According to the online retailer's listing, the Aqua Q3 comes with a 4.5-inch FWVGA (480x854 pixels) IPS display; dual-SIM (GSM+GSM) support; a 1.2GHz quad-core processor; 1GB of RAM; 8GB of inbuilt storage that's further expandable via microSD (up to 32GB); an 8-megapixel rear camera; a secondary 1.3-megapixel front-facing camera, and an 1800mAh battery. The Intex Aqua Q3 measures 131.5x65x9.5mm.
The Intex Aqua X15, on the other hand, is listed to feature a 3.5-inch (320x480 pixels) display and support dual-SIM (GSM+GSM) functionality. Other specifications of the handset include a 1GHz single-core processor; 256MB of RAM; 512MB of inbuilt storage that can be expanded via microSD card (up to 32GB); a 2-megapixel rear camera with LED flash; a 0.3-megapixel front camera, and a 1400mAh battery. The phone measures 116x62.8x10.5mm.
Both the Aqua Q3 and Aqua X15 include connectivity options such Wi-Fi 802.11 b/g/n, Micro-USB, and Bluetooth. The Intex Aqua Q3 supports 3G connectivity while Aqua X15 just supports GPRS/ EDGE.