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Cobra SPX 5300

Radar detector

6 Reviews | 1 question - 1 answer

Item # 079SPX5300

This item is no longer available.

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Our take on the Cobra SPX 5300

Cobra's SPX 5300 radar detector provides that extra feeling of comfort when you're on the road. This compact travel companion tracks multiple safety, laser, and radar bands, and its UltraBright Data Display™ gives you an instant understanding of nearby threats. You can drive with confidence knowing you've got 360-degree laser coverage and alerts for POP instant-on radar.

Like a force shield for your car

Cobra's SPX 5300 radar detector provides that extra feeling of comfort when you're on the road. This compact travel companion tracks multiple safety, laser, and radar bands, and its UltraBright Data Display™ gives you an instant understanding of nearby threats. You can drive with confidence knowing you've got 360-degree laser coverage and alerts for POP instant-on radar.

Cobra SPX 5300 radar detector

This compact detector offers an incredibly low profile, measuring in at only 2-7/8" x 1-1/4" x 4-1/4".

Advanced radar detector detection

The SPX 5300 also provides complete immunity to Spectre I and VG-2 radar detector detection devices, giving you a heads-up when they're in proximity. Its rugged chassis protects super-fast circuitry that alerts you to upcoming problems well in advance. You can follow the 5-level digital strength signal meter to learn how close you are to the signal's source.

Handy added features

You can choose between city and highway modes to keep false alerts to a minimum, or turn on the dim mode to give your eyes a break when driving at night. Want to keep things quiet? The IntelliMute® feature reduces false alerts based on your relative speed, and keeps your detector free from detection.

Sorry, but we cannot ship radar detectors to Virginia or the District of Columbia.

Product Highlights:

  • detects 7 radar bands, 6 laser bands, 1 safety band
  • digital voice and audio tone alerts for radar, laser, and POP
  • city/highway modes
  • 360° laser protection
  • VG-2 and Spectre I immunity and alerts
  • display includes signal strength meter
  • dim and auto-mute/intelligent-mute modes

What's in the Box:

  • Radar detector
  • Windshield mounting bracket with two suction cups
  • 75" Straight power cord with cigarette lighter adapter
  • Self-adhesive hook-and-loop pad
  • Operating Instructions
  • Product registration card

Cobra SPX 5300 Reviews

Average Customer Review(s):

(6 Reviews)

Cobra SPX 5300

Director from Las Vegas, NV on 8/8/2016

Crutchfield Customer Review (What's this?)

I like the sleek design and all of its features for the price. The delivery of the unit was fast and professional. Manual was very good at describing what all the features are and how they work.But the main feature that fell through for me was the dimmer switch for brightness. I cannot get the display to light up enough for me to see anything day or night. I have no idea what the different beeps and alert sounds are for because I cannot see what is suppose to be flashing as per the manual. But I CAN tell you it works well.

Pros: Many cool features

Cons: Not being able to see the display well. Not lite up well.

It's alright...

Paul from Jacksonville, IL on 5/12/2016

Crutchfield Customer Review (What's this?)

It has not gone off for me all that much. Does very well in not picking up false alarms. Have not had a clear encounter with a cop using a speed detector but it has worked for the permanent speed detector at school.



Cobra radar

Dot J from lehigh acres, FL on 3/27/2016

Crutchfield Customer Review (What's this?)

My new Cobra radar is great and, I love it. Cobra is the way to go!



Cobra SPX 5300

Sean from Dallas,TX on 6/17/2015

Crutchfield Customer Review (What's this?)

This is one of the best I have ever used.

Pros: Everything

Cons: None

Cobra radar detectir

Anonymous from Gadsden, AL on 12/29/2014

Crutchfield Customer Review (What's this?)

Great product and value


Cons: None

Don't waste your money

Jeff M from Chicago, IL on 7/10/2013

Crutchfield Customer Review (What's this?)

I bought this item after i got a speeding ticket with a hefty fine. I installed the unit and was very disappointed when I rode past not one but two state troopers who obviously had their lasers out and going, trying to catch speeders. The item didn't even go off! I did study the manual before using it, so very unlikely it was not on the right setting. Don't waste your money.

Pros: Inexpensive

Cons: Weak Doesn't even pick up signals 50 feet away


Hands-on research

Features and Specs

X Band Radar Yes
K Band Radar Yes
KA Photo Radar Yes
KA Wideband Radar Yes
Laser 360 Degree
Pulse Warning Yes
VG-2 Protection Yes
Display & Alerts
Dimmer Yes
Dark Mode Yes
Visual Alerts Data
Audible Alerts Tone
Mute Yes
Earphone Jack Yes
Visor Clip No
Straight Cord Yes
Coiled Cord No
Case Included No
Battery Powered No
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research


14-Band Radar/Laser Detection: The Cobra SPX 5300 detects 14 bands of radar and laser, including the Safety Alert System:

  • Radar: (Visual Display--Band + Signal Strength)
    • X band
    • K band
    • Ka band
    • Ku band
    • Pop Radar
  • Laser: (Visual Display--"L" is steady)
    • LTI 20-20
    • LTI Laser
    • Kustom Signals Laser 340
    • Kustom Signals Laser
    • Stalker LIDAR
    • Laser Atlanta Speedlaser/Kustom Signals-ProLaser II
  • Safety Alert Traffic Warning System: (Visual Display--"S" is steady)
    • Emergency Vehicles, Road Hazards, Trains
  • VG-2 and Spectre I or IV+ (Radar Detector Detectors): (Visual Display--see below)
    • Interceptor VG-2 (V is steady)
    • Spectre I or IV+ (V blinks)

XRS Technology: The SPX 5300 is equipped with Xtreme Range Superheterodyne Technology, with super-fast lock-on detection circuitry, to provide extra detection range, and the best possible advance warning to even the fastest radar guns.

UltraBright Data Display: The SPX 5300 is equipped with the UltraBright Data Display, an easy-to-read display that provides easy recognition of the band detected by using band identification icons. You can adjust the intensity of the display using the top mounted "Dim" button. The detector has a Bright display mode for daytime driving, Dim for dusk driving, and Dark where no visual alerts will be displayed.

Instant On/Pop Mode Alert: The Pop Mode Radar Gun is a single-pulse Doppler radar that is a feature of a K and Ka band (Bee III radar gun) Instant-On radar gun. It uses a single, short-time pulse to measure the target vehicle's speed. The SPX 5300 can sense Pop radar signals beyond the effective range of Pop radar guns, and will alert you with two beeps and two flashes of the "P" indicator. During the alert, the unit will continue to detect other signals.

Safety Alert: The Cobra SPX 5300 will give you advanced alert of the presence and/or approach of emergency vehicles, trains, and road hazards from systems equipped with Safety Alert Traffic Warning System transmitters.

Visual Alerts: The display includes the type of signals detected and a numeric indication of the signal strength from 1 (weakest) to 5 (strongest).

Audio Alerts: The unit will sound alerts and confirm user settings with an audible tone alert. A distinctly different tone is used for each type of signal detected, and with radar bands, the tones will repeat faster as you approach the signal source.

LaserEye: The top-mounted LaserEye provides you with 360° degree detection of laser signals. When mounting the unit, you much make sure the LaserEye has a clear view to the front and rear of the vehicle.

VG-2/Spectre I/IV+ Protection: The SPX 5300 will alert you when VG-2, Spectre I and IV+ radar detector detection (RDD) is in use near your vehicle. The unit is undetectable by VG-2 and Spectre I devices, but can be spotted by Spectre IV+ RDDs. During an alert, the unit continues to detect other signals. You can choose whether or not you want the unit to show VG-2 and Spectre I and IV+ alerts and whether or not to sound audible alerts.

Auto/Manual Muting: When Auto Mute is On, the unit automatically reduces the audio volume of all alerts after they have sounded for four seconds. The signals will remain muted for as long as the signal is detected. When manually muting, you must press the Mute button while a signal is being received. This will reduce the volume of the alert in progress. The volume will return to normal for the next signal.

IntelliMute: IntelliMute allows you to avoid alerts you don't need to hear because you are either stopped or moving slowly. By sensing the RPMs of the engine, IntelliMute knows that you are driving at a low speed and automatically mutes all alerts (except for strobe signals from emergency vehicles). You must first set an activation point for your engine's RPMs, and when the revs go below that point, IntelliMute begins muting. Once set, the activation point is stored in memory.

IntelliMute Pro: IntelliMute Pro prevents detection by radar detector detectors (RDDs), such as VG-2, Spectre I and Spectre IV+, when traveling at slower speeds. When IntelliMute Pro is on, and engine RPMs are below the IntelliMute Pro's activation point, the detector's radar detection circuits are turned off to prevent detection by RDDs. In addition, no alerts will be given at RPMs below the activation point.

External Speaker Jack: You can connect an external speaker or earphone if the detector is to be used in an environment with high ambient noise levels. A 2.5mm sub-mini jack is provided.

Mounting: You will get optimum performance from the detector if you mount it at a point approximately in the center of the vehicle, as low as possible on the front windshield without obstructing the view of the road to the front or rear. The detector can be mounted in two ways:

  • Dashboard Mount: Using the supplied hook-and-loop pad, you can attach the detector to the dashboard.
  • Windshield Mount: The supplied windshield mount adheres the detector to the windshield with two suction cups. The angle can be adjusted for best visibility.

Our Product Research Team

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Q & A

Customer Q&A

1 question already asked

Not that we've found, no. Radar and laser signals will pass through glass without issue but things like wiper blades, mirrored sun screens, and dark glass tinting will affect performance. I hope that helps! [ Ryan  Nov 06, 2015 ]  Staff