Comparing the features and performance of E-Lins’ 4g sim routers H685 and H820.

E-Lins is a professional manufacturer of industrial-grade wireless routers and modems. Its products are widely used in M2M, IoT, and automotive fields. This article will compare the features and performance of E-Lins’ two 4g routers, H685 and H820, to help you choose a router that suits your needs.

The H685 and H820 series 4g sim routers are 3G/4G wireless network solutions designed to provide critical connectivity in challenging, extreme environmental conditions such as external racks, urban elements (street lights, information screens, bus stops, etc.), industrial warehouses, production lines, vehicles, external remote monitoring systems, etc.

The similarities between the two routers:

- Supports 2g/3g/4g LTE networks of multiple operators, with a SIM card slot;

- Supports cellular/WAN RJ45/WiFi client failover and load balancing;

- Supports LTE advanced features with SIM-based automatic operator selection;

- Supports NMS network management system, Web management, SMS, SSH, Telnet, Command, and SNMP;

- Supports WiFi (802.11 b/g/n, 2.4 GHz), providing a wireless transmission rate of up to 300Mbps.

- Built-in certified 3g/4g/LTE enterprise/industrial grade module;

- Built-in transient and reverse polarity voltage protection, overcurrent and overvoltage protection;

- 5-40V DC voltage input range (5-60V DC optional), POE, Terminal. Tri-power input.

- Support GPS/GNSS;

- Support serial port;

- Supports Ethernet (T1, DSL, Cable, MetroE), WiFi as WAN and Metro WiFi;

- Rugged shell that is shock-resistant and impact-resistant;

- Supports desktop, wall-mounted, and Din-rail installation;

- Supports external antenna connection, replaceable high-gain antenna;

- Support MIMO technology.

The differences between the two routers:

The H685 4g router and H820 4g router are both excellent products of E-Lins. Their main differences lie in the following aspects:

- Size: The size of the H685 4g router is 100mm x 60mm x 21mm and the weight is 220g. It is an ultra-small router suitable for embedded applications;

The H820 4g router measures 168mm x 104mm x 25mm and weighs 450g. It is a standard-sized router suitable for external installation.

- Ethernet port: The H685 4g router has only 2 Ethernet ports, which can meet basic wired connection needs; the H820 4g router has 5 Ethernet ports, providing more wired connection options. It is worth mentioning that the WAN port of both can be set to LAN, so the H685 has 2 LAN ports and the H820 has 5 LAN ports.

- Terminal: The H685 series has 10pin terminals to support serial port and DIO functions. The H820 only has a 2-pin terminal for power input, and the DB9 port supports the serial port function of the H820.

In summary, E-Lins' 4g routers H685 and H820 are high-performance, highly reliable, and highly secure industrial-grade wireless routers that adapt to various complex environments and applications. Their main differences are size, Ethernet port, serial port, and DIO. You can choose the right router based on your specific needs and budget. If you need a compact router, the H685 4g router is a good choice; if you need a standard-sized router with more wired connections, the H820 4g router is a better choice.