Important Safety Information & Warnings
Warning:
- This product is not a medical device. The smartwatch and its applications are not available for diagnosis, treatment, or preventive therapy of diseases.
- Consult a medical professional before changing your exercise or sleep habits to avoid serious injury.
- The manufacturer reserves the right to modify and improve the functional descriptions of this user guide, as well as to update the content on an ongoing basis without notice. This user guide is for reference only.
Cautions:
- Do not shower with hot water or place the smartwatch under high temperature; otherwise, the water resistance of the smartwatch will be damaged.
- Do not charge when wet or with water.
Product Overview
The Xiaomi Mijia Sports Smart Watch I109 is designed to help you monitor your health and track your fitness activities. It features a 1.27-inch TFT HD screen, Bluetooth 5.2 connectivity, and a variety of functions including heart rate, blood oxygen, and blood pressure monitoring, multiple sports modes, and Bluetooth calling.

Package Contents
- Smart Watch x1
- User Manual x1
- Magnetic USB Charger Cable x1
Setup Guide
Warm Reminder:
This product requires the companion APP to function correctly. Connect to Bluetooth through the APP, as the watch cannot connect to Bluetooth alone.
1. Charging the Smart Watch
Before first use, ensure your smartwatch is fully charged. Align the eject pins of the magnetic charging cable with the 2 charging contacts on the main unit. Alternatively, plug the charging cable into a USB adapter (5V 1A). A charging icon will appear on the smartwatch's screen. If the smartwatch is not used for a long time, charge it once a month. Do not use a power adapter with an output current greater than 2A, as this may damage the smartwatch.

2. Application Installation and Bluetooth Connection
To download the companion app, search for "fitcloudpro" in the Google Play Store (for Android devices) or the Apple App Store (for iPhones). Alternatively, scan the QR code provided in the original manual to download and install the application.
- Compatibility: Android 5.0 and above, iOS 10.0 and above, Bluetooth 5.0 and above.
- Binding the Smartwatch: Open the app and click on the option to bind a device. Select your smartwatch from the list. If multiple devices are nearby, choose the MAC address corresponding to your smartwatch. A successful connection will display the Bluetooth icon at the top of the smartwatch screen.
Operating Instructions
Basic Navigation
- Wake Screen: Press the side button or lift your hand.
- Switch Interface (Home Page): Press and hold for 3 seconds on the home page.
- Information Bar: Slide up from the home screen.
- Control Center: Slide down from the home screen.
- Sports Data: Slide left from the home screen.
- Function List: Slide right from the home screen.
Function Descriptions
- Replace Watch Dial: Long press the main page for 3 seconds to enter the watch dial replacement page. You can also download replacement dials via the app.
- Control Center: Access settings like Do Not Disturb mode, Brightness Adjustment, Settings, Find My Phone, System, and Shutdown.
- Brightness Adjustment: Tap the brightness adjustment icon in the Control Center to adjust screen brightness.
- Do Not Disturb Mode: Tap the Do Not Disturb icon in the Control Center to activate/deactivate.
- Find My Phone: Tap the Find My Phone icon in the Control Center; your phone will vibrate to alert you.
- System: View system version information from the Control Center.
- Settings: Access various function settings from the Control Center.
- Information: Access audio mode by tapping the audio icon in the Control Center.
- Sport Data: View steps, calories, and kilometers.
- Heart Rate: Start measurement and view data on the heart rate page (slide twice left).
- Call Function: Connect to audio Bluetooth. Enter phone numbers on the dial to make calls. Long press 7 and 9 for * and #.
- Sport Mode: Select your preferred sport mode from the list function (slide right). The watch supports over 100 sport modes.
- Weather: View current weather conditions.
- Music Control: Adjust music playback (upper and lower song titles).



Other Functions
- Alarm Clock: Set reminders on the watch.
- Call Reminder: Receive notifications for incoming calls.
- Drink Water Reminder: Get reminders to drink water.
- Sedentary Reminder: Receive alerts for prolonged inactivity.
- Remote Camera: Control your phone's camera remotely (start from APP).
- Find Phone: Locate your paired phone.
- Timer: Use the built-in timer function.

Care and Maintenance
- Keep the smartwatch clean and dry.
- Avoid exposing the smartwatch to extreme temperatures or direct sunlight for prolonged periods.
- Clean the charging contacts regularly to ensure proper charging.
- If the smartwatch is not used for an extended period, charge it at least once a month to maintain battery health.
Troubleshooting
1. Inaccurate Heart Rate Measurement
The smartwatch uses light reflection to measure heart rate. For accurate readings, ensure the smartwatch is worn snugly on your wrist. If not worn tightly, ambient light can interfere with the sensor, affecting measurement accuracy.
2. Bluetooth Connection Issues
If you experience difficulty connecting via Bluetooth:
- Ensure both your phone's Bluetooth and the smartwatch's Bluetooth are turned on.
- Make sure the smartwatch is not connected to another account.
- Keep the smartwatch and your phone as close as possible during the Bluetooth search and connection process.
3. App Notifications Not Pushing
If you are not receiving messages or notifications:
- Ensure the companion app is running in the background on your phone.
- Check your phone's settings to allow the app to push messages and operate in the background.
4. Inaccurate Blood Oxygen Data
To ensure accuracy when testing blood oxygen, remain relaxed and still during the test. Ensure the smartwatch and your heart are at the same height. Avoid talking during the test. Remember, this function provides data for reference only and should not be used for medical purposes.
Specifications
| Feature | Specification |
|---|---|
| Model | I109 |
| Brand Name | XIAOMI |
| CPU Model | RTL8763EWE |
| CPU Manufacturer | MediaTek |
| Bluetooth Version | 5.2 |
| Screen Size | 1.27 inch |
| Screen Material | TFT |
| Resolution | 360*360 |
| Touch Screen | Yes |
| Battery Capacity | 200-300mAh (Nominal: 200mAh) |
| Battery Type | Lithium polymer battery (Model: 502020) |
| Battery Power Parameter | 0.74wh |
| Nominal Voltage | 3.7V |
| Battery Life | 5-7 days (typical use) |
| Waterproof Grade | Life Waterproof (IP68) |
| Movement Type | Electronic |
| Case Material | Alloy |
| Band Material | Silica Gel |
| Band Detachable | Yes |
| Application Age Group | Female |
| App Name | da fit / fitcloudpro |
| System Compatibility | Android OS, iOS (Android 5.0+, iOS 10.0+) |
| Metrics Measured | Heart Rate Monitor, Blood Oxygen Monitor, Sleep Monitor, Blood Pressure Monitor |
| Activity Tracked | Steps Tracker, Distance Tracker, Calorie Tracker, Activity Tracker |
| Functions | Passometer, fitness tracker, sleep tracker, Message Reminder, Call Reminder, Answer Call, Dial Call, Push Message, 24 hour instruction, Chronograph, Alarm Clock, World Time, Calorie Counter, Permanent Calendar, Multiple Time Zone, week, Phase of the Moon, Month, Heart Rate Tracker, Interactive Music, Calendar, Countdown, Calculators, Music Playback, Voice Assistant, Sedentary/Drinking Reminder, Remote Camera, Exercise Mode, Female Function |
| Languages | English, Russian, Spanish, Polish, Portuguese, Turkish, Italian, French, German, Korean, Japanese, Hebrew, Dutch, Arabic, Indonesian, Greek |
| Operating Temperature | 0-40 °C |
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller/manufacturer directly. Keep your proof of purchase for any warranty claims.
A user manual in PDF format is available for download. You can access it here.