| Model | Wonlex MF91Pro Screenless BLE Band |
| Release Date | May 2026 |
| MCU | Nordic 54L15 |
| AFE Processor | TI TI4950 Engine |
| Sampling Frequencies | ECG: 500Hz | PPG: 50Hz |
| Optical Sensor | Quad-Sensor Array (RA3220 ×4) |
| Motion Sensor | 6-Axis Accelerometer (BMI270) |
| Wireless Protocol | BLE 6.0 |
| Display | Screenless (Privacy & Battery Optimized) |
| Haptic Feedback | Precision Vibration Motor |
| Waterproof/Dustproof Rating | IP68 Certified |
| Battery | 265mAh Lithium-Polymer Battery |
| Battery Life | Active: Up to 10 Days | Standby: 30+ Days |
| Charging | Magnetic Pin Charging Dock |
| Companion App | Gband Companion App |
| OS Compatibility | Android 8.0+ | iOS 13.0+ |
| Materials | Back: Tempered Glass (Mirror Finish); Strap: Detachable Quick-Release Fabric |
| Colors | Khaki, Blue, Dark Green, Green, Obsidian Black |
| Size & Weight | 39×29×10mm | 25g (TBC) |
| Developer SDK | Available at: https://github.com/HBandSDK |