Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Prime Day is still two weeks away, but the early deals are already arriving on Amazon. There's everything from the fun, like 8BitDo's Micro Bluetooth gamepad, to the practical, like the Levoit Core 400S air purifier. Falling firmly in the latter category is Amazon's latest offer, a 29 percent discount on the TP-Link Deco AXE5400 WI-Fi mesh router system. You can pick up the three-pack for $250, down from $350. The TP-Link Deco AXE5400 is our choice for best mesh Wi-Fi system for most people. It debuted in 2023 and scored an 87 in our review thanks to features like its incredible speed — arguably the most important measure of a good Wi-Fi system. It's also very reliable. The Wi-Fi system is very user-friendly and works well even in a large home. Plus, its basic security and parental control features come at no extra cost. Our only qualms were minimal like the app is a little rough and the power cables are a bit short. Shop Prime Day deals: Best Amazon Prime Day tech deals | Prime Day 2025 early deals | Amazon Prime Day deals | Everything you need to know about Amazon Prime Day