Still a little old school, have not upgraded to wifi or a phone app, but I have had two BBQ guru units since 2004. The first one was the original design, and I just think it was not meant to last over 10 years but I had it for 11 years before it just wore out.
I am now using the digiQ, but not too happy with its design over the first one I had.
That said, I have found the digiQ is not reading the proper meat temp because I have probed my meat separately because I could not believe what the digiQ was telling me. I was right.
So, this digiQ is now a couple of years old and now that smoking is more mainstream, after this putters out, I will be looking at the ones suggested here. Just my .02 cents.