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It is the difference in GSM bandwidth, buy the one with Global GSM it will support all the other countries.
Sorry, there was a problem. Please try again later.It depends on what frequency bands are used by the carriers in Brazil. The supported bands for each version are: US GSM Model: (Optimized for T-Mobile US) GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz) UMTS/HSPA+ (850, 1700 (AWS), 1900 MHz) Global GSM Model: (Optimized for AT&T and Global Use) GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz) UMTS/HSPA+ (850, 900, 1900, 2100 MHz)
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