Fastrack Limitless X2

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Fastrack Limitless X2 Smartwatch User Manual

Model: Limitless X2 (38137PP04)

1. Product Overview

The Fastrack Limitless X2 Smartwatch is designed to enhance your daily life with advanced features and a user-friendly interface. It combines a vibrant display, comprehensive health tracking, and convenient communication capabilities.

Fastrack Limitless X2 Smartwatch in Wine Red

Image 1.1: Fastrack Limitless X2 Smartwatch, showcasing its design and display.

Key Features:

  • Display: 1.91" UltraVU HD Display with 60 Hz Refresh Rate and Functional Rotating Crown.
  • Connectivity: SingleSync Bluetooth Calling (BT v5.3) with Favorite Contacts storage and Quick Replies (Android).
  • Charging: NitroFast Charging for quick power-ups, offering up to 5 days of battery life.
  • Health Monitoring: 24x7 Heart Rate Monitor (HRM), SpO2 (Blood Oxygen), Continuous Stress Monitor, Sleep Tracking with REM, and Women's Health Tracker.
  • Activity Tracking: Over 100 Sports Modes and Activity Tracker.
  • Durability: IP68 Water and Dust Resistance.
  • Smart Features: AI Voice Assistant, 100+ Cloud Watchfaces, Multiple Menu Styles, In-built games, Music and Camera Control.

2. Setup Guide

2.1 Initial Charging

Before first use, fully charge your Fastrack Limitless X2 Smartwatch. Use the provided magnetic charging cable. Connect the magnetic end to the charging pins on the back of the watch and the USB end to a compatible power adapter (not included).

  • NitroFast Charging: Approximately 10 minutes of charging provides up to 1 day of battery life. A full charge can last up to 5 days, depending on usage.
Fastrack Limitless X2 Smartwatch with NitroFast Charging illustration

Image 2.1: Illustration of the NitroFast Charging feature, showing the magnetic charger connected to the smartwatch.

2.2 Pairing with Your Smartphone

  1. Download the official Fastrack Reflex World app from your smartphone's app store (Google Play Store for Android, Apple App Store for iOS).
  2. Ensure Bluetooth is enabled on your smartphone.
  3. Open the Fastrack Reflex World app and follow the on-screen instructions to create an account or log in.
  4. Select 'Add Device' or 'Pair New Device' within the app.
  5. The app will search for your Fastrack Limitless X2. Select your watch from the list of available devices.
  6. Confirm the pairing request on both your smartphone and the smartwatch.

Once paired, the watch will synchronize data with your phone, and you can customize settings through the app.

3. Operating Instructions

3.1 Display and Navigation

The Fastrack Limitless X2 features a 1.91" UltraVU HD touchscreen display for intuitive interaction. It also includes a functional rotating crown for navigation.

Fastrack Limitless X2 Smartwatch display with functional crown

Image 3.1: The 1.91" Superior Display of the Fastrack Limitless X2, highlighting the functional crown and 60 Hz refresh rate.

  • Touchscreen: Swipe left, right, up, or down to access different menus, notifications, and quick settings. Tap to select items.
  • Functional Crown: Rotate the crown to scroll through lists or adjust settings. Press the crown to return to the home screen or confirm selections.

3.2 Bluetooth Calling (SingleSync)

With SingleSync Bluetooth Calling, you can make and receive calls directly from your smartwatch.

Fastrack Limitless X2 Smartwatch showing an incoming call

Image 3.2: The SingleSync BT Calling feature in action, displaying an incoming call on the smartwatch screen.

  • Making Calls: Access the dialer or contact list on your watch to initiate a call.
  • Receiving Calls: Answer or reject incoming calls directly from the watch screen.
  • Favorite Contacts: Store frequently called contacts for quick access.
  • Quick Replies (Android): Send pre-set quick replies to incoming messages or calls (Android only).

3.3 Health Monitoring

The Limitless X2 provides comprehensive health tracking features.

Fastrack Limitless X2 Smartwatch displaying health metrics

Image 3.3: Advanced Health Monitoring features, including 24x7 Heart Rate Monitor, Continuous Stress Monitor, SpO2, Sleep Tracking, and Women's Health Tracker.

  • Heart Rate Monitor (HRM): Continuously monitors your heart rate throughout the day.
  • SpO2: Measures your blood oxygen saturation levels.
  • Stress Monitor: Tracks your stress levels and provides insights.
  • Sleep Tracking: Monitors your sleep patterns, including REM sleep, to help you understand your sleep quality.
  • Women's Health: Provides tracking and insights for women's health cycles.

For accurate readings, ensure the watch is worn snugly on your wrist.

3.4 Sports Modes and Activity Tracking

The watch supports over 100 sports modes to track various physical activities.

Fastrack Limitless X2 Smartwatch showing various sports icons

Image 3.4: Visual representation of the 100+ Sports Modes available on the Fastrack Limitless X2 Smartwatch.

  • Select your desired sport from the watch menu to start tracking metrics like steps, distance, calories burned, and heart rate during your workout.

3.5 Other Smart Features

Fastrack Limitless X2 Smartwatch showing AI voice assistant, games, and IP68 rating

Image 3.5: A collage showcasing additional features like Multiple Menu Styles, AI Voice Assistant, In-built games, IP68 Water and Dust Resistance, and the Functional Crown.

  • AI Voice Assistant: Use voice commands for various functions.
  • Watch Faces: Choose from over 100 cloud-based watch faces to personalize your device.
  • Notifications: Receive alerts for calls, messages, and app notifications from your paired smartphone.
  • Music and Camera Control: Control music playback and your smartphone camera remotely from the watch.
  • In-built Games: Enjoy casual games directly on your smartwatch.

4. Maintenance

4.1 Cleaning Your Smartwatch

Regular cleaning helps maintain the watch's performance and appearance.

  • Wipe the screen and strap with a soft, damp, lint-free cloth.
  • Avoid using harsh chemicals or abrasive materials.
  • Ensure the charging pins are clean and dry before charging.

4.2 Water and Dust Resistance (IP68)

The Fastrack Limitless X2 is IP68 rated, meaning it is resistant to dust and can withstand immersion in water up to 1.5 meters for 30 minutes.

  • It is suitable for daily use, including hand washing and light rain.
  • Avoid using the watch in hot water, saunas, or steam rooms.
  • Do not press buttons or operate the crown underwater.
  • Dry the watch thoroughly after exposure to water.

5. Troubleshooting

5.1 Connectivity Issues

  • Watch not connecting to phone: Ensure Bluetooth is on for both devices. Restart both the watch and the phone. Check if the Fastrack Reflex World app is running in the background.
  • Call quality issues: Ensure the watch is within Bluetooth range of your phone. Check for obstructions between the devices.

5.2 Sensor Accuracy

  • Inaccurate readings (HRM, SpO2, Steps): Ensure the watch is worn snugly on your wrist, not too tight or too loose. Avoid excessive movement during measurements.
  • Sleep tracking not recording: Ensure the watch is worn during sleep. Some users report that automatic functions like sleep tracking may stop abruptly; restarting the watch daily might improve consistency.

5.3 Battery Life

  • Shorter than expected battery life: Frequent use of Bluetooth calling, continuous health monitoring, high screen brightness, and numerous notifications can reduce battery life. Adjust settings in the app to optimize.

5.4 App Syncing

  • Data not syncing to app: Ensure the app is open and running in the background. Manually refresh the app to initiate data synchronization.

6. Specifications

FeatureDetail
BrandFastrack
Model NameLimitless X2
Item Model Number38137PP04
Display Size1.91 Inches
Display TypeLCD
Refresh Rate60 Hz
Operating SystemAndroid (Compatible)
Wireless TypeBluetooth
Battery TypeLithium Polymer
Battery Average LifeUp to 5 Days
Water ResistanceIP68
Item Weight48 g
Package Dimensions9.4 x 8.3 x 8.3 cm
Mounting HardwareWatch, Magnetic Charging Cable, Quick Start Guide, Warranty Card
Country of OriginChina

7. Warranty and Support

7.1 Manufacturer's Warranty

The Fastrack Limitless X2 Smartwatch comes with a 1 Year Manufacturer Warranty from the date of purchase. This warranty covers manufacturing defects under normal use conditions.

Please retain your purchase receipt for warranty claims.

7.2 Customer Support

For any queries, technical assistance, or warranty claims, please contact Fastrack customer care:

Importer and Packer details: Titan Company Limited 3 Sipcot Industries complex, Hosur- 635126.

© 2025 Fastrack. All rights reserved.

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