The Micromax Bolt A28 runs dated Android 2.3 Gingerbread, and is a dual-SIM device with support for GSM+GSM and dual standby. It features a 3.5-inch display with 320x480 pixels resolution. The Bolt A28 is powered by a 1GHz Cortex A5 processor (unspecified chipset) along with a Mali 300 GPU and 1GB of RAM. It's noteworthy that the Bolt A28 sports two 0.3-megapixel cameras, one at the front and another at the back (with LED flash), as per online listing.
It comes with 512MB of inbuilt storage, which can be expanded up to 32GB with the help of a microSD card. The Micromax Bolt A28 packs a 1500mAh battery, which as per the Flipkart's listing, can deliver up to 4 hours of talktime and up to 260 hours of standby time.
Connectivity options on the Micromax Bolt A28 include Bluetooth, Wi-Fi, GPRS, EDGE, GPS/ AGPS and Micro-USB. The Bolt A28 does not support 3G networks. It measures 116.9x62.5x12.5mm and weighs about 89 grams.
The Micromax Bolt A59 on the other hand runs Android 4.1 Jelly Bean out-of-the-box. The Micromax's new budget Android smartphone is a dual-SIM (GSM+GSM) device with dual standby support. It comes with a 3.5-inch display with 320x480 pixels resolution, and is powered by a 1GHz Spreadtrum SC7710 processor along with a Mali 300 GPU and 256MB of RAM.
It includes 4GB of inbuilt storage, which is further expandable up to 16GB via microSD card. The Micromax Bolt A59 sports a 2-megapixel rear camera with LED flash and also includes a VGA front-facing camera. The device packs a 1500mAh battery that the listing claims can give a standby time of up to 160 hours, and up to 4 hours of talktime.
Connectivity options on the Micromax Bolt A59 include Bluetooth, Wi-Fi, Micro-USB, GPRS, EDGE and 3G. The smartphone also comes preloaded with apps such as Hike, Opera, Spuul, Game HUB, Kingsoft Office and M! Live.