Ultra Mobile’s prepaid SIM kit includes a one-month 4GB plan on T-Mobile’s 5G network with US talk, global text and unlimited calls to 90+ international destinations. Ideal for calling family abroad; requires an unlocked compatible phone, and data is modest. No annual contract.
Description
The Ultra Mobile prepaid SIM kit includes a one-month 4GB plan on the T-Mobile 5G network, plus unlimited calls to 90+ international destinations. It is designed for people in the US who regularly call family abroad.
Getting to know the Ultra Mobile SIM kit
Ultra Mobile lists US talk, global text and unlimited international calling to more than 90 destinations, running on T-Mobile’s network. Plans and destination lists can change, so check Ultra Mobile’s site for current details.
One thing to watch: small data allowance
Check your phone is unlocked, confirm coverage at your address, and review the current destination list.
Putting the Ultra Mobile SIM kit to work
Use it as a primary line for light data users, a second line for international calls, a phone for visiting relatives in the US, or a backup SIM for travel within the US.
Your phone must be unlocked and compatible with T-Mobile bands, including eSIM or physical SIM support. 4GB of data is modest, so rely on Wi-Fi for video. Coverage depends on T-Mobile in your area. Because it is prepaid, there is no credit check, and you can stop renewing at any time if your needs change. It is worth comparing the current monthly price with your existing plan before switching numbers.
Our take on the Ultra Mobile SIM kit’s highs and lows
What the Ultra Mobile SIM kit gets right
- International calling included
- T-Mobile network
- No contract
Main catch: small data allowance
- Small data allowance
- Coverage dependent
The ideal Ultra Mobile SIM kit owner
People calling family abroad will like the Ultra Mobile SIM kit
- People calling family abroad
- Light data users
- Visitors in the US
Heavy data users should pass
- Heavy data users
- Areas with weak T-Mobile coverage
If the Ultra Mobile SIM kit isn’t quite right
Mint Mobile offers low-cost T-Mobile plans, and Google Fi suits international travellers.
Is the Ultra Mobile SIM kit worth it?
Excellent value for international callers with light data needs.
