Compare Oppo A57 with Vivo Y55S with Xiaomi Redmi 4A

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Compare Oppo A57 vs Vivo Y55S vs Xiaomi Redmi 4A

Summary	76 Score	76 Score	79 Score
Performance	Qualcomm MSM8940 Snapdragon 435 3 GB RAM Android 6.0 Marshmallow	Qualcomm Snapdragon 425 3 GB RAM Android 6.0 Marshmallow based Funtouch OS 3.0	Qualcomm Snapdragon 425 2 GB RAM Android 6.0 Marshmallow with MIUI 8
Display	5.2 inch 720 x 1280 pixels 282 PPI Density	5.2 inch 720 x 1280 pixels 282 PPI Density	5 inch 1280 x 720 pixels 294 PPI Density
Camera	13 MP (Main) 16 MP (Front)	13 MP (Main) 5 MP (Front)	13 MP (Main) 5 MP (Front)
Battery	2900 mAh Li-ion	2730 mAh Li-on	3120 mAh Li-ion
Display
Screen Size	5.2 inch	5.2 inch	5 inch
Screen Resolution	720 x 1280 pixels	720 x 1280 pixels	1280 x 720 pixels
Pixel Density	282 PPI	282 PPI	294 PPI
Display Type	IPS LCD capacitive touchscreen, 16M colors	IPS LCD Capacitive TouchScreen	IPS LCD, Multi-touch
Gorilla Glass	Yes	Yes	-
Screen Protection	Gorilla Glass 4	Corning Gorilla Glass 2	-
Chipset
Brand	Oppo Mobiles	Vivo Mobiles	Xiaomi Mobiles
Chipset	Qualcomm MSM8940 Snapdragon 435	Qualcomm Snapdragon 425	Qualcomm Snapdragon 425
Processor	Octa-core 1.4 GHz Cortex-A53	1.4GHz Quad-core Processor	1.4Ghz Quad-core Processor
RAM	3 GB RAM	3 GB RAM	2 GB RAM
GPU	Adreno 505	Adreno 505 GPU	Adreno 308 GPU
Camera
Rear Camera Resolution	13 MP	13 MP	13 MP
Front Camera Resolution	16 MP	5 MP	5 MP
Video
Camera Features	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging	Autofocus, Touch Focus, Flash
General
Operating System	Android	Android	Android
OS Version	Android 6.0 Marshmallow	Android 6.0 Marshmallow based Funtouch OS 3.0	Android 6.0 Marshmallow with MIUI 8
Weight	147 g	142 g	131.5 g
Dimensions	149.1 x 72.9 x 7.7 mm	147.9 x 72.9 x 7.5 mm
Thickness	7.7mm	7.5mm
Storage
Internal Storage	32 GB	16 GB	16 GB
Card Slot	microSD, Up to 256GB	microSD, up to 256 GB	microSD, Up to 128GB
Other	32GB, Expandable upto 256GB	16GB, Expandable up to 256GB	16 GB, Expandable upto 128GB
Communication
SIM Card Slots	Dual SIM	Dual SIM	Dual SIM
SIM Card Type	Nano-SIM	Micro-SIM	Micro-SIM
Bluetooth	v4.1	v4.1	v4.1
3.5 mm Jack	Yes	Yes	Yes
NFC	No		No
Connectivity
VoLTE
4G	TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)	800 / 1800 / 1900 / 2100 / 2600 MHz LTE, Speed: 150 Mbps (Downlink), 50 Mbps (Uplink)	LTE 2100, LTE 800, LTE 1800, LTE 2600
3G	UMTS 1900 / 2100 / 850 / 900 MHz	850 / 900 / 1900 / 2100 MHz HSDPA, Speed: 21 Mbps (HSDPA), 5.76 Mbps (HSUP	UMTS 1900 / 2100 / 850 / 900 MHz
2G	GSM 1800 / 1900 / 850 / 900 MHz	850 / 900 / 1800 / 1900 MHz	GSM 1800 / 1900 / 850 / 900 MHz
Wi-Fi	Wi-Fi 802.11 a/g/n	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 a/g/n
GPS	A-GPS	A-GPS / GPS	A-GPS
GPRS
EDGE
Radio
Battery
Battery Capacity	2900 mAh	2730 mAh	3120 mAh
Battery Type	Li-ion	Li-on	Li-ion
Standby Time		Up to 250 Hours
Talk Time		Up to 11 Hours
Other Features
Fingerprint Scanner
Waterproof
Sensors	Distance Sensor Light Sensor G-sensor E-compass	Proximity Sensor Accelerometer Ambient Light G-Sensor Gyro	Light sensor Proximity sensor Accelerometer
Messaging	SMS (threaded view), MMS, Email, Push Email	SMS, MMS, Email, Push Mail, IM, Hangouts
Java
Other