Learn IoT: Cellular, SIM, eSIM and LPWA Guides | GlobalIoT.com
Skip to content

Learn IoT

Educational guides and technical references for understanding cellular IoT technologies, standards, and best practices.

Learn · IoT fundamentals

What is IoT (Internet of Things)?

IoT connects physical devices so they can sense, exchange data and act. Learn its components, examples, benefits, risks and deployment process.

Read more
Learn · Connectivity fundamentals

What is cellular IoT?

Cellular IoT connects devices over licensed mobile networks using LTE-M, NB-IoT, LTE and 5G. Learn how it works, its tradeoffs, and how to choose a technology.

Read more
Learn · Connectivity fundamentals

IoT connectivity explained

Compare cellular, Wi-Fi, LoRaWAN, satellite, wired and Bluetooth IoT connectivity by range, power, mobility, cost structure and control.

Read more
Learn · SIM technology

IoT SIM vs eSIM vs iSIM

Compare removable IoT SIMs, soldered MFF2, eSIM and iSIM, including form factor, eUICC provisioning, hardware design and lifecycle tradeoffs.

Read more
Learn · eSIM standards

eSIM vs eUICC: what is the difference?

Learn why eSIM and eUICC are not synonyms, how remote SIM provisioning works, and how GSMA SGP.02, SGP.22 and SGP.32 architectures differ.

Read more
Learn · eSIM standards

What is SGP.32?

SGP.32 is the GSMA IoT eSIM architecture using an eIM and IoT Profile Assistant. Learn how it works, how it differs from SGP.02 and what to verify.

Read more
Learn · Cellular operations

How does a multi-network IoT SIM work?

Learn how multi-network IoT SIMs use roaming, multi-IMSI, steering and profile changes, what failover really means, and how to test network choice.

Read more
Learn · Cellular LPWA

LTE-M vs NB-IoT: which should you choose?

Compare LTE-M and NB-IoT for throughput, latency, mobility, voice, coverage and battery design, including PSM and eDRX deployment tradeoffs.

Read more
Learn · 5G IoT

What is 5G RedCap?

5G RedCap is a 3GPP Release 17 reduced-capability device class. Learn its position between LPWA and full 5G, use cases and maturity questions.

Read more
Learn · Connectivity economics

What is IoT data pooling?

Learn how IoT data pooling shares an allowance across SIMs, how it compares with per-SIM plans, and how to model overage and uneven usage.

Read more
Learn · Network security

Public vs private APN for IoT

Compare public and private APNs for IoT, including internet exposure, private addressing, static IPs, IPsec VPNs, routing and security controls.

Read more
Learn · International connectivity

What is permanent roaming in IoT?

Understand permanent roaming for IoT, why regulators or operators may restrict it, and how local profiles, eSIM and multi-IMSI can reduce risk.

Read more
Learn · Buying guidance

How to choose an IoT connectivity provider

Evaluate an IoT connectivity provider by network access, resilience, platform controls, support, security, contracts and total lifecycle cost.

Read more
Learn · Connectivity economics

How much does IoT connectivity cost?

IoT connectivity cost depends on SIM count, data, networks, countries, routing and support. Learn pricing models and how to compare quotes without surprises.

Read more