What Is The Best Radar Detector?

The best windshield-mounted radar detector in independent tests by Speed Measurement Labs and 1stRadarDetectors.com is the Beltronics STi Driver (see sources). The Bel STi Driver provides the best detection over the greatest distances with the least number of false alerts and 100% invisibility to police radar detector detectors. The Valentine One radar detector comes in a close second, with the following 3 radar detectors rounding out the top 5 radar detectors in the world: Escort Passport 9500i, Escort Passport 8500 X50, and Beltronics Pro RX65. See the source link for a comparison and links to all of these products.
If you are concerned about police laser (LIDAR), your only alternative is a laser jammer. Most radar detectors will detect police laser, but by then it’s already too late. 0.2 seconds under the laser and your speed is recorded. A laser jammer detects and jams the laser gun, allowing you time to adjust your speed if necessary. Like radar detectors, laser jammers are also legal in nearly every state. There are a number of laser/radar combo systems, like the Escort Passport 9500ci, which includes the new Escort ZR4 laser jammer.
(In a perfect world, we would always drive at or below the speed limit. However, humans tend to be imperfect and occasionally make mistakes. In a moment of distraction, you may accidentally exceed the speed limit. At one of those moments, a police radar gun or laser gun might happen to be pointed at your vehicle. A radar detector can ALERT you to potential speed traps and REMIND you to check your speed and slow down if necessary.)

The best radar detector doesn’t exist. Just do the speed limit.