Top Unlimited Data SIM-Only Plans in 2024

As smartphones continue to advance rapidly, telecom providers are expanding their plans to meet the growing demand for high data usage. The market offers numerous SIM-only plans with unlimited data, perfect for heavy smartphone users. Back in 2017, four major carriers competed with their best unlimited plans, catering to users who want extensive or unlimited data options. While many users are satisfied with sizable data packages, unlimited plans allow for uninterrupted streaming, browsing, and app use on the latest devices.

Speed Throttling

Most unlimited data plans from leading providers include a speed cap after a certain data threshold. These limits are designed to manage network traffic. The data caps for major carriers typically are:

AT&T reduces speeds after 22GB of data usage

Verizon also enforces speed caps after 22GB

Sprint limits data speeds post 23GB

T-Mobile provides the most generous allowance, throttling only after 50GB

Pricing

The goal of SIM-only unlimited plans is to offer maximum data at affordable rates. Sprint’s Unlimited Freedom plan costs about $60/month, while T-Mobile One costs around $70/month, with an additional $10 for the Plus version. AT&T's Unlimited Choice Enhanced and Unlimited Plus Enhanced are priced at roughly $45 and $60/month, respectively, with a $30 device access fee. None of these plans include extra taxes or surcharges, and they all offer discounts for auto-pay—$5 for Sprint, T-Mobile, and Verizon, and $10 for AT&T. Streaming quality is generally capped at standard definition, with hotspot support limited to 3G. For example, AT&T limits streaming to 1.5 Mbps. Additionally, these providers offer attractive multi-line discounts, making them a popular choice for families or groups.

Choosing the right SIM-only unlimited plan depends on individual needs, including device costs, taxes, fees, and perks. By understanding each provider’s offerings, consumers can select a plan tailored to their data usage and budget.