I’ve had both and currently have the 9500ix.
Best way I can summarize it is this - for a daily commuter vehicle that will travel the same roads and you will put most miles on - 9500ix or any GPS model to shut off the annoying fake signals (I knew I had a bunch of them on my way in to work, and having V1 before I knew it would always be going off).
However for a bike or anything fast that you will be breaking the law on but you wont drive daily I’d still go with V1.