Connection Stability + Latency Tests
Two tools that test the same controller from different angles. The first watches for dropouts and brief disconnects across a full minute of use. The second runs the controller over Bluetooth and over USB then lines up the polling rate, jitter and reaction time of each side by side.
Wireless link to most modern PCs and laptops. Convenient but shares its airspace with Wi-Fi, mice, headsets and any other 2.4GHz device in the room.
A direct cable from controller to PC. Faster and steadier on paper but only as good as the cable, the port and the hub it shares power with.
Watch the link for missed inputs
A full minute of active polling looking for dropouts. Brief gaps over 100ms get marked in yellow. Anything longer is flagged in orange or red on the timeline so you can see exactly when the link stumbled.
Run the test to see your grade
Stability and latency become the controller's job description
Two numbers describe what a connection is doing under your hands. The first tells you whether inputs are arriving at all. The second tells you how fast they get there. The tools on this page measure each separately so you can see what is actually happening on your specific setup, not what the manufacturer would like you to believe.
Stability is whether inputs land
A missed poll over a long enough gap is an input the game never saw. In single-player that costs you a dropped attack or a missed jump. Online the consequences compound because the server and your screen briefly disagree about what happened, and the netcode has to reconcile that gap after the fact.
Measured by Tool 1Latency is how fast they get there
Latency is the time between your finger moving and the browser hearing about it. Five milliseconds is roughly a quarter of a 60Hz frame. Ten is half a frame. Twenty is a full frame of delay between your intent and the response on screen.
Measured by Tool 2Some genres notice, others don't
A racing or open-world game can absorb a few extra milliseconds without much consequence. Fighting games, twitch shooters and rhythm games sit at the other end where stability and latency together decide whether a frame-perfect input lands or drops.
Where it mattersRun the same controller through both connections
Two fifteen-second tests, one on Bluetooth and one on USB. Once both slots are filled the comparison below lines up the polling rate, jitter and estimated input latency so you can see exactly what wired is buying you.
Pair the controller over Bluetooth, confirm it is connected at the top of the page then run the test.
Plug the controller in over USB, confirm it is connected at the top of the page then run the test.