10 Cheapest And Best Smartphones To Buy Under 
4,000
#3 Karbonn Smart A1 Price: App. 
3,520
Karbonn Smart A1 comes with screen size of 3.5 inch with 320X480 pixel resolution. It is a dual SIM device and runs on Ice Cream Sandwich Version of Android. Embedded beneath the metallic lookalike exterior is a 1 GHz processor with an internal memory of 512 MB out of which only 163 MB is user available. However, the Micro SD card slot lets you to expand the memory upto 32GB. The first time Android users are the main target of the manufacturer. Karbonn A1 is loaded with a 3 MP rear camera and a basic front camera for video-calling and features a 1450 mAh battery. All the connectivity options are included in the model.
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