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Xiaomi Redmi 6A vs Redmi 5A vs Xiaomi Redmi 4A vs Vivo Y51

Xiaomi Redmi 6A vs Redmi 5A vs Xiaomi Redmi 4A vs Vivo Y51 comparison

Show Only Differences Highlight Differences	Xiaomi Redmi 6A	Redmi 5A	Xiaomi Redmi 4A	Vivo Y51
ratings
Overall NDTV Rating	Read Review	Read Review	Read Review	-
Design Rating				-
Display Rating				-
Software Rating				-
Performance Rating				-
Battery Life Rating				-
Camera Rating				-
Value for Money Rating				-
key specs
Display	5.45-inch	5.00-inch	5.00-inch	5.00-inch
Processor	MediaTek Helio A22	Qualcomm Snapdragon 425	Qualcomm Snapdragon 425	1.2GHz quad-core
Front Camera	5-megapixel	5-megapixel	5-megapixel	5-megapixel
Rear Camera	13-megapixel	13-megapixel	13-megapixel	8-megapixel
RAM	2GB	2GB	2GB	2GB
Storage	16GB	16GB	16GB	16GB
Battery Capacity	3000mAh	3000mAh	3120mAh	2350mAh
OS	Android 8.1 Oreo	Android 7.1.2	Android 6.0	Android 5.0.2
Resolution	720x1440 pixels	720x1280 pixels	720x1280 pixels	540x960 pixels
general
Brand	Xiaomi	Xiaomi	Xiaomi	Vivo
Model	Redmi 6A	Redmi 5A	Redmi 4A	Y51
Release date	June 1, 2018	October 1, 2017	November 1, 2016	November 1, 2015
Launched in India	Yes	Yes	Yes	-
Form factor	Touchscreen	Touchscreen	Touchscreen	Touchscreen
Body type	Plastic	Metal	-	-
Dimensions (mm)	147.50 x 71.50 x 8.30	140.40 x 70.10 x 8.40	139.50 x 70.40 x 8.50	143.80 x 71.70 x 7.52
Weight (g)	145.00	137.00	131.50	157.00
Battery capacity (mAh)	3000	3000	3120	2350
Removable battery	No	No	No	No
Wireless charging	No	-	-	-
Colours	Blue, Gold, Rose Gold, Black	Gold, Rose Gold, Grey	Golden, Rose Gold, Dark Grey	White
display
Screen size (inches)	5.45	5.00	5.00	5.00
Touchscreen	Yes	Yes	Yes	Yes
Resolution	720x1440 pixels	720x1280 pixels	720x1280 pixels	540x960 pixels
Aspect ratio	18:9	16:9	16:9	-
Pixels per inch (PPI)	295	294	296	-
hardware
Processor	2GHz quad-core (4x2GHz)	1.4GHz quad-core	1.4GHz quad-core	1.2GHz quad-core
Processor make	MediaTek Helio A22 (MT6761)	Qualcomm Snapdragon 425	Qualcomm Snapdragon 425	-
RAM	2GB	2GB	2GB	2GB
Internal storage	16GB	16GB	16GB	16GB
Expandable storage	Yes	Yes	Yes	Yes
Expandable storage type	microSD	microSD	microSD	microSD
Expandable storage up to (GB)	256	256	128	128
Dedicated microSD slot	Yes	-	-	-
camera
Rear camera	13-megapixel (f/2.2)	13-megapixel (f/2.2)	13-megapixel (f/2.2)	8-megapixel
Rear autofocus	Phase detection autofocus	Phase detection autofocus	-	-
Rear flash	LED	LED	Dual LED	LED
Front camera	5-megapixel	5-megapixel (f/2.0)	5-megapixel (f/2.2)	5-megapixel
Front flash	No	No	-	-
software
Operating system	Android 8.1 Oreo	Android 7.1.2	Android 6.0	Android 5.0.2
Skin	MIUI 9.6	MIUI 9	MIUI 8	FunTouch OS
connectivity
Wi-Fi	Yes	Yes	Yes	Yes
Wi-Fi standards supported	802.11 b/g/n	802.11 b/g/n	802.11 a/b/g/n	-
GPS	Yes	Yes	Yes	Yes
Bluetooth	Yes, v 4.20	Yes, v 4.10	Yes, v 4.10	Yes
NFC	No	No	No	No
Infrared	No	Yes	Yes	No
USB OTG	Yes	Yes	Yes	No
USB Type-C	No	-	-	-
Micro-USB	Yes	Yes	-	-
Headphones	3.5mm	3.5mm	3.5mm	3.5mm
FM	Yes	Yes	Yes	Yes
Number of SIMs	2	2	2	2
Active 4G on both SIM cards	Yes	-	-	-
Wi-Fi Direct	-	No	Yes	No
Mobile High-Definition Link (MHL)	-	No	No	No
sim 1
SIM Type	Nano-SIM	Nano-SIM	Micro-SIM	Micro-SIM
GSM/CDMA	GSM	GSM	GSM	GSM
3G	Yes	Yes	Yes	Yes
4G/ LTE	Yes	Yes	Yes	Yes
sim 2
SIM Type	Nano-SIM	Nano-SIM	Nano-SIM	Micro-SIM
GSM/CDMA	GSM	GSM	GSM	GSM
3G	Yes	Yes	Yes	No
4G/ LTE	Yes	Yes	Yes	Yes
sensors
Face unlock	Yes	-	-	-
Fingerprint sensor	No	-	-	-
Compass/ Magnetometer	Yes	No	No	No
Proximity sensor	Yes	Yes	Yes	Yes
Accelerometer	Yes	Yes	Yes	Yes
Ambient light sensor	Yes	Yes	Yes	Yes
Gyroscope	No	No	Yes	Yes
Barometer	-	No	No	No
Temperature sensor	-	No	No	No

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