A week almost with the watch and former owner of Xiaomi Mi Band 7.
I will mainly mention its negatives, so if the watch is so important to you, it is not for you.

1) The battery lasts almost 1.5 days, at most 2 days.
2) The sleep measurements are somewhat... strange. It says I am awake for 40 minutes during my sleep and it counts until the time I set, for example, from 1:30 at night to 9:30 in the morning. If I sleep longer, it doesn't count. (Maybe it's because I set a sleep program, I removed it now to see)
3) If you want a proper Watch Face, that is, a relatively detailed home screen with steps, kilometers, weather, heart rate, and more, then you have to pay about €10 for a certain application (I recommend Watch Faces since I bought it and I am satisfied). All this because the range of Faces from Apple is very simple with only the time and a couple of things.
4) The watch does the basics for sleep, training, etc., but if you want more in terms of measurements and related features, you equally have to purchase some application.
5) The watch does not measure body temperature.
6) It does not measure blood oxygen and stress.
7) It does not receive or send audio messages.
8) The microphone for calls needs to be at the level of your chest or face for others to hear you well. If your hand is down, you won't be heard clearly (ideal only for driving)

Over the past 5 years, I have owned the following smartwatches:

- Galaxy Watch
- Amazfit GTR 2
- Huawei Watch GT2 Pro
- Huawei Watch GT3 Active
- Huawei Watch Fit
- Withings Horizon

While they may not be the best quality watches, they are so lightweight that you hardly feel like you're wearing them. If you're into sports, they are ideal. If you're a watch enthusiast looking for an accessory, you may think they look fake.

Their measurements are not precise, but they are decent. I turn off Wi-Fi, sleep tracking, and other similar settings to make the battery last for two days.

They have many smart features and are essentially a mini iPhone on your wrist.

Ultimately, like the Withings Horizon, if you have money to burn and need a justification for why you want it, or if you want a wrist-mounted mobile device for sports but don't mind charging it constantly, go for Huawei or Amazfit. My overall experience reminds me of the Galaxy Watch, which does everything a mobile device does but doesn't have the same plethora of apps. It's mainly aimed at Apple users.

The good thing is that because it's Apple, there is a wide variety of accessories available to make it look like a different device. I got the Spigen Rugged Armor Pro case for protection and turned it into a Casio G-Shock.

Well, it's time to write the review. Purchase date: 02/15/2023

Positives:
1) It constantly notifies me with emails, messages such as Viber, WhatsApp, iMessage, etc. It has covered me due to my work.
2) If you have Bluetooth on, it has the ability if you don't have your phone near you and someone calls you, you can answer the call, of course the same with SMS.
3) Due to NFC, it has the ability to use your cards wherever you are, for example, supermarkets, etc.
4) Your iPhone gets some rest and you save battery percentage time, in other words, notifications are directed to the iWatch.
5) It has the ability to create as many alarms as you want, it has good vibration and waits for you to wake up to press the button either Snooze for another 10 minutes or Dismiss when you get up from your bed.

Negatives:
1) Of course, the initial negative is the battery, I charge it every night before I go to sleep, it needs at least an hour of charging. Okay, it's not a problem for me, maybe for others. Who knows...
2) It doesn't have a keyboard to send messages.
3) It needs full attention not to break and tremble your soul...

I will rewrite it again.

I have been using the watch for about two weeks. Initially, it has the best display I have ever seen on a smartwatch. It has the most accurate colors, the most accurate brightness, and the most accurate automatically adjustable brightness depending on the lighting conditions. As soon as you wear it, you can feel the high quality of the materials used in both the device and the included strap. I like the clasp on the strap and trust it more than the GT2's, but that's a minor detail. I will also say that they have done an excellent job with vibration and notification sounds. The vibration (or "haptic" as Apple calls it) is extremely satisfying, it does not resemble the classic vibration of other watches at all, it is more like small pulses accompanied by subtle sounds, which are very well designed for each function. Another feature that I like is the appearance of the applications in terms of style and transition effects, as well as the digital crown, which is very helpful. However, I am disappointed with the battery life, activity tracking, and sleep tracking. Let's start with the battery. It needs to be charged every one and a half days with light usage, and every day with heavy usage. I don't know where the rest of the market stands (meaning if the GT2 phenomenon is the norm or the exception with such long battery life), but I find it very inconvenient to have to charge it every night. It's not a hassle, but for a watch in 2022, and with such competition, the battery is unacceptable to me. As for activity and sleep tracking, the problem is not the tracking itself. The sensors work perfectly, with great accuracy and without any issues. But in order for them to work, you need to set goals (either from the watch or from the mobile app). That means even for sleep, if you don't set a "sleep program" (which works flawlessly, it's actually like a do not disturb mode), the sleep tracking simply doesn't work. You have to set a goal yourself, even if you don't meet it, the measurements are real and very accurate. You just need to have a sleep program set to get those measurements. The same goes for daily step tracking, calories, etc. If you haven't set a goal, it simply doesn't count. But when it does count, it does so with very high accuracy. Now let's move on to something else. The speaker. It's the worst I've ever heard on a smartwatch, which is unacceptable for a device that costs €359. The microphone is fine, you sound very clear to the person you're talking to. But the device's speaker is a huge drawback and a big disappointment. As for other features, I have found the ability to reply to messages and emails by simply speaking to the watch very useful. It converts speech to text accurately. The "lift to wake" motion is the most accurate I have ever encountered, with a fast recognition speed of the motion. It also has some "assistive touch" gestures, which I don't use, but they are very useful for one-handed use of the watch, the one you're wearing. Again, the sensors it has are highly sensitive and accurate. As for the appearance, we have the following paradox. While the GT2 resembles more of a watch (it is round with a metal case), the Apple Watch has more prestige due to the brand (Apple), even though it is clearly a smartwatch with its square design approach. Of course, it's all a matter of personal preference. As for waterproofing, I haven't tested it in water or in the shower yet, but it has gotten wet from hand washing and nothing has happened to it. However, I must mention two very important features it has (which are the reasons why I bought the watch): fall-collision detection and heart episode detection. The first one interests me because my job requires the use of a motorcycle or (and) a car on a daily basis and for many hours. If something happens to me, the watch will automatically send an SOS signal with my location on the map, as well as notify the contacts I have chosen as emergency contacts. The second one interests me because I often have heart arrhythmias, and it's good to monitor my condition. Of course, this is the SE version and it doesn't have an electrocardiogram, but I don't mind. Of course, I should add the following important point: the watch only works when connected to an iPhone. If you don't have an iPhone, it's simply useless. In contrast, the GT2 has an application for both Android and iOS.