are the R15-500 and the R15-300 one in the same?

[lee78221]

is the R15-500 and the R15-300 one in the same?

I just got a R15-500 Replaced with a R15-300 are they one in the same(other than size)?

 

[lee78221]

Anyone?

 

[mjones1973]

Different manufacturers, different software versions, same functionality.