CART BP pro Cuffless 24-hour Blood Pressure Monitoring

Sky Labs is a South Korean health technology company founded in 2015 and based in Pangyo, Seongnam. Its mission is to improve the lives of chronic disease patients outside hospitals, starting with hypertension, where conventional cuff-based monitors make continuous and night-time readings uncomfortable or impossible.

CART BP pro is a ring-type, cuffless blood pressure monitor worn on the finger that gives continuous readings in hospital outpatient and ward settings and in daily life, and is prescribed by hospitals as an ambulatory blood pressure monitoring (ABPM) device with a result report for the physician. It received Korean MFDS approval in 2023 and launched in 2024 after 24-hour blood pressure measurement was approved for national health insurance reimbursement. A consumer version, CART BP, and a clinical data platform complement the professional product, which is sold to hospitals and clinics through distributors.

• Ring-type sensor: cuffless blood pressure monitor worn on the finger.
• Continuous ABPM: 24-hour readings including during sleep for outpatient and ward use.
• Physician report: result report summarising daytime and night-time blood pressure patterns.
• Hospital-to-home link: connects hospital monitoring with daily measurements outside the clinic.
• Clinical data platform: research data platform adopted by Korea's National Institute of Health.
• Consumer companion: CART BP ring and app with a blood pressure calendar for everyday tracking.

Cardiology and internal medicine departments in Vietnam could replace cuff-based ABPM with ring monitors to diagnose masked and nocturnal hypertension. Hypertension management programmes in clinic chains could follow patients between visits. Sleep clinics could add night-time blood pressure profiles to sleep apnea assessments.

Allows 24-hour and night-time blood pressure profiles without repeated cuff inflation that disturbs sleep. Gives physicians a structured result report to guide hypertension diagnosis and treatment. Already used at scale: the company reports more than 290,000 cumulative CART BP pro prescriptions by 2026. Backed by 17+ clinical studies and 50+ papers and patents listed by the company.

Hypertension is widespread and under-controlled across Asia, and guidelines increasingly recommend out-of-office and night-time blood pressure measurement. Cuffless wearables that are reimbursed and comfortable enough for 24-hour use are moving from research into routine cardiology and primary care, including in Japan through pharmaceutical distribution partners.

Founded in 2015 in Seongnam, South Korea; named a WEF Technology Pioneer in 2019. Ring device received MFDS and CE approval in 2020. Omron Healthcare invested strategically in 2025, Otsuka Pharmaceutical distributes hospital products in Japan, and CART BP pro has distribution agreements in 8 European and 3 South American countries (2026). Listed on KOSDAQ in 2026.