How We Ranked the 5 Best Routers for Xfinity

Upload speed is just the reverse of download speed. Instead of pulling down info, you’re uploading it. This is common when uploading documents or photos to a website, or when you’re streaming content to a platform, like Twitch.

Generally speaking, your upload speed is going to be limited more by your ISP than by your router, because bandwidth is a two-way street when it comes to routers. Pulling 100 MBits down means you should be able to push 100 MBits up, but if your ISP throttles your upload, then it doesn’t matter if your router allows for a full gigabit up, you can only go as fast as the “speed” limit allows. It’s for that reason we set 2.4 GHz upload limits at 50 Mbits, but in reality, anything you can get is acceptable, since this band isn’t – and shouldn’t – be used for anything that requires real speed.

The much faster 5 GHz band offers up much greater bandwidth and is much, much better at meeting high-speed demands. Streaming high-quality video, using streaming services, gaming, downloading large files and games – the 5 GHz band is what makes all of these activities quick and bearable. It reaches a lower range than the 2.4 GHz band, but it’s also much faster, so you’ll use it more, especially on newer devices that actually support the band.

Given how much you’ll be using this band, we recommend a speed of at least 200 Mbits/s to ensure you’re able to enjoy streaming and gaming on at least a few devices simultaneously. Any lower and you start to run into real bottleneck concerns, such as endless buffering, lagging, or drops in connection.

Router range is exactly what the name suggests: how far can you get from the router before you start experiencing issues with your connection? The complicating factor is the simple fact that range depends on the band you’re using. 2.4 GHz is a band that offers greater range, so it gives tests results that show a greater range than tests that use the 5 GHz band. In general, our research found most publications used the 5 GHz band, so our recommendations are based on that.

As such, we recommend your router have a range of at least 50 ft. This gives you a good “bubble” around the router that you can connect to, but it’s important to know that things like the walls in your home can cause issues. Thicker walls block more signal, thinner walls block less. Some materials will also do a better job than others will at stopping signal, so if you see a router with a range of 65 ft, know that it might not reach that far in your home. It could reach further – or not nearly as far. This is also why you get dead zones in your home – it’s a matter of geometry and materials.

On a router, latency refers to how long it takes for the router to send out and receive a signal. The longer it takes, the more delay there is between you sending and receiving data, which can introduce lag in video games and also makes video conferencing harder since the person you’re speaking with now has to contend with your delay and vice versa. If you’ve ever spent a call talking over someone because you don’t know they started talking a second ago, that’s latency.

For that reason, we recommend a latency below 30 ms. As low as you can get it is obviously preferable, but latency is another aspect of your internet connection that is hard to manage. Latency differs to every single place you connect to, and every ISP has its own latency they “add” because you have to connect to their service too. Latency creeps in from your ISP, from the site you’re requesting data from, from your router, and from your own onboard Wi-Fi antenna – and that’s just to name a few sources. If you’re gaming, you also have a delay introduced by your connection to game servers and the delay that exists on a hardware level when you input commands.