Nobody mentioned XOSS, I just bought it but didn't put it to test yet. There is one satisfied user though on this thread here on post
#68 :
https://www.bikeforums.net/general-c...my-mind-3.html
I bought XOSS G+ computer bundled with one sensor and armband for heart rate, ordered second sensor to complete the package. Each sensor can be configured for either cadence or speed.