| Physical features | TCL 20 5G |
| Model | |
| Other model names | TCL 20 5G T781K (256GB) |
| Country or region available | 
(Global, International) |
| Brand | TCL |
| Release date | November, 2020 |
| Depth | 9.1 millimeters (0.36 inches) |
| Size (width x height) | 76.8 x 166.2 millimeters (3.02 x 6.54 in) |
| Weight | 206 grams (7.21 ounces) |
| Qwerty physical keyboard | Not supported |
| Antenna | Internal antenna |
| Build, materials | Plastic body, glass front |
| Protection against water and others | Not supported |
| System (OS) | TCL 20 5G |
| Operating system | Android 10 |
| Firmware update | feature not registered |
| Hardware | TCL 20 5G |
| Chipset | 64bit - Qualcomm Snapdragon 690 SM6350 (8nm) |
| CPU processor | Octa-Core, 2 processors:
2Ghz Dual-Core Kryo 560 Gold
1.7Ghz Hexa-Core Kryo 560 Silver |
| GPU graphical controller | Qualcomm Adreno 619L 950Mhz |
| RAM memory | 6GB LPDDR4X |
| Internal storage | 256GB (230GB available)
UFS 2.1 |
| External storage | Until 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot) |
| Display | TCL 20 5G |
| Display type | TFT IPS LCD |
| Screen size | 6.67" inches |
| Screen-to-body ratio | ~84.2% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI |
| Colors | 16 million |
| Scratch-resistant glass | Not supported |
| Display features | 60Hz, 450 nits, HDR10 |
| Mobile networks | TCL 20 5G |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM)
nano-SIM (4FF) |
| Maximum download/upload | 2000/1024 Mbps |
| Network technology | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band detailsCollapse details |
| GSM Mhz band | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat18 (1, 3, 5, 7, 8, 20, 26, 28, 32)
TD-LTE (38, 40, 41)
VoLTE |
| Primary 5G network | SA/NSA (1, 3, 5, 28, 41, 78) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA |
| Secondary 2G network | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported |
| Secondary 4G network | Not supported |
| Secondary data network | GPRS, EDGE |
| Calling | TCL 20 5G |
| Messaging | SMS (T9), MMS, E-mail, Push mail |
| Speakerphone | Supported |
| Video calling | Supported |
| Call control | Voice dialing, Voice recorder, Voice commands |
| Camera | TCL 20 5G |
| Back camera (main camera) | (triple camera)
48 megapixels
8MP ultrawidef/2.216mm118º1/4"1.12µm
2MP macrof/2.483°1/5"1.75μm |
| Main camera resolution | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash |
| Focal aperture | f/1.8 (aperture) |
| Focal length | 26mm lens |
| Sensor size | 1/2" inches |
| Pixel size | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported |
| Image stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection |
| BSI sensor | Not supported |
| HDR | HDR photo on both cameras |
| 2ª camera | TCL 20 5G |
| Front camera (secondary) | 8 megapixels |
| Front camera resolution | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) |
| Front flash | Not supported |
| Focal aperture | f/2.0 (aperture) |
| Focal length | 27mm lens |
| Sensor size | 1/4" inches |
| Pixel size | 1.12µm pixel |
| Multimedia | TCL 20 5G |
| Radio | FM |
| TV | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC |
| Connectivity | TCL 20 5G |
| USB | USB 2.0 Type-C, USB OTG On-The-Go |
| TV output | USB Type-C (reversible) |
| Audio output | 3.5mm jack |
| Bluetooth | 5.1 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO |
| DLNA | Not supported |
| NFC | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| Infrared port | Not supported |
| Other functions | TCL 20 5G |
| Active noise cancellation | Supported |
| Vibrating alert | Supported |
| Ringtones | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 |
| Sensors | Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (side-mounted)
|
| Other features | - Colors: Mist Gray, Placid Blue
- TCL UI
- 2.5D screen
- NXTVISION
- Screen protector included
- TPU case included
- Hi-Res audio
- 24-bit/192kHz audio
- WiFi direct, hotspot |
| Power supply | TCL 20 5G |
| Battery | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 4500 mAh |
| Charger, watts | 18W Fast battery charging
Reverse charging USB between devices
Quick Charge 4+ |
| Talk time autonomy | feature not registered |
| Standby | feature not registered |
| Radiation rate | TCL 20 5G |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered |