I have bought Xperia Z2 and I need some help

[Goke]

Hello, I have bought Xperia Z2 and I want to ask some questions. It already has Android 5.1.

It came with a white wristband that has some interesting features. It can count my steps and vibrates when I have a phone call. However, I am not using it. There is an app called Lifelog, but I do not want to use it because it requires an account and it is a useless stupid idea.

I think I want to put root into the phone or install a custom rom. The root is good because I can use Xprivacy in order to disable permissions of audacious apps. Furthermore, the phone came with lots of bloatware installed. I disabled some useless apps, but I cannot disable What is new, which has ads. I do not know how to choose a good custom rom.

I had problems with custom roms in other devices. I did not succeed in restoring the original rom. Some of the bloatware improves the device. I tested a clean Android version and it lacks many things. The image quality in other camera apps is terrible. The UI in Samsung and Sony devices is much better. I need some Google apps, such as Gmail and Hangouts. I do not like useless apps, because they use memory, network and battery. However, I do not want to be unable to use good features that came with the device.

Thank you.

 

[PapaGary]

Is there a question in there somewhere?

 

[Goke]

There are implicit questions if you have anything to comment.

The first question is about the wristband. Does anyone use it? Do you like it?
The second question is about root or custom rom. I need help to decide if I will use root or install a custom rom or do nothing. The reasons were informed above.