Karbonn A21

The Karbonn A21 is a budget-friendly smartphone that was released in 2012. This device runs on the Android 4.0 (Ice Cream Sandwich) operating system and is powered by a dual-core 1.2 GHz processor, providing smooth performance for everyday tasks.

The Karbonn A21 comes with 4 GB of internal memory and 512 MB of RAM, allowing users to store photos, videos, and apps without experiencing lag. Additionally, the device has a microSD slot that supports up to 32 GB of external memory, giving users the option to expand storage capacity.

The phone features a 4.5-inch TFT display with a resolution of 480 x 800 pixels, providing clear and vibrant visuals for watching videos and browsing the web. The capacitive touchscreen is responsive and easy to use, making navigation a breeze.

In terms of connectivity, the Karbonn A21 supports Wi-Fi 802.11 b/g/n, GSM, and HSPA networks. It also has dual SIM card slots, allowing users to easily switch between different carriers. Other features include Bluetooth 2.1, GPS with A-GPS support, and a microUSB 2.0 port for charging and data transfer.

The main camera on the Karbonn A21 is 5 MP with autofocus and an LED flash, while the selfie camera is 1.3 MP. The device also has a 3.5 mm headphone jack for listening to music and does not have a radio feature.

The Karbonn A21 is powered by a removable 1800 mAh Li-Ion battery, providing up to 200 hours of standby time and 5 hours of talk time. The phone is available in a pearl white color option and has a SAR rating of 0.44 W/kg (head).

Overall, the Karbonn A21 offers decent performance and features at an affordable price point. However, some potential drawbacks include the limited internal memory, outdated operating system, and lack of radio functionality. Additionally, the camera quality may not be as high as more recent smartphone models.