Finding a prepaid SIM card that provides unlimited text can simplify staying connected while traveling or staying within the United States. This guide reviews five popular options, highlighting 30-day or monthly plans, data allowances, and usage caveats. The selections focus on those offering unlimited texting, with varying data speeds and coverage. Use the buying guide to compare to your device and travel needs.
| Product | Data & Text | Activation | Key Limitation |
|---|---|---|---|
| T-Mobile Prepaid SIM Card Unlimited Talk, Text, and Data (30 Days) | Unlimited high-speed 4G LTE data; unlimited talk & text | Activation may take up to 24 hours | Hotspot at 3G; may slow after 50GB |
| Infimobile Prepaid Unlimited Plan – 1 Month | 15GB high-speed data; unlimited talk & text | New activation; upfront payment required | Speed reduced after high-speed data is exhausted |
| T-Mobile Prepaid SIM Card (30 Days) – USA + Canada/Mexico | Unlimited data with talk & text; calls/text usable in USA, Canada, Mexico | Activation details provided with kit | 3G hotspot speed; data policy may vary by region |
| Lyca Mobile USA 5G/4G Prepaid SIM Card Kit | Unlimited nationwide talk, text & data | 3-in-1 SIM included; service plans sold separately | Plans vary by price; bring-your-own-device recommended |
| Tello Mobile – $14/Month | 5 GB data; unlimited minutes & texts | 3-in-1 SIM card kit; activation required | Data cap remains after high-speed data; network dependent |
T-Mobile Prepaid SIM Card Unlimited Talk, Text, and Data (30 Days)
This SIM card provides unlimited talk and text within the USA and includes unlimited high-speed 4G LTE data. It also supports unlimited hotspot/tethering at 3G speeds, appealing for light laptop or tablet use on the move. A Fair Usage Policy may throttle data after 50GB of usage. Activation guidance indicates the SIM is not activated yet and may take up to 24 hours; users are advised to schedule activation in advance. The card works only in unlocked GSM phones and cannot be used in modems or with non-US numbers; it is restricted to the USA and does not support portability of the current mobile number to another carrier. Ideal for travelers or temporary domestic use with a GSM phone.
Infimobile Prepaid Unlimited Plan — 1 Month
This prepaid plan offers 15GB of high-speed data each month along with unlimited data, talk, and text. Activation requires a new setup and upfront payment, and availability may vary by location. A notable benefit is transparent pricing with no activation fees, plus a straightforward 3-in-1 SIM card kit for easy setup. After the high-speed data is depleted, data speeds are reduced, which is typical for many prepaid plans. Suitable for users who need consistent connectivity and a simple billing structure without hidden fees.
T-Mobile Prepaid SIM Card Unlimited Talk, Text, and Data (USA + Canada/Mexico)
This T-Mobile option offers true unlimited high-speed data at 4G/LTE within the USA, with unlimited calls and international texting. It also supports personal hotspot at 3G speeds, and data, calls, and texting can be used in the USA, Canada, and Mexico. This can be a strong choice for users who travel across North America and want a single SIM with broad regional access. The package notes the need to activate and may include region-specific usage considerations. It is best for users who primarily operate within North America and favor a single carrier for convenience.
Lyca Mobile USA 5G/4G Prepaid SIM Card Kit
Lyca Mobile’s US kit offers unlimited nationwide talk, text, and data with a flexible range of plans starting at affordable monthly rates. The kit includes a 3-in-1 SIM (standard, micro, nano), and it supports bringing your own device on compatible GSM networks. Plans are sold separately, so customers can choose a plan that matches their data needs. Lyca Mobile is a practical option for budget-conscious users who require nationwide coverage and the convenience of a 3-in-1 SIM card kit.
Tello Mobile Prepaid — $14/Month
The Tello plan offers 5 GB of data with unlimited minutes and texts for a low monthly price. The plan is available with a 3-in-1 SIM card kit for easy device compatibility, and activation requires bringing or setting up a phone with Tello. This option is suitable for users who want predictable costs, bring-your-own-device flexibility, and a minimal data allowance but unlimited texting and calling within the United States.
GMS NET – 30 Day USA SIM Card
This SIM card advertises unlimited 5G data with a 3G hotspot option and a US phone number with unlimited calls and texts. It is designed for US-based usage on 5G networks, making it convenient for smartphone users who need consistent connectivity and a dedicated US number. Consider device compatibility and coverage in your area when choosing this plan, especially for regions with variable 5G availability.
Ultra Mobile — $19/Month Plan
The Ultra Mobile option includes no contract and offers 4GB of high-speed data on the T-Mobile 5G network, along with unlimited nationwide talk and global texting. This plan targets users who want a reliable 5G/4G LTE experience with clear monthly limits and flexibility. Data beyond the high-speed allotment will slow, but the package supports a straightforward, no-commitment approach to prepaid service. It works well for light power users who value simplicity and nationwide coverage.
Ultra Mobile — $24/Month Plan
This plan expands data to 8GB per month while maintaining unlimited talk and text on the T-Mobile network. It is marketed as a 1-month prepaid option with a 3-in-1 SIM kit, allowing users to choose more data without changing carriers. Ideal for users who need higher data allowances for streaming, browsing, or light hotspot usage while preserving easy activation and a flexible monthly cycle.
Buying Guide: Key Purchase Considerations
- Coverage and device compatibility: Check whether the plan covers your typical travel areas and if the SIM works with your unlocked GSM phone. Some SIMs don’t support modem or tablet use.
- Data allowances and speed: Compare high-speed data allotments and what happens after reaching the cap. Some plans throttle to 3G speeds for hotspot or after depleting high-speed data.
- Hotspot/tethering policy: If you plan to use a laptop or tablet, confirm hotspot speed and limitations. Some plans restrict or throttle hotspot usage.
- Activation timing: Some cards require activation windows or advance scheduling. Consider whether you need immediate service or can wait a day or two.
- Billing and fees: Look for up-front costs, activation fees (if any), and whether the plan has fixed monthly pricing with no hidden charges.
- US-only vs. North America coverage: If travel includes Canada or Mexico, note which plans include cross-border usage and at what speeds.
- Device purchase options: Some sellers sell only SIM cards; others include 3-in-1 SIM kits or bring-your-own-device options. Verify what you receive and what your device requires.
- Customer support and service terms: Review activation instructions, policy on number portability, and clarity of terms to avoid unexpected throttling or service changes.
When choosing a prepaid SIM with unlimited text, balance data needs, portability, and regional coverage to ensure reliable connectivity for your devices. The options above provide a spectrum from premium unlimited data to budget-friendly bundles, each with its own activation flow and usage caveats. Always confirm current terms on the product page before purchasing, as plans and policies can change.