I have the anfibio multi and my brother has the nox 800! Don’t sleep on the anfibio cause it’s not true multi frequency the machine is as deep as the nox and with the combination of concentric couple along with smaller dd coils it’s an amazing machine in iron infested sites. Have heard multiple times the anfibio outperforms in higher mineralized soil and I’ve got a couple instances myself! Every site I’ve hit had been pounded every direction my se pro, etrac, mx5, safari, mxt pro stock coil and sharpshooter coil, found 30+ nonferrous targets these have missed!! My brother gridded off a section of one field and pulled a couple goodies with the nox and after that we switched he didn’t pull any nonferrous targets that I missed and when I hit his section I found a few buttons and a liberty cap lc (on edge) and a pewter cap gun all solid signals not saying the anfibio is better in all occasions If your doing a lot of beach hunting go with the nox but non saltwater the anfibio loves its coins and and relics and this is comining from a minelab only guy up to this point!! If your looking for turn on and go productivity without the willingness to Lear the detector nox800 but if your looking to finely tune every setting on the detector go with the anfibio just my 2 cents but I have seen both perform in the wild on non mild and hot ground (hot rocks high mineralization) the nox is HYPED while the anfibio is a bit of a sleeper not too big of a fan of 3 tone mode though not very deep at all