Comcast Cable Communications, LLC, doing business as Xfinity, is an American telecommunications company and division of Comcast Corporation used to market consumer cable television, internet, telephone, and wireless services provided by the company

Once you are in your rented apartment and Xfinity cable exists:

1. You can call Xfinity to activate it with your name
2. Provide proof of identity and address
3. Select a plan
4. Setup auto-billing

I have a 50$ plan which offers:

Xfinity internet

Xfinity flex

Also as of now Xfinity flex box is free with your internet plan and comes with pre-installed apps and free services. Make use of it

Xfinity rewards

You will also get a chance to enter sweepstakes and get movie purchase offers and more in Xfinity rewards.