I'm using bar end mirrors on both bikes. Big enough vibration's not a problem, and since I acquired one of TREK'S CarBack radar devices I get rearward feedback in much greater depth than with a mirror alone. Now they're used just to confirm proximity & scale, something the CarBack doesn't provide.

If Garmin's Varia (or similar) provides real-time video info to a front-mounted display (as would something like a GoPro) I'm unaware of it. That would negate having a mirror as well as removing the distraction of looking away from forward path.

My handlebar end mounted Myrricle mirror doesn't vibrate in any noticeable way.
I use it just like the side mirror on a car, quick glance at it once in a while to keep track of what's going on behind.
I don't have drop bars, though. Don't how it'd fit on those. And I run 2" tires which must help.

I found on my drop bar bikes larger mirrors like the Hafny large round one vibrate more and it harder to see cars. The smaller oval mirrors like the M wave spy oval work well. I used a CLHMY&Z small round flip down mirror. Tiny but worked well but the plastic pivot broke folding it out after wire a bit of use.

I have a Varia radar I use too with the mirrors.

I primarily rely on my Varia radar unit, but I also have a Hafny Bar-end Mirror installed. Prior to getting the Varia unit, I relied on a Hafny mirror. When I got the Varia, the Hafny was already installed, so I just left it. Since then, and 3 bikes later, I continue to use both. If I was forced to have one or the other, though, the Varia would be my easy choice. I will not ride without it.

Helmet mirror for me. (Unless I’m riding in the woods on FS gravel.) On the road I would not leave home without out it. It’s more indispensable than a water bottle IMO. I watch every car approaching from the rear, always ready to hit the ditch. It’s the most important piece of safety gear a person can ride with, again, IMO.

And I couldn’t care less what anyone else thinks.

I have a Myrricle on my bike. It has drop bars and 23 mm tires that I run at 90/100 psi. Vibration is not an issue. The plastic mirrors with flexible mounts do vibrate too much for my taste, and I found glasses or helmet mount mirrors distracting. I use it for "situational awareness", I look at it much more often than I would look back. I do check with a look under my arm before moving left. I feel naked when riding a bike without a mirror.

mine does not.

do we think there's a possibility of that gouging your eye out if you happen to dump?

good grief . . .

me likey

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