







Kardena CARE Air 3 – 2025 Blood Pressure Smartwatch with German Sensor Technology & Microairbag
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Kardena® CARE Air 3 - The Future of Precise Wrist-Based Blood Pressure Monitoring
THE SECOND GENERATION OF PRESSURE-BASED BLOOD PRESSURE SMARTWATCHES FEATURING OSRAM SENSOR TECHNOLOGY FROM GERMANY!
At the beginning of 2025, Kardena® is once again setting new standards in digital health monitoring with the CARE Air 3. Building on the success of the Air series, this latest model integrates cutting-edge sensor technology to deliver even more accurate blood pressure measurements directly from the wrist. The official launch date is February 1, 2025.
What Makes the Air Series So Special?
The CARE Air series stands out with its innovative microairbag technology. A miniature air cushion integrated under the watch strap inflates in a controlled manner, enabling a pressure-based blood pressure measurement that mirrors the methodology of traditional upper-arm blood pressure monitors.
As a result, the CARE Air 3 offers significantly higher measurement accuracy compared to standard fitness trackers and smartwatches that rely on optical sensors. This state-of-the-art technology ensures reliable blood pressure readings and enables more precise health monitoring—perfect for those who prioritize their cardiovascular health.
What Makes the CARE Air 3 Unique?
The health smartwatch with German technology stands out with numerous technical and functional advancements, including:
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New Health Sensors:
- 8-channel heart rate sensor
- 16-channel blood oxygen sensor
- Bluetooth Calling with SOS Function: Stay connected and quickly request help in emergencies.
- AMOLED Display: A crystal-clear 2.06-inch HD display ensures optimal readability and a premium look.
- Rotating Crown: Provides an intuitive and comfortable navigation experience.
- Microairbag Technology: Enables precise blood pressure measurements on the go, inspired by clinical-grade upper-arm blood pressure monitors.

Kardena CARE Air 3 - Feature Table
Feature |
Description |
Blood Pressure Monitoring |
Pressure-based measurement using Microairbag Technology, inspired by clinical upper-arm devices. |
EKG (Electrocardiogram) |
Includes EKG nano-conductive glass for precise heart rhythm monitoring, analyzed with AI. |
Heart Rate Monitoring |
8-channel heart rate sensor for real-time and continuous tracking. |
Blood Oxygen Measurement |
16-channel SpO₂ sensor for high-precision oxygen saturation monitoring. |
Sleep Tracking |
Monitors REM sleep, deep sleep, and light sleep phases for comprehensive sleep analysis. |
Temperature Sensor |
Dual NTC temperature sensors for body and skin temperature tracking. |
AI Health Analysis |
AI-powered detection of heart rate variability (HRV), stress levels, and circulatory health. |
Online Care Function |
Allows up to 3 caregivers (family, doctors, or nurses) to monitor health data in real-time. |
Bluetooth Calling & SOS |
Make and receive calls with SOS emergency assistance. |
Display |
2.06-inch AMOLED HD display with high brightness and crisp resolution. |
Rotating Crown |
Intuitive navigation through menus with a rotating side crown. |
Battery Life |
7-10 days of usage, up to 40 days standby with 530mAh Li-Polymer battery. |
Charging Time |
1.5 hours with magnetic fast charging (short-circuit protected). |
Connectivity |
Bluetooth 5.3 for stable and energy-efficient pairing with smartphones. |
Water Resistance |
IP68 & 3ATM water-resistant, suitable for daily wear. |
Customization |
Compatible with standard 22mm watch bands and includes a custom watch face designer. |
The Innovation: EKG Nano-Conductive Glass Included
The CARE Air 3 takes health monitoring to a whole new level by combining cutting-edge technology with medical precision. One of its standout features is the nano-conductive EKG glass, specifically designed for accurate recording and interpretation of electrocardiograms (ECG/EKG).
Simple and Intelligent EKG Interpretation
Once your EKG data is recorded, the CARE Air 3 app analyzes it using an advanced AI algorithm that detects patterns of potential heart conditions. This technology scans your reports for irregularities and provides a clear and understandable interpretation, making it an invaluable tool for monitoring your heart health.
Why Is the EKG Glass So Important?
The CARE Air 3 allows you to detect potential heart problems early, before they develop into serious health concerns. By combining state-of-the-art sensor technology with intelligent data analysis, the smartwatch provides precise insights into your heart activity.
This feature is particularly valuable for preventive healthcare, helping you identify irregularities early and take necessary countermeasures before complications arise—whether by adjusting your lifestyle, consulting your doctor, or seeking further medical evaluation.
Advanced Sleep Monitoring with CARE Air 3 – Now with REM Sleep Analysis
The CARE Air 3 enhances sleep tracking by not only analyzing light and deep sleep phases but also monitoring your REM sleep, the stage crucial for memory formation and emotional processing.
Why Is REM Sleep Tracking Important?
- Mental Health Improvement – REM sleep is vital for processing emotions and managing stress. Tracking it helps optimize mental balance.
- Cognitive Performance – Supports learning, memory, and creativity. Insights from the CARE Air 3 allow you to refine your sleep routine for better brain recovery.
German Precision – Powered by OSRAM Sensor Technology
The CARE Air 3 features cutting-edge German-engineered OSRAM sensors, delivering unmatched accuracy in health tracking. The SFH2703 sensor, developed in Regensburg, Germany, enhances blood oxygen and circulation analysis.
Unlike standard smartwatches that rely on single-wavelength light, the CARE Air 3 uses three infrared wavelengths (680 nm, 750 nm, 910 nm) to precisely measure blood flow up to 4mm deep, ensuring more reliable health data.
With continuous oxygen saturation and respiratory rate tracking, real-time health trends can be viewed directly on the watch—helping you stay proactive about your well-being.
Health functions:
✅ ECG incl. Photoplethysmography
✅ Heart rate
✅ Blood pressure
✅ Blood oxygen
✅ Body temperature
✅ Respiration rate
✅ Sleep quality
Smartwatch functions:
✅ Incoming call display
✅ Message display
✅ Camera control
✅ Music control
✅ Watch dials
✅ Timer / alarm clock
✅ Weather
✅ Sports mode
✅ GPS track function
✅ Maintenance function
✅ Step,- Calories & Odometer
✅ Own app
Material
- Casing: Stainless steel & metal alloy
- Casing back: Polycarbonate, Acrylonitrile-Butadiene-Styrene (ABS), and medical-grade 316L stainless steel.
- Display: TFT LCD display
OSRAM Sensors
- Multioximeter sensor SFH2201
- 14% spectral range
- 7-fold Fresnel lens
- These sensors analyze blood flow in the topmost millimeters of the wrist skin using light wavelengths of up to 750 nanometers.
EKG Max8617 by Maxim Integrated
- 3 EKG electrodes
- 512Hz sampling frequency
Battery Life: 5-10 days
- 3.7V/850mWh lithium battery
- Charging via included fast charging cable (approximately 1.5 hours).
View-angle stable display (178°, IPS) in a round design
- 1.3" / 3.3cm diameter
- Comes with 80 watch faces and a watch face editor.
IP68 water resistance
Dimensions: 46mm diameter, 11.5mm thin
- Suitable for wrists with a circumference of 14-24cm
- Compatible with standard 22mm watch bands.
Manufacturer Information |
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Kardena GmbH Siemensstr. 34 53121 Bonn Germany |
Current Batch Number |
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C209 |
Section | Instruction |
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Intended Use | This product is exclusively designed for use on the human body and according to the user manual. Any other use, particularly for medical diagnosis, is explicitly prohibited. |
General Safety and Warnings |
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Electrical Safety |
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Usage Guidelines |
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Disposal and Environmental Protection |
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Maintenance and Repairs |
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Disclaimer of Liability |
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Legal Consequences of Non-Compliance | Non-compliance with these safety instructions may result in the loss of warranty and guarantee claims. |
Product / Trade Name | Type / Serial Number |
---|---|
Kardena® CARE | CRE1 |
Kardena® CARE Plus | PLS1 |
Kardena® CARE Plus 2 | PLS2 |
Kardena® CARE Pro 1 | PRO1 |
Kardena® CARE Pro 2 | PRO2 |
Kardena® CARE Pro 2 Connect | PROC |
Kardena® CARE Pro 3 | PRO3 |
Kardena® CARE Air | AR1 |
Kardena® CARE Control | CC1 |
Kardena® CARE Control 2 | CC2 |
Kardena® CARE SOS 1 | SOS1 |
Kardena® CARE SOS 2 | SOS2 |
Kardena® CARE Pro 4 | PRO4 |
Kardena® CARE Pro 4 Plus | PRO4+ |
Kardena® CARE One | ONE1 |
Kardena® CARE Life | CL1 |
Kardena® CARE Band | CB1 |
Kardena® CARE Pro 5 | PRO5 |

Social Commitment
Connecting People
At Kardena, we believe that true strength lies in community. In a world often shaped by hustle and stress, it’s the moments of togetherness and support that truly help us grow.

Rethinking Health
Holistic health prevention for your well-being.
In addition to our smart health watches, Kardena Health offers high-quality, organically certified supplements – for more energy, balance, and vitality.