It all depends on you needs. If you need a strict control over your expenses, and a strict control over the budget that cannot be overdrawn, then a prepaid SIM is definitely worth an investment.
a prepaid Sim card is a Sim card that you pay as you go AT&t tracfone and t-mobile
No, they are not. When you guys a prepaid phone card, you are essentially just buying minutes. A prepaid SIM card, on the other hand, is a portable memory chip used to hold your phone's personal information including account holder, phone number, addresses book, text messages and other data. SIM cards are easily removable and can be used from one phone to the next.
No.
activate my idea prepaid sim card
If the prepaid SIM is also from T-Mobile, then yes.
Yes you can. . . .for example you can put a at&t prepaid go phone SIM into an at&t contract phone and it will still be prepaid.
No
You can purchase a Japan prepaid SIM card for your upcoming trip at major airports, electronic stores, or online retailers.
No you can't sorry
You can purchase a GSM prepaid SIM card for your phone at most convenience stores, electronic stores, or directly from mobile service providers.
You can purchase a prepaid GSM SIM card for your phone at most convenience stores, electronics stores, or directly from mobile service providers.
You can purchase a prepaid SIM card at most convenience stores, electronic stores, or mobile phone shops near your location.