The Microsoft Lumia 640 comes equipped with a 5-inch, 720 x 1280 resolution screen. That combination produces a pixel density of 294ppi. Under the hood is the Snapdragon 400 SoC, which contains a quad-core 1.2GHz CPU and the Adreno 305 GPU. 1GB of RAM is aboard with 8GB of native storage. For those needing additional memory, there is a 128GB capacity microSD slot available. An 8MP camera adorns the back of the unit while a .9MP front-facing camera is ready to handle selfies. A 2500mAh battery keeps the lights on, and Windows Phone 8.1 is pre-installed.
This particular Walmart had received two Lumia 640 units, both of which sold out quickly. This bodes well for sales of the handset once it is officially launched by T-Mobile.
Alan, an ardent smartphone enthusiast and a veteran writer at PhoneArena since 2009, has witnessed and chronicled the transformative years of mobile technology. Owning iconic phones from the original iPhone to the iPhone 15 Pro Max, he has seen smartphones evolve into a global phenomenon. Beyond smartphones, Alan has covered the emergence of tablets, smartwatches, and smart speakers.
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