Universal SIM card
Free shipping in US
Our universal SIM Cards easily break into 3 sizes to fit any device.
It’s easy to transfer your number from another carrier to US Mobile.
Create your own plan by choosing the amount of talk text & data that suits you.
Super simple activation gets you up and running on US Mobile in one easy step.
SIM cards are the secret wizards inside your smartphone making it possible for your device to connect with your carrier’s network. Without them, your device would be limited to just wifi.
SIM cards are transferable and can easily be swapped from device to device (as long as the devices are unlocked). That means you can insert a new SIM card into an old phone or insert an old SIM card into a new phone! Many international travellers buy SIM cards locally to use in their phones.
US Mobile offers prepaid SIM cards to be used on phones and IoT devices. With a prepaid plan you know exactly what you pay and you are not stuck in a contract which means that you can switch carrier at any time.
Another expression for prepaid is Pay as You Go.
“GSM” means Global System for Mobile Communications. The GSM LTE Network tends to have the highest number of compatible devices of all major networks. As a result the GSM SIM card is the most common type of SIM card.
US Mobile provides 3-1 SIM cards, which means that every SIM Card can be broken into three different sizes: mini, micro and nano. The SIM card will therefore fit into any type of device.
Mini SIM: 2011 phones and older: iPhone 3, HTC Thunderbolt, Samsung Galaxy S
Micro SIM: 2012-2013 phones: iPhone4, Samsung Galaxy S3 and S4
Nano SIM: Newer generation phones: iPhone 5 and above, Samsung Galaxy 7
SIM Card activation with US Mobile is simple and quick. Our 1-step activation page will allow you to enter your SIM Card ID, choose your 30-day plan, and click to activate!
To install a SIM card, you will need to find the SIM card slot in your device. Sometimes you will find the slot on the outside of your device. Other times, it will be inside near the battery.
US Mobile SIM cards are compatible with all types of IoT (Internet of Things) connected devices. Some examples include alarms, GPS trackers, cars and smartwatches.
Since talk, text and data usage is different from device to device, US Mobile custom plans are ideally suited for your connected devices.