- Brand: Garmin
- Compatible Devices: Smartphones
- Mounting Type: Found in image, Handlebar
- Special Feature: Lightweight
- Vehicle Service Type: Automobile
- Product 1: Pairs seamlessly with your Edge bike computer and compatible smartphone as well as select Garmin wearables or the radar display unit
- Product 1: When used with your compatible smartphone, the Varia app provides graphics — plus tone and vibration alerts — to indicate approaching cars
- Product 1: When used with a compatible smartphone, Varia radar integrates with third-party apps such as Ride with GPS to overlay your maps with rearview radar alerts
- Product 2: Simplified, rugged design with 1.8” display that’s crisp and easy to read in sunlight or low-light conditions
- Product 2: Get training guidance by syncing structured indoor or outdoor workouts to your device from the Garmin Connect app or other apps, including TrainingPeaks and TrainerRoad
- Product 2: Improve your fitness with dynamic performance insights such as VO2 max and heart rate (when paired with a compatible heart rate monitor), and manage your efforts during tough ascents with the ClimbPro feature
- Product 2: Know where you’ve been, where you’re headed and how to get back to start with turn prompts and a breadcrumb map





















Troy A. Miller –
I love this thing.I use mirrors, I listen, etc… but invariably, I STILL miss a car coming up behind me for one reason or another. I had seen these when Garmin released them and thought about it… other friends have them… but I didn’t grab one until catching a nice Prime Day sale this past summer (for $100). I wish I had grabbed one sooner.This unit paired up easily and quickly with my Edge 520 bike computer, and it seems to be spot on accurate. After multiple rides with this, I haven’t had a single false alert, nor has it missed a single vehicle coming up behind me. This adds a HUGE degree of safety to riding. The alert chirps on my 520, and the visual alert on the screen is quite noticeable. You know to get over, and it gives you plenty of time to do it – and it also then lets you know when it’s clear. Good stuff.The only negative thing that I have to say is, I would prefer the model WITH a taillight – but I just can justify an extra ~$70+ for a taillight – perhaps reconsider your pricing structure, Garmin…? (I mean, seriously… I have a perfectly good USB rechargeable LED taillight that I paid like $15 for. Am I just missing something on the Garmin model…? Anyway…)Regardless, as I mentioned above, this thing adds a HUGE degree of safety to riding – and if you ride on a lot of rural county roads (like I do) where traffic is hit and miss, you NEED one of these.
Honest Reviewer –
This thing is great. I won’t even ride now without it. It goes hand in hand with having a mirror. After it beeps you can look in your mirror and decide on how far to move to the right. I ride in the bike lane but not all the way to the right due to glass and other debris. But when a car comes I move as far as I can to the right. I have two negatives however: No usb C, and sometimes it will change the light pattern from what I set it at. I like to have it on flash mode. I have noticed there are a few places I ride that it will disconnect. Maybe a place with a strong Cell tower or other type of interference? It is helpful in mild to moderate traffic. Heavy traffic not so much. Many times I ride at dusk and people do not have their lights on so I can’t see them in my mirror. However the radar sees them from very far away, then I can squeeze over as far as I can. So many bad drivers, drive into the bike lane and do not even pay attention. I have lights everywhere on my bike to help the distracted drivers to see me better.
kaner –
I bought the varia for my road bike. I have used it a bunch of times. It does a really good job picking up traffic from behind. It really improves my awareness about what is going on behind me. I have only used it with the varia app. I really like being able to glance down at my phone (mounted on phone holder on gooseneck) and checking for traffic. This is really cool when there is a car parked in the bike lane of some other obstruction like a trash can. It is also effective when I want to make a left turn. I can look down and quickly see if the coast is clear. It is also really helpful by displaying multiple cars, so I am aware if there are more cars when I hear one coming from behind. The only drawbacks I have experienced is it eats up battery in my phone quickly (I am in need of an upgrade, though). Another thing that is difficult to manage is that sometimes I need to go into the middle of the road due to space limitations on the shoulder. When there is a car behind me going the same speed, it will drop off the display. I assume it thinks the target is another rider. The car only reappears on the display when it overtakes me. Cars definitely see the light, so that is super helpful when riding after work in late fall. Overall, I think the varia improves my awareness significantly and I always will have it going when riding on the road.
Rivendell –
I initially assembled this to my bike’s seat stem, but it only worked inconsistently, sometimes not sensing cars coming up behind me at all… However, when I fixed it to the back of my bike helmet – up high and with no interference, it worked perfectly 100% of the time. I’m amazed how accurate it is, and it signals me of approaching cars sometimes before I even see them in my mirror. Best safety gear I ever purchased for my long bike rides.
Barry –
I always use a mirror on my helmet but this adds additional safety and works well with my Wahoo Elemnt Roam. I had to turn the notification beeps off on my Wahoo though – it just got annoying to here it beep all the time. But I do use the visual lights on the Wahoo and also the Garmin app on the Varia is easy to see. I have my iPhone mounted on the stem of my bike and the Wahoo out front. This attached nicely to my Fizik saddle and still have room for a small saddle bag
BigTangTheory –
Definitely recommend this if you ride frequently on the road which any amount of traffic and have a Garmin bike computer to combo with. It will occasionally pick up other cyclings behind you as vehicles, but it’s better safe than sorry. It has never missed a incoming vehicle from behind. This really helps you focus more on your ride and what’s in front of you. Great battery life. There have been days where I forget to charge it overnight and just by using my cars usb charge and a 30-45 minute drive time to the meet up spot, it was powered throughout my ~3.5 hr ride.
Maiaibing –
Have been very surprised at how super useful the radar function is. It works very well and gives you a much better overview of what’s going on around you as you don’t have to turn your head back nearly as often. Also, even in the very heavy traffic I often ride in, my Garmin shows enough info about the relative distance and speed of approaching cars and motor bikes that I feel a lot better able to gauge the traffic situation around me. Originally I thought I would have it “off” inside the city – but I always have it “on”. Also like how you can set it up for daytime/nighttime strength etc. Never ride without. Some people are worried about the rubber bands that keep the unit into place. Made me worry too. however, I ride some VERY rough roads and also flipped my bike once after being swiped by a car 🙁 -still the Garmin unit is sitting there safe and secure while my water bottles “exploded” around me. Fortunately they’re a lot cheaper to replace. Highly recommended.