Summary

Technical sheet of realme C21

Description

Pros
Cons
  • Battery
  • Price
  • External Storage
  • Camera quality
  • No 5G

Finding the best price for the realme C21 is no easy task. Here you will find where to buy the realme C21 at the best price. Prices are continuously tracked in over 140 stores so that you can find a reputable dealer with the best price

Brand

Brand realme
Aliases RMX3201
Best Sellers
Smartphones by realme

realme C21 prices

Versions and prices
realme C21 SE. Asia · 3GB · 32GB
realme C21 SE. Asia · 4GB · 64GB
realme C21 India · 3GB · 32GB
realme C21 India · 4GB · 64GB
realme C21 Global · 3GB · 32GB
realme C21 Global · 4GB · 64GB $ 97
Read More

Release Date

Release dateMarch 2021, 3 years ago

Related

Predecessor
Successors

Design & Materials of realme C21

Image gallery

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Structure

Size
76.4 mm165.2 mm8.9 mm
Print 3D Model
Weight 190 g
Usable surface 81 %
Materials Plastic
Colors
Black
Blue

Screen

Diagonal
6.5"
Type LCD IPS
Aspect Ratio 20:9
Resolution 720 x 1600 px HD+
Density 269 ppi Medium Density
Others
  • Water Drop Notch
  • Touch sampling rate 120 Hz
  • Brightnes 400 cd/m² (typ)
  • 1500:1 contrast ratio
  • TÜV Rheinland Eye Comfort Certification
  • Scratch resistant
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Frameless
Best big screen mobilesBest phones with IPS screen
User reviews
Is it a drop-resistant and scratch-resistant smartphone?
7.4

5 reviews

Do you think it's a nice phone?
7.2

5 reviews

Is it comfortable?
7.0

5 reviews

Can you see it well in the sunlight?
6.0

5 reviews

Performance & Hardware of realme C21

Processor

Model Mediatek Helio G35
CPU 8x CortexA53 2.3 GHz
Type Octa-Core
Nanometer 12 nm
Frequency 2.3 GHz
64 Bits Yes
More smartphones with MediaTek Helio G35 processor

Graphics

GPU IMG PowerVR GE8320 680MHz

RAM

RAM 4 GB
Type LPDDR4X RAM
More smartphones with 4GB RAM memory

Antutu

Score
110.490 Antutu v8
Overall performance better than 49% of devices

Storage

Capacity 64 GB
Type eMMC 5.1 Storage
SD Slot Yes , Independent SD slot
More smartphones with 64GB of internal storage

Security

Fingerprint Yes, in the back

Sensors

Fingerprint No
Proximity Yes
Light sensor Yes
Accelerometer Yes
Gravity Yes
Magnetometer Yes
Others
Notifications LED --
Cooling system No
Gaming buttons No
User reviews
Does it have good sound?
6.4

5 reviews

Does it work smoothly in everyday use?
3.8

5 reviews

What's your experience been with demanding games?
2.4

5 reviews

Camera of realme C21

Triple rear camera

Standard
1
Resolution 13 Mpx
Sensor --
Type CMOS
Aperture ƒ/ 2.2
ISO --
Pixel size 1.12 µm
Black & white
2
Resolution
2 Mpx
Sensor
--
Type
--
Aperture
ƒ/ 2.4
Pixel size
1.75 µm
3
Resolution
2 Mpx
Sensor
--
Type
--
Aperture
ƒ/ 2.4
Pixel size
1.75 µm
Flash LED
Optical Stabilisation No
Slow Motion Video Yes, 90 fps
Features
  • Digital zoom
  • Triple camera
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
More smartphones with lens modelMore smartphones with LED

Selfie

Resolution 5 Mpx
Sensor --
Type --
Aperture ƒ/ 2.2
Pixel size 1.12 µm
User reviews
Quality of daytime photos
6.0

5 reviews

Quality of nighttime photos
2.4

5 reviews

Quality of selfies
5.2

5 reviews

Does it have a powerful flash?
6.0

5 reviews

Kimovil Frequency Checker

Network compatibility

Connectivity of realme C21

Bands

4G LTE B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B20 (800), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500)
3G B1 (2100), B5 (850), B8 (900)
2G B2 (1900), B3 (1800), B5 (850), B8 (900)

SIM card

TypeDual SIM Dual Standby (Nano SIM + Nano SIM)

SIM cards (MiniSIM) can be cut to MicroSIM, MicroSIM can be cut to NanoSIM and a SIM can even be cut to a NanoSIM (although not recommended). Download this SIM Cutting Template and forget about having to ask your operator for a new SIM...

Wi-Fi

Standards 802.11b , 802.11g , 802.11n
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct

Bluetooth

Version Bluetooth 5.0 LELow energy consumption
Profiles
  • A2DP (Advanced Audio Distribution Profile)
  • EDR (Enhanced Data Rate)
  • LE (Low Energy)

Navigation

Supports GPS, A-GPS, GLONASS, Beidou

USB

Charging Yes
Mass Storage Yes
USB On-The-Go (OTG) Yes

SAR

European measurement 0.740 W/Kg on head, 1.151 W/Kg on body

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

What is the SAR of realme C21?
Others
NFC
Yes
Audio Jack
Yes
Radio FM
Yes
Computer sync
Yes
OTA sync
Yes
Tethering.
Yes
VoLTE
Yes
User reviews
Does it have good coverage for calls?
7.0

5 reviews

Quality of the GPS
6.6

5 reviews

And the WiFi?
6.6

5 reviews

Battery of realme C21

Capacity
5000 mAh
Type Lithium
Fast charge Yes , 10.0W
Others
  • Reverse charging
  • Non-removable
User reviews
How long does the battery last?
  • 20%
    Two days or more
  • 60%
    More than one day
  • 20%
    One day
  • 0%
    Less than a day
  • 0%
    Less than half day

5 reviews

Software of realme C21

Software

Operating System Android 10 Q
RealmeUI (Android 10)
Google Services (official) Yes
More smartphones with RealmeUI (Android 10) operating system
User reviews
Did it come with preinstalled applications?
  • 0%
    It comes with a clean operating system
  • 20%
    It has preinstalled apps but they don't bother me
  • 80%
    It has preinstalled apps that I can't uninstall

5 reviews

Do you regularly receive updates?
  • 25%
    Every two months or less
  • 0%
    Every six months
  • 0%
    Once a year
  • 75%
    Never

5 reviews

User reviews about the realme C21

Overall satisfaction
4.7
  • 1
  • 0
  • 2
  • 1
  • 1
5 reviews
  • Screen6.9
  • Performance4.2
  • Camera4.9
  • Connectivity6.7
  • Battery8.8
Want to comment on the realme C21?

It'll only take a minute, you'll help people decide.

Latest reviews added

  • Auto
    Tau se

    Bad phone for a teenager or adult but good for a grandparent

    Pros
    • Battery
    • Battery
    Cons
    • No 5g
    • Camera quality
    • No width
    • Huge frames
    • 1.7
    • Screen3.5
    • Performance0.6
    • Camera3.0
    • Connectivity4.6
    • Battery7.0
  • Auto
    Bad and expensive for what it offers

    It gets stuck in daily use although it is bad it comes with many system bugs it is not worth the purchase for a little more price you can find better alternatives

    Pros
    • Battery
    Cons
    • Without 5G
    • CPU
    • Camera
    • Price
    • 3.5
    • Screen7.7
    • Performance3.0
    • Camera3.2
    • Connectivity4.6
    • Battery9.0
  • Auto
    Rough but cheap

    Bad camera for photos at night, bad front camera, slow for daily use, it jams with anything, the good thing is, the battery is easy, almost two days, but for playing or something like that, it's not easy.

    Pros
    • Cheap
    • Battery
    Cons
    • cpu
    • Camera
    • Without 5G
    • Bad memory
    • 4.6
    • Screen7.0
    • Performance3.0
    • Camera3.7
    • Connectivity5.6
    • Battery9.0

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Last update
April 17, 2024
State
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Latest changes
  • New opinion 1 month ago
  • Pros & Cons 3 months ago
6.4
Ki Cost-effective
Score
  • 5.3 Design & Materials
  • 5.2 Performance & Hardware
  • 5.0 Camera
  • 5.7 Connectivity
  • 6.9 Battery
What is a Ki score?
Ki is an automatic score based on the specifications and prices of devices. It is calculated using over 200 variables to rank smartphones, tablets and other devices from best to worst.
How do we calculate the Ki?

In this case, to determine the score we evaluate 5 general aspects:

  • Design and screen
  • Hardware and performance
  • Camera
  • Connectivity
  • Battery

Once these 5 factors have been rated, we introduce the price variable. This means that any two devices with the same ratings get a different Ki score for quality vs price.

Even a device objectively worse than another may have a higher Ki score if it has a better price.

Does the Ki score change?

The Ki varies as time goes by. As new devices with better specifications enter the market the Ki score of older devices will go down, always being compensated of their decrease in price.