The Zeblaze Stratos 3 Ultra is a feature-rich GPS smartwatch designed for outdoor enthusiasts, fitness trackers, and everyday users seeking robust functionality. It combines advanced navigation tools (compass, barometric altimeter) with dual-band GNSS support and call handling capabilities, all in a durable, wearable form factor.

Key Features

1. Dual-Band GNSS Support:
   • Enhanced Accuracy: Utilizes L1 + L5 frequency bands for faster satellite lock-on and improved positioning precision, even in challenging environments (e.g., dense forests, urban canyons).
   • Global Compatibility: Compatible with GPS, GLONASS, Galileo, and BeiDou systems.
2. Built-In Compass & Barometric Altimeter:
   • Compass: Digital compass for navigation and direction tracking.
   • Barometric Altimeter: Measures altitude changes and atmospheric pressure, aiding in weather forecasting and elevation tracking during hikes.
3. Call Handling:
   • Bluetooth Calling: Answer/make calls directly from the watch via a paired smartphone (Android/iOS).
   • Built-In Microphone & Speaker: Clear audio for hands-free communication.
4. Health & Fitness Tracking:
   • Heart Rate Monitor: 24/7 continuous tracking with optical sensors.
   • Multiple Sports Modes: Supports running, cycling, swimming, hiking, and more (over 100 modes).
   • Sleep & Stress Monitoring: Analyzes sleep quality and stress levels.
5. Durability & Design:
   • IP68 Waterproof: Resistant to dust, sweat, and water (up to 1.5m for 30 minutes).
   • 1.3-Inch AMOLED Display: High-resolution (360x360 pixels), vibrant colors, and sunlight readability.
   • Long Battery Life: Up to 15 days in normal mode; 40 hours with GPS active.
6. Smart Features:
   • Music Control: Play/pause, skip tracks, and adjust volume.
   • Weather Updates: Real-time weather data via smartphone sync.
   • Notifications: Alerts for calls, texts, apps, and calendar events.