Bhai see, That's a fitness band, So if you are concerned about fitness and want something to keep you updated with your fitness data that's a great option. The second thing is it's Samsung product so it will work better with a Samsung smartphone as you already have J7 pro. (If you just need a Band this one is better than Mi, Honor and other chinese stuff for sure).
Now if the above things doesn't matter for you and you need something stylish than there are a lot of other options like Boat, Noise. In 4k you can buy Smartwatch from those companies but they won't be that accurate and won't have that much fitness related features compared to Fit2. choice is yours.
If this solved/helped with your query "Accept as solution" will be appreciated.
