UMIDIGI Z2 vs vivo X21i: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: UMIDIGI Z2 vs vivo X21i. The complete information of specifications to decide which to buy.

Compare
UMIDIGI Z2UMIDIGI Z2Global · 6GB · 64GB
vivo X21ivivo X21iChina · 6GB · 64GB
Technical data sheets

Basics
UMIDIGI Z2
UMIDIGI Z2
Global · 6GB · 64GB
View datasheet
vs
vivo X21i
vivo X21i
China · 6GB · 64GB
View datasheet
vs

Score
Ki Cost-effective
Score		 -- Not available -- Not available
Design and Screen score --Design & Materials --Design & Materials
Performance and Hardware score --Performance & Hardware --Performance & Hardware
Camera score --Camera --Camera
Connectivity score -- Connectivity -- Connectivity
Battery score --Battery --Battery

User reviews
User score
5.6
24 reviews
--
No user reviews

Technical specifications of the UMIDIGI Z2 vs vivo X21i

Specs UMIDIGI Z2 price compare UMIDIGI Z2
Global · 6GB · 64GB 		where to buy vivo X21i vivo X21i
China · 6GB · 64GB
Inches 6.2" 6.28"
Resolution FHD+ FHD+
Usable surface 84% useful 85% useful
Aspect Ratio 19:9 18:9
Dimensions 74.4 mm
153.4 mm
8.3 mm 		74.8 mm
154.5 mm
7.4 mm
Weight 165 g 156 g
Micro Helio P23
Octa-Core 		Helio P60
Octa-Core
RAM 6 GB RAM 6 GB RAM
Storage 64 GB 64 GB
AnTuTu 83.212
v? 		130.000
v?
Battery 4050 mAh 3170 mAh
Main Camera 1
16 Mpx · ƒ/1.7
S5K3P8
2 		1
12.2 Mpx · ƒ/1.8

2
Selfie Camera SELF 16 Mpx · ƒ/2.0 SELF 12.2 Mpx · ƒ/--
Bands
OS Android 8.0 Oreo Android 8.0 Oreo

Brand
Brand UMiDIGI vivo
Aliases -- --

Release Date
Release date May 2018,
5 years ago 		May 2018,
5 years ago
State Not available Not available
Market Global China

Design & Materials

Structure

UMIDIGI Z2
vivo X21i
UMIDIGI Z2
vivo X21i
Size
74.4 mm • 153.4 mm • 8.3 mm
See more details
 Print 3D Model
74.8 mm • 154.5 mm • 7.4 mm
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 Print 3D Model
Weight 165 g 156 g
Usable surface 84 % 85 %
Materials Aluminium alloy Aluminium alloy
Resistance - -
Colors
Black

Blue
Black

Champagne

Rose-gold

Screen
Diagonal 6.2" 6.28"
Type LCD IPS Super AMOLED
Aspect Ratio 19:9 18:9
Resolution FHD+
1080 x 2284 px 		FHD+
1080 x 2280 px
Density 407 Pixels per inch 402 Pixels per inch

Others

Others
  • Wide screen notch
  • Scratch resistant
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Frameless
  • Medium-sized Notch
  • Capacitive
  • Multi-touch
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
5.6
--
Do you think it's a nice phone?
7.8
--
Is it comfortable?
7.8
--
Can you see it well in the sunlight?
6.7
--
Number of reviews
24 reviews
--

Performance & Hardware

Processor
Model MediaTek Helio P23 (MT6763V) MediaTek Helio P60 (MT6771)
CPU 4x Cortex-A53 2.0 GHz + 4x Cortex-A53 1.5 GHz 4x Cortex-A73 2.0 GHz + 4x Cortex-A53 2.0 GHz
Type Octa-Core Octa-Core
Manufacturing 16 nm 12 nm
64 Bits Yes Yes

Graphics
GPU ARM Mali-G71 MP2 ARM Mali-G72 MP3 700MHz

RAM
RAM 6 GB 6 GB
Type LPDDR4X RAM LPDDR4X RAM

Antutu
Score
83.212
Antutu v?
Overall performance better than 29% of devices
See more details
130.000
Antutu v?
Overall performance better than 28% of devices
See more details

Storage
Capacity 64 GB 64 GB
Type -- --
SD Slot Yes ,
Slot for SD or second SIM card 		Yes ,
Independent SD slot

Security
Fingerprint Yes, in the back Yes, in the back

Sensors
Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope

Audio

Audio
-
-

Others
Notifications LED -- --
Cooling system No No
Gaming buttons No No

User reviews

Does it have good sound?
6.6
--
Does it work smoothly in everyday use?
6.4
--
What's your experience been with demanding games?
6.3
--
Number of reviews
24 reviews
--

Camera

Main
No. of cameras Double rear camera Double rear camera
1
Camera type

Standard

Standard
Resolution 16 Mpx 12.2 Mpx
Sensor Samsung S5K3P8 Unknown
Type ISOCELL CMOS
Aperture ƒ/ 1.7 ƒ/ 1.8
ISO -- --
Pixel size 1.00 µm --
Pixel Binning 1-4 (2x2) --
Sensor size 1/3.1" --
2
Camera type


Portrait mode (depth)
Resolution
8 Mpx
--
Sensor
Unknown
Unknown
Type
--
--
Aperture
ƒ/ --
ƒ/ --
Pixel size
--
--
Pixel Binning
--
--
Sensor size
--
--

Features
Flash Dual LED Dual LED
Optical Stabilisation No Yes
Slow Motion Video No,
30 fps 		Yes,
120 fps
Others
  • 4K Video
  • Digital zoom
  • Dual camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Dual front camera
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Digital zoom
  • Dual camera
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer

Selfie
SELF
Camera type

Dedicated

Dedicated
Resolution 16 Mpx 12.2 Mpx
Sensor Sony IMX371 Exmor Samsung S5K2L8
Type CMOS BSI ISOCELL
Aperture ƒ/ 2.0 ƒ/ --
Pixel size 1.00 µm 1.28 µm
Pixel Binning -- --
Sensor size 1/3" 1/2.8"
Others
--
--

DxOMark Score
DxOMark Score -- --

User reviews

Quality of daytime photos
7.0
--
Quality of nighttime photos
5.0
--
Quality of selfies
6.7
--
Does it have a powerful flash?
6.3
--
Number of reviews
24 reviews
--

Connectivity

Network compatibility

5G -- --
4G LTE
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B1 (2100)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B8 (900)
  • B34 (TDD 2100)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
3G
  • B1 (2100)
  • B2 (1900)
  • B5 (850)
  • B8 (900)
  • B10 (1700)
  • B1 (2100)
  • B2 (1900)
  • B5 (850)
  • B8 (900)
  • B34 (TD 2000)
  • B39 (TD 1900+)
2G
  • CDMA BC0 (800)
  • CDMA BC1 (1900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • CDMA BC0 (800)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card
Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM

Wi-Fi
Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct

Bluetooth
Version Bluetooth 4.0 Bluetooth 5.0
Others
  • A2DP (Advanced Audio Distribution Profile)
  • HID (Human Interface Profile)
  • A2DP (Advanced Audio Distribution Profile)

Navigation
Navigation
  • GPS
  • A-GPS
  • GLONASS
  • GPS
  • A-GPS
  • GLONASS
  • Beidou

USB
USB
  • Charging
  • Host
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C

SAR
European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

 -- --
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

 -- --

Others
Others
  • Radio FM
  • Computer sync
  • OTA sync
  • Infrared
  • VoLTE
  • Audio Jack
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE

User reviews

Does it have good coverage for calls?
7.0
--
Quality of the GPS
6.5
--
And the WiFi?
7.0
--
Number of reviews
24 reviews
--

Battery

Battery
Capacity
4050 mAh
See more details
3170 mAh
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Type Li-Polymer Li-Polymer
Fast charge Yes Yes
Others
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 8%
    Less than half day
  • 17%
    Less than a day
  • 46%
    One day
  • 25%
    More than one day
  • 4%
    Two days or more
--
Number of reviews
24 reviews
--

Software

Software
Operating System
  • Android 8.1 Oreo
    Android 8.0 Oreo, 6 years ago
  • Funtouch OS (Android 8.1 Oreo)
    Android 8.0 Oreo, 6 years ago
Google Services (official) Yes No

User reviews

Did it come with preinstalled applications?
  • 43%
    It comes with a clean operating system
  • 39%
    It has preinstalled apps but they don't bother me
  • 17%
    It has preinstalled apps that I can't uninstall
--
Do you regularly receive updates?
  • 32%
    Never
  • 5%
    Once a year
  • 37%
    Every six months
  • 26%
    Every two months or less
--
Number of reviews
24 reviews
--
Prices
Prices unavailable
Prices unavailable