The ring uses photoplethysmography (PPG) to estimate blood pressure. Accuracy is slightly lower than traditional cuff-based monitors, with an expected error of about ±10 mmHg. Like other optical solutions (e.g., Samsung Galaxy Watch 3, Aktiia Hilo), it requires periodic calibration with a cuff monitor for best results. Our team obtained a Class II medical device certification in China in July 2023 for blood pressure monitoring.
We use infrared PPG signals that capture subtle blood flow changes. Combined with heart rate variability, pulse wave features, and temperature trends, these signals are processed through AI models to estimate stress, mood, and emotional states.
The system analyzes multi-modal signals, including:
Skin temperature changes (often rise during arousal),
PPG waveform patterns,
Stress-related heart rate variability trends.
These insights are modeled to provide indicators of intimacy readiness or relationship stress levels.
The ring combines:
Basal body temperature (BBT): typically rises 0.3–0.5°C post-ovulation,
Resting heart rate (RHR): tends to peak during ovulation.
By tracking these signals continuously, the AI estimates menstrual cycles and fertile windows.
Your data is securely stored and processed in compliance with regional regulations. You can view the Privacy Policy in the app under Profile → Settings → Privacy.
The Privacy Link is: http://media.aicaring.com/apk/4.0/abroad/files/pro_service_en.html
The AI model is trained using lab-based datasets. On your device, only feature extraction and simple calculations occur (like a calculator). Your raw data is not used for training and is never shared without your consent.
Yes. Currently, the vibrating alarm is managed through the app, allowing you to set reminders or alerts.
DBlood pressure, emotion, and stress data: up to 24 hours offline (requires internet to sync).
Heart rate, steps, SpO₂, and sleep data: up to 10–14 days offline, which can sync to the app without internet.
Yes, shipping includes VAT. We will handle the VAT expenses, so you don’t need to worry about additional tax payments upon delivery.
We offer a 1-year warranty period from the date of purchase. If the ring has any quality issues or malfunctions caused by manufacturing defects during this period, we will provide a free replacement with a new one.
If you ordered the wrong ring size due to a measurement error, we do offer an exchange service. Please contact our customer service within 14 days of receiving the ring, ensuring the product is in its original condition (unworn, with all original packaging and accessories intact). You will be responsible for the round-trip shipping fees for the exchange, and we will send you the correct size once we receive the returned ring. Our customer service team can also help recheck your size with our guide to avoid repeated issues!