DENISY Fitness Trackers Wireless Activity Smart Bracelet with Heart Rate Monitors for IOS Android Activity Watch Wristband.

After my wife got her fitbit charge 2., I decided to have one too. Debating whether fitbit 2 or much cheaper version. In the end, I decided to risk it. And I am very pleased with this purchase. If anyone has extra $100 to spare, fitbit2 is definitely a better choice. It has a much better battery. Its heart monitor is better and better App. But for me, my requirement is a decent step-counter and heart-rate monitor. Plus some sleep pattern monitor. I think DENISY is good enough. I charge the battery every 2 days after reaching 50% mark. Its step-counter is just as good as fitbit 2. And its heart rate monitor is in the ballpark. And I don't use any of the app much, anyway. Remember this is not a medical device, just an indicator of the daily activities.Not sure the life-span of the battery with its more frequent charging, though. But I have not reached that stage yet.

I am sooooo regret that i bought this product.I tried at least 50 times, but i didnt get any heart beat detection result, but thats my main purpose why i bought it.See you in rubbish bin, good bye.

Did not meet my expectations, HR monitor display took too long to start & didn't display long enough & results didn't match what my doctor got at the same time during my physical; pedometer/step count results are questionable, didn't match with a dedicated pedometer; battery life is just a few days and there's no indicator that the battery is low or dying. A small thing but the indicator light on the face of the tracker never light up as in the ad picture.

It has no way to set the time and it will not connect with my smartphone or my boyfriends I-Phone. I cannot use this watch for anything if it is inaccurate. The directions are vague and do not tell you how you can set the time, I assume when it hooks up with a smartphone that it automatically sets up the accurate time. I have no idea. It looks nice but I cannot use it.

Bought it for my daughter as a starter fitness tracker to determine if she liked it. Worked well for about 5 months, but the charger no longer fits snuggly and will not charge. I tried to clamp on the charger, but there is play in the charge cable and the probes slide off of the fitness tracker charge terminals. I looked for a replacement charge cable and none appear to be available. Given the low price of the tracker, I'm not surprised. I might have been happy if it lasted a year instead of five months.

Certainly waterproof as I swam a few hours and still ok.Remember activities and transfer to phone once reconnected. Apple watch 2 does not....Last several days between 2 charges.Design and solidity can be improved, glass scratch.

I loved this watch for the first five months, but for the sixth and now seventh month, it's been dying. It doesn't hold a charge anymore so I have to charge it everyday and a few times a week it turns off and won't turn back on for hours. When I first got it, I only had to charge it every two or three days. The only thing I still like about it is that it's always been waterproof enough for me to have it in the shower, but that doesn't mean much if it's not even working.

Lasted less than a year before it wouldn't hold a charge any longer. Sleep tracking stopped working after 6 months.3 stars because when it worked it was great and did last 10 months of every day use.