This hybrid watch was just what I was looking for. It is sharp looking, notifies me of calls and texts, but does not bother me other than that and has a battery life of a month. Four people this month complimented me on how gods looking my watch was. Happy consumer.

I like this watch, but it's my first and only smart watch. I have had some problems with the app, but online support has generally been responsive and helpful. It basically works as promised. Some research of the literature supports that the ScanWatch ECG is about as good as the other watch-based devices and will signal any AFib AFTER you take an ECG. I'm disappointed that the watch DOES NOT have automated AFib detection notifications or heart rate notifications in the US. These features are not yet approved by the FDA. You have to read the fine print to figure this out. If you need these features, then you need an Apple Watch. But that requires an iPhone and I'm not going there. I agree with others that the Steps seem to be off, but I almost always carry my phone (for music or podcasts) and the GPS provides a reliable measure of distance covered. I'm not worried about a specific number of steps, so I think the watch is plenty good to show my effort/performance over time. I like the looks and battery life is reasonable (weeks, not 30d). The sleep tracking is not perfect, but it has helped me understand and track my sleep quality (my opinion). When the watch says I had 50% deep sleep, I can tell that I'm more rested than the many nights I have with lower numbers. And it records heart rate during the night, but I'm not sure it can pick up short-term palpitations. We'll see. If you feel something, you can always take an ECG since it's on your wrist! I think this DATA will help me figure out how to get a better night's sleep. The watch literature says it's not guaranteed to work over two years, so consider paying for product insurance if you want more than that. I consider it a cost worth paying to track heart health and sleep.

Background: I own a G-Shock Steel which I love but it lacks smartwatch features so during Prime day I purchased a Amazfit smartwatch that looks very much like an Apple Watch. Unfortunately, I missed the round, analog look and the battery did not meet expectations so I returned it for a Withings Steel HR Sport in black. I liked it but the thin watch hands and their color against the black watch face made reading the time quite difficult, so I returned that. Next came the Timex Metropolitan R AMOLED. This is not a hybrid (my mistake). I liked this watch but it had limited crono faces to choose from and you could not choose / modify the complications. Raising the watch to get the face to appear meant pausing before you could get a quick read of the time which is why I prefer an analog face. Not completely satisfied, I returned and then got a Citizen CZ Hybrid smartwatch. I really liked the look and function of this watch but came to find out that even though it states water resistance to 3 atm, it is only "splash proof" and I confirmed this with Citizenwatch. So essentially it's a dive watch look-alike that you can't even wear in the shower. This got sent back.

Enter the Withings ScanWatch Horizon: Yes it's expensive but this is a quality timepiece. With its high quality stainless steel it has weight but not too heavy that I could not sleep while wearing it. The flat sapphire glass is beautiful and very scratch resistant. The bevel rotates anti clockwise but you need to purposefully turn it. It comes with a very nice stainless steel bracelet and a color coordinated silicone band. You can wear this watch swimming, one of the many activities you can track and it's water resistant to 5 atm (300 feet). The watch face (I got blue) is beautiful and the hour markings and hands glow in the dark.

The Withings smart watch functionality is very good although I think sleep tracking can be improved as for example while I was awake in the middle of the night, just lying there was counted as light sleep. Pulse rate, ECG, SP02, Notifications, intelligent wake alarm are all great and bonus, it has a 5 year warranty. So when you take this into account, the price tag is not so bad. I love it and could not be happier. Thanks

I primarily use it for sleep and other health metric/s tracking. The oxygen saturation is clinically validated but the actual test/validation is just for the part that the watch can let you know when your oxygen saturation gets too low during sleep indicating potential issues like sleep apnea. It does not mean however that the oxygen saturation readings are as accurate as an off the shelf pulse oxymeter. If you are buying it for the accuracy, you are better off with actual medical equipment.

Now the app is reasonably laid out, but will take some getting used to initially. The most frustrating part was when the app wouldn't sync because it closes in the background and you won't get any notifications until you reopen the app. After a lot of frustration and almost returning the watch I discovered that the problem was how android manages background apps, and I had to turn off battery optimization for this particular app so that it doesn't close the syncing function in the background. The app should have given some information about this when setting it up so that I could do it. And maybe build a better app where the battery optimization can automatically be turned off when you install it? I wonder if Android doesn't let them do it.

ECG function needs the info to be sent to some clinic to be validate for the first time and it takes about 24 hours for this, and after that your watch just tells the result from the second time.

Battery is amazing but don't be fooled by the 100% indicator. It stay on 100% for 4 days and then drop about 5% per day under normal use for me. I think the battery capacity was not well calibrated in the software, or maybe small batteries are inherently hard to calibrate in the software?

The best part about this watch is how it just looks like a watch, no unnecessary styling and/or drama in it. No one bats an eye if you wear this to a formal event and doesn't shine the bright screen in your face when you're going to bed. I found it to be slimmer than other "smart" watches too, which makes a lot of difference for me.

Choose this over other smart watches if you don't want a distraction on your arm. There are plenty of advantages of "smart" watches too, but make sure they are actually solving an issue you have. Like I have my phone with me all the time and I have a Google nest in every room, I don't need to replicate the same stuff that they can do on my wrist. Which is why I chose something that helps me keep track of my health in but is more like a watch than anything.

One small thing, I originally thought that the small dial shows battery % but it actually shows the % of step goal you completed for the day. I felt we should have an option to change what it indicates. I don't need that metric on my watch.

There is restriction that the ECG feature can only be activated in the US region for ScanWatch sold in the US. You may need an US address or phone number depending on the region according to the description from Withings.