1. Introduction
Welcome to the user manual for your new boAt Ultima Chronos Smartwatch. This guide provides essential information to help you set up, operate, maintain, and troubleshoot your device. The Ultima Chronos is designed to enhance your daily life with its advanced features, including a vibrant 1.96-inch AMOLED display, seamless Bluetooth calling, comprehensive health monitoring, and extensive customization options.

Image: The boAt Ultima Chronos Smartwatch, showcasing its sleek design and vibrant display.
2. Setup
2.1 What's in the Box
Ensure all components are present in the packaging:
- Ultima Chronos Smartwatch
- Charging Cable
- Warranty Card
- User Manual
2.2 Initial Charging
Before first use, fully charge your smartwatch. Connect the charging USB cable to an adapter with an output of 3.7V to 5V. The typical charging time is 1-2 hours. A full charge provides up to 7 days of battery life under normal usage and up to 30 days on standby.
2.3 Pairing with Your Device
To unlock the full potential of your Ultima Chronos, pair it with your smartphone via the boAt Crest App.
- Download the boAt Crest App from your device's app store (available for Android and iOS).
- Ensure Bluetooth is enabled on your smartphone.
- Open the boAt Crest App and follow the on-screen instructions to search for and connect to your Ultima Chronos.
- Confirm the pairing request on both your smartwatch and smartphone.

Image: Screenshot of the boAt Crest App interface, demonstrating its health ecosystem features.
3. Operating Instructions
3.1 Display and Navigation
The Ultima Chronos features a 1.96-inch AMOLED display with 410x502 resolution and up to 650 Nits brightness, ensuring clear visibility. It supports Always-On Display and Wake Gesture for convenient access to information.

Image: Close-up of the boAt Ultima Chronos display, highlighting its 1.96-inch AMOLED screen with high resolution and brightness.
3.2 Bluetooth Calling
Make and receive calls directly from your wrist with the advanced Bluetooth calling feature. The watch includes a premium speaker and microphone, an interactive dialpad, and the ability to save up to 20 contacts for quick access.

Image: The smartwatch displaying an incoming call, illustrating the Bluetooth calling functionality.
3.3 Health and Wellness Monitoring
Monitor your health with integrated sensors for Heart Rate (HR) and SpO2. The watch also tracks female wellness, energy scores, and sleep scores. Engage in over 700 active modes to track various fitness and sports routines.
Note: HR and SpO2 readings are for general fitness and wellness purposes only and are not intended for medical usage or diagnosis.

Image: Visual representation of the smartwatch displaying health metrics such as heart rate and SpO2 levels.
3.4 Customization
Personalize your smartwatch with the DIY Watch Face Studio, allowing you to choose backgrounds, themes, and widgets. Access over 100 cloud-based watch faces through the boAt Crest App.

Image: The smartwatch display showing various customizable watch faces and the DIY Watch Face Studio interface on a smartphone.
3.5 Smart Features
The Ultima Chronos offers a range of smart features for convenience:
- Notifications: Receive alerts for messages, calls, and app notifications.
- DND Mode & Quick Replies: Manage interruptions and send quick responses directly from your wrist.
- Live Sports Score: Stay updated with real-time scores for cricket and football matches.
- Voice Assistant: Access your phone's voice assistant for hands-free control.
- Custom Reminders: Set reminders for medicine, handwash, and water intake.
- boAt Coins: Earn vouchers/coupons redeemable on the boAt Crest App based on your workouts.

Image: A composite image showcasing the smartwatch displaying notifications, live sports scores, and a user interacting with the voice assistant.
4. Maintenance
4.1 Cleaning
To maintain the appearance and functionality of your smartwatch, regularly clean it with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials. If necessary, lightly dampen the cloth with water and wipe gently, then dry thoroughly.
4.2 Battery Life Optimization
To maximize battery life, consider the following:
- Adjust screen brightness to a lower setting.
- Limit the use of Always-On Display if not essential.
- Disable unnecessary notifications.
- Ensure the watch is fully charged before extended periods of use.
5. Troubleshooting
5.1 Watch Not Turning On or Charging
- Ensure the charging cable is securely connected to both the watch and a working power source (3.7V to 5V adapter).
- Check if the charging pins on the watch and cable are clean and free of debris.
- Try a different USB port or power adapter.
5.2 Connectivity Issues (Bluetooth)
- Ensure Bluetooth is enabled on your smartphone and the watch is within range.
- Restart both your smartwatch and smartphone.
- Forget the device in your phone's Bluetooth settings and re-pair through the boAt Crest App.
- Update the boAt Crest App to the latest version.
5.3 Inaccurate Health Readings
- 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. Remember, these readings are not for medical use.
6. Specifications
Key technical specifications for the boAt Ultima Chronos Smartwatch:
| Feature | Specification |
|---|---|
| Brand | boAt |
| Model Number | KM13 |
| Screen Size | 1.96 Inches (AMOLED Display) |
| Battery Life (Typical Use) | Up to 7 Days |
| Battery Life (Standby) | Up to 30 Days |
| Battery Capacity | 260 Milliamp Hours (mAh) |
| Connectivity Type | Bluetooth |
| Operating System Compatibility | Android & iOS |
| Item Weight | 45 g |
| Product Dimensions (LxWxH) | 4.6 x 10.2 x 11.9 cm |
| Included Components | Ultima Chronos, Charging Cable, Warranty Card, User Manual |
7. Warranty and Support
7.1 Warranty Information
The boAt Ultima Chronos Smartwatch comes with a 1-year manufacturer's warranty from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your purchase receipt for warranty claims.
7.2 Contact Support
For technical assistance, warranty claims, or any other inquiries, please contact boAt customer support through their official website or the contact information provided on your warranty card.





