TP-Link WA855RE vs TP-Link WA850RE : Which range extender should you buy?

The key difference between the two is that the TP-Link WA855RE features external adjustable antennas for slightly better range and directional control, while the TP-Link WA850RE uses internal antennas for a more compact, flush look against your wall socket. If you want better signal stability through walls, you should buy the WA855RE; if you prefer a lower-profile design that will not get bumped in tight spaces, you should buy the WA800RE.

Both models offer N300 single-band speeds and share the same internal performance capabilities. They both plug directly into a standard wall outlet, feature a single Fast Ethernet port for wired devices, and support quick WPS setup. Underneath the plastic casing, the core wireless hardware and maximum transmission speeds are virtually identical across both devices.

Because both options sit at a nearly identical price point, your choice comes down to placement and aesthetic preference. The WA850RE has a smooth, rounded body that sits flat against the wall, making it ideal for narrow hallways or outlets behind furniture. The WA855RE has two movable antennas on the sides, which allow you to angle the wireless signal toward specific rooms for slightly better performance across open layouts.