| Display Panel Technology | 1.1-inch Round AMOLED, 850-nit luminance, 360x360 resolution, Always-On Mode | 1.1-inch AMOLED, 360x360 resolution, curved glass coating, Always-On Display | TFT LCD / Low-brightness LCD (<450 nits), non-AMOLED |
| Chassis & Bezel Construction | Zirconia-finish ceramic back, 60 precision-cut glass crystals, PVD gold/silver plating | Zinc-alloy metallic frame, diamond-cut outer ring, quick-release link strap | Polycarbonate / ABS plastic casing with electroplated coating |
| Optical Sensor Array | Dual-LED PPG heart rate optical sensor, pulse oximetry SpO2 algorithm, accelerometer | Single-LED PPG optical sensor, SpO2 sensor, 3-axis motion tracking sensor | Basic single-channel HR sensor without calibrated female metrics |
| Wireless Connectivity | Bluetooth v5.3 dual-mode transceiver, low-power BLE, integrated acoustic speaker/mic | Bluetooth v5.2, low-power BLE module, wrist-based voice calling speaker | Bluetooth 4.2 / legacy standard without calling support |
| Female Health Suite | Predictive menstrual tracking, ovulation period window forecasting, symptom logging | Cycle logging, automated reminder alerts via NoiseFit companion software | Third-party app dependency or simple manual calendar entry |
| Battery & Power Architecture | High-density 230mAh Li-Po cell, magnetic pogo-pin charger, 4–7 days typical operating time | 200mAh Li-Po battery, power-efficient MCU, 4 days typical standby battery | 2–3 days max under AMOLED active settings |
| Protection Standards | IP67 ingress rating against dust intrusion and water immersion up to 1 meter | IP67 water-resistant rating for daily splash and rain resistance | IP65 basic splash resistance |