Overview
The SIM800C is a quad-band GSM/GPRS wireless communication module designed for cellular connectivity in compact and cost-sensitive IoT and M2M applications.
It is widely used in remote monitoring devices, GPS trackers, and smart metering systems, where reliable 2G connectivity, low power consumption, and small form factor are required.
The SIM800C integrates baseband processing, RF transceiver, and protocol stack, enabling rapid deployment of cellular-enabled products.
Core Parameters

| Parameter | Specification |
|---|---|
| Device Type | GSM/GPRS Module |
| Supported Bands | Quad-band 850 / 900 / 1800 / 1900 MHz |
| GPRS Class | Class 12 |
| Data Rate | Up to 85.6 kbps (DL) / 42.8 kbps (UL) |
| Supply Voltage | 3.4 V to 4.4 V |
| Communication Interfaces | UART, SIM, GPIO |
| SMS | Text and PDU mode |
| Audio Support | Voice, DTMF |
| Operating Temperature | -40°C to +85°C |
| Package Type | LCC |
| Dimensions | Compact SMT form factor |
These parameters make the device suitable for 2G cellular IoT applications, especially where cost control, global GSM compatibility, and compact size are critical.
Features
- Quad-band GSM/GPRS support for global deployment
- Low power consumption with multiple sleep modes
- AT command interface for easy integration
- Built-in TCP/IP stack simplifies data transmission
- Supports SMS, voice call, and data services
- Compact SMT package suitable for automated assembly
Typical Application Scenarios
- GPS tracking and fleet management devices
- Smart meters and remote data loggers
- Industrial remote monitoring systems
- POS terminals and vending machines
- Alarm and security systems
In many GSM-based IoT systems, modules like SIM800C are often paired with sensors such as the TDK ICM-42688-P motion sensor to enable remote monitoring and data transmission.
Performance Comparison
| Feature | SIM800C | Older GSM Module | LTE Cat-1 Module |
|---|---|---|---|
| Network Type | 2G GSM/GPRS | 2G GSM | LTE |
| Power Consumption | Low | Higher | Medium |
| Cost | Very Low | Low | Higher |
| Design Complexity | Low | Medium | High |
| Global Coverage | Wide (2G) | Wide | Region-dependent |
Compared with LTE-based modules, the SIM800C offers significant cost and power advantages, making it ideal for legacy 2G networks and long-life IoT deployments where bandwidth requirements are modest.
Conclusion
The SIM800C is a mature and widely adopted GSM/GPRS module that provides reliable cellular connectivity for cost-sensitive and space-constrained applications. Its global band support, low power operation, and ease of integration make it a practical choice for a wide range of IoT and M2M designs.
Manufacturer Profile

SIMCom Wireless Solutions is a leading supplier of cellular communication modules, offering GSM, LTE, and IoT connectivity products. SIMCom modules are widely used in tracking, metering, industrial, and consumer electronics due to their reliability, competitive pricing, and long-term availability.
FAQ
Q1: Does SIM800C support global GSM networks?
Yes. It supports quad-band GSM, enabling worldwide 2G connectivity.
Q2: Can SIM800C send SMS and make voice calls?
Yes. It supports SMS (text and PDU), voice calls, and DTMF.
Q3: Is SIM800C suitable for low-power applications?
Yes. It includes sleep modes to reduce power consumption when idle.
Q4: Is SIM800C still suitable for new designs?
It is suitable in regions where 2G networks remain available and supported.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need.
You can find more component guides and application notes in our Component Technical Guides section: