Introduction
Thank you for choosing the SUNKTA Military Smart Watch. This rugged and feature-rich smartwatch is designed to be a reliable companion for adventurers and explorers, offering comprehensive health monitoring, efficient communication, and a personalized experience. This manual provides detailed instructions to help you set up, operate, and maintain your new device, ensuring optimal performance and longevity.

The SUNKTA Military Smart Watch, showcasing its robust design and water resistance.
What's in the Box
Upon unboxing your SUNKTA Military Smart Watch, please ensure all the following components are present:
- Smart Watch (1 unit)
- Stainless Steel Band (1 unit)
- Sports Silicone Band (1 unit)
- Magnetic Charger (1 unit)
- Smartwatch Regulator (1 unit)
- User Manual (1 unit)
Setup Guide
1. App Download and Installation
To fully utilize your smartwatch's features, you need to download the companion application, FitCloudPro.
- Search for "FitCloudPro" on your device's app store (APP Store for iOS or Google Play Store for Android).
- Alternatively, scan the QR code below using your phone's camera or a QR code scanner app to directly download the application.

Visual guide for connecting the smartwatch to the FitCloudPro app.
For direct download, visit: fitcloud.hetangsmart.com/qrcode/_cn/
2. Bluetooth Connection
Follow these steps to connect your smartwatch to your smartphone via Bluetooth:
- Ensure Bluetooth is turned on on your smartphone.
- Open the "FitCloudPro" app on your phone.
- Navigate to the "Devices" screen within the app.
- Tap the "+ Add Peripheral Now" button.
- Select "ST19" from the list of available devices to pair.
- Confirm the pairing request on both your phone and the smartwatch.
- After successful connection, you can enable the "Connected to Call audio" option within the app to use the watch for calls.
Video demonstrating the Bluetooth connection process for the smartwatch.
Operating Instructions
Premium AMOLED Screen
Your smartwatch features a vibrant 1.43-inch AMOLED screen with an ultra-high resolution of 466*466. This display offers a wider color gamut, superior contrast, and faster response times compared to traditional LCD screens, ensuring clear visibility even in bright sunlight. The "Always-on-Display" function allows you to view the time without needing to raise your wrist or touch the screen.

Detailed view of the smartwatch's 1.43-inch AMOLED touchscreen and its features.
Bluetooth Calling & Message Notification
Equipped with Bluetooth 5.0, the smartwatch provides a stable connection for communication. It features a 60dB speaker and a noise-cancelling microphone, allowing you to make, answer, and hang up calls directly from your wrist. You can also add contacts and view call history. The watch vibrates and rings to notify you of incoming calls and messages from various apps like SMS, Facebook, WhatsApp, Instagram, Twitter, Tiktok, and Skype, ensuring you never miss important communications.
Official product video showcasing the Bluetooth calling and notification features of the SUNKTA Military Smart Watch.

Illustration of the smartwatch's Bluetooth call and message notification capabilities.
Health Monitoring
The smartwatch acts as your personal health assistant, continuously monitoring key health metrics:
- 24/7 Heart Rate Monitoring: Equipped with the HRS3605 heart rate chip, it tracks your heart rate every 5-30 minutes.
- SpO2 Monitor: Measures your blood oxygen levels. For accurate results, measure while resting.
- Sleep Tracker: Automatically records your sleep time and quality (deep sleep, light sleep, wakefulness) to help improve sleep management.
- Breathing Exercise: Guides you through breathing exercises to reduce stress.
- Sedentary Reminder & Drinking Water Reminder: Prompts you to stay active and hydrated throughout the day.

Visual representation of the smartwatch's 24-hour health tracking capabilities.
Sport Modes & Activity Tracking
Designed for both indoor and outdoor activities, the smartwatch supports 126 sport modes. It comprehensively records your sports data, including calories burned, steps taken, and distance covered, helping you to plan and enhance your fitness routine effectively.

The smartwatch's extensive range of sport modes and activity tracking features.
Watch Faces
Personalize your smartwatch with over 300 watch faces available through the FitCloudPro app. You can choose from a wide variety of styles or even create your own custom watch face by uploading your favorite photos.

A selection of watch faces and the DIY customization feature.
Other Functions
The SUNKTA Military Smart Watch offers a variety of additional convenient features:
- AI Voice Assistant: For hands-free control and queries.
- Weather Forecast: Provides real-time weather updates.
- Stopwatch & Alarm Clock: Essential timekeeping tools.
- Music Player Control: Control music playback on your phone.
- Remote Camera Control: Use your watch as a remote shutter for your phone's camera.
- Find Your Phone: Helps locate your misplaced smartphone.
- Calculator: A convenient tool for quick calculations.

Overview of additional smart functions available on the watch.
Maintenance
Waterproof Rating
The SUNKTA Military Smart Watch boasts a 5ATM waterproof rating, meaning it can withstand pressures equivalent to a depth of 50 meters. This makes it suitable for daily use, handwashing, rain, and even swimming in pools or open water. However, it is not recommended for hot showers, saunas, or diving, as steam and high temperatures can compromise the seals.

The smartwatch's 5ATM waterproof rating, suitable for swimming and daily water exposure.
Ruggedness & Durability
This smartwatch is built to military-grade standards, having passed 12 durability tests including resistance to cold, heat, shock, mechanical impact, ice, and freezing rain. Its metal casing and Mohs 9H toughened glass screen ensure it can withstand bumps, drops, and scratches, making it highly reliable in extreme environments.
Video highlighting the scratch-resistant screen and military-grade quality of the smartwatch.

The smartwatch's military-grade quality, engineered to endure harsh environments.
Troubleshooting
Q: How do I turn off the Media Audio?
A: When the smartwatch and phone are connected via Bluetooth, the smartwatch may sync the phone's audio. If you wish to keep it quiet and prevent the watch from playing media audio, you can tap the phone icon on the watch screen to turn off the "media audio" function.
Q: What if the strap dimensions don't fit my wrist?
A: The product comes with a strap regulator tool, which can be used to adjust the stainless steel band according to your wrist size. If you require a longer strap or additional sections, please contact customer support for assistance.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 8.66 x 1.73 x 0.51 inches |
| Item Weight | 3.53 ounces (100 Grams) |
| Item Model Number | ST19-J |
| Batteries | 1 Lithium Polymer battery required (included) |
| Battery Capacity | 400 Milliamp Hours |
| Standing Screen Display Size | 1.43 Inches |
| RAM Memory Installed Size | 128 MB |
| Connectivity Technology | Bluetooth |
| Wireless Communication Standard | Bluetooth |
| Waterproof Rating | 5ATM |
| GPS | No GPS |
| Shape | Round |
| Compatible Devices | Android 4.4+ and iOS 8.0+ smartphones |
Warranty and Support
Your SUNKTA Military Smart Watch comes with a 24-month warranty from the date of purchase. We are committed to providing excellent products and services. If you have any questions, concerns, or require assistance with your device, please do not hesitate to contact our customer support team. We aim to provide a satisfactory reply within 24 hours.
For support, please refer to the contact information provided in your purchase documentation or visit the official SUNKTA website.




