Answer: If you need reliable data-only SIMs for security cameras, IoT devices, or travel hotspots, choose a data-only SIM with broad network support, easy activation, and flexible plans. This guide highlights five top options and explains who each is best for, plus practical buying tips. The featured products cater to security devices, hunting cameras, travel hubs, and unlocked devices across AT&T, T-Mobile, and Verizon networks.
The following quick reference helps compare key choices at a glance. A buyer-friendly table below summarizes each product’s focus, duration, and data scope.
| Product | |||
|---|---|---|---|
| EIOTCLUB SIM Card for Data Only | Security cameras and IoT projects | 300MB / 30 days, data only | AT&T and T-Mobile USA networks |
| EIOTCLUB Data SIM Card 360 Days | Long-term security cameras | 24GB or 360 days | Nationwide networks |
| TALKSIM Data SIM Card 15GB | Multi-carrier reliability (AT&T, Verizon, T-Mobile) | 15GB / 180 days | USA nationwide |
| KiwiSIM Prepaid Data SIM Card USA | Quarterly connectivity for devices | 10GB / 90 days | Unlocked hardware across major networks |
| RelaxedSIM 24GB 360-Day Data | Hunting/trail cameras and IoT | 24GB / 360 days | AT&T, T-Mobile, Verizon |
EIOTCLUB SIM Card for Data Only

This data-only SIM is designed for devices that need reliable 4G/5G data without voice or text services. It works across nationwide towers on AT&T and T-Mobile networks in the USA. It requires no activation and is meant for use in devices like security cameras and trail cams. Best for: users who want a simple, contract-free data line for a single device or a limited fleet. Caution: no phone number or SMS means you cannot use it for voice calls or traditional texting.
EIOTCLUB Data SIM Card 360 Days for Unlocked Security Cameras

Designed for long-term security or wildlife surveillance, this SIM provides a broad data allotment for up to 360 days or 24GB, whichever comes first. It operates within the USA using AT&T or T-Mobile towers, with no voice, no SMS, and no activation fees. Best for: hunters and security setups that require a year-long data plan with consistent coverage. Caution: data cap can be reached quickly for high-bandwidth security feeds.
TALKSIM Data SIM Card 15GB 180Days

This multi-carrier SIM (AT&T, Verizon, T-Mobile) auto-selects the strongest network in the USA, delivering 4G LTE data for 180 days or 15GB, whichever comes first. Data only, no voice or text. Best for: travelers or field technicians who need dependable nationwide data across multiple networks. Caution: may require APN setup and roaming enablement for initial use.
Prepaid Data SIM Card USA – 10GB 90-Day

This KiwiSIM option offers 10GB of high-speed data for 90 days, with a 3-in-1 SIM compatible with unlocked devices. It targets devices like tablets, hotspots, and IoT gear. Best for: seasonal work or travel across the USA where you need reliable data without long-term commitments. Caution: after the 10GB is used, speed and data availability depend on the plan terms until the 90-day window ends.
EIOTCLUB Data Only SIM Card for Unlocked Router

Ideal for routers and fixed installations, this data-only SIM offers 5G/4G LTE access with easy setup in unlocked devices. No activation required and no contracts. Best for: home or small business setups needing plug-and-play data without voice or SMS. Caution: device compatibility depends on APN configuration and roaming settings.
Puffin Smart 4G 5G LTE Data Only SIM Card

Supports 5G/4G LTE across AT&T and T-Mobile networks, with coverage extending into the US, Canada, and Mexico. It suits security cameras, trail cameras, tablets, hotspots, dashcams, and other unlocked IoT devices. Includes a lifetime warranty on SIMs. Best for: versatile field devices requiring broad regional coverage. Caution: verify device compatibility with 5G or 4G speeds in your location.
Unlimited Data SIM Card 5GB 30Days

This TALKSIM option offers 5GB of high-speed data for 30 days, then unlimited data at a reduced speed (128 kbps) after the cap. Data only, no voice or text. Best for: users who need a short-term, unlimited-feel data boost without ongoing fees. Caution: reduced speed after the high-speed cap may affect video streaming or large downloads.
RelaxedSIM Data Card No Activation

Offers 24GB of data over 360 days with true plug-and-play setup and automatic network switching among AT&T, T-Mobile, and Verizon for best available signal. It includes a 100MB free trial to test device compatibility. Best for: long-term IoT deployments and hunting cameras that need robust, flexible coverage. Caution: data cap and speed after trial may vary by plan terms.
Buying Guide: Key Considerations for Data-Only SIM Cards
- Network compatibility: Confirm which carriers the SIM supports and whether it auto-switches among AT&T, T-Mobile, and Verizon for best coverage in your area.
- Data plan duration: Evaluate whether you need a short-term boost (30 days) or a long-term option (180–360 days) based on device usage and location.
- Data limits vs. speed: Understand throttling rules after high-speed allotments and whether the device can operate at lower speeds for extended periods.
- Device compatibility: Check SIM size (standard, micro, nano or triple-cut) and ensure your unlocked device supports APN configuration for data roaming.
- Activation requirements: Some options are activation-free; others require email validation or online top-ups. Plan accordingly for maintenance and recharges.
- Use-case fit: Choose based on device type—security cameras, hunting cameras, routers, or hotspots—to maximize reliability and cost-efficiency.
- Privacy and security: Data-only plans prevent voice and SMS but may still offer secure data channels; consider device security features where applicable.
Frequently Asked Questions
- What is a data-only SIM card used for?
A data-only SIM provides internet access without voice or SMS services, ideal for cameras, hotspots, routers, and IoT devices. - Can I reuse a data SIM in multiple devices?
Many data-only SIMs are transferable to unlocked devices; check the card’s compatibility and APN settings for each device. - Do these SIMs require activation?
Some options are activation-free; others require online setup or email verification to select a plan. - What networks do these SIMs commonly support?
Most use nationwide networks across AT&T, T-Mobile, and Verizon, with automatic carrier selection where applicable. - How do I know which SIM fits my device?
Look for a universal 3-in-1 SIM (standard/micro/nano) or verify the device’s SIM size and unlock status before purchasing. - Are these suitable for travel across the USA?
Yes, many plans are designed for nationwide coverage and can support travel between states without changing SIMs.