Compare Microsoft Lumia 640 LTE with Sony Xperia E1, Sony Xperia E1 dual, Sony Xperia E3
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Microsoft Lumia 640 LTE 
Sony Xperia T2 Ultra dual -
Microsoft Lumia 640 LTE 
Sony Xperia Z1 Compact -
Microsoft Lumia 640 LTE 
Sony Xperia Z2 Tablet LTE -
Microsoft Lumia 640 LTE 
Sony Xperia Z2 Tablet Wi-Fi
