In depth comparison and review of Alcatel 1S (2021) and TCL 20 5G. 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 | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | T781K | |
| Form Factor | Touch | Touch | |
| Height | 165.64 mm | 166.2 mm | TCL 20 5G has greater height than Alcatel 1S (2021). |
| Width | 75.59 mm | 76.8 mm | TCL 20 5G has greater width than Alcatel 1S (2021). |
| Depth | 8.8 mm | 9.1 mm | Alcatel 1S (2021) is narrower than Alcatel 1S (2021). |
| Weight | 190 g | 206 g | Alcatel 1S (2021) is lighter than Alcatel 1S (2021). |
| Body Colour | - | Mist grey | Placid blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 2.99 W/kg (limb), 1.42 W/kg (body), 0.42 W/kg (head) | 1.45 W/kg (body), 1.4 W/kg (head), 3.5 W/kg (limb) | |
| Integrated Components | - | FM radio, LED flashlight | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C 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 | Nano SIM + nano SIM/microSD |
| DISPLAY | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | LCD | |
| Screen Size (Display Size) | 6.52" | 6.67" | TCL 20 5G has larger screen size than Alcatel 1S (2021). |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2400 x 1080 pixels | TCL 20 5G has better screen resolution than Alcatel 1S (2021). |
| Display Format | HD+ | Full HD+ | |
| Pixel Density | - | 395 ppi | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | - | 450 cd/m² | |
| 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, Reading mode, Dark mode, Vast Display, One-handed Mode | 2.5D Glass, Dotch Display, TCL NXTVISION, Delta-E < 1 | |
| Display Protection (Screen Protector) | - | Fingerprint-resistant coating |
| PROCESSOR | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Processor Type (CPU) | MediaTek | Qualcomm Snapdragon 690 5G | |
|---|---|---|---|
| Processor Number | MTK6762D | - | |
| Clock Speed | 1.8 GHz | 2 GHz | TCL 20 5G has higher clock speed than Alcatel 1S (2021). |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | IMG GE8320 | Qualcomm ADRENO 619L |
| MEMORY | Alcatel 1S (2021) | TCL 20 5G |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 6 GB | TCL 20 5G has more RAM than Alcatel 1S (2021). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 256 GB | TCL 20 5G has more internal memory than Alcatel 1S (2021). |
| User Memory | 17 GB | - | |
| Memory Interface | - | UFS 2.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSD, microSDXC - up to 512 GB | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | Alcatel 1S (2021) | TCL 20 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 48 Megapixel | TCL 20 5G has better camera resolution than Alcatel 1S (2021). |
| Sensor Size | 1/3.06" | 1/2" | Alcatel 1S (2021) has better camera sensor size than TCL 20 5G. |
| Lens Aperture | F/2.0 | F/1.8 | TCL 20 5G has better lens aperture than Alcatel 1S (2021). |
| Lens Construction | 5-element | 6-element | |
| Field of View (FoV) | 77.1 degree(s) | 79 degree(s) | TCL 20 5G has larger lens field of view than Alcatel 1S (2021). |
| Pixel Size | 1.12 μm | 0.8 μm | Alcatel 1S (2021) has larger camera pixel size than TCL 20 5G. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 10x | |
| Special Effects | HDR | HDR, Bokeh effect | |
| Camera Modes | Panorama, Pro mode, Best Shot, Bokeh Mode, Light Trace | 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 | |
| Face Recognition (Face ID) | Face tracking | - | Alcatel 1S (2021) has face detection. |
| Light Source | Single tone LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), EIS video stabilisation, AI scene detection, AI Composition, AI Filter, Smart Album | Phase Detect Auto-Focus (PDAF), snapshot in video recording, EIS video stabilisation, AI scene detection, AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 8 Megapixel | TCL 20 5G has better second camera resolution than Alcatel 1S (2021). |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/5" | 1/4" | Alcatel 1S (2021) has better second camera sensor size than TCL 20 5G. |
| Lens Type (2nd Camera) | - | Super wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | TCL 20 5G has better second camera lens aperture than Alcatel 1S (2021). |
| Lens Element Qty (2nd Camera) | 3-element | 5-element | |
| Field of View (2nd Camera) | 87.3 degree(s) | 118 degree(s) | TCL 20 5G has larger second camera lens field of view than Alcatel 1S (2021). |
| Pixel Size (2nd Camera) | 1.12 μm | 1.12 μm | Both phones have the same second camera pixel size. |
| Camera Functions (2nd Camera) | Depth camera | - | |
| Camera Features (2nd Camera) | 3-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 | 5-element | |
| Field of View (3rd Camera) | 84 degree(s) | 83 degree(s) | Alcatel 1S (2021) has larger third camera lens field of view than TCL 20 5G. |
| Pixel Size (3rd Camera) | 1.65 μm | 1.75 μm | TCL 20 5G has larger third camera pixel size than Alcatel 1S (2021). |
| Camera Functions (3rd Camera) | Macro camera | Macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | TCL 20 5G has better front camera resolution than Alcatel 1S (2021). |
| Sensor Size (Front) | 1/5" | 1/4" | Alcatel 1S (2021) has better front camera sensor size than TCL 20 5G. |
| Lens Aperture (Front) | F/2.2 | F/2.0 | TCL 20 5G has better front lens aperture than Alcatel 1S (2021). |
| Lens Element Qty (Front) | - | 4-element | |
| Field of View (Front) | 76 degree(s) | 78 degree(s) | TCL 20 5G has larger front lens field of view than Alcatel 1S (2021). |
| Pixel Size (Front) | 1.12 μm | 1.12 μm | Both phones have the same front camera pixel size. |
| Focus Adjustment | Focus free | Focus free | |
| Special Effects (Front) | Face Beautification | HDR, Face Beautification | |
| Camera Modes (Front) | Night mode, Bokeh Mode | Portrait mode, Filter mode | |
| Face Recognition (Face ID) | Face tracking | - | Alcatel 1S (2021) has face detection. |
| Light Source (Front) | Display flash | Display flash | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps |
| BATTERY AND CHARGING | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 4500 mAh | TCL 20 5G has larger battery capacity than Alcatel 1S (2021). |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0+ | TCL 20 5G has fast charging technology. |
| Recharge Time (Charging Time) | 150 min | 2.5 hour(s) | Both phones have the same charging time. |
| Standby Time | 512 hours | - | |
| Talk Time | 1920 minutes | - | |
| Run Time Details | Standby (2G): up to 512 hrs Standby (3G): up to 488 hrs Standby (4G): up to 392 hrs Talk (4G): up to 1200 min Talk (2G): up to 1920 min |
- |
| CELLULAR | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | TCL 20 5G has more advanced generation mobile network. |
| Operating System | Android 11 | Android 10 | |
| User Interface | - | TCL UI | |
| Intelligent Assistant | Google Assistant | Google Assistant | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Data Transmission | GPRS, EDGE, HSPA+, LTE | GPRS, EDGE, HSPA+, VoLTE, VoWiFi, 5G NR FR1 | |
|---|---|---|---|
| 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 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 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 26, Band 28, Band 32, 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 850+, FDD 700 APT, FDD 1500 L, 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 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.1 | |
| NFC | - | Yes | TCL 20 5G has NFC reader for mobile payments. |
| MEDIA | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Supported Digital Audio Standards | AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AWB, Vorbis | AAC, MP3, FLAC, AAC +, eAAC+, MIDI, LDAC, AMR-WB, AMR-NB, SBC, Vorbis, WAVE | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.263, HEVC, VP8, VP9, H.265, H.264 AVC | - | |
| Sound Enhancements | - | Hi-Res audio, Qualcomm aptX audio, Qualcomm TrueWireless Stereo Plus, Qualcomm aptX HD audio, Qualcomm aptX Adaptive |
| FEATURES | Alcatel 1S (2021) | TCL 20 5G |
|---|
| 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, proximity sensor, digital compass, light sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader (side) | |
| Security Technology | Face Key | - | |
| Additional Phone Features | Multitasking, HD Voice, dual microphones with noise cancellation, Google Lens, Google Assistant Button | HD Voice, dual microphones with noise cancellation, Face Key, Google Lens, Google Assistant Button, guaranteed upgrade to Android 11 |
| OTHERS | Alcatel 1S (2021) | TCL 20 5G |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool, LCD sticker | Power adapter, SIM card removal tool, USB-C cable, LCD sticker | |
|---|---|---|---|
| Compliant Standards | - | HAC (Hearing Aid Compatible) |
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