Advantage-
1.Gionee X1s comes with Android OS, v7.0( Nougat) .
2.Presents 5.2-inch IPS LCD capacitive touchscreen and Multitouch in it.
3.Its display is protected by Corning Gorilla Glass.
4.Gionee X1s display has good pixel density for its HD resolution
5.Supports Dual SIM ( Nano-SIM, dual stand-by) .
6.provides 3 GB RAM for multitasking.
7.It encompasses with Quad-core processor.
8.It Brings an internal memory of 16 GB and expandable memory is supported up to 256 GB ( uses dedicated slot) .
9.It offers 13 MP rear camera with additional features like autofocus, dual-LED dual-tone flash, Geo-tagging, touch focus, face detection, HDR, panorama
10.It offers 16 MP front-facing camera.
11.Full HD video recording
12.It has the battery capacity of 4000 mAh which is great for heavy usage at rs 8500 Flipkart
13.Performance is smooth with no lags.
14.Supports almost all connectives like Wi-Fi, Bluetooth, USB, 3G, 4G.
15.Supports sensors like Fingerprint ( rear-mounted) , accelerometer, proximity.
16.Design and build quality are great.
17.Users has choice as it is available in Black, Gold colors to choose.
Disadvantages ( Cons) :
1.Old Android OS.
2.Many sensors are missing like gyro, compass etc.
3.Very few colors to choose.
4.A little bit heavy to carry.
5.Old design style nothing great.
6.No fast charging support dash charger is not supported.
7.Not much stylish to show off