The Lenovo A390 is an entry level handset bearing a 4.0-inch 800 x 480 pixel display. It uses a dual-core 1GHz chip to run Android 4.0 Ice Cream Sandwich onboard, which is considered to be a dated OS in today's date. There's 512MB of RAM, 4GB internal storage an a microSD card slot. A 5 megapixel camera at the back is not accompanied by an LED flash, nor is there a front-facing camera for video-calls. The 1500 mAh battery should provide acceptable runtime, considering the low-end specs of the phone. The Lenovo A390 is a dual-SIM phone, but supports only dual-band (900 and 1800 MHz). There's 3G support for high-speed internet though.
Lenovo is one of the leading consumer electronics manufacturer. Recently, it has acquired Motorola from Google to boost the mobile business. Though this phone is from their own portfolio. The Lenovo A516 features a 4.5 inch display with a screen resolution of 854x480 pixels which translates into a low pixel density of 218PPI. Under the hood, there is a 1.3GHz Dual-core MediaTek processor which is paired with 512MB RAM. There is an internal storage of 4GB which can be expanded upto 32GB by using microSD cards.
On the photography front, there is a 5 megapixel rear camera without flash. Moreover, there is a secondary camera as well for video chatting and selfies. The Lenovo A516 supports Dual-SIM along with 3G Connectivity. It runs on Android v4.2 Jelly Bean and is powered by a 2000mAh battery which should be sufficient enough to power this device for a day. Unfortunately, it falls in the Moto E territory, which is a strong contender in this price range.