I am using this phone which is awesome.Its totally a great phone with good specifications.Good android system, good speakers, 4g VOLTE.
Key features
5.0-inch 720p IPS LCDQualcomm Snapdragon 430 with 1.4GHz octa-core CPU and Adreno 505 GPU2GB RAM, 16GB storage ( 3S) / 3GB RAM, 32GB storage ( 3S Prime) 13 megapixel rear camera with f2.0 aperture and PDAF, 1080p video5 megapixel front camera with f2.2 aperture, 1080p videoHybrid dual SIM ( micro SIM + nano SIM or micro SIM + microSD) 4G LTE, VoLTE, Bluetooth 4.1, Wi-Fi 802.11n, IR4100mAh batteryAndroid 6.0.1 with MIUI 7
Cons:
No scratch resistant front glassNo NFCBattery not removable