
I don't know how many heart rate monitor straps I've owned over the decades, but the interval of replacement is getting longer as the durability improves. This design looks like it should last longer than the previous one. The clasp design seems the same, but they moved the 'skin protection tab' to the opposite end of the strap. So far it hasn't shown any tendency to come unhooked on it's own, which I found to be an issue with my previous one. They have also simplified the length adjustment, there is now only one adjustment loop instead of two which makes it much easier to get right.

Has an older strap that died on me. I couldn't find that model but still needed one for indoor biking. I paired it easily but the app showed connected without showing the data. I tried all kinds of things and the instructions weren't really great. I asked Gemini and it immediately told me to try the button on it to change modes since different devices need different modes. Would have been so much easier if the HRM would donut automatically or the HRM would switch modes automatically. Just an annoyance since this is a one time thing unless you connect it to different devices that need different modes.
Anyway I would prefer a simple one that just works and I also noted that this HRM need to be more moist than the previous one I had and it stopped working on e 20 mins into a workout.
Not sure there is a better one out there but in case you don't swear much like me or the default mode doesn't work for you

I've always used a small bag under my seat, with a light below that, but I was worried the bag and/or rear tire would get in the way of the Varia I got recently.
With this kit, I'm able to keep my bag, and the radar/light gets mounted at the back of my set, behind my bag. I've had no issues with visibility or not picking up traffic behind me because it puts the radar at a good height without anything to get in the way. And, I get to keep using my bag.
If you have a bag that goes to about the rear of your seat, you're probably good to go with this kit. If you have something that extends to the rear a bit more, I'm thinking of bike packing bags or something like that, then you're probably going to need to figure something else out.

A bit more expensive but damn high quality. Love the 3d printed titanium. It looks so much nicer than Enves stock offering and has no branding which I prefer. Super light and typical Silca quality of execution.