Porodo Vortex Smart Watch Fitness & Health Tracking with Calls / Socials Notifications, 1.3" HD Touch Screen, Multi-Sport Modes, Sleep & Heart Rate Monitoring, IP67 Waterproof Features, 7-Days Working Time Compatible for iOS / Android App - Black , Model: PD-VORTEX-BK. health functions are impressive - dynamic heart rate, step counting, distance, calories burned, blood pressure, blood oxygen, sleep monitoring . With a battery life of 5-7 days - you can get more out of this watch than most other fitness trackers. With a full touch screen and scrolling functionality, it is top of the range.