Xiaomi Watch S5 46mm Pairing Guide

This guide walks you through setting up and pairing the Xiaomi Watch S5 46mm with your phone, covering both Android and iOS devices. You’ll learn how to install the right app, complete the Bluetooth pairing, and get your watch syncing notifications and fitness data in about five minutes.

What You’ll Need

• Xiaomi Watch S5 46mm (charged above 20%)
• Smartphone running Android 8.0+ or iOS 12+
• Stable Wi-Fi or mobile data connection for the initial setup
• The Mi Fitness app (available on Google Play and Apple App Store)
• Your Xiaomi account credentials, or create one if you don’t have them

Step-by-Step

1. Charge the watch – Place the watch on its magnetic charger and let it reach at least 20% battery before starting. This prevents mid-setup shutdowns.
2. Power on the watch – Press and hold the side button for 2–3 seconds until the Xiaomi logo appears. If it doesn’t turn on, connect the charger and wait a minute.
3. Install Mi Fitness – On your phone, open the app store (Google Play for Android, App Store for iOS) and search for “Mi Fitness.� Download and install the official app by Xiaomi. Avoid third-party clones.
4. Create or sign in to your Xiaomi account – Open Mi Fitness, tap “Sign inâ€� and enter your Xiaomi account credentials. If you don’t have one, tap “Sign upâ€� and follow the prompts. This account syncs your data across devices.
5. Enable Bluetooth and location – On your phone, turn on Bluetooth. On Android, also enable location services (GPS) because the app uses them to scan for nearby devices. On iOS, ensure Bluetooth is on and the app has location permission.
6. Start pairing from the app – In Mi Fitness, tap the “Devices� tab (usually at the bottom right). Tap the “+� icon or “Add Device.� The app will start scanning for nearby Xiaomi devices.
7. Select your watch – When “Xiaomi Watch S5� appears in the list, tap it. If you see multiple entries, choose the one with “S5� and “46mm� in the name.
8. Confirm the pairing code – The watch will display a 6-digit code. Check that the same code appears on your phone screen, then tap “Pairâ€� or “Confirmâ€� on both devices. This ensures you’re connecting to the correct watch.
9. Grant permissions – The app will ask for permissions to access notifications, contacts, and location. Tap “Allow� for each. These permissions are needed for features like call alerts and message previews.
10. Wait for sync – The watch will sync time, settings, and firmware. This may take 1–3 minutes. Do not close the app or turn off Bluetooth during this time.
11. Complete setup – Once the sync finishes, you’ll see a “Successâ€� or “Doneâ€� message. The watch will now show the correct time and date. You can now customize watch faces and manage notifications from the app.

Common Mistakes

• Using the wrong app – The Xiaomi Watch S5 pairs with Mi Fitness, not the older Mi Fit or Zepp Life apps. Using the wrong app leads to connection failures.
• Bluetooth off or not discoverable – The watch is only discoverable during the first 5 minutes after power-on or after resetting. If you take too long, the watch may stop broadcasting. Restart the watch to make it discoverable again.
• Ignoring location permission on Android – Without location permission, the app cannot scan for BLE devices. Always enable location services during pairing.
• Pairing directly in phone settings – Some users try to pair via the phone’s Bluetooth settings. This will not work for the Xiaomi Watch S5; you must pair through the Mi Fitness app.
• Watch already paired to another phone – If the watch was previously paired, it may not show up. Reset the watch (Settings > System > Disconnect) before trying again.

Tips

• Keep the app updated – Regularly update Mi Fitness from the app store to ensure compatibility with the latest watch firmware.
• Check watch firmware – After pairing, go to the watch’s Settings > System > About and check for firmware updates. Installing updates can fix bugs and improve battery life.
• Customize notifications – In the app, go to “Notificationsâ€� and select which apps can send alerts to your watch. This saves battery and reduces distractions.
• Use the same Xiaomi account – If you switch phones, log into the same Xiaomi account in Mi Fitness to restore your watch settings and history.
• Keep the watch close – During pairing, keep the watch within 1 meter of your phone. Walls and other Bluetooth devices can interfere.

Troubleshooting

Watch not showing up in the app: First, make sure the watch is on and within range. If it still doesn’t appear, restart the watch by holding the side button for 10 seconds until the logo appears. Also, force-close the Mi Fitness app and reopen it. On Android, toggle Bluetooth off and on, and ensure location is enabled. If the problem persists, reset the watch: go to Settings > System > Disconnect (or Factory Reset) and try again.

Pairing fails with an error: This often happens when the watch is already paired to another phone. On the watch, go to Settings > System > Disconnect to unpair it. Then restart the watch and try again. Also, check that your phone’s Bluetooth is not connected to other devices that might interfere.

App says “Device not supported�: Ensure your phone meets the minimum OS requirements (Android 8.0+ or iOS 12+). If it does, check that you have the latest version of Mi Fitness. Some older phones may have Bluetooth 4.0 which is not compatible; the watch requires Bluetooth 5.0 for best performance.

Notifications not arriving on the watch: After pairing, you must enable notification access. On Android, go to the Mi Fitness app > Notifications > turn on “Notification access� and then select the apps you want. On iOS, go to Settings > Bluetooth, tap the “i� next to the watch, and enable “Show Notifications.� Also, ensure the watch is not in Do Not Disturb mode.

Watch battery drains quickly after pairing: This is normal for the first 24 hours as the watch syncs data and updates firmware. If it continues, check that you haven’t enabled always-on display or excessive notifications. Also, ensure the watch firmware is up to date.

Frequently Asked Questions

Can I pair the Xiaomi Watch S5 with an iPhone?

Yes, the Xiaomi Watch S5 works with iPhones running iOS 12 or later. Use the Mi Fitness app from the App Store. Some advanced features like replying to messages may be limited on iOS, but core functions like calls, notifications, and fitness tracking work.

Does the watch need a SIM card?

No, the Xiaomi Watch S5 is not a standalone cellular device. It relies on Bluetooth to connect to your phone. You cannot make calls or receive messages without the phone nearby.

How do I reset the watch if I forget the PIN?

If you set a PIN lock and forget it, you must reset the watch. Go to Settings > System > Factory Reset. This will erase all data and unpair the watch. After reset, you can pair it again with your phone.

Can I use the watch with multiple phones?

No, the watch can only be paired with one phone at a time. To switch phones, you must unpair from the current phone (Settings > System > Disconnect) and then pair with the new phone.

Why is my watch not showing call notifications?

Check that the Mi Fitness app has permission to access your phone’s contacts and calls. On Android, go to Settings > Apps > Mi Fitness > Permissions and enable “Phone.â€� On iOS, go to Settings > Bluetooth > tap the “iâ€� next to the watch and enable “Show Notifications.â€� Also, make sure the watch is not in Do Not Disturb mode.

How do I update the watch firmware?

Firmware updates are pushed through the Mi Fitness app. When an update is available, you’ll see a notification in the app. Go to the Devices tab, tap on your watch, and select “Firmware Update.â€� Ensure the watch is charged above 50% and keep it near your phone during the update.

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