Cheapest Unlimited Data SIM: Best Affordable Plans in the US (2025)
Finding the cheapest unlimited data SIM in the US requires careful consideration of several factors, including network coverage, data speeds, and pricing. While many carriers advertise unlimited data, the fine print often reveals restrictions like deprioritization after a certain usage threshold or slower speeds during peak times. Below, we break down the top affordable unlimited data SIM options available in 2025, helping you choose the best plan for your needs.

Top Cheapest Unlimited Data SIM Plans in the US
Several carriers offer competitive unlimited data plans at budget-friendly prices. Here are the top contenders:
- Mint Mobile : Known for its low-cost plans, Mint Mobile offers unlimited data starting at $30/month. It operates on T-Mobile’s network, providing reliable coverage.
- Visible by Verizon : Visible offers unlimited data, talk, and text for $40/month, with no hidden fees. It uses Verizon’s extensive network.
- T-Mobile Connect : T-Mobile’s prepaid unlimited plan starts at $50/month, with additional perks like international texting.
- AT&T Prepaid : AT&T’s unlimited prepaid plan costs $55/month and includes 5G access where available.
- Boost Mobile : Boost Mobile provides unlimited data for $35/month, running on T-Mobile’s and AT&T’s networks.
Comparison of Cheapest Unlimited Data SIM Plans
To help you compare the top options, here’s a detailed table:
Provider | Price (Monthly) | Network | Hotspot Included | Deprioritization Threshold |
---|---|---|---|---|
Mint Mobile | $30 | T-Mobile | Yes (5GB) | 35GB |
Visible by Verizon | $40 | Verizon | Yes (Unlimited) | None |
T-Mobile Connect | $50 | T-Mobile | No | 50GB |
AT&T Prepaid | $55 | AT&T | Yes (10GB) | 22GB |
Boost Mobile | $35 | T-Mobile/AT&T | Yes (12GB) | 30GB |
Factors to Consider When Choosing a Plan
While price is a significant factor, other considerations include:
- Network Coverage : Ensure the carrier has strong coverage in your area.
- Data Speeds : Some plans throttle speeds after a certain limit.
- Additional Features : Look for perks like hotspot data, international roaming, or streaming benefits.
- Customer Service : Read reviews to gauge the provider’s reliability and support.
Final Thoughts
Choosing the cheapest unlimited data SIM depends on your specific needs and location. Mint Mobile and Boost Mobile are excellent for budget-conscious users, while Visible by Verizon offers premium network access at a slightly higher price. Always check coverage maps and read the fine print before committing to a plan.
For more information, visit the official websites of Mint Mobile , Visible , and T-Mobile .