R2 Smart Fitness Heart Rate Monitor Wristband with Sleep Monitor, Professional Dynamic Heart Rate Monitoring, Sport Pedometer Activity Tracker with Alarm (Step Tracker, Calorie Counter, Sleep Tracker) Compatible with Android, iPhone IOS Smart Phone, Selfie Control Remote, Bluetooth 4.0 Waterproof Bracelet, Sport/Office/Sleeping Health Monitor and Reminder, Lovers Couple Watch, Black [ 2017 New Version ]

LOVE this item, it does things so well. few other I have used are not that great but this does everything seamlessly as it says on the tin. and its much more attractive and practical to use. highly command it.

Adequate but not as good as some others out there ....but a Great price

Started off good but within 4 weeks stopped syncing with the app, and then stopped working completely. Watch only holds charge for Max 48 hours, overall a very poor piece of equipment.

Not the most accurate heart rate monitor. Bought this for the gym as I train on the cross trainer. Your heart rate can be monitored continuously but sometimes it shows that your heart rate is high say 150 but then remarkably drops down to 70 at the height of your workout. I wouldn't rely on it to be very accurate but it's ok to a basic workout.

Only had monitor for a short time. Not a bad little unit, easy to use, comfortable when on wrist. A few more instructions in its use & set would be more helpful, as I don't know what some of the management symbols are meant to mean or do, hence 3 stars. I did try an overnight wear of the bracelet, but due to it vibrating repeatedly I took it off. Altering settings might eleviate this litte problem.Overall, it does what I want it to do & got it for.I have increased my rating to 4 stars, after contact from the manufacturer regarding my concerns, they obviously want to provide the buyer with a good product.

Everything went fantastic, The watch is working perfectly fine, it's quite elegant and smart, exactly as shown on pictures. It came with instructions and generaly nicely packed actually, that could be a good present for someone as well. I reccomend this pruduct.

Not bad product

Not good at all. Keeps dropping Bluetooth connection even when less than 18in away from phone. Heart rate monitor doesn't always work. Sleep monitor function is unpredictable.