Realme realme C21
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Realme

realme C21

Official name Realme · Device code RMX3201

The realme realme C21 is a 2020 Android device with 3GB RAM running API level 30. Released 6 years ago. Without a recent OS update, this device is unlikely to receive further security patches from Google.

3 GB RAMAndroid 1113 variantsarm64-v8a720 × 1600
Processor
Helio MT6765
Mediatek · 4-core · up to 2,300 MHz
Graphics
Imagination Tech PowerVR GE8320
OpenGL ES OpenGL ES 3.2
First indexed
2020-11-26
13 variants tracked
Quick verdict

Where this phone stands

Released in 2020, the realme C21 is now 6 years old — best considered as a budget or secondary device in 2026.

Weaknesses
Older Android release
Released 6 years ago. Without a recent OS update, this device is unlikely to receive further security patches from Google.
Specifications

The numbers, sorted

Display
720 × 1600 · 320 DPI
Chipset
Helio MT6765
CPU
4-core · up to 2,300 MHz
GPU
Imagination Tech PowerVR GE8320
RAM
3 GB RAM
Android
Android 11
Primary ABI
arm64-v8a
Secondary ABIs
arm64-v8a, armeabi-v7a, armeabi
OpenGL ES
OpenGL ES 3.2
Hardware features

169 declared capabilities, grouped

Pulled from the device's PackageManager.hasSystemFeature manifest. Useful for developers checking compatibility, or for buyers curious whether a specific sensor or DRM level is present.

android.hardware.bluetoothandroid.hardware.bluetooth_leandroid.hardware.usb.accessoryandroid.hardware.usb.hostandroid.hardware.wifiandroid.hardware.wifi.directandroid.hardware.wifi.passpointoppo.common.wifi.choose.auto_reconnectoppo.wirelesssetting.wifi.show.wfd.menu
Variant matrix

All 13 known variants

Different regional, carrier, and hardware revisions catalogued. Storage tiers and firmware ship independently per variant.

RegionVariant codeModelRAMStorage
TaiwanRMX3201T2RMX32013 GB RAM
TaiwanRMX3201TRRMX32013 GB RAM
TaiwanRMX3201TRRMX32013 GB RAM
GlobalRMX3201RMX32013 GB RAM
GlobalRMX3201EEARMX32013 GB RAM
GlobalRMX3201EEARMX32013 GB RAM
GlobalRMX3201RMX32013 GB RAM
TaiwanRMX3201T2RMX32013 GB RAM
GlobalRMX3201RMX32013 GB RAM
GlobalRMX3201RMX32013 GB RAM
AustraliaRMX3201RURMX32013 GB RAM
AustraliaRMX3201RURMX32013 GB RAM
TaiwanRMX3201T2RMX32013 GB RAM
Catalog footprint

How much of this phone we've indexed

13
Variants tracked
Regional, carrier, firmware variants
median 4
169
Hardware features
PackageManager manifest
median 132
33
System libraries
Bundled .so libraries
median 118
131
OpenGL extensions
GPU extension set
median 64