Move Through Time
Use Play, Step, or the year slider. Watch which technologies appear, mature, and become risky.
Cellular IoT Evolution Workbench
Compare 2G, 3G, LTE, LTE-M, NB-IoT, 5G NR, RedCap, eRedCap, and NTN as IoT design options.
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Interactive cellular IoT evolution timeline for comparing legacy 2G/3G migration risk, LTE Cat-1, LTE-M, NB-IoT, 5G NR, RedCap, eRedCap, and NTN tradeoffs for independent IoT technology selection.
Cellular IoT Evolution Workbench
Step through cellular IoT generations and compare what changed: data rate, battery behavior, coverage reach, mobility, device complexity, and sunset risk. The goal is not to memorize a timeline; it is to choose the right radio for a real IoT deployment.
Release 13
LTE-M, NB-IoT, and EC-GSM-IoT standardised for licensed LPWA.
Release 17
5G RedCap brings reduced-capability NR for mid-tier IoT.
Migration Risk
2G and 3G sunsets are regional and operator-specific.
Design Rule
Pick for payload, battery, mobility, coverage, and lifespan.
Choose A Use Case
Select a sensor, tracker, wearable, camera, or legacy fleet and compare the recommendation.
Inspect Tradeoffs
Click a bar to see data rate, battery, coverage, mobility, complexity, and deployment cautions.
Plan Migration
Use the diagnosis panel to decide whether legacy devices need redesign, module swaps, or field testing.
Evolution Timeline
Bars show practical availability windows for learning comparison, not a promise that every operator supports a technology in every country.
2000
2030
2026
What Actually Changed For IoT?
The moving token tracks the design emphasis across generations: from reused phone networks to purpose-built low-power and mid-tier IoT.
Cellular IoT Quick Reference
2G and 3G are migration risks.
They enabled early M2M, but sunsets vary by country and operator. A global device fleet can lose service unevenly.
LTE-M and NB-IoT are not interchangeable.
LTE-M supports mobility and higher bursts. NB-IoT favors stationary, low-rate, deep-coverage sensors.
RedCap fills the gap above LPWA.
RedCap reduces 5G NR capability for devices that need more than LPWA but less than full 5G broadband.
Coverage is operator and band dependent.
Always test in the deployment region. Module support, roaming, antenna design, and network features matter.
Independent Learning Support
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Beginner Anchor
Cellular IoT is not one technology. It is a family of radios sharing licensed mobile infrastructure.
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Design Question
Ask first: how much data, how often, moving or fixed, battery target, indoor depth, and expected product life?
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Common Mistake
Choosing the fastest network can shorten battery life, increase cost, and make certification harder.
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Migration Rule
Do not replace 2G or 3G blindly. Map each device to a use case, coverage area, SIM profile, and service lifetime.
Technical Accuracy Notes And Sources
Licensed LPWA standardisation
3GPP Release 13 introduced the cellular IoT portfolio that includes NB-IoT, eMTC/LTE-M, and EC-GSM-IoT.
Power and coverage features
LTE-M uses 1.4 MHz operation, coverage enhancement, eDRX, and PSM-style power management for lower-power IoT designs.
Reduced capability NR
RedCap is a 5G NR feature, introduced in Release 17 and enhanced in Release 18, for reduced-complexity mid-tier devices.
Regional retirement
2G and 3G retirement is real, but timing is not universal. Treat the page as a planning model, not a country-specific schedule.
Related Learning
NB-IoT vs LTE-M Comparison
Use this after the timeline to inspect the two main LTE LPWA options side by side.
NB-IoT PSM Animation
Deepen the battery-life story by studying power saving mode and reachability windows.
Cellular IoT Fundamentals
Read the supporting chapter for architecture, deployment, and operator considerations.
LPWAN Comparison
Compare cellular IoT with non-cellular LPWAN choices such as LoRaWAN.