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Xiaomi Mi A1 vs Vivo Y91

Key Feature Comparison

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At a Glance

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Octa core, 2 GHz, Cortex A53

Qualcomm Snapdragon 625 MSM8953, Adreno 506

Octa core, 2 GHz, Cortex A53

MediaTek Helio P22, PowerVR GE8320

3080 mAh

Li-ion

4030 mAh

Li-ion

5.5 inches

401 ppi, FHD

6.22 inches

270 ppi

Dual, 12MP + 12MP

3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 120 fps

Dual, 13MP + 2MP

1920x1080 @ 30 fps

4G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

5.5 inches
6.22 inches

Screen Type

IPS LCD
IPS LCD

Screen Resolution

1080 x 1920 pixels
720 x 1520 pixels

Pixel Density

401 ppi
270 ppi

Screen Protection

Corning Gorilla Glass
-

Screen to Body Ratio

70.63%
88.60%

Screen Quality

FHD
-

Screen Design

-
Waterdrop notch

Phone Variants

4GB 64GB
3GB 32GB, 2GB 32GB

Expandable Storage

Yes
Yes

RAM Type

LPDDR3
LPDDR3

Storage Type

eMMC 5.1
eMMC 5.1

Expandable Storage Capacity

Yes, 128 GB
Yes, 256 GB

OTG Support

Yes
Yes

Sensors

Light sensor, Proximity sensor, Accelerometer, Gyroscope
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Operating System

Android v7.1.2 (Nougat)
Android v8.1 (Oreo)

GPU

Adreno 506
PowerVR GE8320

Chipset

Qualcomm Snapdragon 625 MSM8953
MediaTek Helio P22

CPU

Octa core, 2 GHz, Cortex A53
Octa core, 2 GHz, Cortex A53

Custom User Interface

Android One
Funtouch OS

Clock Speed

2 GHz
2 GHz

Architecture

64 bit
64 bit

Process Technology

14 nm
12 nm

Battery Capacity

3080 mAh
4030 mAh

Battery Removable

No
No

Battery Type

Li-ion
Li-ion

USB Type-C

Yes
No

Announced On

5-Sep-17
5-Nov-18

Market Status

Available
Available

Brand

Xiaomi
Vivo

Model Number

MD12
-

Price Status

Confirmed
Confirmed

Price

Rs. 11,490
Rs. 8,499

GPS

Yes A-GPS, Glonass
Yes A-GPS, Glonass

Audio Features

Active noise cancellation with dedicated mic
Active noise cancellation with dedicated mic

NFC

No
-

Network Support

4G
4G

Bluetooth

Yes
Yes

FM Radio

No
Yes

3.5mm Audio Jack

Yes
Yes

SIM Size

SIM1: Nano, SIM2: Nano (Hybrid)
SIM1: Nano, SIM2: Nano

Wi-Fi

Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz
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) / 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 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 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) / 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 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...

Front Video Recording

1080p30fps
-

Front Camera Setup

Single, 5MP
Single, 8MP

Front Camera 1 Resolution

5 MP
8 MP

Front Camera 1 Type

f/2.0, Primary Camera
f/1.8 Primary Camera

Front Aperture

f/2.0
f/1.8

Front Flash

-
Yes, Screen flash

Weight

165 grams
163.5 grams

Colors

Black, Gold, Red, Rose Gold
Ocean Blue, Starry Black

Build

Case: Metal, Back: Metal
Back: Plastic

Dimensions

155.4 x 75.8 x 7.3 mm
155.1 x 75 x 8.2 mm

SAR Value

Head: 1.26 W/kg, Body: 0.17 W/kg
Head: 1.283 W/kg, Body: 0.609 W/kg

OIS

No
-

Rear Flash

Yes, Dual-color LED Flash
Yes, LED Flash

Rear Video Recording

3840x2160 @ 30 fps, 1920x1080 @ 30 fps, 1280x720 @ 120 fps
1920x1080 @ 30 fps

Rear Camera Features

Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Dual, 12MP + 12MP
Dual, 13MP + 2MP

Rear Camera 1 Resolution

12 MP
13 MP

Rear Camera 1 Type

f/2.2, Primary Camera
f/2.2 Primary Camera

Rear Camera 1 Lens

1.25 micrometre pixel size
-

Rear Camera 2 Resolution

12 MP
2 MP

Rear Camera 2 Type

, Telephoto Camera
f/2.4, Depth Camera

Rear Aperture

f/2.2
f/2.2

Rear Sensor

-
CMOS image sensor

Fingerprint Scanner

Yes
Yes

Fingerprint Scanner Position

Rear
Rear

Face Unlock

-
Yes
Turn your old phone into cash

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