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Alcatel TRU Mobile Phone
Alcatel TRU
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realme C21 Mobile Phone
realme C21
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TCL T9 Mobile Phone
TCL T9
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
User rating
16
4.1 out of 5
16 user ratings
5 stars
37 %
4 stars
31 %
3 stars
31 %
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 %
44
4.2 out of 5
44 user ratings
5 stars
36 %
4 stars
43 %
3 stars
20 %
2 stars
0 %
1 stars
0 %

Hardware

Operating systemAndroid 5.0Android 10Android 5.1
CPU clock speed1.1 GHz2.3 GHz1.1 GHz
CPU coresQuad-core8-coreQuad-core
CPU modelQualcomm Snapdragon 210 MSM8909MediaTek Helio G35Qualcomm Snapdragon 210 MSM8909
GPU modelQualcomm Adreno 304
N/A
Qualcomm Adreno 304
RAM memory1 GB
  • 3 GB
  • 4 GB
1 GB

Display

Screen size5.5 in6.5 in4.0 in
Number of colors16.7M
N/A
16.7M
Panel typeLCDLCDLCD
Resolution854 x 480 px1600 x 720 px1280 x 720 px
Pixel density196.0 ppi
N/A
367.0 ppi
Screen materialDragonTrail Glass
N/A
N/A
Multi touchyes
N/A
yes
Technology
N/A
LCDIPS LCD

Rear camera

Primary sensor resolution5.0 Mpx13.0 Mpx8.0 Mpx
Highest video resolution1280 x 720 px
N/A
1920 x 1080 px
Autofocusyes
N/A
yes
Burst Modeyes
N/A
N/A
Digital zoomyes
N/A
N/A
Face detectionyesFace recognition
N/A
Geo-taggingyes
N/A
yes
HDR Captureyes
N/A
yes
LED Flashyes
N/A
yes
Panoramayes
N/A
yes
Smile detectionyes
N/A
N/A
Touch focusyes
N/A
N/A
Resolution (second camera)
N/A
2.0 Mpx
N/A
Resolution (third camera)
N/A
2.0 Mpx
N/A
Lens aperture (second camera)
N/A
F/2.4
N/A
Lens aperture (third camera)
N/A
F/2.4
N/A
Focus adjustment
N/A
Automatic
N/A

Front camera

Primary resolution2.0 Mpx5.0 Mpx2.0 Mpx
Face detectionyesFace recognition
N/A
Lens aperture
N/A
F/2.2
N/A

Storage

Internal storage8 GB
  • 32 GB
  • 64 GB
8 GB
Memory card readeryes
N/A
yes
Maximum card storage32GB
N/A
128GB
Types of memory card supportedmicroSD
N/A
microSD

Dimensions

Height5.55 in6.5 in6.26 in
Width2.81 in3.01 in3.3 in
Depth0.39 in0.35 in0.63 in
Weight5.89 oz6.7 oz8.22 oz

Cellular

Wireless network (Wi-Fi)yes
N/A
yes
Data transmissionHSPA+
  • FDD-LTE
  • TDD-LTE
HSDPA
Navigation systemGPS
  • GPS
  • A-GPS
  • GLONASS
  • BeiDou
GPS
2G GSMyes
N/A
yes
GSM frequencies
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
N/A
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
UMTS frequences
  • 700 MHz
  • 1700 MHz
  • 1900 MHz
  • 2100 MHz
  • 2100 MHz
  • 850 MHz
  • 900 MHz
  • 850 MHz
  • 900 MHz
  • 1900 MHz
  • 2100 MHz
4G LTEyes
N/A
yes
LTE frequencies
  • 850 MHz
  • 1700 MHz
  • 1900 MHz
  • 2100 MHz
N/A
  • 800 MHz
  • 1800 MHz
  • 2100 MHz
  • 2600 MHz
  • 2300 MHz
  • 2500 MHz
Mobile hotspotyes
N/A
yes
CDMA frequences
N/A
N/A
800 MHz

Battery

Replaceable batteryyes
N/A
N/A
Battery typeLithium ion
N/A
Lithium ion
Battery capacity2000.0 mAh5000.0 mAh2600.0 mAh
Standby time400.0 h
N/A
N/A
Talk time14.0 h
N/A
N/A

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