Barely a month ago, infinix launched the HOT S X521. The brand has launched the HOT 4 X557.
According to Infinix, the device is praised for it's music and sound quality because it features a Dual High-Quality Stereo Speakers.

The Infinix hot 4 comes with a finger print scanner and a larger battery compated to it's predecessors.
Key Specs*.Model Name: Infinix X557
*.Screen: 5.5inch HD Display
*.Memory: 2GB RAM, 16GB ROM, 32GB micro SD
*.CPU: MT6580 Quad Core Cortex; 1.3GHz
*.Operating System: XOS (Based on Android Marshmallow)
*.Camera: 13MP Back, 5MP Front
*.Battery: 4,000mAh
*.SIM: Dual micro
*.Extras: Finger-print ID, Bluetooth 4.0
The device is available on Jumia and it's being sold for N36,900