Xiaomi Redmi 8A Dual vs Vivo Y91i
Key Feature Comparison
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At a Glance
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Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)
Octa core, 2 GHz, Cortex A53
5000 mAh
4030 mAh
6.22 inches
6.22 inches
Dual, 13MP + 2MP
Single, 13MP
4G
4G
Detailed Specs
Screen Size
6.22 inches
6.22 inches
Screen Type
IPS LCD
IPS LCD
Screen Resolution
720 x 1520 pixels
720 x 1520 pixels
Pixel Density
270 ppi
270 ppi
Screen Protection
Gorilla Glass 5
-
Screen to Body Ratio
81.48%
88.60%
Screen Design
Waterdrop notch
Waterdrop notch
Peak Brightness
400 nits
-
Phone Variants
3GB 64GB, 3GB 32GB, 2GB 32GB
3GB 32GB, 2GB 32GB, 2GB 16GB
Expandable Storage
Yes
Yes
RAM Type
LPDDR3
LPDDR3
Storage Type
eMMC 5.1
eMMC 5.1
Expandable Storage Capacity
Yes, 512 GB
Yes, 256 GB
OTG Support
-
Yes
Sensors
Light sensor, Proximity sensor, Accelerometer, Compass
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Operating System
Android v9.0 (Pie)
Android v8.1 (Oreo)
GPU
Adreno 505
PowerVR GE8320
Chipset
Qualcomm Snapdragon 439
MediaTek Helio P22
CPU
Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)
Octa core, 2 GHz, Cortex A53
Custom User Interface
MIUI
Funtouch OS
Clock Speed
1.95 GHz
2 GHz
Architecture
64 bit
64 bit
Process Technology
12 nm
12 nm
Battery Capacity
5000 mAh
4030 mAh
Battery Removable
No
No
Battery Type
Li-Polymer
Li-ion
Charger Type
Fast, 18W
-
USB Type-C
Yes
No
Fast Charging
Yes
-
Announced On
11-Feb-20
5-Mar-19
Market Status
Available
Available
Brand
Xiaomi
Vivo
Model Number
M1908C3KI
-
Price Status
Confirmed
Confirmed
Price
Rs. 6,999
Rs. 8,199
Water Resistance
Yes, Splash proof
-
Weight
188 grams
163.5 grams
Colors
Midnight Grey, Sea Blue, Sky White
Red, Fusion Black, Sunset Red, Ocean Blue
Build
Back: Plastic
Back: Plastic
Dimensions
156.4 x 75.4 x 9.4 mm
155.1 x 75 x 8.2 mm
SAR Value
-
Head: 1.283 W/kg, Body: 0.609 W/kg
GPS
Yes A-GPS, Glonass
Yes A-GPS, Glonass
NFC
No
No
Network Support
4G
4G
Bluetooth
Yes
Yes
FM Radio
Yes, Wireless FM
Yes
3.5mm Audio Jack
Yes
Yes
SIM Size
SIM1: Nano, SIM2: Nano
SIM1: Nano, SIM2: Nano
Wi-Fi
Yes, Wi-Fi 802.11, b/g/n
Yes, Wi-Fi 802.11, b/g/n
Bluetooth Type
v4.2
v5.0
Audio Jack
3.5 mm
3.5 mm
SIM Slot(s)
Dual SIM, GSM+GSM
Dual SIM, GSM+GSM
eSIM
No
No
Wi-Fi Features
Wi-Fi Direct, Mobile Hotspot
Mobile Hotspot
VoLTE
Yes
Yes
SIM 1 Bands
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...
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 850(band 5), 3G Bands: UMTS 1900 / 2100 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 900 MHz, GPRS: Available, EDGE: Available...
SIM 2 Bands
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...
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 1900 / 2100 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 900 MHz, GPRS: Available, EDGE: Available...
Audio Features
-
Active noise cancellation with dedicated mic
Front Video Recording
1920x1080 @ 30 fps
-
Front Camera Features
HDR
-
Front Camera Setup
Single, 8MP
Single, 5MP
Front Camera 1 Resolution
8 MP
5 MP
Front Camera 1 Type
f/2.0 Primary Camera
f/1.8 Primary Camera
Front Camera 1 Lens
1.12 micrometre pixel size
-
Front Sensor
CMOS
-
Front Aperture
f/2.0
f/1.8
Rear Flash
Yes, LED Flash
Yes, LED Flash
Rear Video Recording
1920x1080 @ 30 fps, 1280x720 @ 30 fps
1920x1080 @ 30 fps
Rear Camera Features
Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus
Rear Camera Setup
Dual, 13MP + 2MP
Single, 13MP
Rear Camera 1 Resolution
13 MP
13 MP
Rear Camera 1 Type
f/2.2 Primary Camera
f/2.2 Primary Camera
Rear Camera 1 Lens
3.1" sensor size, 1.12 micrometre pixel size
-
Rear Camera 2 Resolution
2 MP
-
Rear Camera 2 Type
f/2.4, Depth Camera
-
Rear Camera 2 Lens
1.75 micrometre pixel size
-
Rear Sensor
CMOS image sensor
-
Rear Aperture
f/2.2
f/2.2
Fingerprint Scanner
No
No
Face Unlock
Yes
Yes