If you are a coinshooter, I think the Etrac has a bit of an edge with simple basic changes.
However if you like making adjustments the V3i is no slouch. I believe the Etrac false more and I definitely dig more trash with the Etrac. Less than 6-7 inches the V3i will definitely I'd iron better to eliminate digging trash.
If you are into other non ferrous metals and a relic hunter,
AND IF you like to mess with settings, I'd suggest the V3i, it also does an phenomenal job distinguishing between nickels and pull tabs.
First tell us how technical you are and what type of detecting you do.
Also, my Etrac is for sale
not because it's not a great coin hunter, just too similar to my 3030
Do the v3i not the vx3