The
Thermapen is faster than the
ThermoPop, but the
ThermoPop has a much thinner probe needle.
I have both & use the
ThermoPop more often, it's real good for measuring the IT of ribs, where you need to get between the bones & get an accurate reading. It takes about 2-3 seconds to read. The
Thermapen takes about 1 second. As for accuracy, they both are very accurate, but you get a certificate with the
Thermapen that guarantees it's accuracy.
Al