This is probably a bit off the OP's topic, but I am curious. The OP mentioned a SOLID BODY tenor. Is that like a solid body electric guitar, except that it is a ukulele? It seems to me ther is far more for me to learn about this world of ukuleles than I realized.
As for the OP's question, a tenor ukulele is bigger and as has been said, generally has a bigger sound, longer scale length, etc. However, I have two ukuleles, one a tenor and the other a long neck concert. The concert has a tenor neck. Kamaka offers this as a custom upcharge and I believe other makers do too. This particular concert ukulele is supposed to actually have a body size somewhere between a concert and a tenor. It is said by Kamaka on their site to be "bell shaped". It is sort of like a dreadnaught guitar in that it has a waist, but not as deep as my tenor does. Fortunately, it still works with my Mobius strap though.
So it seems there are all manner of flavors of ukuleles that maybe blur the lines a bit between tenor, concert, and soprano. I don't mean to contradict anything that has been said in this thread, but instead throw in some other possibilities and combinations that various makers seem to offer that cross the lines between the various generally accepted sizes.
...and now I find out that there is a whole other version of ukulele that is solid body.
Tony