SIMS4Things IOT SIM Cards

At SIMS4Things we provide a range of prepaid IoT & M2M SIM cards to match the diverse needs of connected devices, from industrial telemetry modules to compact wearables. All our prepaid SIM cards are designed to deliver global coverage, secure connectivity and long operational life.

Why Choose Our IoT SIMs?

Global Roaming

One SIM, 600+ networks in 180+ countries with seamless connectivity.

Scalable Platform

Activate, pause, or manage thousands of SIMs through our portal.

Secure By Design

Private APN, VPN options, and strict network controls for safe IoT data.

Flexible Billing

Pay-as-you-go, pooled data, and custom enterprise plans for any scale.

Removable SIM Cards (2FF, 3FF, 4FF)

Mini-SIM (2FF): measures approximately 25 mm × 15 mm. This format remains popular for legacy devices, larger industrial systems, vehicles, routers and other hardware with a traditional SIM slot.

Micro-SIM (3FF): about 15 mm × 12 mm. A compact choice for many mid-size devices and IoT installations where a smaller footprint helps reduce space and power constraints.

Nano-SIM (4FF): roughly 12.3 mm × 8.8 mm. This is the slimmest physical SIM card format widely used today. Ideal for modern IoT hardware, sensors, compact gateways or mobile devices where minimal size matters.

Each of these formats delivers the same core SIM functionality (identity, security, network authentication) regardless of size. Choosing between them depends on what kind of hardware you deploy, whether you need a robust card for industrial use or a small form factor for slim devices.

Embedded SIM (eSIM / MFF2)

For advanced IoT installations where space, durability, or remote management are critical, we offer embedded SIM cards (eSIM / MFF2) instead of traditional removable SIMs. These are soldered directly onto the device circuit board, eliminating the need for a physical SIM slot.

Benefits include:

• Reduced device complexity (no tray or slot required)
• Increased reliability and resistance to vibration or tampering
• Ability to remotely provision operator profiles and switch carriers without physical access

This makes embedded SIMs ideal for large-scale deployments, remote sensors, industrial automation, tracking units or any application where maintenance access is limited or impractical.

Built for IoT / M2M: Reliable, Durable, Long Life

All standard SIMS4Things removable SIMs are rated to operate under a wide temperature range (e.g. –25 °C to +85 °C) to suit most commercial and industrial IoT conditions, from vehicles and remote sensors to telemetry and logistics devices.

Our SIM cards are built for long life, low maintenance and dependable connectivity. They’re intended for data-centric applications and M2M communication rather than voice, making them ideal for IoT deployments worldwide.