1. Screen Size
Even though it was released this week, let’s face it: the Lumia 550 is so 2014. It has a 4.7-inch screen with a resolution of 720 x 1,280. This might not sound so bad if you didn’t know that the Lumia 640, which was released in April, is 5.0-inches, with the same screen resolution.
This pathetic handset can only offer a quad-core Snapdragon 210 chipset that performs at a measly 1.1Ghz. Microsoft’s 640, however, has a quad-core Snapdragon 400 chipset that has been clocked at a faster 1.2Ghz. Which is ridiculous.
The Lumia 550 has the Adreno 304 GPU for all its multimedia, which is much slower than the Adreno 305, which is under the hood of the Lumia 640.
4. Primary Camera
On the back, the Lumia 550 has only 5 megapixels, which I will remind everyone is often what the front camera is (if not more). On the front, though, it has 2 megapixels. The Lumia 640, however, has a solid 8 megapixels, but the secondary camera only shoots 1 megapixel shots.
5. Battery Life
The 550 can only offer 2100 mAh, but the Lumia 640 has a solid 2500 mAh, which will certainly last all day, even given the spec difference.
Currently priced at $139, the Lumia 550 is certainly cheap, but not when you realize that the Lumia 640 is on sale for $99.
So really, what’s the difference? They both 1GB of RAM and 8GB of internal storage that is expandable. The main difference is that the 550 can support LTE and has Windows 10 out of the box, whereas the 640 still has Windows 8.1 with a Denim skin, and you need to specifically buy the 640 LTE Dual-SIM for 4G capability.
For the price difference, you might as well get the Lumia 640.
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