Looking for a one-month SIM-only option that fits a short-term need or trial period? The following picks offer prepaid flexibility, clear terms, and reliable nationwide coverage. Each option below is designed for a single month of service with specific data allowances, unlimited calls and texts, and compatibility across 4G and 5G networks. Compare features to find the plan that best aligns with your usage, device compatibility, and network preference.
Summary Table of Chosen Products
| Product | Data Allowance | Talk & Text | Network | |
|---|---|---|---|---|
| Prepaid Unlimited Plan: 1 Month • 15GB | 15GB high-speed data | Unlimited data talk & text | 4G, 5G | New activation; upfront payment; no activation fees |
| Prepaid Unlimited Plan: 1 Month • 10GB | 10GB high-speed data | Unlimited data talk & text | 4G, 5G | New activation; upfront payment; plan subject to availability |
| $24/mo Ultra Mobile Prepaid | 8GB high-speed data | Unlimited talk & text | 4G LTE, 5G | No contract; 1-month plan |
| $19/mo Ultra Mobile Prepaid | 4GB high-speed data | Unlimited nationwide talk & text | 4G LTE, 5G | No contract; 1-month plan |
| SpeedTalk Mobile SIM Kit | Plans start at $5/month; data varies by plan | Talk & text options included | 4G/5G | 3-in-1 SIM; eSIM option on select devices |
Prepaid Unlimited Plan: 1 Month • 15GB Data
Infimobile’s 1-month plan provides a full month of service with 15GB of high-speed data, plus unlimited unlimited talk and text. After the high-speed data is exhausted, speeds may be reduced for the remainder of the month. The plan requires a compatible device and upfront payment for activation. No activation fees help keep the initial cost predictable. Activate easily with a 3-in-1 SIM Card kit, and enjoy nationwide coverage on 4G and 5G networks.
Prepaid Unlimited Plan: 1 Month • 10GB Data
This Infimobile option offers 10GB of high-speed data for one month, with unlimited talk and text. Data slows after the cap is reached. Activation requires a compatible device and upfront payment. Availability may vary by region. The kit includes a 3-in-1 SIM Card for easy activation across devices.
$24/mo Ultra Mobile Prepaid Plan
Ultra Mobile’s 24-dollar monthly prepaid plan includes 8GB of high-speed data across the T-Mobile 5G network, with unlimited nationwide talk and text. This no-contract, one-month plan is ideal for temporary projects, travelers, or testing a new provider. Users should be aware data speeds may vary after the high-speed quota is used, and device compatibility should be confirmed with the carrier.
$19/mo Ultra Mobile Prepaid Plan
Ultra Mobile’s 19-dollar plan offers 4GB of high-speed 5G/4G LTE data with unlimited nationwide talk and text. This plan is contract-free and designed for a short-term need or to test the service. Like other short-term options, speeds may slow after data is used, and activation requires parental consent for device compatibility and terms checking.
SpeedTalk Mobile SIM Kit
SpeedTalk Mobile offers a flexible SIM kit with plans starting at $5 per month. The kit includes a 3-in-1 SIM (standard, micro, nano) and provides options to keep your current number with online activation. eSIM is supported on compatible iPhone, Google, and Samsung devices. This option is ideal for experimenting with different data tiers across devices like smartphones, cameras, or IoT devices.
T-Mobile eSIM USA 1 Month
This eSIM option provides 5G/4G LTE data with unlimited calls and texts, and includes a US phone number. It’s ideal for travelers who want a quick, on-device activation without a physical SIM. Suitable for devices that support eSIM, and may require compatible hardware to maximize usage.
US BR Prepaid Data Only SIM Card
Data-only SIM cards from ENC Mobile deliver 1GB of high-speed data for 30 days, suitable for security cameras or mobile hotspots. The card is a 3-in-1 format and does not support voice calls or text messages. Useful for IoT devices and routers that require a dedicated data connection.
Buying Guide
- Data needs: Choose based on monthly data consumption. If you stream, game, or video call often, higher data allowances help prevent throttling.
- Network coverage: Verify nationwide coverage in your area and any regions you frequent. Some plans emphasize 5G speeds, while others rely on 4G.
- Device compatibility: Ensure your device is compatible with the plan’s SIM type (standard, micro, nano) or supports eSIM if you prefer a digital SIM.
- Activation and upfront costs: Some plans require upfront activation fees or payments; others advertise “no activation fees.” Read the terms carefully.
- Flexibility: If you’re testing a new service, consider plans with straightforward cancellation or easy renewal options, and check for automatic renewals only if you want them.
- International use: If you travel, consider plans that offer roaming or global texting options, or keep a separate SIM for travel to avoid roaming charges.
- Support and terms: Look for clear terms about data throttling after the high-speed allotment, and whether speeds drop to 2G/3G or are simply reduced.