In depth comparison and review of Realme C21 and CUBOT X20 Pro. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Realme C21 | CUBOT X20 Pro |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 165.2 mm | 157.1 mm | Realme C21 has greater height than CUBOT X20 Pro. |
| Width | 76.4 mm | 74.6 mm | Realme C21 has greater width than CUBOT X20 Pro. |
| Depth | 8.9 mm | 8.1 mm | CUBOT X20 Pro is narrower than Realme C21. |
| Weight | 190 g | 240.09 g | Realme C21 is lighter than Realme C21. |
| Body Colour | Cross black | Cross blue | Black | Blue | |
| Waterproof (Water-resistant) | - | - | |
| Connector Type | Micro-USB Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Realme C21 | CUBOT X20 Pro |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | LCD | - | |
| Screen Size (Display Size) | 6.5" | 6.3" | Realme C21 has larger screen size than CUBOT X20 Pro. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2340 x 1080 pixels | CUBOT X20 Pro has better screen resolution than Realme C21. |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 410 ppi | |
| Aspect Ratio | 20:9 | 19.5:9 | |
| Max Brightness | 420 cd/m² | 450 cd/m² | CUBOT X20 Pro has better display brightness than Realme C21. |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | - | 1300:1 | |
| Display Features | Mini-drop display | 2.5D Glass, Waterdrop Screen |
| PROCESSOR | Realme C21 | CUBOT X20 Pro |
|---|
| Processor Type (CPU) | MediaTek Helio G35 | MediaTek Helio P60 | |
|---|---|---|---|
| Processor Number | - | MT6771 | |
| Clock Speed | 2.3 GHz | 2 GHz | Realme C21 has higher clock speed than CUBOT X20 Pro. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | PowerVR GE8320 | Mali-G72 MP3 |
| MEMORY | Realme C21 | CUBOT X20 Pro |
|---|
| RAM | LPDDR4X SDRAM - 3 GB | 6 GB | CUBOT X20 Pro has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | CUBOT X20 Pro has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | Realme C21 | CUBOT X20 Pro |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | Realme C21 has better camera resolution than CUBOT X20 Pro. |
| Sensor Name | - | Sony Exmor RS IMX486 sensor | |
| Lens Aperture | F/2.2 | - | |
| Lens Construction | 5-element | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | - | |
| Special Effects | HDR | HDR | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | Snow, Food, Sunrise, Plants, Portrait, Blue sky, Beach, Flower, DOC mode, Building, Fruit, Autumn, Pet, Car | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost | Phase Detect Auto-Focus (PDAF), AI scene optimiser |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 20 Megapixel | CUBOT X20 Pro has better second camera resolution than Realme C21. |
|---|---|---|---|
| Sensor Name (2nd Camera) | - | Sony Exmor RS IMX350 sensor | |
| Lens Aperture (2nd Camera) | F/2.4 | - | |
| Lens Element Qty (2nd Camera) | 3-element | - | |
| Camera Functions (2nd Camera) | B&W lens | Depth camera |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 8 Megapixel | CUBOT X20 Pro has higher resolution third camera than Realme C21. |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Field of View (3rd Camera) | - | 125 degree(s) | |
| Camera Functions (3rd Camera) | Macro camera | - | |
| Camera Features (3rd Camera) | 4cm macro photography | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 13 Megapixel | CUBOT X20 Pro has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | F/2.2 | - | |
| Lens Element Qty (Front) | 3-element | - | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | - | |
| Face Recognition (Face ID) | Face recognition | - | Realme C21 has face detection. |
| BATTERY AND CHARGING | Realme C21 | CUBOT X20 Pro |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4000 mAh | Realme C21 has larger battery capacity than CUBOT X20 Pro. |
|---|---|---|---|
| Standby Time | - | 347 hours | |
| Talk Time | - | 1680 minutes | |
| Run Time Details | - | Standby: up to 347 hrs Playback (Music): up to 106 hrs Talk: up to 1680 min Playback (video (1080p)): up to 8.7 hrs Gaming (PUBG): up to 6.2 hrs |
| CELLULAR | Realme C21 | CUBOT X20 Pro |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | Android 9.0 Pie | |
| User Interface | Realme UI | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS |
| COMMUNICATIONS | Realme C21 | CUBOT X20 Pro |
|---|
| Data Transmission | FDD-LTE, TDD-LTE | FDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 5, Band 8 | - | |
| 3G UMTS Frequency | 2100, 850, 900 | - | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | Band 1, Band 3, Band 7, Band 8, Band 19, Band 20 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 upper, FDD 800 DD | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 4.2 |
| MEDIA | Realme C21 | CUBOT X20 Pro |
|---|
| Supported Digital Audio Standards | - | WAV, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio) | |
|---|---|---|---|
| Supported Digital Video Standards | - | AVI, MOV, 3GP, MP4 |
| FEATURES | Realme C21 | CUBOT X20 Pro |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, magnetometer, light sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
| Security Devices | Fingerprint reader | Face recognition | |
| Additional Phone Features | Super power saving mode, HyperEngine technology, Reverse charging | - |
| OTHERS | Realme C21 | CUBOT X20 Pro |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Power adapter, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | - |
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