In depth comparison and review of TCL 20SE 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 20SE | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | T671H | - | |
| Form Factor | Touch | Touch | |
| Height | 172.08 mm | 165.2 mm | TCL 20SE has greater height than Realme C21. |
| Width | 77.14 mm | 76.4 mm | TCL 20SE has greater width than Realme C21. |
| Depth | 9.1 mm | 8.9 mm | Realme C21 is narrower than TCL 20SE. |
| Weight | 206 g | 190 g | Realme C21 is lighter than TCL 20SE. |
| Body Colour | Nuit black | Aurora green | Cross black | Cross blue | |
| Body Material | Polycarbonate, polymethyl methacrylate (PMMA) | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.43 W/kg (body), 0.81 W/kg (head), 3.12 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 20SE | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | LCD | |
| Screen Size (Display Size) | 6.82" | 6.5" | TCL 20SE has larger screen size than Realme C21. |
| Screen Resolution (Display Resolution) | 1640 x 720 pixels | 1600 x 720 pixels | TCL 20SE has better screen resolution than Realme C21. |
| Display Format | HD+ | HD+ | |
| Pixel Density | 263 ppi | - | |
| Aspect Ratio | 20.5:9 | 20:9 | |
| Max Brightness | 450 cd/m² | 420 cd/m² | TCL 20SE has better display brightness than Realme C21. |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 1500:1 | - | |
| Display Enhancement Technology | Eye comfort mode, SDR-to-HDR colour enhancement | - | |
| Display Features | 2.5D Glass, Sunlight Display, Reading mode, Dark mode, CinemaVision display, V-notch display, TCL NXTVISION | Mini-drop display | |
| Display Protection (Screen Protector) | Fingerprint-resistant coating | - |
| PROCESSOR | TCL 20SE | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 460 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 1.8 GHz | 2.3 GHz | Realme C21 has higher clock speed than TCL 20SE. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 610 | PowerVR GE8320 |
| MEMORY | TCL 20SE | Realme C21 |
|---|
| RAM | LPDDR3 SDRAM - 4 GB | LPDDR4X SDRAM - 3 GB | TCL 20SE has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | TCL 20SE has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 256 GB | microSD |
| CAMERA | TCL 20SE | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 13 Megapixel | TCL 20SE has better camera resolution than Realme C21. |
| Sensor Size | 1/2.77" | - | |
| Lens Aperture | F/1.8 | F/2.2 | TCL 20SE has better lens aperture than TCL 20SE. |
| Lens Construction | 5-element | 5-element | |
| Field of View (FoV) | 77 degree(s) | - | |
| Pixel Size | 1.12 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | 4x | Both phones have the same digital zoom. |
| Special Effects | HDR, Bokeh effect | HDR | |
| Camera Modes | Panorama, Slow motion mode, Pro mode, night mode, super resolution mode, portrait mode, Filter mode, low-light video, Light Trace Mode, Stop-Motion Video Mode, Super Macro Mode, AI colour portrait video, AI Sky Enhancement | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Face Recognition (Face ID) | Face detection | - | TCL 20SE has face detection. |
| Light Source | Single tone dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Snapshot in video recording, AI Quad camera, Audio zoom, scene detection 2.0 | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 2 Megapixel | TCL 20SE has better second camera resolution than Realme C21. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/5" | - | |
| Lens Type (2nd Camera) | Super wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | TCL 20SE has better second camera lens aperture than TCL 20SE. |
| Lens Element Qty (2nd Camera) | 4-element | 3-element | |
| Field of View (2nd Camera) | 115 degree(s) | - | |
| Pixel Size (2nd Camera) | 1.12 μm | - | |
| Camera Functions (2nd Camera) | - | B&W lens | |
| Camera Features (2nd Camera) | 4-piece lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Sensor Size (3rd Camera) | 1/5" | - | |
| 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) | 3-element | 3-element | |
| Field of View (3rd Camera) | 83 degree(s) | - | |
| Pixel Size (3rd Camera) | 1.75 μm | - | |
| Camera Functions (3rd Camera) | Depth camera | Macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Sensor Size (4th Camera) | 1/5" | - | |
| Lens Aperture (4th Camera) | F/2.4 | - | |
| Lens Element Qty (4th Camera) | 3-element | - | |
| Field of View (4th Camera) | 83 degree(s) | - | |
| Pixel Size (4th Camera) | 1.75 μm | - | |
| Camera Functions (4th Camera) | Macro camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 5 Megapixel | TCL 20SE has better front camera resolution than Realme C21. |
| Sensor Size (Front) | 1/4" | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | TCL 20SE has better front lens aperture than TCL 20SE. |
| Lens Element Qty (Front) | 4-element | 3-element | |
| Field of View (Front) | 80.6 degree(s) | - | |
| Pixel Size (Front) | 1.12 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR, Face Beautification | HDR | |
| Camera Modes (Front) | Portrait mode | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - |
| BATTERY AND CHARGING | TCL 20SE | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 5000 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Recharge Time (Charging Time) | 4 hours | - | |
| Standby Time | 336 hours | - | |
| Run Time Details | Standby: up to 336 hrs Playback (video): up to 17 hrs Playback (audio): up to 60 hrs Active online usage (4G): up to 16 hrs |
- |
| CELLULAR | TCL 20SE | 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 11 | 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 20SE | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSPA+, LTE, VoLTE, VoWiFi | 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 28, 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 700 APT, 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 | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | TCL 20SE has NFC reader for mobile payments. |
| MEDIA | TCL 20SE | Realme C21 |
|---|
| Supported Digital Audio Standards | AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AWB, Vorbis | - | |
|---|---|---|---|
| Sound Enhancements | Hi-Res audio | - |
| FEATURES | TCL 20SE | 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 | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader | |
| Security Technology | Face Key | - | |
| Additional Phone Features | HD Voice, dual microphones with noise cancellation, Face Key, Google Lens, Google Assistant Button, floating window multitasking | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | TCL 20SE | Realme C21 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, TPU case | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | TUV Rheinland |
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