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realme C21 vs Xiaomi Redmi 9

3.01 in
6.5 in
realme C21 Mobile Phone
realme C21
3.03 in
6.43 in
Xiaomi Redmi 9 Mobile Phone
Xiaomi Redmi 9
Available colors
Editiorial 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
6
3.8 out of 5
3 user ratings
5 stars
0 %
4 stars
100 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
45
4.3 out of 5
45 user ratings
5 stars
44 %
4 stars
44 %
3 stars
11 %
2 stars
0 %
1 stars
0 %
38
4.0 out of 5
38 user ratings
5 stars
28 %
4 stars
44 %
3 stars
26 %
2 stars
0 %
1 stars
0 %

Video Comparisons (2)

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Full Comparison

Hardware

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
CPU clock speed2.3 GHz2.0 GHz
CPU cores8-core8-core
CPU modelMediaTek Helio G35MediaTek Helio G80
RAM memory
  • 3 GB
  • 4 GB
3 GB

Display

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Screen size6.5 in6.53 in
Resolution1600 x 720 px2340 x 1080 px

Rear camera

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Primary sensor resolution13.0 Mpx13.0 Mpx
Resolution (second camera)2.0 Mpx8.0 Mpx
Resolution (third camera)2.0 Mpx5.0 Mpx
Lens aperture (second camera)F/2.4F/2.2
Lens aperture (third camera)F/2.4F/2.4
Focus adjustmentAutomaticAutomatic

Front camera

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Primary resolution5.0 Mpx8.0 Mpx
Lens apertureF/2.2F/2.0
Focus adjustmentAutomaticAutomatic

Storage

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Internal storage
  • 32 GB
  • 64 GB
  • 32 GB
  • 64 GB

Design

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Colour of productCross blue
  • Carbon grey
  • Ocean green
  • Sunset purple

Dimensions

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Height6.5 in6.43 in
Width3.01 in3.03 in
Depth0.35 in0.36 in
Weight6.7 oz6.98 oz

Connectivity

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Sim card sizeNano SIMNano-SIM

Cellular

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Data transmission
  • FDD-LTE
  • TDD-LTE
  • GPRS
  • EDGE
  • HSDPA
  • HSUPA
  • HSPA+
  • VoLTE
  • FDD-LTE
  • TDD-LTE
Navigation system
  • GPS
  • A-GPS
  • GLONASS
  • BeiDou
  • GPS
  • A-GPS
  • GLONASS
  • BeiDou
UMTS frequences
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 1700 MHz
  • 1900 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz

Battery

realme C21realme C21
Xiaomi Redmi 9Xiaomi Redmi 9
Battery capacity5000.0 mAh5020.0 mAh

Pros & Cons

Pros
      Cons

          Often compared with realme C21

          Often compared with Xiaomi Redmi 9