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Uniden

Uniden R4W (New Model) Extreme Long-Range Laser/Radar Detector, Record Shattering Performance, 360° Awareness, Built-in GPS, Wi-Fi, Bluetooth, Voice Alerts, Red Light & Speed Cameras, R/TACH App

  • Based on 8 reviews
Condition: New
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$429.99 Why this price?
4th of July Sale · 34% off was $649.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jul 7
Order within 21 hours and 42 minutes
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Features

  • The new R4w continues Unidens tradition of leading innovation. featuring Extreme Long-Range Record Shattering Performance, Blackfin DSP (Digital Signal Processor), with visual and voice alerts on an color OLED display. Also, Wi-Fi, Bluetooth, GPS, R/TACH app support, and our Speed and Red-Light database included.
  • BUILT-IN GPS WITH AUTO MUTE MEMORY - The R4w can remember and automatically mute false alerts (such as retail store door alarm), along your routes so you never have to listen to the same false alert twice.
  • MULTI-COLOR OLED DISPLAY - An easy-to-read display allows for more useful information to be displayed at once, improving your overall situational awareness.
  • VOICE ALERTS - Voice alerts provide clear communication allowing for hands-free operation. Voice alerts are programmable to fit your style so you can keep your eyes on the road with no distractions.
  • ADVANCED K/KA BAND FILTERING - The R4w has the best K/KA Band filtering resulting in fewer false alerts from blind-spot monitoring and collision avoidance systems.

Description

The R4w radar/laser detector continues Uniden’s tradition of leading innovation. Featuring extreme long-range performance, a Blackfin® DSP (Digital Signal Processor), and visual and voice alerts on an OLED display. Also, Wi- Fi, Bluetooth, GPS, R/TACH app support, and our speed and red-light database, etc. With our exclusive proprietary technology, the R4W number one feature is unparalleled performance. Also, the R4w features Auto Learn which greatly reduces false alerts over time giving you the quietest ride. When you need the best, and none of the fluff, Uniden’s R4w puts you miles ahead.

Brand: Uniden


Compatible Devices: iPhone, Smartphone


Power Source: Corded Electric


Display Type: OLED


Voltage: 12 Volts (DC)


Product Dimensions: 4.5"L x 2.8"W x 1.1"H


UPC:


Product Dimensions: 4.5 x 2.8 x 1.1 inches


Item Weight: 1.94 pounds


Item model number: R4w


Other display features: Wireless


Manufacturer: Uniden


Country of Origin: Korea, Republic of


Date First Available: April 1, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Best non directional radar detector at any price.
At first glance, it’s lot smaller in real life than in pictures. The screen is crisp and bright. You have to turn up the volume to 7 or higher otherwise it’s too quiet. The power cord is finally on the right side or the correct size. WiFi updates are quick and easy. There’s so many settings to keep most enthusiasts happy. This is by far the longest range radar detector. You’ll also learn the name of the laser gun when you get your first ticket. Initial setup is a little wonky. The latest version of Mac OS doesn’t work for firmware update. Even if you’re successful installing it and you will need an update to get all your photo radars as well as additional K block frequencies. In order to enable WiFi you will need to pair Bluetooth. You can’t search for Bluetooth using your phone. You need to download R/TACH from the App Store. Once you pair Bluetooth using the App and set up your WiFi, it’s a breeze. Downloading firmware and database is super quick, painless and fast. ... show more
Reviewed in the United States on May 4, 2025 by JJ
    • Worth it!!
Great radar detector! Its reliable, durable, can hear it over loud music. I also have my dash cam plugged into the usb port of its power cord, and both devices work perfectly sharing the power source. Only time this radar detector doesn't work is when going thru this one area while on the highway, a certain police unit turns their radars off and clocks people!! 😂😒 There have been SEVERAL times the Ka band was going off and I'm looking like "where is this cop" for what seems like a while, and eventually I see them. Definitely long enough range for a suitable warning!! And it sure does pick up everything: speed cameras, those speed radar signs, traffic light cameras, etc. It's really easy to hit "mute" for these things, and it automatically does a "mute memory" so u don't have to listen to it every time passing the same spot. It is also easy to remove mute memory by hitting "mute" again the next time you. I was actually intimidated by the manual and all the settings at first. However, I've left it on the default "highway" and it's all good. All I ever needed to touch is volume buttons and mute/dim button, which were easy enough to learn just by simply pressing them. And also going into menu to set up wifi/bt if u install the app, which wasn't that bad, just a lot of scrolling to the actual setting. ... show more
Reviewed in the United States on May 2, 2025 by Amazing Amazonian
    • Well Worth the Investment
I recently purchased the Uniden RW4 radar detector to replace my over 10-year-old Escort model, and I couldn’t be more impressed. The setup was straightforward, and the device’s features are extensive enough to keep me exploring its capabilities for a while. The RW4 delivers exceptional performance, with advanced filtering and long-range detection that surpasses my expectations. The only minor issue I encountered was registering the radar detector on Uniden’s website. The RW4 isn’t listed yet, so I had to register it as an R4 instead. While this was slightly inconvenient, it didn’t detract from the overall experience. Overall, the RW4 is a fantastic upgrade and well worth the investment. Highly recommended! ... show more
Reviewed in the United States on April 14, 2025 by Michael
    • Worth the money
So worth the money, it is pretty accurate on where the cops are at. I believe it even warns you about speeding cameras as well. I would buy again.
Reviewed in the United States on April 30, 2025 by Crystal R
    • Excellent segmentation set up with plenty of other features
Would highly recommend using the R4 Companion app. This radar detector can be configured to be very quiet alerting you to only when it definitely is a radar gun. Every radar detector has false alerts, but this one has barely any.
Reviewed in the United States on April 22, 2025 by ErikAnthony
    • Great radar detector
Great radar detector
Reviewed in the United States on April 1, 2025 by Stu B.

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