Introduction
This manual provides essential instructions for setting up, operating, and maintaining your TOZO S2 Smart Watch. The TOZO S2 is a versatile fitness tracker featuring Alexa built-in, heart rate and blood oxygen monitoring, sleep tracking, and a 1.69-inch HD color touchscreen. Please read this manual thoroughly to ensure optimal performance and longevity of your device.

Image: The TOZO S2 Smart Watch, showcasing its main display with health metrics.
What's in the Box
Verify that all items are present upon unboxing:
- TOZO S2 Smart Watch
- Magnetic Charging Cable
- Quick Guide & User Manual
Setup
1. Initial Charging
Before first use, fully charge your TOZO S2 Smart Watch. 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. The watch display will indicate charging status.

Image: The TOZO S2 Smart Watch being charged with its magnetic cable.
2. Download the TOZO Fit App
Search for and download the "TOZO Fit" app from the App Store (for iOS devices) or Google Play Store (for Android devices). This app is required to pair your watch with your smartphone and access all features.
3. Pairing with Your Smartphone
- Ensure Bluetooth is enabled on your smartphone.
- Open the TOZO Fit app and follow the on-screen instructions to create an account or log in.
- In the app, navigate to the device section and select "Add Device" or similar option.
- Select "TOZO S2" from the list of available devices.
- Confirm the pairing request on both your watch and smartphone.
Once paired, the watch will synchronize data with the app and display the correct time.

Image: Overview of the TOZO Fit application interface on multiple smartphones.
Operating Instructions
Basic Navigation
- Touchscreen: Swipe left, right, up, or down to navigate through menus and features. Tap to select an option.
- Side Button: Press to return to the previous screen or wake the display. A long press may access specific functions.
Alexa Built-in
The TOZO S2 features Amazon Alexa integration. Once connected to your phone via Bluetooth, you can speak to your watch using the built-in microphone to:
- Ask questions
- Play music (requires compatible music service)
- Check weather forecasts
- Set alarms and timers
- Control smart home devices (if configured with Alexa)
Smart Notifications
Receive notifications for incoming calls, text messages, and various app alerts directly on your watch. Ensure notification permissions are enabled in both your phone's settings and the TOZO Fit app.

Image: The TOZO S2 Smart Watch showing a smart notification.
Music Control
When connected to your smartphone, the TOZO S2 allows you to control music playback directly from your wrist. You can play, pause, skip tracks, and adjust volume.

Image: The TOZO S2 Smart Watch controlling music playback on a smartphone.
Features
1.69-inch HD Color Touchscreen
The watch features a vibrant 1.69-inch HD color screen with 240*280 resolution, offering clear visuals and smooth touch operation. Customize your watch face from multiple options available in the TOZO Fit app.

Image: A selection of personalized watch faces for the TOZO S2 Smart Watch.
Health Tracking
- Heart Rate Monitoring: Continuously monitors your heart rate in real-time. The TOZO Fit app provides detailed analysis and can issue elevated heart rate warnings during exercise.
- Blood Oxygen (SpO2) Monitoring: Measures your blood oxygen saturation to help you understand your physical state, especially during mental stress or intensive workouts.
- Sleep Monitoring: Provides a detailed analysis of your sleep quality by continuously recording sleep patterns, including deep sleep, light sleep, and awake time.
- Activity Tracking: Automatically records daily steps, distance, calories burned, and active minutes.
- Stress Level Monitoring: Get a daily stress management score showing your body's response to stress. The watch can guide you through breath training to improve stress levels.

Image: The TOZO S2 Smart Watch and app displaying heart rate monitoring data.

Image: The TOZO S2 Smart Watch and app displaying blood oxygen level measurement.

Image: The TOZO S2 Smart Watch and app monitoring sleep quality.

Image: The TOZO S2 Smart Watch and app displaying stress level monitoring.
20 Sports Modes
The TOZO S2 supports 20 different sports modes. Connect to your phone's GPS to track routes and get advanced fitness metrics like heart rate zones, stride length, and more during your workouts.

Image: The TOZO S2 Smart Watch showing sports tracking and icons for 20 sports modes.
5ATM Waterproof Rating
With a 5ATM waterproof rating (water resistant up to 50 meters), the TOZO S2 is suitable for swimming and can withstand sweat and splashes during daily activities.

Image: The TOZO S2 Smart Watch demonstrating its 5ATM water resistance while submerged.
Long-lasting Battery Life
The 300mAh battery provides extended usage. Expect up to 10 days of typical usage or 7 days with heavy usage. Charging time is approximately 2 hours.

Image: The TOZO S2 Smart Watch illustrating its long battery life with typical and heavy usage estimates.
Maintenance
- Cleaning: Regularly clean your watch and strap with a soft, dry cloth. If necessary, use a slightly damp cloth and mild soap, then rinse and dry thoroughly. Avoid harsh chemicals.
- Charging: Ensure the charging contacts on the watch and cable are clean and dry before charging to prevent corrosion.
- Storage: Store the watch in a cool, dry place when not in use. Avoid extreme temperatures.
- Water Exposure: While waterproof, it is recommended to dry the watch after exposure to water to maintain its condition and prevent skin irritation.
Troubleshooting
Watch Not Turning On / Not Charging
- Ensure the charging cable is securely connected to both the watch and a working power source.
- Check for any debris or corrosion on the charging contacts of the watch and cable. Clean gently if necessary.
- Try a different USB port or power adapter.
Bluetooth Disconnection Issues
- Ensure your watch is within Bluetooth range of your smartphone.
- Verify that Bluetooth is enabled on your smartphone.
- Restart both your smartphone and the TOZO S2 Smart Watch.
- In your phone's Bluetooth settings, forget the TOZO S2 and re-pair it through the TOZO Fit app.
- Ensure the TOZO Fit app is running in the background and has necessary permissions.
Inaccurate Health Data (Heart Rate, Sleep, Steps)
- Ensure the watch is worn snugly on your wrist, about one finger's width above your wrist bone. It should not be too tight or too loose.
- Keep the back of the watch (sensor area) clean and free from sweat or dirt.
- For sleep tracking, ensure you wear the watch consistently throughout the night.
- Environmental factors and individual physiology can affect sensor accuracy.
Alexa Not Responding
- Confirm your watch is successfully paired with the TOZO Fit app and has an active internet connection via your phone.
- Ensure you have logged into your Amazon account within the TOZO Fit app for Alexa functionality.
- Check the microphone on the watch for any obstructions.
Specifications
| Feature | Detail |
|---|---|
| Model Number | S2 |
| Display Size | 1.69 Inches |
| Battery Capacity | 300 mAh |
| Waterproof Rating | 5ATM (up to 50m) |
| Connectivity | Bluetooth |
| Operating System | Android (compatible with iOS & Android) |
| Item Weight | 4.2 ounces |
| Product Dimensions | 1.97 x 2.76 x 3.15 inches |
Warranty & Support
TOZO products are designed with quality and reliability in mind. For warranty information, technical support, or customer service inquiries, please refer to the official TOZO website or contact their customer support directly. You can also visit the TOZO Store on Amazon for additional resources.





