In depth comparison and review of Huawei P20 and Realme C21. 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 | Huawei P20 | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 149.1 mm | 165.2 mm | Realme C21 has greater height than Huawei P20. |
| Width | 70.8 mm | 76.4 mm | Realme C21 has greater width than Huawei P20. |
| Depth | 7.65 mm | 8.9 mm | Huawei P20 is narrower than Huawei P20. |
| Weight | 165 g | 190 g | Huawei P20 is lighter than Huawei P20. |
| Body Colour | Black | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.26 W/kg (body), 0.76 W/kg (head) | - | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Huawei P20 | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | TFT | LCD | |
| Screen Size (Display Size) | 5.8" | 6.5" | Realme C21 has larger screen size than Huawei P20. |
| Screen Resolution (Display Resolution) | 2244 x 1080 pixels | 1600 x 720 pixels | Huawei P20 has better screen resolution than Realme C21. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 428 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Display Features | FullView Display | Mini-drop display |
| PROCESSOR | Huawei P20 | Realme C21 |
|---|
| Processor Type (CPU) | Hisilicon Kirin 970 - with i7 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2.36 GHz | 2.3 GHz | Huawei P20 has higher clock speed than Realme C21. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Huawei P20 has 64-bit architecture. |
| Graphics System (GPU) | - | PowerVR GE8320 |
| MEMORY | Huawei P20 | Realme C21 |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 3 GB | Huawei P20 has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 32 GB | Huawei P20 has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | Huawei P20 | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 13 Megapixel | Realme C21 has better camera resolution than Huawei P20. |
| Sensor Type | RGB CMOS | - | |
| Lens Aperture | F/1.8 | F/2.2 | Huawei P20 has better lens aperture than Huawei P20. |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 2x | 4x | Realme C21 has better digital zoom than Huawei P20. |
| Special Effects | - | HDR | |
| Camera Modes | Auto scene recognition, 3D Portrait Lighting | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | Dual tone LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K), Super slow motion video 1920 x 1080 (1080p) at 960 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Leica Dual-Kamera, 2x Hybrid Zoom | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 20 Megapixel | 2 Megapixel | Huawei P20 has better second camera resolution than Realme C21. |
|---|---|---|---|
| Sensor Type (2nd Camera) | Monochrome CMOS | - | |
| Lens Aperture (2nd Camera) | F/1.6 | F/2.4 | Huawei P20 has better second camera lens aperture than Huawei P20. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Camera Functions (2nd Camera) | - | B&W lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 24 Megapixel | 5 Megapixel | Huawei P20 has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Huawei P20 has better front lens aperture than Huawei P20. |
| 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. |
| Camera Features (Front) | Light Fusion technology | - |
| BATTERY AND CHARGING | Huawei P20 | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 3400 mAh | 5000 mAh | Realme C21 has larger battery capacity than Huawei P20. |
|---|---|---|---|
| Fast Charging Technology | HUAWEI Safe SuperCharge technology | - | Huawei P20 has fast charging technology. |
| Recharge Time (Charging Time) | 90 min | - | |
| Standby Time | 406 hours | - | |
| Talk Time | 1140 minutes | - | |
| Run Time Details | Talk: up to 1140 min Standby: up to 406 hrs |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | Huawei P20 | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.1 Oreo | Android 10 | |
| User Interface | HUAWEI Emotion UI 8.1 | Realme UI | |
| Navigation | GPS, A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Huawei P20 | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-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 2, Band 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 7, Band 8, Band 9, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, Band 34, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 850, FDD 2600, FDD 900, FDD 1800, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| NFC | Yes | - | Huawei P20 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Huawei P20 | Realme C21 |
|---|
| Supported Digital Audio Standards | Apt-X, LDAC, apt-X HD | - |
|---|
| FEATURES | Huawei P20 | Realme C21 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, laser sensor, colour temperature sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Face Unlock, MIMO technology, Knuckle, Split Screen, Neural Network Processing Unit | Super power saving mode, HyperEngine technology, Reverse charging | |
| Android Enterprise Recommended | Yes | - |
| OTHERS | Huawei P20 | Realme C21 |
|---|
| Included Accessories | Protective cover, power adapter, USB-C to 3.5 jack adapter, USB-C cable, USB-C high resolution earphones | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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