Some recent threads comparing StartOS to Umbrel:
Start9's Server One is basically the same device as the Umbrel Home, except $150 cheaper and with free international shipping. You could even buy this and install Umbrel on it if you really wanted (you won't). Start9 also has devices ranging from $199 to $1,637: https://bitcoin-store.start9.com/
It is seamless to migrate from Umbrel to StartOS without having to close your lightning channels: https://youtube.com/watch?v=eyzLHilZyYk
Do your own research.