The prices from T-Mobile’s announcement assume you’re using automatic payments, which come with a $5 discount per line that’s separate from the company’s $5 fee for in-store payments. The plan is positioned as an alternative to the three-year lock-ins offered by other carriers, which often come with a “free” phone, of course, normally manifested as a monthly credit on your account. The freedom of annual upgrades is nice but feels less relevant now than ever, in a time when smartphones are changing less from year to year and tend to last far longer, even if their batteries maybe don’t