Micromax Bolt A37B:  The smartphone has been launched for Rs 4,700 and is probably amongst the cheapest smartphones to feature 3G. It has a 3.5 inch screen which has a resolution of 480 x 320 pixels. Doing the processing is a single core 1 GHz MediaTek MT6572M processor. It runs on Android 4.2 Jelly Bean which is pretty good thing considering the fact that budget handsets usually run on Android 4.0 ICS/4.1 Jelly Bean or even Android 2.3.6 Gingerbread at times. It has dual SIM support.

The internal storage capacity stands at 512 MB out of which 107 MB is user available. You can expand the same by 32GB via a microSD card. The RAM stands at 256 MB. Connectivity package includes Bluetooth, Wi-Fi, Micro-USB, GPRS and 3G which is a pretty good one considering the price it asks. At the back is a 2MP camera without flash and it packs in a 1,450 mAh battery that has been rated to give a talk time of up to 5.5 hours on 2G. Key Specs:  Micromax Bolt A46:  It has a 4 inch screen (800 x 480 pixels ) and gets a 1.2 GHz Mediatek MT6572 single core processor under the hood. It also runs on Android 4.2 Jelly Bean and get 256 MB of RAM to go with it. The internal storage capacity is 512 MB and out of that 129 MB is user available but you could always expand the storage capacity with the help of a microSD card up to 32GB.

You get Wi-Fi, Micro-USB and GPRS for connectivity. The rear 2MP snapper gets a LED flash to go with it. It has a 1,500 mAh battery to provide it with a talk time of up to 4 hours. It comes with dual SIM support as well. It is on sale for Rs 4,490 and if you can live without 3G, it can become a better device as it has a bigger screen, a better camera and slightly more powerful processor than the A37B.      

Micromax Bolt A37B and A46 go on sale for Rs 4 700 and Rs 4 490 - 45