In depth comparison and review of TCL 20 5G 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 | TCL 20 5G | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | T781K | - | |
| Form Factor | Touch | Touch | |
| Height | 166.2 mm | 165.2 mm | TCL 20 5G has greater height than Realme C21. |
| Width | 76.8 mm | 76.4 mm | TCL 20 5G has greater width than Realme C21. |
| Depth | 9.1 mm | 8.9 mm | Realme C21 is narrower than TCL 20 5G. |
| Weight | 206 g | 190 g | Realme C21 is lighter than TCL 20 5G. |
| Body Colour | Mist grey | Placid blue | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.45 W/kg (body), 1.4 W/kg (head), 3.5 W/kg (limb) | - | |
| Integrated Components | FM radio, LED flashlight | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| 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 | TCL 20 5G | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | LCD | LCD | |
| Screen Size (Display Size) | 6.67" | 6.5" | TCL 20 5G has larger screen size than Realme C21. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 1600 x 720 pixels | TCL 20 5G has better screen resolution than Realme C21. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 395 ppi | - | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | 450 cd/m² | 420 cd/m² | TCL 20 5G has better display brightness than Realme C21. |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 1500:1 | - | |
| HDR | Yes | - | TCL 20 5G has HDR. |
| HDR Technology | HDR10 | - | |
| Display Features | 2.5D Glass, Dotch Display, TCL NXTVISION, Delta-E < 1 | Mini-drop display | |
| Display Protection (Screen Protector) | Fingerprint-resistant coating | - |
| PROCESSOR | TCL 20 5G | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 690 5G | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.3 GHz | Realme C21 has higher clock speed than TCL 20 5G. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 619L | PowerVR GE8320 |
| MEMORY | TCL 20 5G | Realme C21 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 3 GB | TCL 20 5G has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 256 GB | 32 GB | TCL 20 5G has more internal memory than Realme C21. |
| Memory Interface | UFS 2.1 | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 256 GB | microSD |
| CAMERA | TCL 20 5G | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 13 Megapixel | TCL 20 5G has better camera resolution than Realme C21. |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.8 | F/2.2 | TCL 20 5G has better lens aperture than TCL 20 5G. |
| Lens Construction | 6-element | 5-element | |
| Field of View (FoV) | 79 degree(s) | - | |
| Pixel Size | 0.8 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 10x | 4x | TCL 20 5G has better digital zoom than Realme C21. |
| Special Effects | HDR, Bokeh effect | HDR | |
| Camera Modes | Panorama, Slow motion mode, Pro mode, portrait mode, Super Night mode, Filter mode, Light Trace Mode, Stop-Motion Video Mode, Super Macro Mode, Super Steady Mode | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), snapshot in video recording, EIS video stabilisation, AI scene detection, AI Triple camera | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | TCL 20 5G has better second camera resolution than Realme C21. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/4" | - | |
| Lens Type (2nd Camera) | Super wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | TCL 20 5G has better second camera lens aperture than TCL 20 5G. |
| Lens Element Qty (2nd Camera) | 5-element | 3-element | |
| Field of View (2nd Camera) | 118 degree(s) | - | |
| Pixel Size (2nd Camera) | 1.12 μm | - | |
| Camera Functions (2nd Camera) | - | B&W lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | 5-element | 3-element | |
| Field of View (3rd Camera) | 83 degree(s) | - | |
| Pixel Size (3rd Camera) | 1.75 μm | - | |
| Camera Functions (3rd Camera) | Macro camera | Macro camera | |
| Camera Features (3rd Camera) | 4cm macro photography | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 5 Megapixel | TCL 20 5G has better front camera resolution than Realme C21. |
| Sensor Size (Front) | 1/4" | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | TCL 20 5G has better front lens aperture than TCL 20 5G. |
| Lens Element Qty (Front) | 4-element | 3-element | |
| Field of View (Front) | 78 degree(s) | - | |
| Pixel Size (Front) | 1.12 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR, Face Beautification | HDR | |
| Camera Modes (Front) | Portrait mode, Filter mode | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
| Face Recognition (Face ID) | - | Face recognition | Realme C21 has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - |
| BATTERY AND CHARGING | TCL 20 5G | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 5000 mAh | Realme C21 has larger battery capacity than TCL 20 5G. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0+ | - | TCL 20 5G has fast charging technology. |
| Recharge Time (Charging Time) | 2.5 hour(s) | - |
| CELLULAR | TCL 20 5G | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 4G | TCL 20 5G has more advanced generation mobile network. |
| Operating System | Android 10 | Android 10 | |
| User Interface | TCL UI | Realme UI | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | TCL 20 5G | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSPA+, VoLTE, VoWiFi, 5G NR FR1 | 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 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 26, Band 28, Band 32, Band 38, 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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, 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 | |
| 5G NR Band | N1, n3, n5, n28, n41, n78 | - | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 700APT, TDD TD 2500, TDD TD 3500 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.1 | Bluetooth 5.0 | |
| NFC | Yes | - | TCL 20 5G has NFC reader for mobile payments. |
| MEDIA | TCL 20 5G | Realme C21 |
|---|
| Supported Digital Audio Standards | AAC, MP3, FLAC, AAC +, eAAC+, MIDI, LDAC, AMR-WB, AMR-NB, SBC, Vorbis, WAVE | - | |
|---|---|---|---|
| Sound Enhancements | Hi-Res audio, Qualcomm aptX audio, Qualcomm TrueWireless Stereo Plus, Qualcomm aptX HD audio, Qualcomm aptX Adaptive | - |
| FEATURES | TCL 20 5G | 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 | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Fingerprint reader | |
| Additional Phone Features | HD Voice, dual microphones with noise cancellation, Face Key, Google Lens, Google Assistant Button, guaranteed upgrade to Android 11 | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | TCL 20 5G | Realme C21 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, LCD sticker | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | TUV Rheinland |
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