Uniden
Uniden R8
$749.99
Released 2021-11
Best Radar Detectors · head-to-head
Uniden R8 vs Cobra RAD 700i
A sourced, side-by-side comparison. Cobra RAD 700i is cheaper at $249.95. Every spec and price links to its source.
Cobra
Cobra RAD 700i
$249.95Cheaper
Released 2023-09
Which is better: the Uniden R8 or Cobra RAD 700i?
The Cobra RAD 700i wins 1 of the 1 specs we compare head to head; the other wins 0. The Cobra RAD 700i is the cheaper at $249.95. The Cobra RAD 700i both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Uniden R8 | Cobra RAD 700i |
|---|---|---|
| US price | $749.99 MSRP from uniden.com | $249.95 MSRP from cobra.com |
| Brand | Uniden | Cobra |
| Released | 2021-11 | 2023-09 |
| Radar bands | X, K, Ka, Laser | X, K, Ka, Laser |
| Lidar detection | Yes | Yes |
| Gps built (in) | Yes | Yes |
| Directional alerts | 360° directional arrows via dual-antenna (front + rear) | — |
| Range rating | Extreme long range; dual Blackfin DSPs; dual LNAs | Premium long range; LaserEye front and rear laser detection |
| Display type | Multi-color OLED with voice alerts | 5-color OLED (customizable) |
| Bluetooth app | Bluetooth; R/TACH app | Bluetooth; Drive Smarter app (CarPlay & Android Auto) |
| Auto learn filtering | GPS auto-lockouts for stationary false alerts | AutoLearn Intelligence GPS lockouts; TSR traffic sensor rejection |
| Mount type | Dual suction cup windshield mount | EZ Mag Mount (magnetic windshield) |
| Warranty years | 1 | 3 |
| Weight (oz) | 7.4 | 6.4 |
| Dimensions | 4.88" L x 3.85" W x 1.52" H | 5.13" D x 3.13" W x 1.25" H |
Sources — Uniden R8: uniden.com (verified 2026-06-26). Cobra RAD 700i: cobra.com (verified 2026-06-26).
What's the difference between the Uniden R8 and Cobra RAD 700i?
Where the two actually differ on the specs we track (8 of 12). Matching specs are omitted.
- Range rating: Uniden R8 Extreme long range; dual Blackfin DSPs; dual LNAs vs Cobra RAD 700i Premium long range; LaserEye front and rear laser detection
- Display type: Uniden R8 Multi-color OLED with voice alerts vs Cobra RAD 700i 5-color OLED (customizable)
- Bluetooth app: Uniden R8 Bluetooth; R/TACH app vs Cobra RAD 700i Bluetooth; Drive Smarter app (CarPlay & Android Auto)
- Auto learn filtering: Uniden R8 GPS auto-lockouts for stationary false alerts vs Cobra RAD 700i AutoLearn Intelligence GPS lockouts; TSR traffic sensor rejection
- Mount type: Uniden R8 Dual suction cup windshield mount vs Cobra RAD 700i EZ Mag Mount (magnetic windshield)
- Warranty years: Uniden R8 1 vs Cobra RAD 700i 3
- Weight (oz): Uniden R8 7.4 vs Cobra RAD 700i 6.4
- Dimensions: Uniden R8 4.88" L x 3.85" W x 1.52" H vs Cobra RAD 700i 5.13" D x 3.13" W x 1.25" H