Compare Oppo A57 with Oppo A77 with Xiaomi Redmi Note 4 4GB RAM + 64GB

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Compare Oppo A57 vs Oppo A77 vs Xiaomi Redmi Note 4 4GB RAM + 64GB

Summary	76 Score	78 Score	76 Score
Performance	Qualcomm MSM8940 Snapdragon 435 3 GB RAM Android 6.0 Marshmallow	MediaTek MT6750T 4 GB RAM Android 6.0.1 Marshmallow	Qualcomm Snapdragon 625 4 GB RAM Android Marshmallow 6.0.1 with MIUI 8
Display	5.2 inch 720 x 1280 pixels 282 PPI Density	5.2 inch 1080 x 1920 pixels 401 PPI Density	5.5 inch 1920 x 1080 pixels 401 PPI Density
Camera	13 MP (Main) 16 MP (Front)	13 MP (Main) 16 MP (Front)	13 MP (Main) 5 MP (Front)
Battery	2900 mAh Li-ion	3200 mAh Li-Po	4100 mAh Li-po
Display
Screen Size	5.2 inch	5.2 inch	5.5 inch
Screen Resolution	720 x 1280 pixels	1080 x 1920 Pixels	1920 x 1080 pixels
Pixel Density	282 PPI	401 PPI	401 PPI
Display Type	IPS LCD capacitive touchscreen, 16M colors	IPS LCD Capacitive Touchscreen, Multi-touch	FHD IPS
Gorilla Glass	Yes	-	-
Screen Protection	Gorilla Glass 4	-	-
Chipset
Brand	Oppo Mobiles	Oppo Mobiles	Xiaomi Mobiles
Chipset	Qualcomm MSM8940 Snapdragon 435	MediaTek MT6750T	Qualcomm Snapdragon 625
Processor	Octa-core 1.4 GHz Cortex-A53	Octa core (1.5 GHz, Quad core, Cortex A53 + 1 GHz, Quad core, Cortex A53)	2GHz Octa core processor
RAM	3 GB RAM	4 GB RAM	4 GB RAM
GPU	Adreno 505	Mali-T860 MP2	Adreno 506
Camera
Rear Camera Resolution	13 MP	13 MP	13 MP
Front Camera Resolution	16 MP	16 MP	5 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 6.0.1 Marshmallow	Android Marshmallow 6.0.1 with MIUI 8
Weight	147 g	147 g	165 g
Dimensions	149.1 x 72.9 x 7.7 mm	149.1 x 72.9 x 7.6 mm	151 x 76 x 8.4 mm
Thickness	7.7mm	7.6mm	8.4mm
Storage
Internal Storage	32 GB	64 GB	64 GB
Card Slot	microSD, Up to 256GB	microSD, Up to 256GB	microSD, up to 128 GB
Other	32GB, Expandable upto 256GB	64 GB storage	64GB, Expandable up to 128GB
Communication
SIM Card Slots	Dual SIM	Dual SIM	Dual SIM
SIM Card Type	Nano-SIM	Nano-SIM	Micro-SIM
Bluetooth	v4.1	v4.1	Bluetooth 4.1
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)	TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 850(band 5) / 800(band 20)	4G LTE (TDD) - B40, LTE (FDD) - B3 / B5
3G	UMTS 1900 / 2100 / 850 / 900 MHz	UMTS 2100 / 850 / 900 MHz	WCDMA - 850 / 900 / 1900 / 2100 MHz
2G	GSM 1800 / 1900 / 850 / 900 MHz	GSM 1800 / 1900 / 850 / 900 MHz	GSM - 850 / 900 / 1800 / 1900 MHz
Wi-Fi	Wi-Fi 802.11 a/g/n	Wi-Fi 802.11, a/b/g/n/n 5GHz	802.11 a/b/g/n/ac, dual band, 2.4GHz/5GHz, WiFi Display, WiFi Direct
GPS	A-GPS	A-GPS, Glonass	A-GPS, GLONASS
GPRS
EDGE
Radio
Battery
Battery Capacity	2900 mAh	3200 mAh	4100 mAh
Battery Type	Li-ion	Li-Po	Li-po
Standby Time
Talk Time
Other Features
Fingerprint Scanner
Waterproof
Sensors	Distance Sensor Light Sensor G-sensor E-compass	Light sensor Proximity sensor Gravity sensor and Electronic compass	IR Blaster
Messaging	SMS (threaded view), MMS, Email, Push Email
Java
Other