The radar monitor doesn't need to be pretty — it needs to be fast and small enough to fit beside your main display. Here are the four we recommend.
Specs that matter
144 Hz minimum (so radar tearing isn't distracting), 17-21 inch diagonal (fits beside main), 1080p (more pixels = wasted on radar). IPS or fast TN both fine.
- Koorui 24E3 — €115, 1080p 165 Hz IPS
- AOC 24G2SP — €135, 1080p 165 Hz IPS
- Used 21" 144 Hz panels — €60–€80 on local marketplaces
- Portable USB-C 15" 144 Hz — €185, neat compact build
Where to place it
Above your main monitor or to the side at an angle. Glance distance under 30°. Don't put it behind your keyboard — neck strain after 2 hours.
"Mobile UI works too — skip the monitor entirely. Demo to see."
