T-Mobile today announced the REVVL 7 series of T-Mobile-branded phones exclusively for T-Mobile and Metro by T-Mobile. T-Mobile also announced some slightly unusual perks exclusive to the REVVL series on Metro. First is no activation fees when activating a REVVL 7 5G or REVVL 7 Pro 5G (other brands incur a $25 activation fee). Metro is also introducing a lifetime limited warranty that covers "mechanical or electrical" issues for as long as you have the phone and maintain an account in good standing.