Comparison between:
- Teclast T40 Air
- Teclast T40HD
- Teclast T40s
- Teclast T40
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Teclast T40 Air | Teclast T40HD | Teclast T40s | Teclast T40 | |
 |  |  |  Prices |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | - | - | - | 250 mm 25 cm 0.82 ft 9.843 in |
| Height | - | - | - | 158 mm 15.8 cm 0.518 ft 6.22 in |
| Thickness | 7.5 mm 0.75 cm 0.025 ft 0.295 in | 7.5 mm 0.75 cm 0.025 ft 0.295 in | 8 mm 0.8 cm 0.026 ft 0.315 in | 8.5 mm 0.85 cm 0.028 ft 0.335 in |
| Weight | 460 g 1.01 lbs 16.23 oz | 460 g 1.01 lbs 16.23 oz | 469 g 1.03 lbs 16.54 oz | 530 g 1.17 lbs 18.7 oz |
| Volume | - | - | - | 335.75 cm³ 20.39 in³ |
| Colors | Black | Space Gray | Gray | Black |
| Body materials | Aluminium alloy | Metal | Aluminium alloy | Aluminium alloy |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Nano-SIM Nano-SIM / microSD | Nano-SIM Nano-SIM / microSD | Nano-SIM Nano-SIM / microSD | Nano-SIM Nano-SIM / microSD |
| Number of SIM cards | 2 | 2 | 2 | 2 |
| Features | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | - |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | - | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| W-CDMA | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B19) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B19) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) | - | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B19) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) |
| LTE | LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | - | LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) |
Mobile network technologies and bandwidth
Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.
| Mobile network technologies | UMTS EDGE GPRS HSPA+ LTE EV-DO Rev. A | UMTS EDGE GPRS HSPA+ LTE EV-DO Rev. A | - | UMTS EDGE GPRS HSPA+ LTE EV-DO Rev. A |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Android 13 | Android 13 | Android 12 | Android 10 |
System on Chip (SoC)
A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.
| SoC | Unisoc Tiger T616 | Unisoc Tiger T606 | MediaTek Kompanio 500 (MT8183) | Unisoc Tiger T618 |
| Process technology | 12 nm | 12 nm | 12 nm | 12 nm |
| CPU | 2x 2.0 GHz ARM Cortex-A75, 6x 1.8 GHz ARM Cortex-A55 | 2x 1.6 GHz ARM Cortex-A75, 6x 1.6 GHz ARM Cortex-A55 | 4x 2.0 GHz ARM Cortex-A73, 4x 2.0 GHz ARM Cortex-A53 | 4x 2.0 GHz ARM Cortex-A75, 4x 2.0 GHz ARM Cortex-A55 |
| CPU bits | 64 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8.2-A | ARMv8.2-A | ARMv8-A | ARMv8.2-A |
| CPU cores | 8 | 8 | 8 | 8 |
| CPU frequency | 2000 MHz | 1600 MHz | 2000 MHz | 2000 MHz |
| GPU | ARM Mali-G52 MC1 | ARM Mali-G57 MP1 | ARM Mali-G72 MP3 | ARM Mali-G52 MC2 |
| GPU cores | - | 1 | 3 | - |
| GPU frequency | 750 MHz | 650 MHz | 800 MHz | 850 MHz |
| RAM capacity | 8 GB | 8 GB | 8 GB | 6 GB |
| RAM type | LPDDR4 | LPDDR4 | LPDDR4X | LPDDR4 |
| RAM channels | Double channel | Double channel | Double channel | Double channel |
| RAM frequency | 1600 MHz | 1600 MHz | 1866 MHz | 1600 MHz |
| - | Virtual RAM expansion - 8 GB | - | - |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 128 GB | 128 GB | 128 GB | 128 GB |
| UFS 2.1 | UFS 2.1 | UFS 2.1 | - |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC microSDXC | microSD microSDHC microSDXC | microSD microSDHC microSDXC | microSD microSDHC microSDXC |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | IPS | IPS | IPS | IPS |
| Diagonal size | 10.4 in 264.16 mm 26.42 cm | 10.36 in 263.14 mm 26.31 cm | 10.4 in 264.16 mm 26.42 cm | 10.4 in 264.16 mm 26.42 cm |
| Width | 8.92 in 226.52 mm 22.65 cm | 8.88 in 225.64 mm 22.56 cm | 8.92 in 226.52 mm 22.65 cm | 8.92 in 226.52 mm 22.65 cm |
| Height | 5.35 in 135.91 mm 13.59 cm | 5.33 in 135.39 mm 13.54 cm | 5.35 in 135.91 mm 13.59 cm | 5.35 in 135.91 mm 13.59 cm |
| Aspect ratio | 1.667:1 5:3 | 1.667:1 5:3 | 1.667:1 5:3 | 1.667:1 5:3 |
| Resolution | 2000 x 1200 pixels | 2000 x 1200 pixels | 2000 x 1200 pixels | 2000 x 1200 pixels |
| Pixel density | 224 ppi 88 ppcm | 225 ppi 88 ppcm | 224 ppi 88 ppcm | 224 ppi 88 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | - | - | - | 78.19 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch |
| In-cell TDDI OGS (One Glass Solution) Oleophobic (lipophobic) coating 400 cd/m² T-Color 2.0 | In-cell TDDI OGS (One Glass Solution) Oleophobic (lipophobic) coating 400 cd/m² T-Color 2.0 | 2.5D curved glass screen TDDI T-Color 2.0 | OGS (One Glass Solution) Oleophobic (lipophobic) coating 400 cd/m² |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Hall | Proximity Light Accelerometer Compass Gyroscope Hall | Accelerometer | Light Accelerometer |
Rear camera
The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor type | CMOS | CMOS | CMOS | CMOS |
| Flash type | - | Dual LED | - | - |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP | 4130 x 3120 pixels 12.89 MP | 3264 x 2448 pixels 7.99 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode |
| Secondary rear camera - AI lens | Secondary rear camera - AI lens | - | - |
Front camera
Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.
| Sensor type | - | - | CMOS | - |
| Image resolution | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP | 2560 x 1944 pixels 4.98 MP | 2560 x 1920 pixels 4.92 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| Features | - | - | Face unlock | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece Stereo speakers | Loudspeaker Earpiece Stereo speakers | Loudspeaker Stereo speakers | Loudspeaker Earpiece Stereo speakers |
| Four speakers | Four speakers | 4x Sweet III stereo speakers | Four speakers |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS Galileo | GPS A-GPS GLONASS Galileo | GPS A-GPS GLONASS BeiDou Galileo | GPS A-GPS GLONASS Galileo |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 5.0 | 5.0 | 5.0 | 5.0 |
| Features | A2DP | A2DP | A2DP | A2DP |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | USB Type-C | USB Type-C | USB Type-C | USB Type-C |
| Version | 2.0 | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go |
Headphone jack
The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.
| Headphone jack | Yes | Yes | No | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Tethering VoLTE |
Browser
A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
| Browser | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 | HTML HTML5 CSS 3 |
Audio file formats/codecs
Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.
| Audio file formats/codecs | AAC AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV |
Video file formats/codecs
Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.
| Video file formats/codecs | 3GPP AVI H.263 H.264 MP4 WebM WMV | 3GPP AVI H.263 H.264 MP4 WebM WMV | 3GPP AVI H.263 H.264 MP4 WebM WMV | 3GPP AVI H.263 H.264 MP4 WebM WMV |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 7200 mAh | 7200 mAh | 6000 mAh | 8000 mAh |
| Type | Li-Ion | Li-Ion | Li-Ion | Li-Ion |
| Charger output power | 9 V / 2 A | 9 V / 2 A | 9 V / 2 A | 5 V / 2 A |
| Features | Fast charging Non-removable | Fast charging Non-removable | Fast charging Non-removable | Fast charging Non-removable |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | - | - | Pogo pin for keyboards |
| Teclast T40 Air | Teclast T40HD | Teclast T40s | Teclast T40 |