Just yesterday, we shared information about the Nokia TA-1277 clearing the FCC certification process. It is a Single SIM model made for the LATAM market. Today, the Dual SIM variant of the same smartphone also passed the FCC. The model number is TA-1270 and this is a global variant.
The only difference is in the supported network bands. The changes in the network bands supported by both variants can be seen in the image above. As per the information available in the FCC listing, there are no other hardware or software changes between the two variants.