The Fitbit Sense may be able monitor blood pressure soon - NotebookCheck.net News
Why smartwatch-measured blood pressure still isn't 'ready for primetime' - The Verge
Activity Trackers for Women Men 1.1''AMOLED Screen Fitness Watches with Heart Rate Blood Pressure Sleep Monitor Calorie Tracking Step Counter Smart Band for Android and iPhone: Amazon.co.uk: Sports & Outdoors
Forget Apple Watch: Fitbit Could Beat Apple To Game-Changing New Feature