KARSEEN H2 Waterproof with Heart Rate Monitor,Smart Fitness Wristband Bracelet Sport Pedometer Activity Tracker Black

I was looking for something which would clearly display heart rate on my smartphone while on my treadmill, and this device does that well, and gives the same reading as my wife's Fitbit, so seems pretty accurate. It doesn't save that information as a graph or allow it to be downloaded which is a slight disappointment. However it also does background monitoring of HR, though this has a fixed interval of 30 minutes between each sample, so is not useful for exercise.The other functions work well, including the sleep monitor, though it takes a while for the sleep data to appear on the phone in the morning. The app is generally well structured and reliable, though the upload function is not very useful as it does not include any cloud storage destinations like a Googledrive account to save to, so is not very useful to me, and there doesn't seem to be any way to add destinations to this. Overall though I'm very pleased with the device and the app - note that the display is white even though it looks a bit green/blue in the picture.

Slightly worried about the IP67 rating. Although the advertising picture has a swimmer icon on it, the box and accompanying documents have nothing mentioning swimming. IP67 only guarantees 1.5 m for up to 30 mins. IP68 should be the standard for swimming. Having said that, I have worn it a couple of times whilst swimming, and it still works. I'm impressed with the sleep monitor. It seems fairly accurate. Not so impressed with the heart rate monitor. It only records automatically every 30 mins. I have had a similarly priced monitor that recorded 24/7 (and it was IP68 to boot), unfortunately that one had a weak strap that broke on me twice. The strap on this one is much better, comfortable and secure. The accompanying app is not the best either, not as good as Lifesense that my previous monitor had. Overall I'm happy with my purchase, it's just a pity the heart rate monitor isn't constant and it remains to be seen whether it stays waterproof on a longer than 30 minute swim.

I have used Fitbit for a couple of years and had nothing but issues with the strap. 3 replacements later it was time for a change. Looked at a lot of reviews and saw this one, which seemed to tick all the boxes and at very reasonable price. Well packaged and presented product. A simple scan of the QR code made downloading the app a breeze. Pairing was simplicity in itself. The tracker came fully charged which was a surprise and after clicking a few setting it all worked as described. Not sure if the steps and miles/Kms are as accurate as some but this is still to be tested. What I do like is that I have worn this all day and night and no irritation from the strap, unlike the Fitbit. The strap is plenty big enough,my wrists are not small and it fits easily with room to expand. It has some useful features such as the turn the wrist setting which you can set to only come on at set times and not wake you in the middle of the night with a blinding light. Also like the take photo setting. It would be good to have a few more time/date settings as these are limited. Very impressed with the quality of the product so far.Update. After almost a year the strap is starting to break. Now I have worn this most of the time and never had any irritation. The battery has started to lose charge a more quickly. I’m still impressed with this, for the price it’s fantastic value for money

It’s such a shame that this has to be a negative review because the product did have good points as well as awful. The display is lovely and clear, you can change the brightness and I loved that it didn’t look cheap and nasty. However... the supporting app and instruction booklet is written in horrendously bad English which at first I found amusing but when you’re actually trying to work out how to do something at the instructions are illegible it becomes very frustrating.The other thing I found to be a quirk at first was that it helps female menstruation cycles by asking date of period etc... but then an hour later I had a notification come up on the watch asking me to change my sanitary towel...?!?! Most bizarre and quite frankly cringy thing to see.The device itself was very glitchy and kept shutting down etc... all in All had to send back as just not working as it should

With so many fitness trackers available and at good prices compared to the expensive fitbits, choice can be difficult. leaving the usual functions out, the difference I have found with this RobotsDeal tracker is it has a wider display area, IP68 classification (up to 30 minutes @ maximum depth of 1.5 metres) so recommended for swimming. A full charge takes less than an hour and it comes with a lead USB-A to a connector that clips to the back of the tracker so you don't have to remove the tracker from the band. The app for this is "H Band" for IOS and Android Smartphones only, so no iPad or tablet, but If swimming is your thing then this could be a good purchase.

This is a great product... and definitely waterproof...I swim in it nearly every day. Not really sure how accurate it is as I wear it overnight ....it resets at midnight ...and it always has a few steps registered in morning!! Unless I sleepwalk!! Not complaining as I love this gadget...not least the way a text message will appear ( didn’t know it did that)....as the instructions are illegible , badly translated gibberish!!

If you are looking for a low cost "Fitbit", especially one that is waterproof, then this is not a bad buy.The instructions are not at all clear and very poorly translated, for simple time, step count, heart rate and incoming call, SMS notification it works fine, but trying to get other things to work is not so easy.The APP is not the best or easiest to use, I have seen much better.

It's a nice little watch, great for telling the time and date. Steps are just an average as it counts up when your arm moves. Sleep and wake up time is never right! It's definitely waterproof as I've been swimming a few times.