When it comes to specifications, Obi Boa S503 is based on Android 4.4.2 KitKat operating system out of its box and it bestowed with a 5 inch HD IPS display that carries a screen resolution of 1280×720 pixels. The smartphone employs a 1.3 GHz quad core MediaTekMT6582V/X processor aided by 1 GB of RAM to take charge of the multi-tasking requirements. The Obi Boa S503 bundles meager 4 GB of inbuilt storage capacity with support for expandable storage up to 64 GB using a micro SD card. In terms of imaging, it comes with an 8 MP Samsung CMOS rear camera sensor with auto focus and LED flash and a 2 MP front facing camera for video conferencing and clicking selfies. The connectivity features onboard the Obi smartphone include Dual SIM functionality, 3G, Wi-Fi, GPS and Bluetooth. The device makes use of a 2,400 mAh battery that is rated to pump in up to 6 hours of talk time and up to 230 hours of standby time respectively.