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Compare 3 products

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Oppo A15 Mobile Phone
Oppo A15
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realme C21 Mobile Phone
realme C21
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vivo Y21 Mobile Phone
vivo Y21
Available colors
Editiorial reviews
5
3.3 out of 5
3 user ratings
5 stars
0 %
4 stars
33 %
3 stars
66 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
5
5 editorial reviews
The realme C21 (Optus locked) is a $199 4G smartphone offering terrific features for the price. It is even better with the $30 Optus credit.Read more
As smartphones become more specialized for certain functions like gaming, along comes the Realme C21, which focuses on basic uses.Read more
Smartphones can range anywhere between $100 to several thousands of dollars and of course, they greatly vary in terms of functionality and performance.Read more
Read editorial reviews
1
1 editorial reviews
vivo included a large 5000mAh battery with an 18W Fast-Charge capacity via its Type-C charging connection to offer a hassle-free experience.Read more
Read editorial reviews
User rating
44
4.3 out of 5
44 user ratings
5 stars
47 %
4 stars
36 %
3 stars
15 %
2 stars
0 %
1 stars
0 %
45
4.3 out of 5
45 user ratings
5 stars
44 %
4 stars
44 %
3 stars
11 %
2 stars
0 %
1 stars
0 %
35
4.1 out of 5
35 user ratings
5 stars
40 %
4 stars
28 %
3 stars
28 %
2 stars
2 %
1 stars
0 %

Hardware

Operating system
ColorOS 7.2
Android 10Android 5.1
CPU clock speed2.3 GHz2.3 GHz1.3 GHz
CPU modelMediaTek Helio P35MediaTek Helio G35Mediatek MT6580
RAM memory3 GB
  • 3 GB
  • 4 GB
1 GB
CPU cores
N/A
8-coreQuad-core
GPU model
N/A
N/A
ARM Mali-400 MP

Display

Screen size6.52 in6.5 in4.5 in
Panel typeLCDLCDLCD
Resolution1600 x 720 px1600 x 720 px854 x 480 px
TechnologyLCDLCDIPS LCD
Pixel density269.0 ppi
N/A
218.0 ppi
Number of colors
N/A
N/A
16.7M
Multi touch
N/A
N/A
yes

Rear camera

Primary sensor resolution13.0 Mpx13.0 Mpx5.0 Mpx
Resolution (second camera)2.0 Mpx2.0 Mpx
N/A
Resolution (third camera)2.0 Mpx2.0 Mpx
N/A
Lens aperture (second camera)F/2.4F/2.4
N/A
Lens aperture (third camera)F/2.4F/2.4
N/A
Focus adjustmentAutomaticAutomatic
N/A
Highest video resolution
N/A
N/A
1280 x 720 px
Autofocus
N/A
N/A
yes
Burst Mode
N/A
N/A
yes
Digital Image Stabilization
N/A
N/A
yes
Digital zoom
N/A
N/A
yes
Face detection
N/A
Face recognitionyes
Geo-tagging
N/A
N/A
yes
HDR Capture
N/A
N/A
yes
LED Flash
N/A
N/A
yes
Panorama
N/A
N/A
yes
Touch focus
N/A
N/A
yes

Front camera

Primary resolution5.0 Mpx5.0 Mpx2.0 Mpx
Lens apertureF/2.4F/2.2
N/A
Face detection
N/A
Face recognitionyes

Storage

Internal storage32 GB
  • 32 GB
  • 64 GB
16 GB
Memory card reader
N/A
N/A
yes
Maximum card storage
N/A
N/A
128GB
Types of memory card supported
N/A
N/A
microSD

Design

Colour of product
  • Blue mystery
  • Dynamic black
Cross blue
  • Gold
  • White
Material
N/A
N/A
Plastic

Dimensions

Height6.46 in6.5 in5.15 in
Width2.97 in3.01 in2.61 in
Depth0.31 in0.35 in0.36 in
Weight6.17 oz6.7 oz5.54 oz

Connectivity

Sim card sizeNano SIMNano SIMMicro-SIM
Dual sim support
N/A
N/A
yes
Bluetooth
N/A
N/A
yes
Bluetooth version
N/A
N/A
4.0
Headphone connection
N/A
N/A
3.5 mm
Type of USB connector
N/A
N/A
Micro-USB
USB On-The-Go (OTG)
N/A
N/A
yes

Cellular

Data transmission
  • FDD-LTE
  • TDD-LTE
  • FDD-LTE
  • TDD-LTE
HSPA+
Navigation system
  • GPS
  • A-GPS
  • GLONASS
  • BeiDou
  • Galileo
  • GPS
  • A-GPS
  • GLONASS
  • BeiDou
GPS
UMTS frequences
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 850 MHz
  • 900 MHz
  • 2100 MHz
Wireless network (Wi-Fi)
N/A
N/A
yes
2G GSM
N/A
N/A
yes
GSM frequencies
N/A
N/A
  • 850 MHz
  • 900 MHz
  • 1800 MHz
Mobile hotspot
N/A
N/A
yes

Battery

Battery capacity4230.0 mAh5000.0 mAh1900.0 mAh
Battery type
N/A
N/A
Lithium ion
Standby time
N/A
N/A
180.0 h
Talk time
N/A
N/A
5.0 h

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Often compared with realme C21

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Often compared with vivo Y21

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