Customer Ratings & Reviews

This Cobra radar detector is a full featured bargain. I have been out of the radar detector game for a while but I never would have stopped using one if the one I had could do everything the RAD 490i does. DESIGN: It looks like most radar detectors, a sleek black plastic box with a cable coming out of it. This one is a bit different than what I am used to though because it is USB-C which is fantastic because it is the most universal way to connect power to any device. Pretty much everyone has a laptop, phone, tablet, razor, monitor, mouse, keyboard or a hundred other devices that charge, are powered by, or otherwise connected via USB-C. This means everyone has a spare cable or twenty. No more proprietary cables and you are also not limited to a 12v port in your car to power it. Most new cars have USB-C connections and most that don’t have the older USB-A. It also uses an OLED display which is really easy to see even on the sunny days I’ve used it for the past week and a half. I’m not sure if I love the mount for it. On one hand it is great because you can easily remove the RAD 490i from the mount but the mount has 3M permanent adhesive. That means it will stay where you put it but also means you need to make sure it is perfectly level when you install it. If you’re a bit OCD like me it will really bother you if it is not level. I wish there was an option for the old suction cups or a 3M removable adhesive. USE: As I mentioned, I’ve used this for about a week and a half and I really like it so far. I thought using the menus to adjust settings was going to be difficult but it was actually quite easy. The volume is quick to adjust since they kept the dial! I love the dial because that is probably the adjustment I make the most while driving and it is simple to operate. It’s the only dial and you know exactly what you are doing without looking at it. There are three different levels for detection as well. This is nice because if you are in a city setting it may go off all the time so you can adjust it to be less sensitive to non-police radar it may pick up The app adds a whole new element to radar detectors. Using the app in Android Auto or CarPlay is awesome. It’s kind of like Waze for Radar! The app is also very easy to use. Overall I could not ask for a better radar detector. I’m also not sure what I would do with more features. I absolutely recommend this for anyone new to radar detectors or for those that just want something simple that works well.

Back in 2012, I purchased my first Cobra radar detector. Back then, cars didn't have the sophisticated blind-spot detection, lane-assist, and adaptive cruise control systems they do now. Today, the RF environment is incredibly jammed—modern cars constantly trigger false alerts. To correctly use the Cobra RAD 490i, you need to educate yourself on radar bands and how police speed devices actually work. You have to learn how much reaction time you actually have once a signal is detected. Be warned: if you catch a laser signal and you are speeding, you are pretty much done. Laser is highly directional; by the time it triggers the Cobra, you have already been targeted. The Good: It is lightweight, looks stylish, and the new windshield adhesive mount with the static sticker completely avoids accidental detachments. Moving to USB-C is a huge upgrade. Most modern cars have USB outlets now, and using my USB meter, I verified the current draw is low (under 500mA). It’s robust and universal. The Drive Smarter app works well for me, especially since I use it for both my Cobra dash cam and this RAD 490i. Speed traps pull up directly on the screen, and the in-dash smartphone integration is solid, though I did find the Bluetooth connection a bit spottier on one of my mobile devices compared to the other. The Bad: I really expected Cobra to include an onboard GPS chip at this stage. Having internal GPS would allow the device to handle its own low-speed muting and perform GPS lockouts to ignore fixed false alerts (like grocery store automatic doors). Instead, you are entirely reliant on your smartphone app to do this heavy lifting. In conclusion: As an introduction to the radar detector world, the RAD 490i is a good start. The features added by your phone essentially boost your Cobra's capabilities. Cobra is a reliable brand—my 2012 model is outdated, but it is still kicking. This is a good device to let you know what is going on around you, but it is not a foolproof ticket preventative device if you want true protection without the hassle of constantly linking your phone.

It’s sort of hard to review a radar detector because you never really know for sure how well it works until you’re in a situation where you needed it to and then it either did or it didn’t. During my audition of the RAD 490i, I was never laser-checked, but there were a few X-band and K-band speed traps that I WAS alerted to and could later verify; so, in that sense, the early warning the 490i promises definitely delivered. If that’s all you need or really want–or can really afford–then this unit is probably going to do you VERY well. And given that the asking price puts the 490i very near the low-end of the pricing tiers available for Cobra and its competitors, I’d say you get a pretty good value for your dollar–just don’t expect it to WOW you with looks or extra features. The unit itself is small enough so that it doesn’t take up a huge amount of windshield space once it’s mounted. Strangely, Cobra chose to ONLY include a permanent, 3M adhesive window-mount in the box, which means you’d better measure several times before placing it, lest you finally get it on the window and realize you’ve got it tilted just a tad to the left or right. For some people, that probably wouldn’t even be an issue; but for someone with OCD-level obsession over having everything in JUST the right place, I would imagine this would be a little irksome (it would have been for me). I bought a cheap suction mount online so that I wouldn’t have to deal with finding the ideal mounting point and then committing myself to that location forever (or until I destroyed the existing adhesive and bought some new 3M adhesive), and so that it was a lot easier to move the detector from one vehicle to another. The unit has a USB-C port and comes with a low-profile 12V USB-C plug-in adapter and a fairly long USB-C to USB-C cable for connection. The cable itself will likely be enough for you to place the detector anywhere on the windshield you want, but having a coiled cable would have been appreciated to help keep all that extra cable from dangling down into my center console or flopping into the passenger seat. You can use the 12V adapter or plug the detector directly into the head unit of your vehicle if you have a USB-C data or charging port. The type of USB-C connection (charge or data) doesn’t really matter because it’s only used for powering the detector anyway. The marketing materials indicate that the 490i is CarPlay/Android Auto enabled–and that is true in a manner of speaking. It’s not that the 490i works DIRECTLY with your vehicle’s CarPlay (or Android Auto, I would assume). Instead, it integrates with the Drive Smarter app which DOES speak directly to the vehicle. Once you have Drive Smarter installed on your phone, it syncs via BT to the 490i and reads, speaks, and displays speed and detection information onto your in-dash video screen. It’s definitely a nice feature to have as more and more vehicles are coming equipped with at least one USB port. The only drawback, of course, is that you have to run with Drive Smarter open for the integration to work; this may be an irritant if you routinely use Apple or Google maps to plan your routes or provide in-vehicle navigation. There are a number of options and operational settings you can adjust directly on the unit itself, but the Drive Smarter app not only gives you detection integration, it lets you adjust a multitude of settings on the detector via simple toggles on the phone’s screen which I much preferred to using the awkward 4-button navigation system on the top of the unit itself. When not integrated into your vehicle’s in-dash display, all information is also available on the TINY screen and via audio feedback from the detector itself. The display is nothing to write home about, but Cobra did a good job of keeping it simple, easy to see, and attention-grabbing when you need it to be. In normal operation, the screen is black with high-contrast, easy-to-read white lettering and icons. Even at its brightest, it is much easier on the eyes than the harsh LED displays these devices used to have. Vocal prompts like operating status are spoken rather than communicated via beeps or tones. BUT, when a detection is made, the screen goes from all black to all white, and the detection band, exact frequency, and signal strength is displayed in bigger, high-contrast white block characters and a 5-segment signal strength meter. A spoken voice prompt will also alert you to the band the signal was detected on. I don’t know if the improvement in reaction time would be measurable if the display didn’t change illumination schemes, but it’s a nice departure from the same-old readouts no matter what is happening with the detector. The biggest gripe I have with this particular model is that there are no directional indicators for the detections, so you can never be certain if the signal is oncoming, behind you, or off behind the trees on another road. Given that the 490i is more of a “starter unit” based on the price point, this little omission is probably forgivable, but it’s hard to get used to having a little less situational awareness when you’ve gotten used to another detector that does provide such information. We also have a pricey dashcam-radar detector combo unit. Driving with them both running, they both went off at roughly the same time and squawked at the same false positives due to storefront doors and vehicle avoidance signals; but overall, their performance seemed fairly comparable. If you are on a bit of a tight budget, the Cobra RAD 490i is definitely a solid choice for detecting radar and laser speed measurement signals early enough to avoid the cop at the other end–and as long as you aren’t looking for it to do much else, you’ll probably be pretty happy with it. Recommended.

I have used several radar detectors over several decades, dating back to the 70s. Cobra has always been a strong competitor in this field and this latest offering, the RAD 490i Radar and Laser Detector, is a good example why. However, this radar detector is not perfect. I’ll start with the shortcomings. The biggest shortcoming is the lack of any GPS to remember where the false alarms are located. I read that Cobra decided to not include it on this model in order to keep the cost down. I find having to deal with the same false alarms a bit annoying. My next complaint is that you have to use the Extreme Sensitivity to really get good advance warning of radar in patrol cars. Several times I physically noticed the police vehicle prior to the alarm going off. In my first week of use, only once was I truly alerted to radar I did not see or expect. It can be said that the one time alone pays for the unit - I won’t argue with that. The last negative is that the mounting tape they provided does not hold the weight of the unit. Where and how to mount a radar detector , especially one you prefer to take down and hide when not driving, remains a decades-old challenge. On the positive side, it does what it is supposed to do - alert a driver to the presence of radar or laser, whether it be from a speed gun or possibly an alarm system or other source. For the price point and - very important - my device included the subscription to the Drive Smarter app - avoiding one speeding ticket will probably pay for the device given the cost of fines nowadays. One last note, I would not consider an option which required me to pay to subscribe to the Drive Smarter app. Overall, it is a good radar detector, but as with most devices of this type, you will most likely have to put up with false alarms and an occasional failure to detect in time to avoid a fine, which prevents me from giving it 5 stars.

Setup was very quick. Plug into USB C or 12v car adapter, download the Drive Smarter app and add the detector to it. That’s it. Worked well with the default settings. It did go off quite a bit in town - likely some false positives from business alarms etc. I’ll probably play with using less sensitive settings when using in town, but mostly plan to use on highway driving. Highway driving works well. Only had one long road trip so far with it, but Feel like I always got alerted before I saw the cop. Once I saw 2 cops side by side on highway median but didn’t go off. Assuming they didn’t have their radar on. The drive smart app is easy to use and easily accessible in CarPlay. While you can do directions in the app I still prefer other mapping apps as this app doesn’t allow more than one destination/stop to be entered. The crowd source feature is nice to have but I don’t like taking my hands off the wheel to log incidents or police etc. Has loads of different detection types of laser, radar, bands, etc. The mute button is handy for silencing the alert until you’re past it. Note that speed signs that show your speed set it off, but makes sense as they re using radar. I like the non distracting minimalist cylon light that cycles back and forth and isn’t bright while it’s in its normal waiting to detect mode. The only con I’ll note is that it only comes with a sticking tape mount. It has a square electrostatic sheet that you can apply to windshield so that removal is easy, but we regularly drive through Virginia where these aren’t allowed and prefer a suction windshield mount to take down and put back up easily as needed. Fortunately they are inexpensive to add and many in the market that are compatible with the cobra line quick connector. Time will tell on detecting radar traps from a distance, but so far easy to use and setup.

The last time I used a radar detector was the mid-1990's. It wasn't a great experience. Did it work? Mostly. Did it register every electric door, cell phone tower, and other RF emitter in the area as well? All the time. I gave up after it became too hard to differentiate the real alerts from the false ones. I haven't touched one in 30 years because of that experience. Recently though I find myself taking regular 150 mile (each way) highway drives between the two houses I own in CO and WY. These are on long stretches of interstate highways where speeds can climb and police lurk behind every hill. After a few scares, I decided trying out the latest technology may be worth a shot. The Cobra RAD 490i radar and laser detector is on the lower end of the wide price scale for detectors. Some upper end units push the $800 range and have more features than I'd ever use. I just needed something simple and effective. The 490i hit the right spot, simple in operation but with some advanced features. Setup of the unit was simple. Plug it in, make some setting adjustments if you want, mount it on your windshield, and go. I didn't try to get fancy and hardware it to my car as I want to move it between vehicles when necessary. It plugs into the USB-C outlet on my dash. It comes with a USB-C cable, USB-C to USB-A converter, and a USB-C to 12V cigarette lighter adapter. I appreciated the USB-C interface as my car doesn't have the 12V outlet most detectors require. It comes with a mount that has 3M tape backing. You can mount it permanently or attach the mount to the transparent window cling included in the box. I used the later. You can connent the unit to the Cobra Drive Smarter App if you want to as well. I loaded the app to try it out, but did not really use it much. The app will allow you to change some settings on the unit (most of which can be changed on the unit itself), gives you map turn by turn directions along with your current location and speed. There is a subscription that allows you to have access to a community database of speed cameras, police locations from other detectors, and lists posted speed limits. It's $5/month after the free trial. Most of these functions my car or phone navigation already does for me and the Community features rely on people manually marking locations for it to work. I know I wouldn't take the time to mark locations while driving, so I figured that wasn't going to be useful. The App is also CarPlay compatible. Honestly, other than the initial setup, I ignored the app completely and won't be signing up for another subscription. I took a road trip between my houses, 300 miles round trip, to test the unit out. It worked well. False alerts were minimal although not completely eliminated (it really goes nuts when driving past Walmarts for some reason). I got a few alerts in the middle of nowhere for no apparent reason, but it was drastically improved over my previous experiences. I saw two speed traps on my drive and the unut it trigger a mile or so before coming across hte police car (both K band signals), so it seems to work fo rit's intended function on the highway. The only adjustment I had to make was to turn off the voice function. After 30 minutes my wife threateded to jump out of the car if she had to listen to it one more time. In town, the alerts were a lot more common and I never saw a police car. I ended up not using it in city driving. There was just too many triggers. On the highway through, it was great. I've enjoyed using the 490i. It seems to do the job on the highway where I needed the help and speeding was more likely. The unit is solid with lots of options in the settings. It's easy to adjust. The mount works great and it's quick release is a nice feature. I've since bought a suction cup mount to make moving it between cars easier. Downsides are it does trigger a lot in town and it asks you to use another app with subscription. My recommendation is to buy the unit and ignore the app.

I want to start off my honest review by making it abundantly clear that I am no racer or Need for Speed driver. I am honestly just a guy who drives an older, lifted Tacoma and commutes to work every day on the same roads in a town of about 86,000 people. However, we are ridiculously oversaturated with the most uptight law enforcement officers this side of the Rocky Mountains, and I am certain that some rule must be continuously violated by them, given the number of random speed traps, speed vans, and cameras they have been putting up relative to the population in my area. Unlike some more permissive states, these traffic enforcement cops are literally pulling people over for going less than 5 or 8 miles per hour over the speed limit, even in non-residential backcountry areas with speed limits of 45 to 55 miles per hour. These are the same speed limits as when the roads were single-lane, poorly paved, with tractors and cattle on them. Now, the same speed limits, but two lanes, more traffic, and way too many speed traps. With all that background, I was extremely excited to get this Cobra RAD 490i Radar and laser detector for my truck. I have it mounted on the dash, and thanks to the handy USB-C power system (a must, in my opinion, for vehicle accessories in 2026), I was able to get this powered up and working with no problems. Now I feel I am truly able to take a more proactive approach on my commutes. I am catching both K and Ka alerts easily on the high-sensitivity setting, and, again, while I am no racer, I do sometimes go a little faster than the signs may indicate when I have no one around me on dry roads. The peace of mind I have now with this system cannot be understated. I really like the easy-to-see OLED screen that has a little status bar flashing back and forth while idle and powered on, so at a quick glance, I can tell that this is powered on and working. I respect how sensitive this detector is because I am also picking up modern vehicles' blind-spot monitoring radar signals (usually K alerts). I would turn this setting off, but because there are still speed traps and cameras that use K band radar, so I am leaving it on for now. I do love the auto-mute function that, after the initial loud alert tones, reduces the volume of the ongoing alert so I don’t have to reach over and manually mute it while I have my hands on the wheel. Altogether, I have no criticisms to offer. This detector is doing exactly what it is advertised to do and I have already been able to slow down a few times in some corners where a patrol car or speed trap van just happens to have set up out of eyeshot from a distance. I would recommend you look into this detector and compare it to other Cobra offerings in the lineup, but this one was simple enough even for a novice like me to set up. Thanks for reading and I hope it helps!

I recently started using the Cobra RAD 490i Radar & Laser Detector as I spend a decent amount of time on the road and want an additional layer of protection. I haven't used a radar detector in years and was a bit sceptical if it would be worth the investment. It proved its worth on the very first road trip! Previous detectors I had used were decent in providing alerts for the road ahead, but the rear of the vehicle seemed to always be an afterthought. With the RAD 490i's front and rear LIDAR, they make sure there are alerts ahead...and creeping up from the rear! I was on a highway driving the speed limit and an alert went off so I kept an eye out for a trap up ahead...well it turns out there was an unmarked vehicle coming up from behind that had used laser to check my speed. The rear alert was very timely and impressive! Set Up: The RAD 490i is ready to be installed straight out of the box, so it's simple to connect and get going for anyone. It includes a mounting bracket, cigarette lighter adapter, USB-C cable, static cling disk for easy mounting and the radar detector. There are adjustments for sensitivity, display brightness and volume. Simply mount it where you want it, plug in the cable and you're ready to hit the road. Real World Usage: The RAD 490i is very low profile and does not distract while driving. Everything is black which matches my car interiro really well and keeps it less conspicuous. The unit can quickly be removed from the mounting bracket with the push of a button so it can be hidden out of sight while the car is parked. One of the feartures that was a real improvment over older models I've used is the voice alert added to the alerts. The voice is easy to hear and understand even with the windows rolled down or in a louder cabin environment. Additionally, the integration with the Drive Smarter community is a great feature that steps up the 490i's value in my opinion. I've always been a big fan of the crowd sharing approach, so this is a nice addition to the radar detector environment. Pros: - Low-profile design and easy to install in any vehicle - Easy setup and good adjustability - Real world proven Rear LIDAR detection - App integration with the Drive Smarter community - Addition of voice alerts to the warning system - USB-C cable so no need for a proprietary power cord Overall I'm very impressed with the RAD 490i's features and real world capabilites and would certainly recommend it to anyone looking to add an additional layer of security on the go.

This is my first radar detector as I use to live in the only state in the country they’re illegal,VA! So recently relocating to Texas I was finally able to get one and hopefully not get anymore tickets! Unboxing, in addition to the detector you get a USB-C cable and a 12v USB-C cigarette adapter, windshield mount and transparent mounting film. Cobra also offers an optional mount for rear view mirror mounting and a hardwire kit. The Cobra drive smarter app allows you to control and change the features of the detector which makes operating it much easier. There’s also a CarPlay version so if you have CarPlay or Android auto, you can use it instead of their navigation apps. It’s one thing to have an app, it’s another thing for it to be good and the drive smarter app is good feature wise and how well it works with the detector. Being that it’s my first detector I can’t compare it to other radar detectors, but the features and the ease of use more than satisfy me. If you’re in the market for a radar detector that gives you protection front and back, has CarPlay and Android auto functionality and is easy to operate, the 490i is a great choice.

The Cobra RAD 490i exceeded my expectations, outperforming the Escort MAX 3 I reviewed five years ago. Both are made by Cedar, but the newer RAD 490i does a better job discriminating between noise and authentic police radar signals. Both with latest firmware. More on that later. The unit feels well made and was easy to set up. I like that it has a combination thumbwheel volume and power switch in one on the side. Old fashioned but easy to use. The monochrome OLED display is bright enough to see in the daytime and dims down to a level that’s easy on your eyes at night. It’s easy to read, shows signal strength, microwave radar bands detected, and other information. It usually only shows a white block scanning bar on a black background until it picks up something. Then it shows what it’s picked up, sounds an alarm, and a voice tells you what it is. There are options to mute those features or disable the display. Power is provided via a USB-C port. I really like that. They include a small 12-volt adapter and USB-C cable to connect the detector to power. If your vehicle has a USB port, you can use that as well. Mounting it to the windshield is done via double-sided 3M tape. That’s fine if you plan on using it exclusively in one vehicle but not if you need to use it in multiple vehicles, like rentals. You can get an optional suction cup mount for that. I mounted mine beside the rearview mirror, high enough for good range but low enough for the laser detector to work. It works great with the app, but you have to register it to use the app. The app adds GPS from your phone, also, maps, red-light and speed-camera alerts, accident and police location alerts, and lets you tag radar door openers and security systems so it will ignore them. You must use the app to get these features. The Escort MAX 3 has built-in GPS, so it doesn’t need the app for most of that, but both use the same app for real-time alerts. Our vehicles do not have Apple CarPlay & Android Auto, not able to test that. Two-vehicle test: My wife and I drove through a couple of local towns and rural areas where she followed closely behind me. We stayed in touch on our phones with Bluetooth headsets. The MAX 3 was mounted high on the windshield in her CR-V with the stick suction cup mount. We drove past areas with radar door openers, malls, grocery stores, and security systems. I had the RAD 490i set to high sensitivity, and it rarely went off for door openers unless we were right up on them. The MAX 3 was set to Auto and never missed a single door opener. That tells me the RAD 490i filters out door openers and security systems better than the MAX 3. We passed several police cars and roadside speed signs. Both detectors went off at the same time and at the same levels for all legitimate radar signals. No Pops and no laser detected on that trip. Single-vehicle test: I removed the MAX 3 from the CR-V and was going to mount it on my Ridgeline’s windshield as far away from the RAD 490i as I could. The suction mount broke, rubber came apart, when I removed it, so I placed the MAX 3 on the passenger seat and lowered the headrest to hold it, then raised the seat tilted up for maximum height. The head rest covered the rear laser detector and ruled its use out. I drove the same route and got similar results, but there were exceptions caused by the detectors being only about three feet apart. Every so often the MAX 3 would get full-scale Pop alerts while the RAD didn’t go off at all. The MAX would also get phantom alerts at random. That didn’t surprise me because running radar detectors together causes crosstalk interference. The circuitry inside them generates RF signals that they can pick up at extremely close range. The RAD seems able to distinguish that from legitimate radar. No surprise, it’s over five years newer. Comparison summary: RAD 490i: USB-C power, adhesive mount, app adds GPS, filters noise better, newer design. MAX 3: Built-in GPS, suction mount, same app, more false alerts, older design. Conclusion: For the price and performance, you can’t go wrong with the RAD 490i. It performed better than the older Escort MAX 3 at filtering out noise-type signals and matched it on legitimate radar detection. The MAX 3 wins with its built-in GPS, but it costs over twice as much. Both work with the same app. The only drawback for some may be the adhesive mount instead of suction cup. Recommended.

 Radar detectors had their good sides and bad sides, but this is one of the best ones I’ve used that’s one of the more accurate and simple ones. It’s  programming allows it to remember where supermarkets and red light cameras in touch are so it will remind you, but you can turn those stationary ones off so the ones that you’re really looking for are the ones that you get alerted for which I think is one of the great features in this I didn’t get a really weird alert one time and I assume it was a drone however I don’t remember what came across the screen, but it was really loud. I got your attention and made me aware of my surroundings it also let me know when I’m entering a school zone and they have those you’re going this fast sign which is cool too because that way you’re not caught speeding in a school zone. It’s really useful device. It’s really easy to get to learn how to use. This is the second time I purchased one, although the last one I bought it from Amazon and I’m like this one I got from Best Buy and twice as happy with this one probably

It works well. If police is near by it can tell. Also cameras. It works well for the price .

490i is solid for the money. Not the best accuracy or range (especially for Ka Band), but it works. In the price range, you can't get much better.

So far so good. Something don’t worry about so that’s a good thing.

Very great item when driving at night it lets you know if theres a police around you

I like it on the low setting but you do get a lot of false alerts unfortunately

Can’t fix a printer without geek squad coming to the house.

I got i700 i think this 490 is alot better so save some money

Item works as expected and tracks all the cops in our area. Worth the buy

I took a 350 mile trip and noticed that my radar went off more thru construction areas than anything. I had to be right up on top of law enforcement for it to go off.