The Future of Precise Wrist Blood Pressure Measurement
At the beginning of 2025, Kardena® will once again set new standards in digital healthcare with the CARE Air 3. The popular Air Series is evolving with state-of-the-art sensor technology to enable even more accurate blood pressure measurement directly at the wrist. The official launch date is 01.02.2025.
What Makes the Air Product Line So Special?
The CARE Air series stands out for its innovative micro airbag technology. The air cushion integrated under the wristband inflates precisely, enabling pressure-based blood pressure measurement modeled after traditional upper-arm blood pressure monitors.
As a result, the CARE Air 3 offers significantly higher measurement accuracy compared to conventional fitness trackers or smartwatches with optical sensors. This innovative technology ensures reliable blood pressure monitoring and allows for more precise health surveillance—ideal for anyone concerned about their cardiovascular health.

WHAT MAKES THE CARE AIR 3 UNIQUE?
This health watch with German technology features many technical and functional improvements:
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New health sensors:
- 8-channel heart rate sensor
- 16-channel blood oxygen sensor
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Bluetooth telephony with SOS function: Stay reachable at all times and quickly activate help in emergencies.
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AMOLED display: A crystal-clear 2.06-inch HD display ensures optimal legibility and elegance.
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Rotatable crown: Provides intuitive and comfortable control of all features.
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Micro airbag technology: For precise on-the-go blood pressure measurement, based on clinical blood pressure device technology.
HIGHLIGHTS OF THE CARE AIR 3
The CARE Air 3 is more than just a smartwatch—it's a masterpiece of German engineering, specially developed to monitor and protect your health comprehensively. Discover the highlights that make this watch so unique:
Precision "Made in Germany":
The CARE Air 3 uses ultra-precise sensors developed in Germany. These provide exceptional accuracy in capturing your health data—for the highest level of reliability and trust.
Online Care Function for Complete Security
With the online care feature, you can monitor your health yourself—and allow up to three selected contacts, such as family, caregivers, or doctors, to monitor your vital values in real time. Whether it's blood pressure, heart rate, or unusual values such as sudden drops or increases—the real-time notifications help enable faster responses, providing valuable peace of mind wherever you are.
Micro Airbag for Accurate On-the-Go Blood Pressure Measurements
The included micro airbag is a true highlight. Inspired by clinical blood pressure monitors, it enables precise and reliable blood pressure measurements.

Advanced Sleep Monitoring with CARE Air 3 – Now Including REM Sleep Phase Analysis
The CARE Air 3 takes your sleep monitoring to a new level! In addition to the precise analysis of light and deep sleep stages, the CARE Air 3 now offers REM sleep phase monitoring. This phase, during which most dreams occur and the brain is especially active, plays a crucial role in memory formation and emotional processing.
Why Is Monitoring Your REM Sleep Phase Important?
Improved Mental Health: The REM phase is essential for processing emotions and stress. By analyzing your REM data, you can take targeted measures to improve your mental balance and manage stress more effectively.
Optimized Cognitive Performance: Healthy REM sleep supports learning, memory formation, and creativity. With the CARE Air 3 data, you can see how well your brain recovers overnight and adjust your sleep routine accordingly.
Precision “Made in Germany” – Rely on German Engineering
Why Is the OSRAM Technology in the CARE Air 3 a True Game Changer?
Behind the CARE Air 3 is highly refined German sensor technology—developed by the renowned traditional company OSRAM based in Regensburg. The ultra-precise SFH2703 sensor, a further development of a proven predecessor, enables even more accurate analysis of your health values and sets new standards in digital health monitoring.
While conventional smartwatches often use only one light wavelength and estimate many values, the CARE Air 3 goes much further with three ultra-precise wavelengths (680 nm, 750 nm, and 910 nm infrared). This non-invasive technology allows for detailed blood flow measurement down to the upper 4 mm of your skin—a decisive advantage for reliable health monitoring.
The OSRAM sensor technology brings the accuracy of blood oxygen measurement to an entirely new level. Your respiration rate is automatically measured, and continuous measurements can be viewed directly on the watch as a trend chart—perfect for recognizing long-term trends and taking proactive steps toward your health.
Why Settle for Less?
With the CARE Air 3, you get top-level precision—supported by German engineering that stands out from the crowd.

State-of-the-Art Technology – Precise Heart Health Monitoring with the CARE Air 3
The CARE Air 3 sets new standards in health monitoring with its cutting-edge technology. At the core of this innovation is the GH3220T sensor by global semiconductor leader Goodix, known for its high-precision and energy-efficient sensing technologies.
Why Is This Sensor So Revolutionary?
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Highly-Accurate Wrist Monitoring:
The GH3220T combines heart rate and SpO₂ measurement to provide detailed insights into your heart health. Thanks to its 24-bit ADC (analog-to-digital converter) with extremely high signal accuracy, the CARE Air 3 detects even the smallest deviations in your heart rhythm.
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Detection of Heart Rate Variability (HRV) and Pulse Transit Time (PWTT):
These advanced metrics help you analyze stress load, circulatory function, and vascular health—essential factors for comprehensive health management.
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Ultra-Precise Temperature Monitoring:
The sensor features two highly sensitive NTC temperature measurement channels that precisely measure both your skin and body temperature. This enables real-time detection of temperature fluctuations—a valuable feature for monitoring your overall well-being.
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Ultra-Low Power Consumption – Maximum Battery Life:
Despite its advanced sensor technology, the CARE Air 3 is energy efficient. The GH3220T consumes only 590 µA, meaning your smartwatch lasts longer without frequent charging. This allows a battery life of up to 7 days.
Smart Evaluation & AI-Driven Health Analysis
The data collected is analyzed in the dedicated app using an AI-powered pattern recognition algorithm. This detects irregularities and enables an understandable interpretation of your health data—a particularly valuable feature for the early detection of heart problems and the initiation of targeted interventions.

All Trusted Features – Now Even Better
The CARE Air 3 builds on the strengths of its predecessor and enhances proven features with the latest sensor technology. From precise health measurements to smart everyday functions—everything remains, just even more powerful.
Health Measurements
- Pulse measurement including pulse alarm
- Body temperature monitoring including temperature alert
- Automatic heart rate measurement
- Sleep analysis & step tracking
- Blood oxygen and respiration rate
- Blood pressure measurement (continuous, calibratable)
Additional Features
- Online care function for up to three people
- SOS function
- Bluetooth telephony
- Call & message notifications
- Medication reminder & alarm clock
- Daily trend charts
- Weather forecast
- Watch face designer
- Battery life up to 7 days
- Magnetic charging cable
- Water resistance per IP68 & 3ATM
Technical Details
Battery Performance & Charging
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Battery life: 7–10 days of use, up to 40 days standby
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Battery: 530 mAh high-density Li-polymer battery
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Charging time: Approx. 1.5 hours with magnetic fast charger (incl. short circuit protection)
Display & Design
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CARE Air 3 – Classic:
- 1.43-inch AMOLED display with high color accuracy
- Clear and bright display for any lighting condition
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CARE Air 3 – Modern:
- 2.06-inch AMOLED display with razor-sharp resolution
- Scratch-resistant surface with premium metal frame
Dimensions & Wearing Comfort
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Classic size: 47 mm diameter, 13 mm thin
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Modern size: 47 mm x 42 mm, 13 mm thin
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Wristband: High-quality ergonomic silicone band, 26 mm wide
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Fits wrists: 12 – 26 cm circumference, compatible with standard 22 mm watch bands
Connectivity & Control
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Bluetooth 5.3 for stable connection with low energy consumption
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Rotatable crown for intuitive and comfortable operation
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Free app: HealthWear – compatible with Android 8.0+ and iOS 11.0+