Sorry, I will be more clear.. the inaccuracy is that the Smartphone only gets me within 25 ft. of the cache. I can be standing on a known cache I found and the smartphone will say I am still 25 ft. away. sometime 45 ft. plus away. I used it today and if it was not for being easy to see my phone would have had me running around no where close to it.
My wife suggested to buy a dedicated unit again and compare the accuracy