Yes, it's possible. Yet, you should consider two important aspects for transferring your domain to Wix from another registrar.
Initially, Wix becomes the domain host. It means that if you need domain renewal in the future, it will be run not from the previous domain host but your current Wix account.
Secondly, you can manage DNS records like pointing a domain to another IP address, connecting subdomains, and your email from your Wix account.