Comparison between:
- Meizu M8
- LeEco Le 2 X520
- Alldocube T8 Plus 4G
- Alldocube Free Young X7
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Meizu M8 | LeEco Le 2 X520 | Alldocube T8 Plus 4G | Alldocube Free Young X7 | |
 |  Prices |  Prices |  | |
| Model alias | M813H | Le2 X520 X526 | - | Free Young X7 T10 Plus |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 72.7 mm 7.27 cm 0.239 ft 2.862 in | 74.2 mm 7.42 cm 0.243 ft 2.921 in | 215 mm 21.5 cm 0.705 ft 8.465 in | 268 mm 26.8 cm 0.879 ft 10.551 in |
| Height | 147.5 mm 14.75 cm 0.484 ft 5.807 in | 151.1 mm 15.11 cm 0.496 ft 5.949 in | 122.9 mm 12.29 cm 0.403 ft 4.839 in | 168 mm 16.8 cm 0.551 ft 6.614 in |
| Thickness | 8.1 mm 0.81 cm 0.027 ft 0.319 in | 7.5 mm 0.75 cm 0.025 ft 0.295 in | 9.85 mm 0.985 cm 0.032 ft 0.388 in | 8.3 mm 0.83 cm 0.027 ft 0.327 in |
| Weight | 159 g 0.35 lbs 5.61 oz | 153 g 0.34 lbs 5.4 oz | 354 g 0.78 lbs 12.49 oz | 530 g 1.17 lbs 18.7 oz |
| Volume | 86.86 cm³ 5.27 in³ | 84.09 cm³ 5.11 in³ | 260.27 cm³ 15.81 in³ | 373.7 cm³ 22.69 in³ |
| Colors | Black Gold | Silver Gray Rose-gold | Silver Blue | Champagne |
| Body materials | Metal | Metal | Aluminium alloy Plastic | 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 | Mini-SIM Micro-SIM | Micro-SIM |
| Number of SIM cards | 2 | 2 | 2 | 1 |
| Features | - | - | 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 GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 900 MHz GSM 1800 MHz | GSM 900 MHz GSM 1800 MHz |
| CDMA | CDMA 800 MHz | - | - | - |
| W-CDMA | - | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1700 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz | W-CDMA 2100 MHz | W-CDMA 2100 MHz |
| TD-SCDMA | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz | - | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz |
| UMTS | UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz | - | - | - |
| LTE | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE-TDD 2300 MHz (B40) | LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 800 MHz (X526) LTE 850 MHz (X526) LTE 900 MHz (X526) LTE 1700/2100 MHz (X526) LTE 1900 MHz (X526) | LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 1800 MHz LTE 2100 MHz | LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 1800 MHz LTE 2100 MHz |
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 Cat 6 EV-DO Rev. A | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 4 |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | FlyMe 7.1 (Android 8.1 Oreo) | Android 6.0.1 Marshmallow | Android 5.1 Lollipop | Android 6.0 Marshmallow |
| User interface (UI) | - | EUI 5.6 | - | - |
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 | MediaTek Helio P22 (MT6762) | Qualcomm Snapdragon 652 (MSM8976) | MediaTek MT8783 | MediaTek MT8783T |
| Process technology | 12 nm | 28 nm | 28 nm | 28 nm |
| CPU | 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53 | 4x 1.8 GHz ARM Cortex-A72, 4x 1.4 GHz ARM Cortex-A53 | 8x 1.3 GHz ARM Cortex-A53 | 8x 1.5 GHz ARM Cortex-A53 |
| CPU bits | 64 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8-A | ARMv8-A |
| Level 1 cache memory (L1) | - | - | 32 KB + 32 KB | 32 KB + 32 KB |
| Level 2 cache memory (L2) | - | - | 512 KB 0.5 MB | 512 KB 0.5 MB |
| CPU cores | 8 | 8 | 8 | 8 |
| CPU frequency | 2000 MHz | 1800 MHz | 1300 MHz | 1500 MHz |
| GPU | IMG PowerVR GE8320 | Qualcomm Adreno 510 | ARM Mali-T720 MP3 | ARM Mali-T720 MP3 |
| GPU cores | - | - | 3 | 3 |
| GPU frequency | 650 MHz | 600 MHz | - | - |
| RAM capacity | 4 GB | 3 GB | 2 GB | 3 GB |
| RAM type | LPDDR3 | LPDDR3 | LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Double channel | Single channel | Single channel |
| RAM frequency | 933 MHz | 933 MHz | 933 MHz | 933 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 64 GB | 32 GB | 16 GB | 32 GB |
| - | eMMC 5.1 | - | - |
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 |
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 | 5.7 in 144.78 mm 14.48 cm | 5.5 in 139.7 mm 13.97 cm | 8 in 203.2 mm 20.32 cm | 10.1 in 256.54 mm 25.65 cm |
| Width | 2.55 in 64.75 mm 6.47 cm | 2.7 in 68.49 mm 6.85 cm | 6.78 in 172.31 mm 17.23 cm | 8.56 in 217.55 mm 21.75 cm |
| Height | 5.1 in 129.5 mm 12.95 cm | 4.79 in 121.76 mm 12.18 cm | 4.24 in 107.7 mm 10.77 cm | 5.35 in 135.97 mm 13.6 cm |
| Aspect ratio | 2:1 2:1 (18:9) | 1.778:1 16:9 | 1.6:1 16:10 | 1.6:1 16:10 |
| Resolution | 720 x 1440 pixels | 1080 x 1920 pixels | 1920 x 1200 pixels | 1920 x 1200 pixels |
| Pixel density | 282 ppi 110 ppcm | 401 ppi 157 ppcm | 283 ppi 111 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 | 78.44 % | 74.62 % | 70.46 % | 65.91 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch |
| 2.5D curved glass screen 1000:1 contrast ratio 450 cd/m² | 1200:1 contrast ratio 500 cd/m² 80% NTSC | Viewing angle - 178° | OGS (One Glass Solution) |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Fingerprint | Proximity Light Accelerometer Compass Gyroscope Fingerprint Hall | Light Accelerometer | Proximity Light Accelerometer Fingerprint |
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 model | - | OmniVision OV16880 | - | - |
| Sensor type | CMOS | PureCel | CMOS | CMOS |
| Sensor size | - | 4.74 x 3.56 mm 0.23 in | - | - |
| Pixel size | - | 1.029 µm 0.001029 mm | - | - |
| Crop factor | - | 7.29 | - | - |
| ISO | 100 - 1600 | 100 - 1600 | - | - |
| Aperture | f/2.2 | f/2 | - | - |
| Focal length and 35 mm equivalent | 3.83 mm | 3.57 mm 26.04 mm *(35 mm / full frame) | - | - |
| Number of lenses | 5 | 5 | - | - |
| Flash type | Dual LED | Dual LED | LED | LED |
| Image resolution | 4096 x 3072 pixels 12.58 MP | 4608 x 3456 pixels 15.93 MP | 2560 x 1920 pixels 4.92 MP | 4160 x 3120 pixels 12.98 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 3840 x 2160 pixels 8.29 MP | 1280 x 720 pixels 0.92 MP | - |
| Video FPS | 30 fps | 30 fps | 30 fps | - |
| Features | Autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) | Autofocus Continuous shooting Digital zoom Digital image stabilization Optical image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode Phase detection autofocus (PDAF) | Digital zoom Geotagging Panorama Face detection 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 - 5 MP Aperture size - f/2.2 (#2) 3-element lens (#2) | Sensor type - PureCel Plus-S 720p @ 120 fps | - | - |
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 model | - | OmniVision OV8865 | - | - |
| Sensor type | CMOS | CMOS BSI 2 | - | - |
| Sensor size | - | 4.61 x 3.47 mm 0.23 in | - | - |
| Pixel size | - | 1.414 µm 0.001414 mm | - | - |
| Crop factor | - | 7.49 | - | - |
| Aperture | f/1.9 | f/2.2 | - | - |
| Focal length and 35 mm equivalent | 1.98 mm | - | - | - |
| Field of view | - | 76.5 ° | - | - |
| Number of lenses | 4 | - | - | - |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 3264 x 2448 pixels 7.99 MP | 1600 x 1200 pixels 1.92 MP | 2592 x 1944 pixels 5.04 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1280 x 720 pixels 0.92 MP | - | - |
| Video FPS | 30 fps | 30 fps | - | - |
| Features | Face unlock | - | - | - |
| Exposure compensation | - | - | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker | Loudspeaker | Loudspeaker |
| - | CDLA - Continual Digital Lossless Audio Dolby Atmos Headphone adapter | - | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | No | No | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS BeiDou | GPS A-GPS GLONASS BeiDou | GPS A-GPS | GPS A-GPS |
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 Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11ac Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11b 802.11g 802.11n 802.11n 5GHz Dual band | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz Dual band Wi-Fi Hotspot |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 5.0 | 4.2 | 4.0 | 4.0 |
| Features | A2DP LE | A2DP EDR LE | A2DP | A2DP |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | USB Type-C | Micro USB | Micro USB |
| Version | 2.0 | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage | 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 | No | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Infrared Tethering | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering |
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 AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AC3 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 Flash Video MKV QuickTime MP4 WebM WMV Xvid | 3GPP AVI DivX Flash Video H.263 H.264 H.265 MKV MP4 VP8 VP9 WebM Xvid | 3GPP AVI MP4 VC-1 VP8 Xvid | 3GPP AVI H.263 H.264 MP4 Xvid |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 3100 mAh | 3000 mAh | 4000 mAh | 6500 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer | Li-Polymer |
| Charger output power | 5 V / 2 A | 5 V / 2.7 A 9 V / 2.7 A 12 V / 2 A | 5 V / 2 A | 5 V / 2 A |
| Features | Non-removable | Fast charging Non-removable | Non-removable | Non-removable |
Specific Absorption Rate (SAR)
The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.
| Head SAR (USA) | - | 0.971 W/kg | - | - |
| Body SAR (USA) | - | 1.42 W/kg | - | - |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | USB Type-C to 3.5 mm adapter | - | Stylus pen (1024 pressure levels) |
| Meizu M8 | LeEco Le 2 X520 | Alldocube T8 Plus 4G | Alldocube Free Young X7 |