The single biggest tip: place your iPhone directly in front of you, not off to one side. The depth camera tracks best when it's facing you head-on. Next, make sure your hands are well lit — Motion locates your hands first and uses their pose to estimate where the controllers are, so dim or backlit hands hurt overall tracking. Drop the phone on a stand near the front edge of your desk so nothing on the desk blocks the camera, and angle it so the lens looks toward your body and hands rather than tilted up at your face.

From there, distance is the dial — for titles that need fine finger control, keep your hands closer to the camera so Motion can track each finger; for wider arm-motion titles like Beat Saber, scoot back so the camera can see your full upper body. If you have an iPhone Pro, switch to the rear LiDAR camera for those wider, full-body titles — it gives noticeably better depth at longer distances than the front FaceID camera.

Use Joy-Con 2 if you can — the built-in magnetometer keeps rotational tracking steadier.

If you want the highest tracking fidelity available, plug in a Quest or PICO headset and use its controllers as the tracking source — the headset's onboard cameras provide excellent precision. Put the headset in developer mode first, then connect it to your PC over USB.