Spyder 3 works just fine on my Windows 10 machine. No reason for me to upgrade at all.wsmith96 said:I upgraded from a Spyder 3 due to software compatibility with windows 10. Not sure if the Spyder 4 would be in the same boat but the Spyder 5 works just fine. My eyes couldn't tell a difference between a Spyder 3/5 calibrated monitor. If it's a good deal, you might consider the upgrade just for software support reasons.