1. Introduction
Welcome to your SAMSUNG Galaxy Watch Active 2 (40mm). This manual provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your smartwatch. Please read this manual carefully to ensure proper use and to maximize the device's features.
2. Important Safety Information
Before using your device, read all safety information to ensure safe and proper use. Keep this manual for future reference.
- Do not disassemble, modify, or repair your device.
- Avoid exposing the device to extreme temperatures, direct sunlight, or high humidity.
- Keep the device away from children and pets.
- Use only SAMSUNG-approved chargers and accessories.
- Consult a medical professional before starting any new exercise regimen or if you have any health concerns.
- The device is water-resistant, but not waterproof. Avoid prolonged submersion or high-pressure water activities.
3. Package Contents
Verify that your product box contains the following items:
- SAMSUNG Galaxy Watch Active 2 (40mm)
- Wireless Charging Dock
- Quick Start Guide
- Warranty Card
The items supplied with the device and their images may vary by region.
4. Device Layout
Familiarize yourself with the main components of your Galaxy Watch Active 2.

Figure 4.1: Front view of the Galaxy Watch Active 2.

Figure 4.2: Side view with physical buttons.

Figure 4.3: Back view with sensors and charging contacts.
Components:
- Display: Touchscreen for interaction and information display.
- Home key (Power key): Press to go to the Home screen or turn the watch on/off.
- Back key: Press to go to the previous screen.
- Microphone: For voice commands and calls.
- Speaker: For audio output and calls.
- Heart Rate Sensor: Measures heart rate.
- Charging Contacts: For connecting to the wireless charging dock.
5. Setup
5.1 Charging the Battery
Before using your watch for the first time, or if it has been unused for an extended period, charge the battery fully.
- Connect the wireless charging dock to a power adapter.
- Place the watch onto the wireless charging dock, aligning the charging contacts.
- The watch will indicate charging status on its screen.
- Once fully charged, disconnect the watch from the charging dock.
Note: Use only SAMSUNG-approved charging devices. Unapproved chargers may cause damage or injury.
5.2 Pairing with a Mobile Device
To use all features of your Galaxy Watch Active 2, you must pair it with a compatible smartphone.
- Turn on your watch by pressing and holding the Home key.
- On your smartphone, download and install the Galaxy Wearable app from the Google Play Store or Samsung Galaxy Store.
- Open the Galaxy Wearable app on your smartphone.
- Follow the on-screen prompts to connect your watch. Ensure Bluetooth is enabled on your smartphone.
- Confirm the passkey displayed on both your watch and smartphone.
- Complete the setup process by agreeing to terms and conditions and signing into your Samsung account.
Tip: For optimal performance, keep your watch and smartphone within close proximity during the pairing process.
6. Operating Your Watch
6.1 Basic Navigation
- Touchscreen: Tap to select, swipe to navigate, pinch to zoom.
- Bezel: Rotate the digital bezel (by swiping your finger around the screen edge) to scroll through menus or lists.
- Home key: Press to return to the watch face. Double-press for a customizable shortcut. Press and hold for power options or Bixby.
- Back key: Press to return to the previous screen.
6.2 Health Monitoring
The Galaxy Watch Active 2 offers advanced health monitoring features.

Figure 6.1: Heart Rate Monitoring.
- Heart Rate: The watch continuously monitors your heart rate. View your current and historical data in the Samsung Health app.
- ECG (Electrocardiogram): (Availability may vary by region and requires specific app setup.) Record an ECG to check for signs of atrial fibrillation.
- Blood Pressure: (Availability may vary by region and requires calibration with a traditional cuff.) Monitor your blood pressure directly from your wrist.
- Stress Tracking: Measures stress levels and offers guided breathing exercises.
- Sleep Tracking: Analyzes sleep stages (REM, Light, Deep) and provides insights into sleep quality.

Figure 6.2: Stress and Sleep Tracking features.
6.3 Fitness Tracking
Track your workouts and daily activity with precision.

Figure 6.3: Automatic Workout Tracking.
- Automatic Workout Detection: The watch can automatically detect and track common workouts like walking, running, cycling, and swimming.
- Manual Workout Tracking: Select from over 39 different workouts to track manually, including strength training, yoga, and more.
- GPS Tracking: Built-in GPS accurately records your outdoor activities without needing your phone.
- Activity Goals: Set daily goals for steps, active time, and calories burned.
6.4 Notifications and Communication
- Notifications: Receive notifications from your smartphone apps directly on your watch.
- Calls: Make and receive calls directly from your watch when connected to your phone via Bluetooth.
- Messages: Read and reply to messages using pre-set responses, dictation, or a small keyboard.
7. Customization
Personalize your Galaxy Watch Active 2 to match your style and needs.

Figure 7.1: Customizable watch faces and bands.
- Watch Faces: Choose from a wide variety of pre-installed watch faces or download new ones from the Galaxy Store via the Galaxy Wearable app. You can also create custom watch faces.
- Watch Bands: The 40mm Galaxy Watch Active 2 uses standard 20mm watch bands, allowing for easy replacement and personalization.
- Widgets: Add or remove widgets to quickly access information like weather, calendar, and activity summaries.
8. Maintenance
Proper care ensures the longevity and performance of your watch.
- Cleaning: Regularly wipe your watch and band with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and mild soap, then rinse and dry thoroughly.
- Water Resistance: The watch is water-resistant up to 50 meters (5 ATM) under ISO standard 22810:2010. It is suitable for shallow-water activities like swimming. Do not use for diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.
- Avoid Chemicals: Do not expose the watch to harsh chemicals, detergents, or solvents, as these can damage the seals and finish.
- Storage: Store the watch in a cool, dry place when not in use.
9. Troubleshooting
If you encounter problems with your watch, try these solutions before contacting support.
| Problem | Solution |
|---|---|
| Watch does not turn on | Charge the battery fully. If it still doesn't turn on, press and hold the Home key for more than 7 seconds to restart. |
| Watch does not charge | Ensure the charging dock is properly connected to power. Check for debris on charging contacts. Try a different power outlet or adapter. |
| Cannot pair with smartphone | Ensure Bluetooth is enabled on both devices. Restart both the watch and smartphone. Make sure the Galaxy Wearable app is updated. |
| Heart rate sensor not working | Ensure the watch is snug on your wrist. Clean the sensor on the back of the watch. Avoid tattoos or excessive hair directly under the sensor. |
| Screen is unresponsive | Restart the watch by pressing and holding the Home key for more than 7 seconds. Ensure the screen is clean and dry. |
10. Specifications
Key technical specifications for the SAMSUNG Galaxy Watch Active 2 (40mm).
- Model Name: Galaxy Watch Active 2 (40mm)
- Model Number: GSS1883
- Display: 40mm Super AMOLED, 360 x 360 pixels
- Operating System: Tizen-based Wearable OS 4.0
- Processor: Dual-core 1.15 GHz
- Memory: 4 GB internal storage
- Connectivity: Bluetooth 5.0, Wi-Fi (802.11 b/g/n), GPS, NFC
- Sensors: Accelerometer, Barometer, Gyro Sensor, HR Sensor, Light Sensor
- Battery: 247 mAh (typical)
- Water Resistance: 5 ATM (ISO 22810:2010)
- Dimensions: Approximately 40 x 40 x 10.9 mm
- Weight: Approximately 26 g (without strap)
Specifications are subject to change without notice.
11. Warranty and Support
For warranty information, please refer to the warranty card included in your product package or visit the official SAMSUNG website. For additional support, FAQs, and software updates, please visit the SAMSUNG support page for your region.
Online Support: www.samsung.com/us/support/
Customer Service: Refer to your regional SAMSUNG website for local contact numbers.





