Review on ⌚ Waterproof Smart Watch for Android Phones and iOS - CanMixs Smart Watches for Women and Men, Sports Digital Watch with Fitness Tracker, Heart Rate, Blood Oxygen, Sleep Monitor, Touch Screen - Compatible with Samsung and iPhone by Matthew Coste

Looks good and does everything I want. O2 and sleep time/quality monitors are my favorites. I haven't been anywhere to check the accuracy of the blood pressure and heart rate, but they appear to be correct. A big plus for me is the adjustable strap, which is perforated end to end and is so easy to adjust that it even fits my thin toothpick wrist. The dial is not too big for the wrist so I can wear it anytime. Oh, even better charging, magnetic tips on the little plate on the back of the watch face, USB plug and you're done. The watch runs 24/7 and the battery lasts for several days. **Highly recommended. UPDATE: My watch's bluetooth stopped connecting 2 days after the return deadline; I contacted Revain customer service first and they helped me a bit and then gave me the seller's contact information. I emailed the seller who worked with me for a few days to get BT working and then sent me a BRAND NEW WATCH! EXCELLENT CUSTOMER SERVICE Revain and seller.