Which US Mobile network is best for me?

The US Mobile Starter Kit comes with two SIM cards. The white SIM card is meant for GSM LTE, and the black one gets you access to our Warp 5G network.

What are the major differences?

Network Type

Warp 5G + CDMA

GSM LTE

Custom plans

Yes

Yes

Unlimited plans

Lower prices on this network

Lower prices on this network

Network coverage

Best in the US

Great

Data Speeds*

Fastest LTE in the US. Comes with Ludicrous + Warp Speeds (5G), C-Band and mmWave enabled

Comes with Ludicrous + Warp Speeds (5G) enabled

Plans prices

Best prices of any carrier on this network

Best prices of any carrier on this network


SEE PRICES

SEE PRICES

Coverage

There are minor differences in coverage depending on which network you choose to use. Our Warp 5G network has slightly better coverage in some rural areas. However, GSM LTE and Warp 5G are almost equal in larger, more densely populated areas.

You can use our coverage built into the Networks page to check which network has better coverage in your area. In case of any questions, you can also reach out to us via chat, email, or call!

Device compatibility

Due to recent changes to our GSM LTE network, for devices to be now compatible, they must come with "4G" or "LTE" capability and also have VoLTE/HD Voice/Enhanced Calling. The requirements for our Warp 5G network are a bit different, so we also have a handy compatibility checker built into the Networks page. If you need help figuring out whether you can bring over a device or not, please reach out to us, and we can help confirm that for you. Most Apple, Samsung, or other newer devices are compatible with both of our networks.

If your phone isn’t compatible or you need a new one, we have a selection of inexpensive and unlocked devices in our store, which are compatible with both of our networks!

If you want to know whether our service will work on your IoT devices like alarm systems, GPS trackers, smart-watches, or other related equipment, please reach out to us via chat, call or email with any questions you may have, and we'll try our best to answer them for you.

We're around 24/7 and love helping people tailor our services to their needs. 


Network

Warp 5G

GSM LTE

Top-Up

Rolls over to the next plan

30-day validity

Usage Alerts

Yes

Yes

AutoPay

Available

Available

Snooze your plan

Available

Available

Call forwarding

Available

Unavailable

Visual Voicemail

Available on both iOS and Android devices

Available on both iOS and Android devices

Wi-Fi calling

Available

Available

5G

Available

Available

Real-time Dashboard

Yes

Yes


*Speeds can depend on external factors like the device, coverage, and user congestion in the surrounding area.