10 Best Wifi Router With Sim Cards 2025 in the UK

The TP-Link TL-MR105 is a solid choice if you need a portable 4G LTE WiFi router that uses a SIM card to provide internet access. It supports 4G Cat4 LTE with speeds up to 150 Mbps download and 50 Mbps upload, which is good for everyday tasks like streaming, gaming, and general browsing on up to 32 devices. It operates on the 2.4 GHz band with WiFi 4 (802.11n), covering most basic wireless needs but lacking the faster speeds and less crowded channels offered by newer WiFi 5 or WiFi 6 standards.

The router has one Ethernet port, allowing a wired connection if needed, which adds some flexibility. It features external antenna ports, so you can connect better antennas to improve signal strength, which is helpful in areas with weaker coverage. The device is lightweight and designed for easy plug-and-play use with a nano SIM card slot, managed through a simple app on Android or iOS. Security is covered with WPA-PSK and WPA2-PSK encryption, providing a decent level of protection for home or mobile use.

Running on a single band only and equipped with minimal Ethernet ports, the TL-MR105 might not accommodate many wired devices. It likely requires a constant power source due to the absence of a built-in battery. This 4G SIM router is well-suited for users looking for an affordable and straightforward device mainly for basic internet sharing at home or on the go. However, those wanting faster WiFi speeds, dual-band capabilities, or a built-in battery may want to consider other options.

The TP-Link TL-MR6400 is a versatile 4G LTE router that caters well to users needing mobile internet access, especially in areas with limited fixed-line connectivity. Equipped with a SIM card slot, it supports 4G LTE networks, offering download speeds up to 150 Mbps. This makes it suitable for streaming and general internet use across multiple devices, with the ability to connect up to 32 devices simultaneously. Its plug-and-play functionality means you can simply insert a SIM card and begin using it without any complex setup, which is great for users seeking simplicity.

The router operates on a 2.4 GHz single-band frequency, which is ideal for basic internet tasks but may not suffice for high-demand applications or environments crowded with many electronic devices, benefiting more from dual-band options. While its external LTE antennas ensure stable connectivity, the device's performance might be limited in areas with weak 4G coverage.

In terms of connectivity, it includes Ethernet ports, adding flexibility for wired connections, which is a plus for stable, high-speed internet access for desktops or smart TVs. The absence of a battery means it requires a constant power supply, which could limit mobility compared to portable routers with built-in batteries. Security features like parental controls are included, which help in managing and restricting internet access for safer browsing experiences. However, potential buyers should verify compatibility with their network providers, especially when using the router overseas, as special manual settings might be necessary.

The TL-MR6400 scores well in customer satisfaction with a 4.3-star rating, indicating reliability and user-friendliness. It’s important to note it uses older WiFi 4 standards, which might not be future-proof as newer WiFi technologies are adopted. Suitable for home or small office use, this router provides a balance of affordability and functionality for users who prioritize easy setup and straightforward performance.

The TP-Link Deco X50-5G AX3000 is a compelling choice for users seeking a Wi-Fi router with SIM card functionality. It offers ultra-fast broadband connectivity using 5G technology, enabling download speeds up to 3.4 Gbps and low latency of just 1 ms. This router supports both 4G and 5G networks, along with fixed-line internet access, making it highly versatile. You can start using it by simply inserting a SIM card.

It provides strong Wi-Fi signals courtesy of Deco mesh technology, ensuring coverage throughout your home. The AX3000 Dual-Band Wi-Fi 6 speeds are impressive, with up to 2402 Mbps on the 5 GHz band and 574 Mbps on the 2.4 GHz band, which is suitable for most modern devices like laptops, tablets, and smart televisions. The router also includes three Ethernet ports (1× 2.5 Gbps and 2× Gigabit ports), allowing for wired connections where needed.

The antenna quality is robust, promoting stable connections across various devices. Security features are well-covered through TP-Link HomeShield, offering network protection, parental controls, and real-time security management through the TP-Link Deco app. However, it's worth noting that the router does not include batteries, and thus requires continuous power supply. Additionally, the product dimensions (21.05 x 13 x 12.3 cm) and weight (500 g) suggest it's a bit bulky, which might be a consideration for its placement. This router is ideal for home use, providing comprehensive connectivity and security for various devices within a household.