A Contactless Sleep Sensor That Reads Vitals by Radar
Kardian Somily is a contactless sleep sensor that reads resting heart rate and breathing by radar through bedding. It is a wellness product for home use.
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Kardian Somily
A Contactless Sleep Sensor That Reads Vitals by Radar
Kardian, legally Xandar Kardian Inc., builds radar sensors for sleep, with offices in New York, Toronto and Seoul. Somily is its home product, and the page describes it as "Wellness, for your own bedroom. Not a medical device." It is a contactless sleep sensor: a small disc fixed to the wall that reads vital signs through the bedding, with nothing worn on the body. It rests on the same radar technology as Kardian's clinical XK300 Essence, yet the page states that Somily is "Not the XK300 Essence and not equivalent to it." The site lists an iF Design Award 2026 for the product.
How It Senses
Somily relies on impulse radar, which sends very short radio pulses and reads how they bounce back. The page gives a centre frequency of 7.29 GHz inside a 6.5 to 8.5 GHz band. Its reach is 3 m for heart rate and 7 m for breathing, over a field of view of about 130°. Data travels to the app over home Wi-Fi, and Bluetooth serves only during setup. Kardian states there is no camera and no microphone, and that the radar "cannot see a face or hear a word." The disc measures 8.5 × 6 × 5 cm, weighs 120 g and runs on continuous USB power.
What It Reports
The sensor reports resting heart rate, breathing, sleep, time in bed and "how settled the night was," a measure of body restlessness. Breathing rhythm is presented as a wellness trend, and a feature called Heartbeat Clarity is labelled "investigational." The free XKare app, for iPhone and Android, shows resting heart rate, breathing, basic sleep and time in bed in daily and weekly views. A fuller tier adds comparisons with the last seven and fourteen nights, breathing patterns, in-depth sleep and a chat feature called "Ask your data." The app can also alert when readings leave ranges the user sets, and share readings with a family member or caregiver.
Placement and Two People in One Bed
Three placements are listed. The first is above the headboard, about 1.5 m from the floor. The second is near the bed corner, just above the mattress. The third is behind the bed frame, as long as the bed is not flush to the wall and the headboard is not a solid metal plate. Couples use two units, each mounted above one side and paired to one person in the app. If a sensor picks up two sets of vital signs, it pauses. The page adds that a couple of hours on the wrong side "barely moves your baseline."
What It Is Not
Kardian is direct about limits. The page says "it does not diagnose, and it is not an alarm," and the device is not meant for emergencies. Heartbeat Clarity remains investigational, and the app needs a home Wi-Fi connection. Comparisons run against the user's own recent nights, so the readings describe personal patterns, not medical findings. For clinical use, the site sends clinicians to Kardian's separate healthcare pages.
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