Power-infused performance Loaded with all the power you need, the Lumia 640 LTE works as fast and efficiently as you do. It’s a workhorse that lets you concentrate more on what you’re doing at any moment, with its quad-core Qualcomm Snapdragon 400 processor and Microsoft Office built in. And you’ll have plenty of juice to help you achieve more with the whopping 2500 mAh battery. 2G GSM 850 / 900 / 1800 / 1900. 3G WCDMA 850 / 1900 / 2100. 4G LTE band 850/2100/1900 (1700/2100) mhz..
- 8 Megapixel Camera w/ Autofocus LED Flash / Front Facing Camera
- 5 inch IPS LCD Multi Touchscreen w/ ClearBlack display Protective Corning Gorilla Glass 3
- Internal Memory: 8GB / 1GB RAM / microSD Slot Expandable up to 128GB (dedicated slot)
- Microsoft Windows Phone 8.1 with Lumia Denim / Quad Core 1.2 GHz Cortex A7 Chipset Qualcomm MSM8926 Snapdragon 4
- Single SIM 2G: GSM 850 / 900 / 1800 / 1900 3G WCDMA 850/1900/2100 MHz 4G LTE 850/2100/1900 (1700/2100)