The Samsung Galaxy Tab 3 7.0 SM-T211 was launched earlier with Android 4.1.2 Jelly Bean OS out of the box. It sports a 7-inch TFT touch display with 600 x 1024 pixels resolution. It is powered by a Marvell PXA869 chipset and 1.2GHz dual-core Cortex-A9 processor, alongside 1 GB RAM.
In terms of connectivity options Samsung Galaxy Tab 3 SM-T211 include; GPS, A-GPS, 3.5mm audio jack, Bluetooth, WiFi, Wi-Fi Hotspot, Wi-Fi Direct, DLNA and USB. It has sensors like geo-magnetic, light, accelerometer and proximity. Video call supported this handset can be purchased in India for Rs 14000 in Black and White variant colour.
Since its release the Galaxy Tab 3 7.0 did not receive any major OS upgrade but finally Samsung has started rolling out the Android 4.4.2 KitKat update for the device. If you own the SM-T211 (3G+WiFi) model of the device and have not yet received the KitKat OTA update notification, it’s time to get the latest software update manually.
As I have written in first para, it was released with Android 4.1.2 Jelly Bean, and now the same can be upgraded with Android 4.4.2 KitKat OS through OTA update.
Kitkat update will bring for you battery enhancement and also fixes bugs. FOTA will not erase you person data, however, you are suggested to take the backup of your personal data then proceed with firmware update. Also, while updating the firmware make sure device is at-least charged up to 80%.