If you just want the capabilities of an old-school cyclocomputer (no GPS, no granular recording of data for later analysis), then you might consider the Bontrager RIDEtime Elite.
That works with ANT+ sensors, so you can get what you want (or not) for speed/distance, cadence, and heart rate. If you just wanted speed/distance, you could use the Garmin Speed Sensor 2 (or some cheaper sensor that works similarly).
Communication with sensors has been fine for mine; no problems with the LED headlight that I am running.
Full disclosure: I have not checked to see if there is a lower limit for the tire circumference on the RIDEtime Elite. I have a spare one on hand, so it would be an easy enough thing for me to check.
Last edited by John Valuk; 01-07-22 at 02:45 PM.