It's an all-in-one bundle for families of four that really, really happen to like the iPhone XR and want to use it on T-Mobile.
For $10 per month less than a T-Mobile ONE plan, custoemrs won't be getting LTE speeds for what may be considered auxilliary features.
Instead of paying just $60 a month for two unlimited everything service lines, T-Mobile customers aged 55 or older will be charged $70 starting March 15, which is still extremely affordable.
T-Mobile ONE Unlimited 55+ service aims to show respect instead of contempt for the "generation that invented wireless", i.e. Americans age 55 and up.
New customers coming from another carrier will be able to save on up to 12 lines of service with this quiet promo being threaded around.