Top Unlimited Data Plans with SIM-Only Options
Discover the top SIM-only unlimited data plans from providers like T-Mobile and AT&T. These flexible options offer various data, calling, and messaging packages with competitive prices, perfect for users who already own a mobile device. Explore available plans online or at stores to find the best fit for your needs and budget.

Explore the Best Unlimited Data SIM-Only Plans
Many providers offer deals where you can purchase a new device bundled with a plan, often at attractive rates that include talk time, messaging, and data. However, for those who already own a smartphone, SIM-only plans are a cost-effective alternative. These plans provide a set amount of minutes, texts, and mobile data for a monthly fee comparable to traditional contracts. You can find such SIM-only deals both online and in-store, tailored to fit different usage needs and budgets.
Below are some popular options available online. T-Mobile offers some of the most competitive deals, including:
$30/month: 100 call minutes, unlimited texts, and 5GB data (speed reduction after 5GB)
$40/month: unlimited calls, texts, and 3GB data (speed reduction after 3GB)
$50/month: unlimited calls, texts, and unlimited data, but speeds decrease after 5GB
$5/day: unlimited calls and texts with 500MB daily data
AT&T has simplified plans ideal for budget-conscious users, such as:
$30/month: unlimited calls and texts, no data included (additional data can be purchased)
$45/month: unlimited calls, texts, and 4GB data (not unlimited)
$60/month: unlimited calls, texts, and 8GB data, with roaming in Canada and Mexico included
You can visit these providers' websites or stores to explore and choose the plan that best fits your needs. Comparing options through customer service or online tools can help you select the most suitable plan for your usage and budget.