vivo X21i vs Xiaomi Mi 8

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Comparing the vivo X21i vs Xiaomi Mi 8 across performance, display, camera, battery and storage to help determine the better smartphone.

Here is the summary of the results:

Performance: Xiaomi Mi 8 runs at a higher processing speed of 2.8 GHz, while vivo X21i runs at 2.0 GHz, making Xiaomi Mi 8 the better performer.


Display: vivo X21i offers a screen size of 6.28 inches, while Xiaomi Mi 8 offers 6.21 inches, making vivo X21i the larger display of the two. vivo X21i features a Super AMOLED display compared to Xiaomi Mi 8's AMOLED, making vivo X21i the better display of the two.


Rear Camera: Both vivo X21i and Xiaomi Mi 8 feature a 12 MP primary rear camera.


Front Camera: vivo X21i offers a higher front camera resolution with 24 MP, while Xiaomi Mi 8 offers 20 MP, making vivo X21i better for front camera photography.


Battery: Xiaomi Mi 8 offers a higher battery capacity with 3400 mAh, while vivo X21i offers 3245 mAh, making Xiaomi Mi 8 better for longer battery life.


Storage: Both vivo X21i and Xiaomi Mi 8 offer the same internal storage of 64 GB.

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vivo X21i
₹28,790
(Not Released in India)
Xiaomi Mi 8
₹28,490
(Not Released in India)
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Summary

Spec Score

75%
80%

Release Date

20 Sep, 2019
10 Jul, 2019

Performance

MediaTek Helio P60
Snapdragon 845
Octa Core (upto 2 GHz)
Octa Core (upto 2.8 GHz)
6 GB RAM
6 GB RAM

Display

6.28 inches (15.95 cm)
6.21 inches (15.77 cm)
Super AMOLED
AMOLED
1080x2160 px (FHD+)
1080x2248 px (FHD+)

Rear Camera

12 MP
Primary Camera
12 MP
Primary Camera
5 MP
Camera
12 MP
Camera

Front Camera

24 MP
20 MP

Battery

3245 mAh
3400 mAh
Fast Charging
Quick Charging

Storage

64 GB
64 GB

User Ratings

N/A
4.5/5
(2 ratings)

Video

There are no videos available for the device.
Videos
3 More Videos

User Feedback

General

Operating System

Android v8.1 (Oreo)
Android v8.1 (Oreo)

Custom UI

Funtouch OS
MIUI

Performance

Performance Rating

Good
Good

Chipset

MediaTek Helio P60
Qualcomm Snapdragon 845

Processor

Octa core

2 GHz, Quad core, Cortex A73 2 GHz, Quad core, Cortex A53
Octa core

2.8 GHz, Quad core, Kryo 385 1.8 GHz, Quad core, Kryo 385

Architecture (The higher, the better)

64 bit
64 bit

Graphics (GPU)

Mali-G72 MP3
Adreno 630

RAM

6 GB
6 GB

RAM Type

N/A
LPDDR4X

Display

Display Rating

Best In Class
Excellent

Display Type

Super AMOLED
AMOLED

Screen Size

6.28 inches  (15.95 cm)
6.21 inches  (15.77 cm)

Resolution

1080x2160 px (FHD+)
1080x2248 px (FHD+)

Aspect Ratio

19:9
18.7:9

Pixel Density

385 ppi
402 ppi

Screen to Body Ratio (calculated)

88.06 %
83.77 %

Screen Protection

N/A
Corning Gorilla Glass v5

Bezel-less Display

Yes
Yes with notch

Design

Height

154.3 mm
154.9 mm

Width

74.9 mm
74.8 mm

Thickness

6.9 mm
7.6 mm

Weight

159 grams
175 grams

Rear Camera

Rear Camera Rating

Good
Very Good

Resolution

12 MP
Primary Cameraf/1.8
12 MP
Primary Cameraf/1.8IMX363 Exmor-RS CMOS Sensor 1.4µm pixel size
5 MP
f/2.4
12 MP
f/2.41µm pixel size

Autofocus

Yes
Yes Phase Detection Autofocus

OIS

N/A
Yes

Flash

Yes LED Flash
Yes Dual-color LED Flash

Image Resolution

4000 x 3000 Pixels
4000 x 3000 Pixels

Settings

Exposure compensation
Exposure compensation ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

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

Video Recording

N/A
3840x2160 @ 30 fps
1920x1080 @ 30 fps
1280x720 @ 30 fps

Front Camera

Front Camera Rating

Very Good
Very Good

Resolution

24 MP
f/2.0 Primary Camera
20 MP
Primary Camera

Battery

Battery Rating

Very Good
Very Good

Capacity

3245 mAh
3400 mAh

Battery Type

Li-ion
Li-Polymer

Quick Charging

Yes Fast Charging
Yes Quick Charging v4.0

Storage

Internal Storage

64 GB
64 GB / 128 GB / 256 GB

Expandable Storage

Yes Up to 256 GB
No

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

SIM Type

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

Network Support

5G Not Supported 4G
5G Not Supported 4G

VoLTE

Yes
Yes

SIM 1

4G Bands:
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)
4G Bands:
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) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20)

SIM 2

4G Bands:
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)
4G Bands:
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) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20)

Wi-Fi

Yes Wi-Fi 4 (802.11 b/e/n) 5GHz
Yes Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz MIMO

Wi-Fi Features

Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v4.2
Yes v5.0

GPS

Yes with A-GPS
Yes with A-GPS Glonass

NFC

N/A
Yes

Multimedia

Audio Jack

3.5 mm
USB Type-C

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

Rear
Rear

Other Sensors

Light sensor Proximity sensor Accelerometer Compass Gyroscope
Light sensor Proximity sensor Accelerometer Barometer Compass Gyroscope