MF91 Smart Health & Fitness Band – Screenless Professional Health Monitoring

The Marsfit MF91 Health Band (often manufactured under brands like Wonlex) is a specialized, screenless Whoop-style fitness and recovery tracker designed for 24/7 continuous health tracking with a focus on data analysis over an on-wrist display

⚙️ Core Hardware & Performance

• Processor / Chipset: JL 7013A + PD2325 + GH3228T
• Display Type: Screen-free / No Display (Managed entirely via companion app)
• Navigation & Control: App Control / Bluetooth-synchronized
• G-Sensor: DA267
• Connectivity: Bluetooth 5.3 BLE & NFC unlock function
• OS Compatibility: Android 8.0 and above, iOS 13.0 and above
• Companion App: G Band
  

🩺 Advanced Health & Medical Monitoring

• ECG Functionality: Upgraded medical-grade electrocardiogram (ECG) sensor with AI health analysis.
• Blood Oxygen (SpO2): Dedicated infrared + red light hardware for true blood oxygen tracking.
• Advanced Biomarkers: Real-time checking/estimation for Blood Pressure, Uric Acid, and Blood Lipids.
• Body Composition: Body-fat estimation and Heart Rate Variability (HRV) analysis.
• Temperature Tracker: Built-in body temperature tracking.
• Safety Features: SOS Remote Emergency Assistance triggers for elderly or vulnerable users.

🔋 Battery & Build

• Form Factor: Ultra-slim 7mm thickness.
• Body Material: High-gloss and polished all-metal alloy body with wire-drawing multi-layer craft.
• Strap Options: Inter-changeable silica gel or nylon woven straps.
• Waterproof Rating: Verified IP68 dust and water resistance (Includes third-party waterproof test report).
• Battery Capacity: 125mAh Lithium-polymer battery.
• Battery Life: Up to 4 days of continuous tracking per charge.
• Charging Port: Magnetic charging connector with built-in charging protection.

🏃 Fitness Tracking

• Activity Metrics: Calorie tracker, step counting, distance traveled, and breath monitoring.
• Sports Profiles: Supports multiple custom indoor and outdoor sports modes managed through the G Band application.