I've had some heart issues for a long time and this past year, they've gotten to the point where I need to do closer monitoring. Then, in July, I had a loop monitor implanted. While it sends a reading to my cardiologist's office every night, I needed something that would alert me when my heart rate fell above or below the doctor's parameters for my situation. I did a lot of research into a lot of watches. I have a Galaxy S22 Ultra so looked at the Galaxy watches and tried one, but the battery life is terrible. I needed a watch that had a battery that would last more than 12 hours with constant heart monitoring. I was already using an Amazfit GTS 4 Mini and loved it, the battery lasted almost 14 days, but it had no alert for heart rate and also was missing a couple other things I wanted/needed, so after looking at so-many-watches, I decided to try the Balance. So here's my review.The watch is large. At least for me, but the screen is amazing! Clear, easy to read, Amoled so the color is great. I chose to use the 'use your own photo' watch face which is new (I think) for Amazfit and I like it. There are several others to choose from and if they stay true to form, more will be added. There are a lot of apps pre-loaded on the watch and a lot to choose from to load so that would probably appeal to many who will use this for fitness. I do not so I can't speak to the fitness portion of the watch. I keep track of my steps/activity on the whole, but not any specific exercise. I got the watch on September 2nd, charged it, and with all of the heart associated apps turned on to run all the time (including running the heart rate monitor every 60 seconds,) I didn't have to charge it until the 11th, and even then, I was still at 18%, but we were going on vacation, so the battery life is great. Like I mentioned, the watch is huge, at least for me. It's 46mm, but light weight, so I don't really notice it much. It has a relatively slim profile on the wrist so I'm not banging into things with it like I thought I would. I did change the band to a stainless steel one because any silicone bands cause a rash for me. Those are the basics. Here's some of the pros and cons.PROS:Huge, clear, bright face that's easy to read, even for people who need glasses.Several watch faces to choose from including one you can personalize. Big plus!Heart/Health monitoring has been pretty accurate so far as tested at the cardiologist's officeSleep monitoring seems to be accurate, matching those times I wake during the nightWill follow DND on your phoneWill sync with Google Fit and a couple other third party health apps nowDifferent sounds per alerts so you know what alerts are coming in (can't change them though)Syncs well with Zepp app and changes on app are immediate on watchSilicone band will fit a 5-1/2" to 10"+ wristCONS:NO ECG. None of the watches Amazfit sells in the US has ECG. That was the first question I asked them and from their response, for the foreseeable future, they will not have a watch in the US that has that.The winder is very large and really sits high on the watch. It has the potential to catch on things and does during the night so if you use DND and wear it to bed, it will catch on the sheets at some point, wake the watch, waking you.No tap-to-wake, which my GT4 Mini had and which I miss a lot. It will still 'lift to wake' if you set that, otherwise, you have to push the winder.Second button on the watch is for workout information which I don't use, but it's very flat and seems like it would be hard to use while very active."Rotate the crown" must mean the winder because the crown doesn't rotate and while the winder does, it only makes the face larger and not permanentlyTakes a 22mm watch band! Don't make the mistake of buying a 20mm which is a standard size.BEWARE! I went a whole day without getting any notifications. I reached out to Amazfit and they had no idea why I wasn't getting any either. Low and behold, there's an option called Cover To Mute. If that's checked and you're wearing a long sleeve shirt or sweater that covers the watch, you won't receive any notifications because the face is covered. Just letting you know!That's a flyover of the watch. On the whole, I like it. I've never been a big fan of the Zepp world. I'd be a lot happier if it was Android OS of course, but I understand their desire to work with either Android or Apple. They're getting smoother with the interaction between their OS and Android though. I'm sure I've missed a bunch, but this will give you a good idea at least.