S21 Ultra $700 trade in credeit for N20U. Worth it? Uncategorized April 5, 2021 Forums AndroidCentralLeave a Comment on S21 Ultra $700 trade in credeit for N20U. Worth it? I just noticed the S21 Ultra is $500 for the Tmobile version if I trade in my Note 20 ultra. I know the Spen isn’t built in BUT for better camera and processor should I jump all over this? Sharing is caring!