TCL 20 5G (T781K) vs Alcatel Idol Alpha
Side by side comparison between TCL 20 5G vs Alcatel Idol Alpha phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
IPS
IPS
1080x2400
48
MP
MP
8mp
6GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
4.7"
IPS
IPS
720x1280
13
MP
MP
1.3mp
1GB
RAM
RAM
Quad-core
2000
mAh
mAh
(Non removable)
What's the better phone? TCL 20 5G (T781K)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
24 Advantages 
4 Advantages | 22 Common items in both devices |
| TFT IPS LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| EIS: Digital stabilization |
| Capacitive |
| +15 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Model | TCL 20 5G (T781K) | Idol Alpha |
| Other model names | TCL 20 5G T781K (256GB) | Alcatel One Touch Idol Alpha 6032A, 6032X, Alcatel Idol Alfa |
| Country or region available |  (Global, International) | feature not registered |
| Brand | TCL | Alcatel |
| Release date | 11/30/2020 | 1/1/2014 |
| Depth | 9.1 millimeters (0.36 inches) | 7.5 millimeters (0.3 inches) |
| Size (width x height) | 76.8 x 166.2 millimeters (3.02 x 6.54 in) | 66.6 x 138 millimeters (2.62 x 5.43 in) |
| Weight | 206 grams (7.21 ounces) | 117 grams (4.1 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 6.67" inches | 4.7" inches |
| Screen-to-body ratio | ~84.2% (screen-to-body ratio) | ~66.3% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 395 PPI | 312 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Dragontrail Glass |
| Refresh rate | 60Hz | feature not registered |
| Display features | 450nits[typ] HDR10 | feature not registered |
🤖 Operating System | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| System version | Android 10 | Android 4.2.2 Jelly Bean |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Chipset | 64bit: Qualcomm Snapdragon 690 SM6350 (8nm) | 32bit: MediaTek MT6589 |
| CPU | Octa-core, 2 processors: 2x 2GHz Kryo 560 Gold (Dual-core) 6x 1.7GHz Kryo 560 Silver (Hexa-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 619L 950Mhz | PowerVR SGX544 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| RAM memory | 6GB LPDDR4X | 1GB LPDDR2 |
| Internal storage | 256GB (230GB available) UFS 2.1 | 16GB (13GB available) |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 42/11 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | 6032A version: UMTS 850/1900/2100 6032X version: 900/2100 |
| Primary 4G network | LTE Cat18 (1, 3, 5, 7, 8, 20, 26, 28, 32) TD-LTE (38, 40, 41) VoLTE | Not supported |
| Primary 5G network | SA/NSA (1, 3, 5, 28, 41, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Back camera (main camera) | (triple camera) 48 megapixels 8MP ultrawide f/2.216mm118°1/4"1.12µm 2MP macro f/2.483°1/5"1.75μm | 13 megapixels |
| Main camera resolution | 8000x6000 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 26mm (lens) | feature not registered |
| Sensor size | 1/2" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Front camera (secondary) | 8 megapixels | 1.3 megapixels |
| Front camera resolution | 3264x2448 pixels | 1280x1024 pixels |
| Video recording (secondary) | Full HD (1920x1080) | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/4" inches | feature not registered |
| Pixel size | 1.12µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.1 + A2DP/LE | 4.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 4500 mAh | 2000 mAh |
| Charger, watts | 18W Wired fast charging Reverse charging by cable Quick Charge 4+ | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 10 hours |
| Standby | feature not registered | 360 hours (15 days) |
➕ Other features | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Mist Gray, Placid Blue • TCL UI • 2.5D screen • NXTVISION • Screen protector included • TPU case included • Hi-Res audio • 24-bit/192kHz audio | • Colors: Black • Oleophobic coating screen • HD Voice • WiFi display • EAP SIM • Java framework |
☢️ Radiation rate | ||
| TCL 20 5G (T781K) | Alcatel Idol Alpha | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |