We haven't had a chance to fully test this product yet, but we've assembled this helpful overview of relevant information on it.
Running Android 4.0.4 (Ice Cream Sandwich) OS, the Karbonn A15 models a 4-inch TFT LCD touchscreen display with 480 x 800 pixel native resolution, a 1 GHz CPU and 512MB RAM. Additional features include 4GB internal storage, a microSD media slot (up to 32GB expansion), a 3.2-megapixel rear-facing camera, a front-facing camera, as well as Wi-Fi, USB 2.0 and Bluetooth connectivity options.
Dual SIM Functionality
Android 4.0.4 (Ice Cream Sandwich) OS
4-inch TFT LCD Touchscreen Display
480 x 800 Pixel Native Resolution
1 GHz CPU
microSD Media Slot