Vivo Y18 vs Xiaomi Redmi 8a Dual

Key Specs

Battery
-	5000 mAh
Display
-	6.22 inches (15.8 cm)
Front Camera
-	8 MP
Processor
-	Qualcomm Snapdragon 439
RAM
-	2 GB
Rear Camera
-	13 MP + 2 MP

Audio

Audio Jack
3.5 mm	-
Loudspeaker
Yes	-
Stereo Speakers
Yes	-

Battery

Capacity
5000 mAh	5000 mAh
Quick Charging
Yes, Fast, 15W	Yes, Fast, 18W
Removable
No	No
Type
Li-ion	Li-Polymer
USB Type-C
Yes	Yes

Camera

Autofocus
Yes	-
Flash
Yes, LED Flash	-
Front Camera
8 MP	-
Image Resolution
8150 x 6150 Pixels	-
Rear Camera
50 MP + 0.08 MP	-
Shooting Modes
Continuous Shooting High Dynamic Range mode (HDR)	-
Video Recording
1920x1080 @ 30 fps	-

Design

Build Material
Back: Plastic	Back: Plastic
Colours
Space Black, Gem Green	Midnight Grey, Sea Blue, Sky White
Height
-	156.4 mm
Ruggedness
Dust proof	-
Thickness
-	9.4 mm
Waterproof
-	Yes, Splash proof
Weight
185 grams	188 grams
Width
-	75.4 mm

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Dimensions

Height
163.63 mm	-
Thickness
8.39 mm	-
Width
75.58 mm	-

Display

Aspect Ratio
20:9	19:9
Bezel-less display
Yes with waterdrop notch	Yes with waterdrop notch
Brightness
-	400 nits
Display Type
LCD	IPS LCD
Pixel Density
269 ppi	270 ppi
Refresh Rate
90 Hz	-
Resolution
720x1612 px (HD+)	720x1520 px (HD+)
Screen Protection
-	Corning Gorilla Glass v5
Screen Size
6.56 inches (16.66 cm)	6.22 inches (15.8 cm)
Screen to Body Ratio (calculated)
-	81.48 %
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Camera Setup
-	Single
Resolution
-	8 MP f/2.0, Primary Camera(1.12µm pixel size)
Sensor
-	CMOS
Video Recording
-	1920x1080 @ 30 fps

General

Brand
vivo	Xiaomi
Custom UI
Funtouch OS	MIUI
Launch Date
May 3, 2024	February 18, 2020
Operating System
Android v14	Android v9.0 (Pie)
SAR Value
Head: 0.98 W/kg, Body: 0.84 W/kg	-

Main Camera

Autofocus
-	Yes, Phase Detection autofocus
Camera Features
-	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
-	Dual
Flash
-	Yes, LED Flash
Image Resolution
-	4128 x 3096 Pixels
Resolution
-	13 MP f/2.2, Primary Camera(3.1" sensor size, 1.12µm pixel size)2 MP f/2.4, Depth Camera(1.75µm pixel size)
Sensor
-	CMOS image sensor
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	1920x1080 @ 30 fps 1280x720 @ 30 fps

Multimedia

Audio Jack
-	3.5 mm
FM Radio
-	Yes, Wireless FM
Loudspeaker
-	Yes

Network & Connectivity

Bluetooth
Yes, v5.0	Yes, v4.2
GPS
Yes with Glonass	Yes with A-GPS, Glonass
NFC
No	No
Network Support
5G Not Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
-	Head: 0.339 W/kg, Body: 1.000 W/kg
SIM 1
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
SIM1: Nano, SIM2: Nano	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
-	Mass storage device, USB charging
VoLTE
Yes	Yes
Wi-Fi
Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
-	Wi-Fi Direct, Mobile Hotspot

Performance

Architecture
-	64 bit
CPU
-	Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)
Chipset
-	Qualcomm Snapdragon 439
Fabrication
-	12 nm
Graphics
Mali-G52 MC2	Adreno 505
Processor
MediaTek Helio G85	-
RAM type
-	LPDDR3

Sensors

Fingerprint Sensor
Yes	No
Other Sensors
Light sensor, Proximity sensor, Accelerometer, Compass	Light sensor, Proximity sensor, Accelerometer, Compass

Storage

Expandable Memory
Yes, Up to 1 TB	Yes, Up to 512 GB
Internal Memory
64 GB	32 GB
Storage Type
eMMC 5.1	eMMC 5.1