Top 10 Cellular IoT Modules Compared (2026 Edition) – Which GSM/LTE Module Should You Choose?

The market for cellular IoT modules has evolved significantly over the past decade. While 2G GSM modules such as the SIM800L once dominated hobby and industrial projects, the industry is now rapidly transitioning to LTE Cat-1, LTE Cat-4, LTE-M (Cat-M1), and NB-IoT technologies. Selecting the right module is no longer simply a matter of finding the lowest-cost option. Designers must also consider long-term network support, firmware maturity, communication protocols, power consumption, antenna requirements, software libraries, and regional cellular network compatibility.

This article compares ten of the most widely used cellular IoT modules available in 2026. Whether you are building an ESP32-based IoT device, an EV charger, an industrial controller, a GPS tracker, or a remote monitoring system, this guide will help you choose the most suitable module.

 

What Should You Look for in a Cellular Module?

Before comparing modules, it is important to understand the parameters that matter most in real-world designs.

Network Technology

Choose the newest network technology supported in your country. LTE Cat-1 and LTE-M are generally recommended for new designs, while 2G modules should be used only for learning or legacy deployments.

GNSS Support

Integrated GNSS eliminates the need for a separate GPS receiver and simplifies PCB design.

Software Support

Good documentation, stable AT commands, and readily available software libraries can save many hours during development.

Availability

A technically excellent module is of little value if it is difficult to source consistently.

Power Consumption

Battery-operated products require modules optimized for low-power operation.

Industrial Certifications

Commercial products often require modules with carrier approvals and regulatory certifications.

 

Quick Comparison Table

Module	Network	GNSS	Voice	Typical Peak Current	UART	USB	MQTT/HTTPS	Arduino Support	ESP32 Support	Recommended For
SIM800L	GSM/GPRS	No	Yes	~2 A	Yes	No	Limited	Excellent	Excellent	Beginners
SIM900A	GSM	No	Yes	~2 A	Yes	No	Limited	Excellent	Excellent	Educational Projects
A7670 Series	LTE Cat-1	Optional	Yes	~1.5 A	Yes	Yes	Yes	Excellent	Excellent	Modern IoT
SIM7672	LTE Cat-1	Yes	Yes	~1.5 A	Yes	Yes	Yes	Excellent	Excellent	Industrial Products
SIM7600	LTE Cat-4	Yes	Yes	~2 A	Yes	Yes	Yes	Excellent	Excellent	Industrial Gateway
SIM7600G-H	Global LTE Cat-4	Yes	Yes	~2 A	Yes	Yes	Yes	Excellent	Excellent	Worldwide Products
EC200U	LTE Cat-1	Optional	Yes	~1.3 A	Yes	Yes	Yes	Good	Excellent	Commercial IoT
EC25	LTE Cat-4	Yes	Yes	~2 A	Yes	Yes	Yes	Good	Excellent	Vehicle Tracking
EG915U	LTE Cat-1	Optional	Yes	~1.2 A	Yes	Yes	Yes	Good	Excellent	Smart Meter
BG95	LTE-M/NB-IoT	Yes	No	<700 mA	Yes	Yes	Yes	Moderate	Excellent	Battery Devices
BG96	LTE-M/NB-IoT	Yes	No	<700 mA	Yes	Yes	Yes	Moderate	Excellent	Asset Tracking
SARA-R4	LTE-M	Optional	No	<600 mA	Yes	USB	Yes	Moderate	Good	Medical Equipment
L610	LTE Cat-1	Optional	Yes	~1.2 A	Yes	Yes	Yes	Moderate	Good	Industrial IoT
A9G	GSM + GPS	GPS	Yes	~2 A	Yes	No	Limited	Excellent	Excellent	Student Projects
Air780E	LTE Cat-1	Optional	Yes	~1 A	Yes	Yes	Yes	Growing	Excellent	Low-cost IoT

 

Detailed Module Reviews

1. SIM800L

The SIM800L remains one of the most popular GSM modules ever manufactured. Its extremely low price, simple UART interface, and extensive online documentation make it an excellent platform for beginners learning AT commands and GSM communication.

Advantages

·         Extremely inexpensive

·         Massive online community

·         Easy AT command set

·         Supports SMS, voice, GPRS, TCP/IP

Disadvantages

·         Depends on legacy 2G networks

·         High current bursts during transmission

·         No integrated GNSS

·         Unsuitable for long-term commercial products in regions where 2G is being phased out

Overall Rating

⭐⭐⭐⭐⭐ for learning
⭐⭐☆☆☆ for new commercial products

 

2. SIM7600 Series

The SIM7600 family is one of the most versatile LTE Cat-4 modules available. It supports high-speed cellular data, GNSS, voice calls, USB connectivity, MQTT, HTTPS, FTP, SSL/TLS, and multiple satellite constellations.

Advantages

·         Excellent documentation

·         Integrated GNSS

·         High-speed LTE

·         Mature firmware

·         Widely available

Disadvantages

·         Higher power consumption

·         More expensive than Cat-1 modules

Best Applications

·         EV chargers

·         Industrial gateways

·         Dash cameras

·         Vehicle telematics

·         Remote firmware updates

Overall Rating

⭐⭐⭐⭐⭐

 

3. A7670 Series

The A7670 family has rapidly become a favorite for new IoT designs because it offers LTE Cat-1 performance at a lower cost and lower power consumption than Cat-4 modules.

Compared with the SIM800L, it is far more future-proof while remaining relatively easy to integrate.

Advantages

·         LTE Cat-1

·         Lower power consumption

·         Excellent value

·         Modern firmware

·         Long-term network compatibility

Disadvantages

·         Fewer community tutorials than the SIM800L

Overall Rating

⭐⭐⭐⭐⭐

 

4. Quectel EC200U

The EC200U has become one of the most widely adopted industrial LTE Cat-1 modules, especially in smart metering, point-of-sale terminals, and industrial automation.

It is known for stable firmware, strong technical documentation, and broad carrier compatibility.

Advantages

·         Industrial-grade reliability

·         Excellent protocol support

·         Compact design

Disadvantages

·         Slightly higher cost than hobby-focused modules

Overall Rating

⭐⭐⭐⭐⭐

 

5. Quectel BG95

If your project must run on a battery for several years, the BG95 is one of the strongest candidates.

It supports LTE-M, NB-IoT, and GNSS while consuming dramatically less power than Cat-1 or Cat-4 modules.

Typical applications include:

·         Water meters

·         Gas meters

·         Agriculture sensors

·         Environmental monitoring

·         Smart city infrastructure

Overall Rating

⭐⭐⭐⭐☆

 

6. Quectel BG96

The BG96 extends the BG95 concept with broader global deployment and mature software support.

It is frequently found in logistics and asset tracking products where low data throughput and long battery life are priorities.

Overall Rating

⭐⭐⭐⭐☆

 

7. Air780E

The Air780E has gained popularity because it combines LTE Cat-1 connectivity with competitive pricing.

It offers:

·         MQTT

·         HTTPS

·         SSL/TLS

·         GNSS (selected variants)

·         Compact size

It is becoming increasingly common in ESP32-based commercial IoT products.

 

8. Fibocom L610

Fibocom’s L610 provides industrial-grade LTE Cat-1 connectivity and is increasingly used in smart retail terminals, vending machines, and remote monitoring equipment.

Advantages

·         Stable firmware

·         Industrial reliability

·         Good LTE performance

 

9. u-blox SARA-R4

The SARA-R4 is aimed at high-reliability applications rather than low-cost hobby projects.

It is commonly used in:

·         Medical equipment

·         Automotive electronics

·         Industrial automation

·         Certified commercial products

Its excellent documentation and long product lifecycle make it attractive for professional designs.

 

10. A9G

The A9G integrates GSM and GPS into a single compact module.

It remains popular for educational GPS tracker projects because it reduces component count and is inexpensive.

However, its documentation and firmware ecosystem are not as mature as those of SIMCom or Quectel products.

 

Which Module Should Beginners Buy?

For learning AT commands and GSM fundamentals:

·         SIM800L

For learning modern LTE-based IoT:

·         A7670 Series

·         Air780E

For GPS tracker projects:

·         SIM7600

·         A9G

For industrial projects:

·         EC200U

·         SIM7672

·         L610

 

Which Module is best for ESP32?

The ESP32 communicates with nearly all cellular modules over UART using AT commands.

The easiest modules to integrate are:

·         SIM800L

·         A7670

·         SIM7600

·         EC200U

·         Air780E

These modules have excellent community support and readily available example code.

 

Recommendations

If you are starting from scratch today, I would recommend:

Learning

SIM800L

It remains the simplest platform for understanding AT commands, SMS handling, TCP/IP communication, and UART interfacing.

Commercial IoT Products

A7670 Series or Quectel EC200U

These modules provide LTE Cat-1 connectivity with excellent long-term viability and lower power consumption than Cat-4 modules.

High-End Industrial Equipment

SIM7600 or EC25

They offer fast LTE connectivity, integrated GNSS, robust software support, and are well suited to demanding applications such as EV chargers, industrial gateways, and vehicle telematics.

Battery-Powered Devices

BG95 or BG96

Their LTE-M and NB-IoT capabilities deliver exceptional battery life, making them ideal for sensors and smart metering.

 

Final Thoughts

The era of relying solely on 2G GSM modules is coming to an end. While modules like the SIM800L remain valuable for education and prototyping, new product designs should prioritize LTE Cat-1, LTE-M, or NB-IoT solutions to ensure compatibility with evolving cellular networks.

For most engineers beginning new commercial IoT projects in 2026, LTE Cat-1 modules such as the A7670 Series and Quectel EC200U offer the best balance of cost, ease of development, performance, and long-term support. Meanwhile, applications demanding higher bandwidth or integrated positioning continue to benefit from modules like the SIM7600 and EC25, while battery-operated systems are best served by the BG95 and BG96.

Choosing a module that aligns with your application’s connectivity, power, and lifecycle requirements will simplify development and improve the longevity of your product.