ways:

1. Open Settings. → Connections and sharing → NFC

2.Make sure Contactless Payments are active

3. Check for the UniPay option in the Settings menu → Annexes → Systemic

4. Update the firmware to the latest version of MIUI-->

How to set up UniPay on Xiaomi smartphone: step-by-step instructions

UniPay setup takes no more than 5 minutes, but requires several mandatory steps. Important: before you start, make sure that your smartphone is connected to the Internet (preferably via Wi-Fi), and it has the latest version installed. MIUI. If updates are not available, check the Mi Account region – it should match your country of residence.

Instructions for setting:

1. Open the UniPay app. It's pre-installed on all supported devices. If you can't find it, check the Tools folder or search the app menu.
2. Please note the personal data processing clause, which indicates that payment information may be shared with Xiaomi partners (e.g. banks).
3. Add a bank card. Click Add a card and scan it with a camera or enter data manually. Supported cards Mastercard, Visa and World (in Russia).
4. The bank will send you a card. SMS In some cases, a support call may be required to activate contactless payments.
5. Set up the unlock method. For security, UniPay requires unlocking the device before each payment. Choose the convenient method: Fingerprint, Face Recognition, or S.IN-code.

After adding the card, it can be used for payment in stores with terminals that support the payment. NFC. For that:

1. Unlock your smartphone.
2. Bring it to the terminal (distance not more than 5 cm).
3. Wait for the sound signal and vibration – the payment was successful.

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If the terminal doesn't recognize your card, try turning off the Quick Pay feature in UniPay settings and try again. Sometimes it helps to reboot your smartphone.

⚠️ Note: On devices with root access or unlocked bootloader, UniPay may not work due to security requirements, in which case banking applications (such as SberBank Online) will become a more reliable alternative.

How to Pay with UniPay on Xiaomi Smart Watches

Payment via Xiaomi smartwatches or bracelets is convenient in situations where the smartphone is dead or uncomfortable to reach (for example, while jogging or going to the store). However, you need to make additional adjustments, since UniPay works on wearable devices on a different principle than on smartphones.

Here's what you'll need to set up:

• 📱 Xiaomi smartphone with Mi Fitness app installed (or Xiaomi Wear for new models).
• ⌚ Smart watch or bracelet from the list of supported devices.
• 💳 Bank card linked to Mi Account (in Russia – only Sberbank or Tinkoff).

Step-by-step:

1. Open the Mi Fitness app on your smartphone and go to Devices section.
2. Select your watch and click UniPay (or Contactless Payments).
3. Follow the instructions on the map anchor screen. You'll need to enter CVC-code and confirm the operation through SMS.
4. Once successfully pegged, the watch will have a notification, and now it can be used to pay without a smartphone.

To pay for the purchase from the clock:

1. Twice click the physical button (or make a gesture if the button is not there).
2. Choose a linked card (if there are several).
3. Hold the clock to the terminal and wait for the signal.

UniPay Security: How Reliable is the Service

Payment security is always a topic, especially when it comes to storing bank data on a device. Xiaomi claims UniPay uses the same security standards as Apple Pay or Google Pay, but there are nuances worth knowing about.

The main security measures in UniPay:

• 🔒 Tokenization: Your card number is not passed to the seller – a unique token is used instead.
• 🛡️ Hardware isolation: Card data is stored in an embedded secure element (eSE) chip, separate from the main system.
• 🔐 Two-factor authentication: Device unlocking is required for each payment.
• 📍 Geolocation verification: In case of suspicious transactions, the bank may request location confirmation.

There are also some vulnerabilities that Xiaomi has been silent about:

• 🚨 On devices with an unlocked bootloader, eSE protection may be compromised.
• 🔄 When you change the region of your Mi Account, the associated cards are blocked (reconfigures reconfiguration is required).
• 📵 In some countries (for example, Russia) there is no support. 3D-Secure Online payments via UniPay.

To improve safety, we recommend:

1. Enable the option to Require PIN for each payment in the settings

2. disable Fast Unlock for payments

3. Regularly check the transaction history in the banking application

4.Do not use UniPay on custom firmware devices-->

⚠️ Note: If you lose your smartphone or smartwatch with a tied card in UniPay, immediately block it through a banking app or website.Unlike Google Pay, UniPay does not have a remote card lock feature via Mi Account.

UniPay’s problems and mistakes: how to solve them

Even with the right setup, users sometimes encounter errors when working with UniPay. Let's look at the most common problems and ways to solve them.

If your problem isn’t listed in the table, try the following generic steps:

1. Reset the device.
2. Remove the card from UniPay and add it again.
3. Check if the Power Saving mode is on – it can block background work NFC.
4. Update the Mi Pay Service app to Google Play (if installed).

For root-access or custom firmware devices, the only working solution is often to use alternative payment systems such as Google Pay or banking applications with support for the payment system. HCE.

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If UniPay is still not working after all the manipulations, check if the service is blocked in your region, for example, in Russia from 2022, some features (for example, in the Russian Federation, P2P-Transfers) were disabled due to sanctions restrictions.

FAQ: Frequent questions about UniPay Xiaomi