Xiaomi unveils Mi 4s smartphone at MWC
China-based startup Xiaomi on Wednesday unveiled a new mid-range smartphone 'Mi 4s' at the Mobile World Congress (MWC) in Barcelona. The dual-sim handset is a new version of Mi 4 and runs on Android 6.0 Marshmallow. Priced around ₹17,800, it features a fingerprint sensor, a 5-inch display, 13 MP rear camera, 5 MP front camera and 64 GB in-built memory.