There’s no doubt that using a rear-view mirror makes it safer to cycle on public roads. That said, some riders may feel that a bike-mounted mirror is just one more bit of handlebar clutter. One solution is to use a helmet-mounted mirror, although the RearViz mirror offers an alternative – it mounts on the rider’s arm.
The mirror itself is convex, and folds down against the housing when not in use. It can be opened to any angle, and rotated 360 degrees relative to that housing. The whole shebang is mounted on a breathable Velcro armband.
So, why bother? According to one of the company reps we spoke to, a mirror on the rider’s body won’t get shaken around by road vibrations nearly as much as one mounted directly on the bike. Additionally, riders can change the mirror's field of view simply by twisting their arm a little, instead of moving their head or the handlebars.
As for what makes it better than a helmet mirror ... well, that probably comes down to personal preference, although it's possible that it might be a little less cumbersome when the rider is off their bike.
The RearViz mirror is available now in a variety of colors, with pricing starting at US$33.