Pretty much everything I need is in this watch. The ability to talk is a big plus, since it is not always convenient to get a smartphone out of a jacket pocket or bag. The presence of Samsung Pay, fast and non-buggy software based on TIZEN OS is also very pleasing. There are quite a lot of applications in the store, not to mention tens of thousands of watch faces. Sports "gadgets" are of little interest, so I do not presume to judge how accurately the consumption / consumption of calories is measured. Here, however, the result depends on the quality and frequency of data entry by the user himself.
As for the heart rate monitor, it is very accurate (it was compared with the readings of two stationary devices from different manufacturers) and by default reports if the heart rate exceeds the norm. In the United States, with the spring ate, Gear Active2 will open the possibility of measuring pressure and taking ECG, but in the 2022 it is hardly possible to wait for these options, since local law prohibits such devices from being considered medical devices. So send all questions about this not to Samsung, but to Okhotny Ryad.
The battery is surprisingly good for a 40mm version. Without the "always on screen" mode turned on, with Wi-Fi turned off, but with Bluetooth connected and a heart rate measurement every 10 minutes, the watch stretches 2.5 days. During this time, I usually make several calls, receive notifications, go online several times and do some other little things like checking my heart rate, etc. In any case, this is better than the main competitors like the Apple Watch 5 or Wear OS devices (aka the former Android Wear).