Compare Oppo A57 with Realme 2 4GB RAM + 64GB with Vivo Y66

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Compare Oppo A57 vs Realme 2 4GB RAM + 64GB vs Vivo Y66

Summary	76 Score	80 Score	75 Score
Performance	Qualcomm MSM8940 Snapdragon 435 3 GB RAM Android 6.0 Marshmallow	Qualcomm Snapdragon 450 4 GB RAM Android Oreo 8.1	MediaTek MT6750 3 GB RAM Android 6.0.1, Marshmallow
Display	5.2 inch 720 x 1280 pixels 282 PPI Density	6.2 inch 720 x 1520 pixels 271 PPI Density	5.5 inch 720 x 1280 pixels 267 PPI Density
Camera	13 MP (Main) 16 MP (Front)	13 + 2 MP (Main) 8 MP (Front) Dual Camera	13 MP (Main) 16 MP (Front)
Battery	2900 mAh Li-ion	4230 mAh Li-ion	3000 mAh Li-po
Display
Screen Size	5.2 inch	6.2 inch	5.5 inch
Screen Resolution	720 x 1280 pixels	720 x 1520 pixels	720
Pixel Density	282 PPI	271 PPI	267 PPI
Display Type	IPS LCD capacitive touchscreen, 16M colors	HD+	IPS LCD, Multi-touch
Gorilla Glass	Yes	Yes	Yes
Screen Protection	Gorilla Glass 4	Corning Gorilla Glass	Gorilla Glass 3
Chipset
Brand	Oppo Mobiles	Realme Mobiles	Vivo Mobiles
Chipset	Qualcomm MSM8940 Snapdragon 435	Qualcomm Snapdragon 450	MediaTek MT6750
Processor	Octa-core 1.4 GHz Cortex-A53	1.8 GHz Quad Core Processor	1.5 Ghz Octa-core Processor
RAM	3 GB RAM	4 GB RAM	3 GB RAM
GPU	Adreno 505	Adreno 506	Adreno 505 GPU
Camera
Rear Camera Resolution	13 MP	13 + 2 MP	13 MP
Front Camera Resolution	16 MP	8 MP	16 MP
Video
Camera Features	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging	Autofocus, Touch Focus, Flash, Panorama, Geo-Tagging
General
Operating System	Android	Android	Android
OS Version	Android 6.0 Marshmallow	Android Oreo 8.1	Android 6.0.1, Marshmallow
Weight	147 g	168 g	155 g
Dimensions	149.1 x 72.9 x 7.7 mm	156.2 x 75.6 x 8.2 mm	153.8 x 75.5 x 7.6 mm
Thickness	7.7mm	8.2mm	7.6mm
Storage
Internal Storage	32 GB	64 GB	32 GB
Card Slot	microSD, Up to 256GB	microSD, Up to 256 GB	microSD, Up to 128GB
Other	32GB, Expandable upto 256GB	64 GB, Expandable up to 256 GB	32GB, Expandable upto 128GB
Communication
SIM Card Slots	Dual SIM	Dual SIM	Dual SIM
SIM Card Type	Nano-SIM	Nano-SIM	Micro-SIM
Bluetooth	v4.1	v4.2	v4.1
3.5 mm Jack	Yes	Yes	Yes
NFC	No	No	No
Connectivity
VoLTE		Dual SIM Dual 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)	FDD-LTE--800 / 1800 / 1900 / 2100 / 2600 MHz	LTE 2100, LTE 800, LTE 1800, LTE 2600
3G	UMTS 1900 / 2100 / 850 / 900 MHz	UMTS 2100 / 900 MHz	UMTS 1900 / 2100 / 850 / 900 MHz
2G	GSM 1800 / 1900 / 850 / 900 MHz	GSM 1800 / 1900 / 850 / 900 MHz	GSM 1800 / 1900 / 850 / 900 MHz
Wi-Fi	Wi-Fi 802.11 a/g/n	Wi-Fi 802.11 a/b/g/n	Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot
GPS	A-GPS	A-GPS	A-GPS
GPRS
EDGE
Radio
Battery
Battery Capacity	2900 mAh	4230 mAh	3000 mAh
Battery Type	Li-ion	Li-ion	Li-po
Standby Time
Talk Time
Other Features
Fingerprint Scanner
Waterproof
Sensors	Distance Sensor Light Sensor G-sensor E-compass		Accelerometer Gyro sensor and Geomagnetic sensor
Messaging	SMS (threaded view), MMS, Email, Push Email
Java
Other