How it works NFC Xiaomi Watches: A Complete Guide to Setup and Use

Xiaomi smart watches have long ceased to be just fitness trackers — they have become full-fledged assistants in everyday life. NFC-It's a technology that allows you to use a watch to make contactless payments, unlock doors, transmit data, and even control a smart home. NFC And why is it available on some models, but not on others?

In this article, we will discuss in detail:

• 🔹 What Xiaomi Watches Support NFC and how they differ
• 💳 How to set up contactless payments via Mi Pay, Google Pay and other services
• 🔐 Hidden opportunities NFC: From unlocking your smartphone to driving
• ⚡ Frequent problems and ways to solve them (from payment errors to communication failures)

If you're just planning a purchase or you're having trouble setting up, you'll find all the answers here. And for those who want to maximize the potential of their watches, we've prepared unique life hacks for the use of these watches. NFC non-standard.

What Xiaomi Watches Support NFC: full-length

Not all Xiaomi smartwatches are equipped with a module NFC. This feature is available primarily in premium and mid-budget models starting in 2019, below is the current list of devices with support for the technology (as of 2026).

It is important to note that the functionality NFC It depends not only on the model, but also on the region of sale. S3 In the global version, Google Pay is supported, while in Chinese it is only Mi Pay and local transport cards!

⚠️ Attention: C-hour NFC, Buying in China may not work with foreign payment systems due to regional restrictions).

If your model is not listed, it doesn't always mean there's no module. For example, some versions of the Mi Band 7 Pro have a hidden one. NFC-a chip that activates after a firmware update to check for a module:

1. Open the Mi Fitness or Zepp app.
2. Go to the Device Profile → Settings → Contactless payments.
3. If there is no section — NFC Your model is not provided.

How it works NFC Xiaomi watches: technical details

Technology NFC (Near Field Communication in Xiaomi Watches Based on Standard ISO/IEC 14443, It's used in bank cards and transportation systems, unlike Bluetooth or Wi-Fi, NFC working up 10 See what makes it ideal for secure transactions.

There are two types of watches. NFC-module:

• 📶 Passive NFC — It only works when you reach the terminal (for example, to unlock the door) and does not require battery power.
• ⚡ Active. NFC (EMV) — Supports contactless payments and two-way data transfers. Consumes more energy.

When paying, the watch simulates a bank card by sending an encrypted token to the terminal, which takes place in 3 stages:

1. Initialization – The terminal sends a request for the watch.
2. Authentication – The watch confirms authenticity through dynamic code (generated for each transaction).
3. Confirmation – the bank processes the payment and sends a response.

The transaction speed is 0.1–0.3 seconds, faster than using a physical card, but it requires:

• 🔋 Battery charge of at least 10% (otherwise) NFC shut down).
• 📱 Link to your smartphone via Mi Fitness or Zepp.
• 🌍 Stable Internet connection (for the first setup of payments).

Interesting fact: in the watch Xiaomi Watch 2 Pro NFC-The antenna is built into the back cover of the case, which improves the stability of communication. In earlier models (for example, the Mi Watch), the antenna is located closer to the display, which sometimes requires more accurate positioning of the clock at the terminal.

Configure contactless payments via Mi Pay and Google Pay

Principal application NFC Xiaomi watches are contactless payments, depending on the model and the region, different services are available: Mi Pay (China), Google Pay (global versions), Zepp Pay (for Amazfit devices.

1. Mi Pay setup (for Chinese versions)

Mi Pay only works with Chinese bank cards (UnionPay) to activate:

1. Open the Mi Fitness app on your smartphone.
2. Go to Profile. → Devices → [Your watch] → Contactless payments.
3. Choose Mi Pay and follow the instructions for linking the card.
4. Confirm the transaction via SMS from the bank.

After setting up, a successful binding notification will appear on the clock.

• 💳 Twice click the physical button (or use a gesture if the button is not there).
• 🔄 Bring the clock to the terminal at a distance of 2-5 cm.
• ✅ Wait for vibration and sound signal.

2. Google Pay setup (global versions)

For Wear devices OS (For example, Xiaomi Watch 2 Pro):

1. Install Google Pay on your smartphone.
2. Add the card to the app and confirm it.
3. On the clock, open Settings. → Contactless payments → Google Pay.
4. Synchronize the data from the phone.

⚠️ Note: In Russia and some CIS countries, Google Pay may not work due to sanctions restrictions, in which case use local alternatives (for example, World Pay or Samsung Pay, if the watch supports the watch).

Limit on one transaction through NFC the hours usually coincide with the limit of the bank card (for example, up to 5,000) ₽ without entering a PIN code in Russia. For the amounts above, you will need confirmation on your smartphone.

Hidden functions NFC: Unlocking the phone, transport, smart home

Payments are not the only application NFC Let's look at less obvious but useful scenarios.

1. Unlocking the smartphone

If your phone is on Android 8.0+ and supports Smart Lock, you can configure automatic unlock when the clock is approaching:

1. On your smartphone, go to Settings → Security → Smart Lock → Reliable devices.
2. Add your watch to the list.
3. Enable the option to unlock by NFC (if available).

The phone will unlock when the clock is within a radius of 5-10 cm.

Transport cards (metro, buses)

In some regions (Moscow, Beijing, Hong Kong) Xiaomi watches can be used instead of a transport card:

• 🚇 Moscow: Troika cards are supported (requires a binding via Metro Moscow).
• 🚌 Beijing: Working with Yikatong (set up in Mi Fitness).

For activation:

1. Open the transport operator application.
2. Select the option Add to the device → Smart watches.
3. Hold the watch to the back of the phone for synchronization.

💡

If the transport card is not tied, try updating the watch firmware to the latest version.In Xiaomi Watch S3 Support for transport cards appeared only in the update from March 2026.

3.Managing a smart home

With help. NFC You can quickly run scripts in Mi Home:

• 💡 Turn on the lights when you return home (watch as a trigger).
• 🔌 Manage sockets or air conditioning.

To set up:

1. In Mi Home, create automation with a condition NFC-marker.
2. Tie the tag to the clock (via Settings) → NFC → Smart home).

4. Transfer of contacts and files

Between the clock and the smartphone (or other devices with a NFC) exchange:

• 📇 Business cards (vCard).
• 📎 Links or short text notes.

For this:

1. Open the menu on the clock NFC → Transmit data.
2. Select a file and transfer the watch to another device.

💡

NFC Xiaomi supports not only payments, but also interaction with IoT devices, the main thing is to check compatibility with specific services in your region.

Frequent problems with NFC And how to solve them.

Even in the most advanced Xiaomi models, users are faced with errors. NFC. Let’s look at typical situations and ways to eliminate them.

1. NFC It does not turn on or detect terminals.

Possible causes and solutions:

2. Payment errors

If the terminal is making an error:

• 🛑 "Card not supported" → Check if the card is added to the Mi Pay/Google Pay.
• 🔄 "Try again" → Restart the clock and terminal.
• 🔋 "Not enough charge" → Connect the watch to charging for 10 minutes.

3. NFC runaway

If the connection is interrupted:

• 📱 Update the watch firmware and the Mi Fitness app.
• 🔄 Reset the settings. NFC: Settings → System system → Reset → Reset NFC.
• 🛠️ Check the antenna for physical damage (especially after falls).

⚠️ Note: If after the firmware update NFC Stopped working, try to roll back to the previous version using the Mi Flash Tool. S3 bug NFC was corrected in the January 2026 update (version 1.7.85).

Comparison NFC Xiaomi and other brands: which is better?

How NFC Does Xiaomi correlate with Apple, Samsung or Huawei? Let's conduct a comparative analysis on key parameters.

The main advantages of Xiaomi:

• 💰 Price: 2-3 times cheaper than Apple Watch with similar functionality.
• 🔋 Autonomy: Longer working without recharging.
• 🌍 Regional flexibility: Firmware changeability to unlock all features.

Disadvantages:

• 🛑 Mi Pay: It only works with Chinese banks.
• 🔄 Instability: In early models (until 2022) there are bugs with the NFC.

If you want maximum compatibility with foreign services, it is better to consider the Samsung Galaxy Watch or Apple Watch. NFC Xiaomi watches are one of the best options.

The future NFC Xiaomi watches: what to expect?

In 2026-2026, Xiaomi plans to expand its capabilities NFC According to insiders, new models will appear in their devices:

• 🆔 Digital licenses (passports, driving licenses).
• 🚗 Control of the car (opening doors, starting the engine).
• 🏥 Medical records for emergency cases.

It is also expected:

• 🔒 Improved security: Dynamic pulse authentication (instead of static PIN).
• 🌐 Global support: Mi Pay to be available outside China.

According to rumors, in Xiaomi Watch S4 (Announcement expected at the end of 2026) will be implemented UWB-chip for precise positioning, which will allow you to use the watch as a key to your home or office without attaching to the lock.

💡

NFC Xiaomi is actively developing in watches, but is still lagging behind Apple and Samsung in stability and global support.

FAQ: Answers to Frequent Questions