The global IoT SIM card you actually control

Choosing the right IoT SIM is less about the physical card and more about the connectivity platform behind it. The right provider should support your devices reliably today while giving you the flexibility to scale, secure, and manage deployments over time.

Key considerations include:

• Network reliability: Global coverage is important, but consistent performance matters more. Look for providers with resilient core infrastructure and intelligent management platforms to minimize outages and connectivity issues.
• Control and visibility: Real-time insights, diagnostics, and remote SIM management make it significantly easier to troubleshoot devices and reduce operational costs at scale.
• Scalability: Ensure the provider can support deployments across multiple countries and network technologies without requiring SIM swaps or complex migrations as you grow.
• Commercial flexibility: Transparent pricing, predictable data costs, and the freedom to avoid long-term lock-ins can prevent expensive surprises later in your deployment lifecycle.

Ultimately, the best IoT SIM provider is one that aligns with your technical architecture, security requirements, and long-term business strategy, not just your immediate coverage needs.

We run our own mobile core and integrate directly with 680+ networks, so the SIM is non-steered, picking the strongest network rather than a preferred partner, you see every session in the platform, and you own the SIM keys. A reseller can’t offer that, because it doesn’t run the network underneath.

Non-steered SIMs lack predefined network preferences, allowing devices to connect to the strongest available signal, enhancing reliability and reducing downtime. A steered SIM is told to prefer certain networks even when a stronger one is available. Ours ships with no preset operator list, so the modem attaches to the best network in each location. You can still shape that with Network Lists when you want to.

2G, 3G, 4G, LTE-M, and NB-IoT, plus 5G NSA, on one profile. The SIM comes in 2FF, 3FF, 4FF, and solderable MFF2, and as eSIM or SoftSIM for embedded designs.

Onomondo is ISO 27001:2022 and 9001 certified, and adheres to GDPR and NIS2 standards, ensuring personal data is handled with transparency and care, regardless of deployment location.

Pay as you go: you pay for the data each SIM uses, plus a SIM fee and the platform cost, with no data pooling to forecast. Magic Mode pauses billing on inactive SIMs. Current rates are on the pricing page.

Yes. You own every SIM and its keys, with no lock-in or exit penalty, and you can switch them over the air to any GSMA-certified operator. We’d want that freedom from anyone we paid, so we build it in.

Yes, with IMEI Lock, you can bind a SIM to a particular device, preventing unauthorized use if the SIM is removed.