Don't get lost in the numbers. Here's what each VR spec actually means for your eyes.
Resolution: how sharp it looks
VR resolution is quoted per eye, e.g. 2064×2208. More pixels mean sharper images and less of the 'screen door' effect where you can see gaps between pixels. But resolution alone isn't everything — lens quality matters just as much, which is why the Quest 3's pancake lenses look clearer than higher-resolution headsets with worse optics.
Refresh rate: how smooth it feels
Measured in Hertz (Hz), refresh rate is how many times the screen updates per second. 72Hz is the floor for comfort; 90Hz is the sweet spot; 120Hz (Quest 3) and 144Hz (Valve Index) feel exceptionally smooth and reduce motion sickness for sensitive users.
Field of view: how immersive it feels
FOV is how much of your vision the display fills, measured in degrees. A wider FOV (the Valve Index leads here) feels more immersive and less like looking through goggles. Most standalone headsets land around 96–110° horizontally.
What actually matters
Don't buy on spec sheets alone. Comfortable lenses, a good fit and the right content matter more than chasing the biggest numbers. A well-tuned 90Hz headset beats a poorly-implemented 120Hz one every time.