It is a wonderful upgrade from my previous Galaxy Watch. Plenty of nice features and the look is great. The Galaxy watch helped me in the past and this Ultra is not disappointing. The battery life is awesome. I pretty much wear it all the time and found it very accurate on sleep monitoring. I'm knocking down 1 star because of the following:
1- Despite the watch is capable to do so, related software in the USA does not allow measuring of blood pressure. This is essential in my opinion and a must have. I was very disappointed to learn this feature is not supported in the USA yet.
2- When the night mode is activated, the watch's face light can't be turned on unless night mode is turned off. This is also something needs to be worked on as the face light is mostly needed at night.
3- The watch does not allow customization of the back button on double clicking. I do understand that this is not possible as the button is dedicated to "back" on single click. But how about the settings allow to have the "back" feature on double click so the button will be free to customize on single click? Samsung can have "back" on default single click unless the user chooses to otherwise customize.
I do recommend this watch. It is stylish, durable, and lovely to wear. I wish the blood pressure feature gets activated on ASAP.
It is a 5 star watch, are there complaints... Sure. It's a bit large, heavy, and the bezel doesn't rotate, and the strap I chose is not comfortable. But... It has relatively great battery life compared with similar smart watches (doesn't match the Garmen battery life) but will last at least a couple days.
Charging speed is OK, wish it was faster.
Performance and functionality is awesome. There have been zero blips in the performance. The screen is bright and very easy to see and read. Speaker is nice and loud for the size.