I came from the 9 Pro XL and now have the 10 Pro XL. I agree that there isn't much difference between the two. My battery life may be a touch better on the 10 but it's not significant. I think the speakers sound better for sure on the 10 and I'm having better luck with the fingerprint scanner on the 10. I don't think it was changed at all but it's working better for me than the fingerprint scanner did on the 9. I have a tempered glass screen protector on the 10 and had one on the 9. The one on the 10 is made by Spigen and on the 9 I used a cheaper no-name brand so perhaps that's the difference. I'm not unhappy moving to the 10 but if I could do it over, I'd stick with the 9 Pro XL and save the cash.