Multi-network M2M and IoT SIM cards for UK and beyond

Enhance the performance of your IoT devices with cost-effective and future-proof IoT SIM cards for UK. Enjoy seamless multi-network connectivity from EE, O2 UK and Three UK on 2G, LTE, NB-IOT and LTE-M

Next-generations IoT SIMs for UK

Superior Coverage
Customize your coverage list to connect to the best or most affordable networks. Get the best coverage from cities like London to the most remote areas.
Improved performance
Onomondo SIMs’ data-saving features minimize both data and power consumption, leading to cost savings and improved performance.
Flexible Solution
Develop, deploy, and operate your IoT devices with absolute flexibility. You’ll only be charged for the devices actively transmitting data.
Expand your business
Start in UK, expand globally

Onomondo makes it super easy to expand your business into new markets. Take your SIMs abroad and automatically connect to local operators with a single network without roaming fees.

IoT cellular connectivity in UK

In the UK, IoT cellular connectivity is advancing. While 2G and 3G networks are declining, 4G expansion is strong. The incorporation of LTE-M technology enriches energy-efficient options for diverse applications, highlighting the UK’s dedication to fostering modern and adaptable IoT connectivity solutions.

The best IoT SIM cards for UK

Onomondo M2M and IoT SIM cards are available for UK in all standard form factors: Mini SIM (FF2), Micro SIM (FF3), Nano SIM (FF4), eSIM (MFF2) and SoftSIM (100% software based SIM).

Start testing Onomondo for free

Ready to experience next-generation IoT connectivity? Create an account, explore the platform, and start testing Onomondo’s IoT SIM cards for free.

IoT businesses building on Onomondo infrastructure

“Onomondo’s efficient platform and global network technology help us stay ahead in the ever-changing connectivity space.”
Klaus Bruun Egeberg
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“Onomondo makes it very easy to consider opportunities in new countries. With their global IoT solution, we know that connecting to new networks is simple — it just works.”
Mads Gregersen
Mads F. Gregersen

Founder

Read the case story
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“Onomondo’s network transparency is unrivalled. It took three days to resolve network issues with our previous provider. It only takes 10 minutes on average with Onomondo.”
Chris Guest
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Deploying IoT devices in Africa?

Connect your devices to a global cellular network solution with the best IoT SIM cards for Africa and South Africa. Enjoy easy roaming access to multiple networks per country with seamless border crossing.

Start testing Onomondo for free

Ready to experience next-generation IoT connectivity? Create an account, explore the platform, and start testing Onomondo’s IoT SIM cards for free.

Why Onomondo?

Optimize coverage

Access 2G, 3G, 4G, LTE-M and
NB-IoT networks across the world.

IoT platform and API

A powerful platform with streamlined SIM management deep insights.

No-code connectors

Reduce data consumption, save power and money with connectors.

Real-time insights

See global traffic, network, and signalling insights, instantly.

Own your SIMs

We’ll transfer SIM keys to a new provider over-the-air on request.

PAYG data

Scale with no SIM fees for inactive SIMs and PAYG data plans.

Top rated by industry experts

Get in touch

From start-up to enterprise, we have a plan that fits your budget and needs, to help you get the most out of our platform.

  • Pay only for the data you use
  • Market rate data costs starting at €0.003/MB
  • Bulk SIM savings with customized pricing
  • Multiple network providers per country
  • Freedom to switch operators at any time

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Read articles from our blog to learn more about how to overcome the challenges of IoT connectivity.

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Frequently asked questions.