After buying a set of the Fox digi scales, and quickly finding them to read wrong 99% of the time, i would never use any digi scales again or recommend them to anyone.
The big problem with many digi scales, and seeing tests on them, the problem is the battery. Once a battery is used, thats it, you need to put another new battery in, if you dont, your scales will read wrong.
I came across this when there was a weigh in on a match, two sets of scales, both the same make, both digi.
One set weighed an anglers catch over 12lb, the next set over 9lb, a set of rueben 60lb x 1oz calribrated so weighing true, just over 8lb.
I took my Fox scales and we took a weight, on the Fox with a new battery the weight was correct, an old battery, 2lb over. Tested against the reubens, the Fox scale only ever weighed correct with a new battery.
IMO if you want to weigh your fish and have the correct weight, then dont buy digi.
I have had scales tested for record claims, so i do know what i am talking about, the weights and measures officer stated that the Reubens and the old Avon scales were by far the best spring balance scales around, and didnt rate anglers digi scales at all, unless you use a new battery every time, even then it would depend on the make you buy weather you get a correct reading or not.