The Intex Aqua R4 is a dual SIM phone with 4-inch TFT display and has a resolution of 480 x 800 pixels with pixel density of 233 ppi. The device has a primary camera of 2MP with LED flash and 0.3 MP front camera. The device runs Android v4.2.2 Jelly Bean, and is powered by a 1GHz processor and 256MB RAM.
The Aqua R4 has a low internal space of 512MB but can be expanded up to 32GB with the help of an external microSD card. The device uses 1,500mAh Li-ion battery which is claimed to deliver a talk time of up to 5.5 hours and standby of 170 hours on 2G mode.
On the connectivity front, it has GPRS and Wi-Fi for internet access; in addition, it has Bluetooth and USB support for file transfer.
The Intex Aqua R4 is a low budget smartphone. It is quite apt for people seeking phones with some smartphone features within a tight budget. The phone fits into the palm and can be easily operated by one hand. The absence of 3G could be a dealbreaker though.