ECG Blood Glucose Smartwatch with 2.2" Curved Display | QS21
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Aerospace Aluminum Design with 2.2" Curved Full Screen
The QS21 features an ultra-thin 2.2-inch curved full-screen display built with a premium aerospace aluminum body.
Its seamless design offers clear visibility, lightweight comfort, and a modern high-end look.
Dual-Engine ECG + PPG Hybrid Detection
QS21 is equipped with ECG + PPG hybrid sensing, using sixth-generation technology to capture multi-dimensional cardiac electrical signals with hospital-grade clarity.
Waveform accuracy is improved by 200%, supporting advanced heart screening.
Millisecond-Level ECG Waveform Recording
Perform a 30-second ECG test anytime.
The watch generates dual-channel ECG waveforms and provides cardiac analysis directly through the app—ideal for monitoring arrhythmia trends and overall heart condition.
Real-Time Cardiac Screening System
The watch analyzes ECG morphology, waveform abnormalities, and potential early cardiac risks, helping users gain deeper insight into their heart health status.
Automatic Temperature Monitoring
Built-in precision sensors continuously track skin temperature and body temperature, providing real-time alerts for abnormal fluctuations.
24/7 Intelligent Heart Rate Monitoring
The upgraded heart-rate engine enables continuous heart rate monitoring, dynamic analysis, and abnormal heart-rate alerts, ensuring safer everyday activity and exercise.
Blood Pressure Monitoring with Trend Reports
With enhanced FITBLOOD 4.0 technology, QS21 tracks systolic and diastolic blood pressure, generating 7-day, 30-day, and 90-day trend charts for long-term health evaluation.
Blood Oxygen Monitoring + Sleep Apnea Alerts
The watch offers SpO₂ monitoring, detecting nighttime oxygen drops and potential sleep apnea risks with real-time respiratory analysis.
100+ Sports Modes with Full Training Metrics
Choose from 100+ sports modes, including walking, running, cycling, rowing, and indoor training.
The watch records calories, pace, distance, heart rate zones, and exercise duration.
Continuous Blood Oxygen Training Engine
A six-core optical module ensures accurate all-day blood oxygen monitoring, essential for breathing health, especially during sleep.
Blood Lipid & Uric Acid Trend Evaluation
AI-powered metabolic analysis helps evaluate trends in uric acid, cholesterol, triglycerides, and other wellness indicators, supporting better long-term management.
Professional Sleep Monitoring with HRV
QS21 analyzes deep sleep, light sleep, REM cycles, overnight heart rate, breathing patterns, and HRV, generating a full sleep quality assessment.
Non-Invasive Blood Glucose Trend Monitoring
Using advanced optical rheology, QS21 records blood glucose fluctuations without finger pricks.
Daily curves show glucose stability, lifestyle influence, and long-term patterns.
Smart Daily Tools Integrated
The watch includes practical features such as weather forecast, alarm, camera control, hydration reminders, stopwatch, and sedentary alerts.
Micro Physical Examination Feature
A one-tap test evaluates blood pressure, heart rate, oxygen, temperature, stress, fatigue, and HRV, creating a quick wellness summary.
SOS Emergency Call
Long-press SOS to instantly call preset emergency contacts, providing added safety for seniors, outdoor users, and high-risk situations.
Offline Alipay Payment Support
Supports offline QR-code payment, allowing users to complete purchases without carrying a smartphone.
IP67 Waterproof Protection
The QS21 is IP67 water-resistant, safe for daily handwashing, rain exposure, and sweat.
Smart Notifications + Bluetooth Calling
Receive calls, messages, and app notifications (WhatsApp, Facebook, Gmail, SMS) directly on your wrist, with stable Bluetooth calling support.
🎰👩💼We process orders between Monday and Friday👨💼🎰
Free Shipping For Orders Over $59.
Orders will be processed within 2 business days of ordering and shipped the next day after the processing day. Please note that we don't ship on weekends.
🚀To USA
- Standard Shipping (3-10 business days) - $5.99 (Free over $59)
- Fast Shipping (1-7 business days) - $12.00(Free over $120)
- Fast Shipping (1-7 business days) - $6.00(Over $59)
🚀To Rest of World:
- Standard Shipping (10-25 business days) - $5.99 (Free over $59)
🔥Please note that these are estimated delivery times only, therefore Katml is not guaranteeing delivery dates.
🔥NOTE
Please ensure all delivery information is correct. If there is incorrect and/or missing information, we may be required to contact you to update the delivery information, which may cause delays in delivering your order. Delays may also occur as a result of customs clearance.
Your local customs office may require additional documents and time to clear your package, which may delay the estimated delivery time.
Your order may be delivered to you by either the local post office or a local courier. Depending on your area, most orders will be delivered by your local post service, so the package will be received with your regular mail. If you are not home when the delivery is made, a notice card may be left by the postal service to advise on how and where your delivery can be collected.