You're correct, but the HS-251 also uses the same chipset.

They're both the same price, so the better memory in the TS-251 is probably the better option.

Not an Actor, nor married to Jamie-Lee Curtis.

#1: DSP5200SE|DSW.2|218|210|506.2|504
#2: Prime/PSU|SOtM sMS-200 Mini NEO SE|Focal Stellia