Introduction
The KEEPONFIT Smart Watch IDW21 is a versatile fitness tracker designed to enhance your active lifestyle and keep you connected. Featuring a 1.85-inch HD full touchscreen display and an aluminum alloy case, this smartwatch offers a wide range of functionalities including health monitoring, sports tracking, communication features, and smart assistant integration. This manual provides essential information for setting up, operating, and maintaining your device.
Video Description: This video provides an overview of the KEEPONFIT Smart Watch IDW21, highlighting its key features such as Alexa integration, fitness tracking capabilities, and waterproof design. It demonstrates the watch's interface and various functions in action.
What's in the Box
- 1x KEEPONFIT Smart Watch IDW21
- 1x Charging Cable
- 1x User Manual
Setup
1. Charging the Smart Watch
Before initial use, fully charge your smartwatch. Connect the magnetic charging cable to the charging contacts on the back of the watch and plug the USB end into a power adapter (not included) or a computer's USB port. A full charge typically takes about 2.5 hours.

Image Description: A visual representation of the KEEPONFIT Smart Watch being charged with its magnetic cable. The image highlights the 300mAh large battery capacity, low power consumption design, 5-7 days of daily Bluetooth usage, and a charging time of within 2.5 hours.
2. Downloading and Pairing the App
To unlock the full potential of your smartwatch, download the "VeryFit" app on your smartphone. The app is compatible with iOS 9.0+ and Android 6.0+ devices.
- Download the "VeryFit" app from the App Store (iOS) or Google Play (Android).
- Ensure Bluetooth and GPS are enabled on your smartphone.
- Open the "VeryFit" app, navigate to the device section, and search for "IDW21" to connect.
- Follow the on-screen prompts in the app to complete the pairing process.

Image Description: A four-step visual guide demonstrating how to connect the KEEPONFIT Smart Watch. Steps include downloading the VeryFit app, turning on Bluetooth and GPS, searching for 'IDW21' in the app, and managing the device after pairing.
Operating the Smart Watch
1. Basic Navigation
- Touchscreen: Swipe left, right, up, or down to navigate through menus and features. Tap to select.
- Side Button: Press to return to the home screen or wake the device.
- Wake Gesture: Flip your wrist to automatically wake up the screen.
2. Customizing Watch Faces
The 1.85-inch HD color display offers over 100 customizable watch face options. You can change watch faces directly on the device or through the "VeryFit" app to match your mood or style.

Image Description: A collection of diverse watch faces shown on the 1.85-inch HD touch screen of the KEEPONFIT Smart Watch, illustrating the 100+ cloud watch faces available for customization.
3. Bluetooth Calling & Smart Notifications
Once paired with your phone, the smartwatch allows you to answer and make calls directly from your wrist. You can also receive message alerts from various applications, ensuring you stay connected without needing to check your phone constantly.

Image Description: The KEEPONFIT Smart Watch displaying an incoming call, with options for answering, muting, and accessing the dial pad. Icons for common contacts, call records, and telephone dial are also visible, demonstrating Bluetooth call functionality.

Image Description: The KEEPONFIT Smart Watch screen showing a notification from WhatsApp, alongside icons for other supported messaging and social media applications, illustrating its message reminder capabilities.
4. Alexa Built-in & AI Voice Assistant
Activate Alexa or your phone's voice assistant (Siri, Google Assistant) directly from your watch. Use voice commands to set alarms, check the weather, add items to your shopping list, and more.

Image Description: The KEEPONFIT Smart Watch displaying the Alexa listening interface, with speech bubbles showing example commands such as "Alexa, set an alarm at 9 a.m." and "Alexa, add ice cream to my shopping list."
5. Health Monitoring
The smartwatch continuously monitors various health metrics to help you stay informed about your well-being. Note: Measurement results are for reference only and cannot be used for medical diagnosis.
- Heart Rate Monitoring: Tracks your heart rate 24/7.
- Blood Oxygen (SpO2) Detection: Measures your blood oxygen levels.
- Breathing Training: Guides you through breathing exercises for relaxation.
- Sleep Tracking: Monitors your sleep patterns and quality.
- Stress Monitor: Helps you check your stress levels.
- Menstrual Cycle Tracker: Assists in tracking menstrual cycles.

Image Description: A composite image showing the KEEPONFIT Smart Watch displaying different health metrics such as heart rate (86 bpm), SpO2 (94%), stress level (29 Relax), sleep duration (6h 25m), breathing training, and menstrual cycle tracking.
6. Sports Modes & Activity Tracking
The smartwatch supports over 100 sports modes, accurately recording your steps, calories burned, and distance. It provides detailed insights into your daily activities and workout performance.
- Includes modes for walking, running, cycling, hiking, yoga, and many more.
- Tracks real-time activity status and health data during workouts.

Image Description: A person's arm wearing the KEEPONFIT Smart Watch partially submerged in water, emphasizing its IP68 waterproof feature. Icons representing various sports modes are displayed at the bottom.
7. Other Features
The IDW21 Smart Watch includes additional convenient features:
- Find Phone: Locate your paired smartphone.
- Alarms: Set multiple alarms.
- Stopwatch & Timer: For precise timing.
- Drink Water Reminder: Prompts you to stay hydrated.
- Remote Camera Control: Take photos on your phone remotely.
- Weather: Check current weather conditions.
- Calculator & Calendar: Basic utility tools.
- Games: Simple games for entertainment.
- Flashlight: Use the screen as a light source.
- Music Control: Control music playback on your phone.
Maintenance
1. Cleaning Your Smart Watch
Regularly clean your watch to ensure optimal performance and hygiene. Use a soft, lint-free cloth to wipe the screen and strap. For stubborn dirt, a slightly damp cloth can be used. Avoid harsh chemicals or abrasive materials.
2. Water Resistance Guidelines
The KEEPONFIT Smart Watch IDW21 is IP68 water-resistant and dust-proof. This means it is suitable for use in swimming pools, showers (cold water), and shallow water. It is not suitable for diving, sea swimming, or use in a sauna. After exposure to water, use the one-click drain function to remove any water from the activity tracker.
3. Battery Care
To prolong battery life, avoid exposing the watch to extreme temperatures. Charge the device using the provided charging cable. The 300 mAh battery provides up to 7 days of daily usage, depending on actual use and other factors. A power-saving mode is available to extend endurance.
Troubleshooting
- Watch not turning on: Ensure the watch is fully charged. Connect it to the charging cable and allow it to charge for at least 10 minutes before attempting to power it on.
- Unable to pair with app: Make sure Bluetooth and GPS are enabled on your phone. Ensure the watch is within range of your phone. Restart both the watch and the phone, then try pairing again. Check if the "VeryFit" app is updated to the latest version.
- Inaccurate health data: Ensure the watch is worn snugly on your wrist, not too tight or too loose. Clean the sensor on the back of the watch. Note that environmental factors and individual physiology can affect readings.
- Notifications not appearing: Check the "VeryFit" app settings to ensure notifications are enabled for the desired applications. Also, verify that your phone's notification settings allow the "VeryFit" app to send alerts.
- Short battery life: Reduce screen brightness, disable unnecessary features like continuous heart rate monitoring if not needed, and ensure the watch is not constantly searching for a Bluetooth connection if disconnected from the phone.
Specifications
| Feature | Detail |
|---|---|
| Model Name | IDW21 |
| Screen Size | 1.85 Inches |
| Case Material | Aluminum Alloy |
| Band Material | Silicone |
| Battery Capacity | 300 Milliamp Hours |
| Battery Life (Average) | 7 days |
| Charging Time | 2.5 Hours |
| Water Resistance | IP68 (1.5 Meters) |
| Connectivity | Bluetooth |
| Compatibility | iOS 9.0+ / Android 6.0+ |
| Special Features | Alexa Built-in, 100+ Sports Modes, Heart Rate, SpO2, Stress, Sleep Monitor, Bluetooth Calling, Notifications, Remote Camera, Music Control, Calculator, Calendar, Games, Flashlight, Find Phone, Menstrual Cycle Tracker, Drink Water Reminder, Sedentary Reminder. |
Warranty
The KEEPONFIT Smart Watch IDW21 comes with a 1-year manufacturer's warranty. Please retain your proof of purchase for any warranty claims. The warranty covers manufacturing defects but does not cover damage caused by misuse, accidents, or unauthorized modifications.
Support
For further assistance, please refer to the "VeryFit" app's help section or visit the official KEEPONFIT website. You can also contact customer support through the contact information provided in the app or on the product packaging.