Red Saber and Saber of Red aren't the same characters XD
Red Saber is just a nickname in the fanbase for the playable Saber in Fate/Extra. She looks like the original Saber in red, hence Red Saber.
Saber of Red is the Saber summoned by the red team in a different game of the Fate/ series.
Red Saber is just a nickname in the fanbase for the playable Saber in Fate/Extra. She looks like the original Saber in red, hence Red Saber.
Saber of Red is the Saber summoned by the red team in a different game of the Fate/ series.