ONSTON Fitness Tracker Waterproof IP67 Smart Watch Bracelet with Heart Rate Monitor Blood Pressure Blood Oxygen Monitor Compatible with iOS Andriod Smartphones (A59-Black)

Id give this fitness tracker a 5 star rating if it worked with my Marshmallow android 6.0 version , bluetooth 4.1 Zte Zmas Pro phone it has great features and a very soft band. as well as stylish, but since it blocked my incoming phone calls on my phone (causing it to ring once and then straight to voice mail even when the phone was in my hand. and the text notifications were only 1/2 a sec not enough time for me to read as stated i presume it's because its not compatible with my phone. if it had worked then i would not have returned it for a refund. that is how much i liked it.Shame now I have to keep looking for one that will work. its minimum requirements are 4.4 android and 4.0 bluetooth,. I just dont get it. maybe my phone is crap not sure but I wont give it a bad rating. just cause it dont work with my phone.

a device like this depends utterly on the app, it cannot communicate directly with your phone or tablet through bluetooth. If the app sucks, the product sucks. Call me names, but the app's command of English is a separate but important turnoff too.I don't like the app. Every time I open it, it asks for permission to access contacts, make and receive phone calls, take pictures, etc.To some folks that's an upside because the fitness device can perform many remote functions for or through your phone. To get to the functions I really bought it for, I have to Deny these permissions every time I open the app.If all you want is a fitness device that stays connected to the phone quietly in the background and doesn't ask for freedom to range through the rest of your phone's functions and data, this product isn't it, and maybe that product does not exist anyway. For under $100 . . .I'll keep looking for what I want, but I'll probably have to go to an electronics counter and look at products directly to choose it.

This is going back. My husband is a dark complected man and none of the features work on him. If he takes the watch off and puts it on the palm of his hand or on his finger, it works just fine, but the heart monitor/ bp monitor or other features don't work on his wrist at all. It must not have been tested on those with darker complexions. He's been wearing watches with heart monitors for years due to him having CHF, this is the first watch that has completely failed. It looks good, just doesn't work. At all.

Great features on this tracker. Has more features then other trackers. Love that is can detect your blood oxygen level, sleep schedule and other health habits you track for fitness. It is easy to use and has a good battery life. I also love the big screen. It is so much easier to see then other trackers. Waterproof is always good when you wash your hands multiple times a day to keep healthy. very satisfied with my purchase.

As of 6-15-18, the watch keeps popping out of the band. I am afraid it will pop out and get lost. So it's not wearable.when you receive a text the words are small.At night hard to see anything on screen.The pulse oximeter only works when you request it from app off the phone.Other than that it works.

Love this fitness tracker. It pairs with my iPhone and easy to navigate. I have another tracker but it can't compare to this one.

Junk! Oximeter and blood pressure readings terribly inaccurate, seemingly random. Only things that work are the clock and maybe the pulse rate. Returned without testing the pedometer.

Constantly fell off wrist when putting jackets on or off. However we give Amazon 5 stars for sending a label to return the product. Thanks Amazon