Between the F44 and the F22 using the same detecting mode and same coil, you would not see any difference. The F44 has more features and settings. Personally, I have owned the F44, Simplex and still own the Vanquish 440. I would much rather hunt with the Simplex or Vanquish 440 than the F44. Target ID accuracy, stability, depth and overall features are better than the F44. The Vanquish 440s simultaneous multi frequency operation makes it much better in higher mineralization and at saltwater beaches too.