I found a Sigma (Germany) that I think is the "cat's-meow" for the $$.
I got it for under $30 and it has: auto wheel size detect, low battery indicator, backup pre-settings, and can be programed for 2 different wheel sizes!!, has a quick release twist to take w/ me, trip distance (for each ride), total distance, trip time, total time, CLOCK (I use all the time), speed, and avg. speed.

It is NOT wireless.