By Priyanjana Pramanik, MSc. Reviewed by Benedette Cuffari, M.Sc. Sep 8 2025 A new review shows that while wearables can reliably track steps and heart rate, their accuracy for sleep, stress, and blood pressure remains uneven, raising questions about when these devices will be ready for clinical use. Study: A guide to consumer-grade wearables in cardiovascular clinical care and population health for non-experts. Image Credit: Nan_got / Shutterstock.com A recent review published in  npj