Uniden
Uniden R8
$749.99
Released 2021-11
Best Radar Detectors · head-to-head
A sourced, side-by-side comparison. Valentine One Gen2 is cheaper at $499. Every spec and price links to its source.
Uniden
$749.99
Released 2021-11
Valentine Research
$499Cheaper
Released 2020-03
The Valentine One Gen2 wins 1 of the 1 specs we compare head to head; the other wins 0. The Valentine One Gen2 is the cheaper at $499. The Valentine One Gen2 both leads on specs and costs less — the straightforward pick.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $749.99 MSRP from uniden.com | $499 |
| Brand | Uniden | Valentine Research |
| Released | 2021-11 | 2020-03 |
| Radar bands | X, K, Ka, Laser | X, K, Ka, Laser |
| Lidar detection | Yes | Yes |
| Gps built (in) | Yes | No |
| Directional alerts | 360° directional arrows via dual-antenna (front + rear) | Front, side, and rear Radar Locator arrows with Bogey Counter |
| Range rating | Extreme long range; dual Blackfin DSPs; dual LNAs | Extreme long range; CHIRP-adapted radar-seeking engine; SAW-D2L and LNA |
| Display type | Multi-color OLED with voice alerts | LED display with directional arrows and signal strength |
| Bluetooth app | Bluetooth; R/TACH app | Bluetooth 5.0; V1Connection app (free); V1Driver and JBV1 supported |
| Auto learn filtering | GPS auto-lockouts for stationary false alerts | No native GPS; app-based lockouts via V1Driver/JBV1; K-Verifier BSM filtering |
| Mount type | Dual suction cup windshield mount | Windshield suction cup and visor mount (both included) |
| Warranty years | 1 | 1 |
| Weight (oz) | 7.4 | 6.5 |
| Dimensions | 4.88" L x 3.85" W x 1.52" H | 4.6" L x 3.8" W x 1.0" H |
Sources — Uniden R8: uniden.com (verified 2026-06-26). Valentine One Gen2: valentine1.com (verified 2026-06-26).
Where the two actually differ on the specs we track (9 of 12). Matching specs are omitted.