Best thermometer

I had previously charted using one brand of thermometer I don't remember the name sorry. Then I had strep throat and didn't feel comfortable using and purchased a different brand now my temps seem to be pretty high and consistent. This has never been the case for me. Both thermometers have good features one has a light and beeps every second while your taking your temp and the other one has temps in the tenths degree. Question what is your fav and why???