By far the best in the android smartwatch camp. And let me explain:
I have had this watch for exactly 4 months, replacing my first Samsung smartwatch which I had for three years without any issues.
I will start with the positives of the watch:
1. The screen is very good in terms of clarity, brightness, and touch sensitivity.
2. You can make and answer calls, hear and be heard clearly, and overall, you can manage many things from the watch while your phone may be somewhere else, like on a couch. I have found myself being very tired and unable to get up from where I am, and the watch helps me out of that difficult situation!
3. The vibration is by far the best among android watches, I don't know about Apple. We have other smartwatches from different brands in the family, and I can easily compare. There is no chance of missing a notification or incoming call even in a noisy environment.
4. The GPS is very accurate, including altitude measurement (tested multiple times with very small deviation), as well as when I go for a walk, for example. The deviation from the actual distance is around 4 kilometers, for example, with a deviation of 50-100m (tested and measured).
5. The heart rate and oxygen measurements are extremely accurate.
6. The blood pressure measurement, if set correctly, is accurate with a small deviation.
7. The highlight of the watch is the electrocardiogram. If set correctly and familiarized with the application, it actually shows both irregular heartbeats and atrial fibrillation. I have the "luck" to "suffer" from both, and when I showed the watch's readings to my cardiologist, he couldn't believe his eyes (this was one of the reasons I replaced my old watch). However, the fault of Samsung here is that the Samsung Health Monitor app is only available on the Samsung store and does not work with other brands' phones. The heart rate and oxygen readings can be shown with other phones outside of Samsung, but not the blood pressure and electrocardiogram. I don't know if there is a way to download it from somewhere else.
8. It connects instantly not only with my current phone (Samsung Galaxy S21 Plus) but also with any other phone. My previous phone was the Xiaomi Mi 10T Pro, and I had no issues with connectivity. However, when you have a Samsung phone, you get all the benefits of connectivity that come from the same company. For example, finding your phone from the watch does not work with other phones besides Samsung.
9. The watch naturally has Bluetooth, Wi-Fi, and NFC, and you can easily make payments from it.
Negatives:
1. The biggest negative of the watch is, of course, its battery, both in terms of duration and charging time. With everything open (except Bluetooth, Wi-Fi, NFC, I always have the heart rate and oxygen measurement on), it lasts me a day and a little more, which is less compared to my previous smartwatch from the same company, which lasted three days with exactly the same usage. Of course, it's not a reason not to buy the watch, but the frequency of charging can be tiring. In order not to mislead the potential buyer, I have all notifications open.
2. The second biggest negative in my opinion is that you need to have a Samsung phone in order to have all the features (Samsung monitor app, blood pressure measurement, and electrocardiogram). I consider this a major flaw by Samsung because when you buy a product at exactly the same price, it should work with all phones. If it had a different price, I would agree.
Neither positive nor negative:
1. The mobile operating system (Wear OS) is new and has many positives, but there are still many things missing for it to be complete. For example, it has very few watch faces and most of the good ones are paid. It has nothing to do with the abundance of watch faces that Tizen had. However, this does not mean that you won't have options. But the operating system, besides the negatives, also has many positives that you will evaluate over time.
2. My subjective opinion is that the watch is very beautiful and if you change the strap like the one in the attached photos, it can also be suitable for a serious evening outing. Its own strap may be made of silicone, but it is very high-quality and perfect for everyday use in terms of both feel and fastening.
I gave it 5 stars considering the current price. I believe that at this moment there is nothing better in the Android smartwatch camp, and those who buy it will be very satisfied with a slight battery compromise.
I will come back if I happen to see any malfunction of the smartwatch or if I have forgotten something serious.