T-Mobile OneThe base unlimited plan (which is actually quite limited) starts at $70 per month for the first line. The price drops to $50 per month for the second line and $20 per month (with autopay turned on) for each additional line, for up to eight lines. It offers unlimited text, talk and data -- but here are the limitations:
T-Mobile One HD Day PassIf you have the base unlimited plan and you would like to view video -- like Netflix, YouTube and so on -- in 1080p HD instead of 480p, you can purchase a 24-hour HD Day Pass for $3. Or sign up for T-Mobile One Plus.
T-Mobile One PlusBecause T-Mobile's base unlimited plan is not actually unlimited, you can purchase the T-Mobile One Plus unlimited plan (which is...more unlimited, I guess) for an additional $25 per month per line. The total for the base line would then be $95 per month.
The T-Mobile One Plus plan gives you unlimited HD Day Passes, unlimited 4G LTE tethering speeds and faster speeds abroad ("twice the speed," or up to 3G where available). The HD Day Passes are cumbersome, though: They last 24 hours and must be reactivated each time you want to use them.
When you consider that Verizon who does not even officially offer an Unlimited Plan can do all of the above for about the same $, it makes sense to compare. After all, If you have 26GB of 4G LTE HD, both are likely going to throttle your speeds above that anyway. I'd give Verizon an 'A' for disclosure and T-Mobile a "D" for acting more like a carrier than the "Uncarrier" the way they are presenting their One Plan. The only ones who will be happy with this plan are the shareholders.
Joel Saltzman has over twenty years of wireless industry experience. He is currently CEO and Chief Wireless Analyst for Dr Wireless.