Compare Microsoft Lumia 640 Dual SIM with BLU R1 Plus, BLU R2, BLU R2 LTE
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Microsoft Lumia 640 Dual SIM 
BLU Studio G Mini -
Microsoft Lumia 640 Dual SIM 
BLU Studio J8 LTE -
Microsoft Lumia 640 Dual SIM 
BLU Studio Selfie LTE -
Microsoft Lumia 640 Dual SIM 
BLU Tank Xtreme 2.4 -
Microsoft Lumia 640 Dual SIM 
BLU Tank Xtreme 4.0
