First things first. The Lumia 640 features a 5-inch screen with a 720 x 1280 resolution. That works out to a pixel density of 294ppi. A Snapdragon 400 SoC is under the hood, carrying a 1.2GHz quad-core CPU and the Adreno 306 GPU. 1GB of RAM is inside, along with 8GB of internal memory. In the likely case that you require additional storage, a 128GB capacity microSD slot is available. The camera on back weighs in at 8MP, with a .9MP snapper in front available for selfies. A 2500mAh battery keeps the lights on, and right now Windows Phone 8.1 is pre-installed.
You can now purchase the Lumia 640 for $59.99 from big box retailer Best Buy. We’re not sure how long Best Buy will make this deal available, but we do know that you can pick up the unit for the sale price right now. Keep in mind that this is a no-contract price for the phone, which is compatible with AT&T’s Go Phone pre-paid wireless service.
source: BestBuy via WMPoweruser