Fitness Activity Tracker for Men Women, Heart Rate Monitor Blood Oxygen Sleep Tracking Steps Calorie Counter, IP68 Waterproof 1.14'' HD Screen, Compatible with iPhone Android Smart Phones

Flaws: Even new, pretty much just one day of battery life, so have to charge for a while every afternoon.Blood pressure useless (I had weak hopes for it).Sleep tracking can be thrown off if you get up during the night for more than a few minutes.Pluses: Heart Rate variability + Lorentz Scatter Diagram: the math here is trivial, so why don't US products do this? "Because it makes medical claims" - doesn't really claim anything, lets you (an adult) evaluate and ponder. If your heart has AFib or PVCs (midnight to 7AM), it will show up in this data. For a $50 watch!4 Stars for this feature alone; one star deducted for battery life.Blood oxygen monitoring is another great feature. Heart rate, sleep, steps monitoring can all be helpful.EKG feature is a plus - inherently noisy, you have to be steady and make good contact, but - $50 watch!The WoFit app has been updated and is improved over a year ago. (I don't permit auto updates.)

I would really like to give this a 5 star rating and would have if I reviewed it right after I got it. However, it has started doing weird things. I think I need to return it for replacement.I bought this as a blood pressure/sleep apnea helper. I initially set it up to monitor my blood pressure and blood oxygen levels all day long. They warn this will use a lot of battery - in my mind that means you have to charge it ever 36-48 hours or so. I was getting great data and then one day it just wouldn't turn on. Totally blank screen. So I charged it to see if that was the problem - it still had a charge according to the indicator so who knows what that is all about. It does that at random times with no warning. Then it started needing to be charged about every 12 hours - that is inconvenient so I quit monitoring my blood pressure all day long. Random black screens continue to this day. Then I got up the other morning and there was absolutely no data - I didn't walk, I didn't sleep, I didn't have an blood oxygen readings, etc. So I turned it off and turned it back on and then it started working. Again, the next day I got up with no data - same as the previous day. So now I charge it every morning and turn it off and on every night before I go to sleep. It's really what I would consider a high maintenance watch. I'll be reaching out to the vendor to see about returning it. On top of all this, I went to see the cardiologist Wednesday and compared the blood pressure reading to his BP reading. The watch was off from that so not quite accurate in the BP monitoring but I guess ok for daily living. I've already had one friend who was going to get one - it really does have some very nice functions for an affordable price - but I suggested she wait until I get this all resolved.

I rarely leave reviews unless something is IMO extraordinarily good, bad or useful.In this case, it is the usefulness of this smart watch, and the reasonable price that has triggered this review.There are a group of people who have significant, irregular heart rhythms that are completely asymptomatic.There are also those who have intermittent: very high heart rates, high blood pressure, dizziness or fainting spells; but when their doctor sees them and checks their heart rate, BP and does an ECG, everything is normal. For many, that may be because they don't have a significant problem with their cardiovascular system. For others, there may be a paroxysmal (intermittent) problem - that is not acting up when the doctor checks them (which typically not on the same day they feel unwell).In my case I was totally asymptomatic. I went in for a simple cataract operation, and the next thing the operation was cancelled. Instead, I got referred to hospital as an emergency due to an arrythmia. I couldn't believe it. I felt fine. But after several days in hospital on 24 hour monitoring it was obvious I was not fine (I have a medical background). Medications were started, but the arrythmia was not under control when I was sent home.I got an oximeter (that's one of those simple gadgets put on your finger that measures your oxygen level and heart rate - often used in hospital and medical clinics - which are also available at pharmacies and online such as on Amazon [be aware not all medical gadgets give reproducible readings]). I got admitted again when the oximeter registered a heart rate of almost 170 even though I was on multiple powerful anti-arrythmics. (I didn't feel a thing was wrong).I was naturally worried about being unable to tell what was going on. Arbitrarily checking to see if my heart rate was normal on an oximeter was not adequate.I'm privacy advocate, and had always refused any kind of the smart watches my husband wanted to get me for my birthday etc. But I realised intermittently checking my heart rate with an oximeter wasn't good enough. We're retired and the fancy smart watches (worn by a number of the cardia ward nurses) were very expensive. So I researched what was available and decided to give this one a go because it was reasonably priced. It includes a heart rate, blood pressure, oxygen level, sleep, ECG, steps walked amomgst other functions.I can confirm the HR function of this watch (at least in my experience) matched the Kardia machine (described below), and the ambulance ECG. That is one of the most valuable parts of this watch - because, unlike an oximeter, the watch can be set to continually monitor your heart rate. When your heart rate is over a certain rate (which you can choose) - a light comes on and it vibrates. It does the same when you get a phone call or text message, an unexpected benefit (so not all alerts are HR related).I think the watch BP underestimates BP (but realistically, how accurate can you expect a watch to be at registering your BP). The O2 level also matched the ambulance oximeter level. The ECG in my experience had too much artifact, though towards the end, it gives a gist of thythym, but I wouldn't rely on that function.I also bought a portable DIY ECG machine called a Kardia (which I would recommend in conjunction with a smart watch such as this, for those with asymptomatic heart rhythym problems). Its not much bigger than a credit card. It uses bluetooth to transfer your ecg to your phone and you can then save the ecg as a file on your phone, email it and/or print it.On the latest occasion when I had a new problem and the ambulance arrived; I had the Kardia 6L 6 lead print-outs of my ECG - and the Apple MorePro App showed how often/how long the heart rate was very high (a proxy sign of likely arrythmia, at least in my case).I'm back home on a waiting list for surgery. The watch is constantly measuring my heart rate - and the current cardiac cocktail of meds is keeping the heart rate in the normal range, so this is a relief.BUT - besides the IMO likely inaccurate/unreproducible BP measuremeny experienced in my case - how this watch is charged is a problem - which the manufacturer needs to address - as this is otherwise a brilliant device for monitoring heart rate, O2 and sleep etc - the charging method for this device is an issue.You have to pull one side of the watch band off (Tip - it's the side opposite to the metal bar on the watch face) to expose a -->curved<-- plastic looking USB charger, which does not always fit correctly in USB charging slots (which are not typically curved). So, it may not charge.Also, I bought one of these watches for my husband. It did not take long before in the course of pulling the band off to recharge the watch, the USB broke. He was reported this to the company, as it is virtually new - but so far they have not replaced it. I've never used a Smart Watch before and don't know how they typically charge - but my husband has bought many over the years - and none of the charging connectors has ever broken on the others.So, be careful when you pull off the strap to re-charge it.Summary - this relatively inexpensive watch is provides a reproducible HR and O2 measurement, and can provide important info for people with asymptomatic arrythmia problems. Though I would recommend using a Kardia ECG monitor - once warned by the watch that there seems to be an ongoing heart rate issue.______I have no financial affiliation with any smart watch maker or the complany that makes the Kardia event monitoing ECG machines (both bought by me through Amazon) - bar having bought them.

Update Aug 15, 2020: OK, the moisture issue is getting annoying. I'm outside in the hot sun and my wrist sweat is causing the tracker to vibrate randomly and switch to random screens. I have to take it off and let it dry before putting back on. Downgrading to 3 stars...I like the tracker. Most of the data seems to be fairly accurate. I especially like the sleep tracker. I have sleep apnea and use a cpap machine nightly. Seeing a graphic representation of how long and what type of sleep I'm getting is interesting. Also like the pulse ox. Same readings as I get with my dedicated pulse ox finger meter. Not sure I would trust the bp or ecg data but again, it is interesting to see. My only knock is that moisture (sweat or shower) causes the watch to behave erratically, vibrating repeatedly for no particular reason and displaying strange screens that don't seem to react to touches on the metal menu bar. The moisture has not damaged the watch and if I take it off and detatch the band from the charge port for a half hour to dry it out then it returns to normal operation again. Also, the morePro app has a lot of features and is nicely designed, but it loses pairing with the watch frequently and has to be re-paired. Gave it a 4 star due to moisture and pairing issues.

I absolutely love this tracker, especially it's real time BP monitoring. I have a hypertension problem and I am using it to track my BP readings throughout the day. I understand that it is not clinical grade but it is sufficient for me to determine the trends. Also comes packed with a host of other options like ECG, Spo2, HB and sleep monitoring etc. All for a very affordable price. Really value for money!

This watch you have to charge it through your USB device.You have to plug the watch into a device.I wish I knew that before buying.