Comparison between:
- ZTE Blade S6 TD-LTE
- Oukitel U20 Plus
- Bluboo Dual
- VKworld Mix Plus
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| ZTE Blade S6 TD-LTE | Oukitel U20 Plus | Bluboo Dual | VKworld Mix Plus | |
 |  |  |  | |
| Model alias | - | U20Plus | - | Mix+ |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 70.7 mm 7.07 cm 0.232 ft 2.783 in | 77.5 mm 7.75 cm 0.254 ft 3.051 in | 76.3 mm 7.63 cm 0.25 ft 3.004 in | 74 mm 7.4 cm 0.243 ft 2.913 in |
| Height | 144 mm 14.4 cm 0.472 ft 5.669 in | 154 mm 15.4 cm 0.505 ft 6.063 in | 151 mm 15.1 cm 0.495 ft 5.945 in | 143 mm 14.3 cm 0.469 ft 5.63 in |
| Thickness | 7.7 mm 0.77 cm 0.025 ft 0.303 in | 8.4 mm 0.84 cm 0.028 ft 0.331 in | 8 mm 0.8 cm 0.026 ft 0.315 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in |
| Weight | 132 g 0.29 lbs 4.66 oz | 195 g 0.43 lbs 6.88 oz | 153 g 0.34 lbs 5.4 oz | 162 g 0.36 lbs 5.71 oz |
| Volume | 78.39 cm³ 4.76 in³ | 100.25 cm³ 6.09 in³ | 92.17 cm³ 5.6 in³ | 83.6 cm³ 5.08 in³ |
| Colors | Silver | Rose-gold Champagne Gray Black | Rose-gold Gold Gray | Gray Blue |
| Body materials | - | Polycarbonate | Aluminium alloy | Metal Glass |
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 | Micro-SIM Nano-SIM / microSD | Micro-SIM Nano-SIM / microSD | Nano-SIM Micro-SIM |
| 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) | - | - | - |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | GSМ 850 МНz GSМ 900 МНz GSМ 1900 МНz | GSМ 850 МНz GSМ 900 МНz GSМ 1900 МНz | GSМ 850 МНz GSМ 900 МНz GSМ 1900 МНz | GSМ 850 МНz GSМ 900 МНz GSМ 1900 МНz |
| CDMA | CDMA 800 MHz | - | - | - |
| W-CDMA | - | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 2100 MHz |
| UMTS | UМТS 900 МНz UМТS 1900 МНz UМТS 2100 МНz | - | - | - |
| LTE | LТЕ 1800 МНz LТЕ 2100 МНz LТЕ 2600 МНz LТЕ-ТDD 1900 МНz (В39) LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2600 МНz (В38) | LТЕ 800 МНz LТЕ 900 МНz LТЕ 1800 МНz LТЕ 2600 МНz | LТЕ 800 МНz LТЕ 1800 МНz LТЕ 2600 МНz | LТЕ 800 МНz LТЕ 900 МНz LТЕ 1800 МНz LТЕ 2600 МНz |
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 | UМТS GРRS LТЕ Саt 4 | UМТS GРRS LТЕ Саt 4 | UМТS GРRS LТЕ Саt 4 | UМТS GРRS Сlаss 12 |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Аndrоid 5.0.2 Lоlliрор | Аndrоid 6.0 Маrshmаllоw | Аndrоid 6.0 Маrshmаllоw | Аndrоid 7.0 Νоugаt |
| User interface (UI) | MiFavor 3.0 | - | - | - |
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 | Quаlсоmm Snарdrаgоn 410 (МSМ8916) | МеdiаТеk МТ6753 | МеdiаТеk МТ6735Р | МеdiаТеk МТ6750 |
| Process technology | 28 nm | 28 nm | 28 nm | 28 nm |
| CPU | 4х 1.2 GНz АRМ Соrtех-А53 | 4х 1.5 GНz АRМ Соrtех-А53 | 4х 1.5 GНz АRМ Соrtех-А53 | 4х 1.3 GНz АRМ Соrtех-А53 |
| CPU bits | 32 bit | 64 bit | 64 bit | 32 bit |
| Instruction set | ARMv7 | ARMv8-A | ARMv8-A | ARMv7 |
| Level 0 cache memory (L0) | 4 KB + 4 KB | - | - | - |
| Level 1 cache memory (L1) | 32 KB + 32 KB | 16 KB + 16 KB | 16 KB + 16 KB | 16 KB + 16 KB |
| Level 2 cache memory (L2) | 2048 KB 2 MB | 512 KB 0.5 MB | 512 KB 0.5 MB | 512 KB 0.5 MB |
| CPU cores | 4 | 4 | 4 | 4 |
| CPU frequency | 1200 MHz | 1500 MHz | 1500 MHz | 1300 MHz |
| GPU | Qualcomm Adreno 306 | ARM Mali-T720 MP2 | ARM Mali-T720 MP2 | ARM Mali-T720 MP2 |
| GPU cores | - | 2 | 2 | 2 |
| GPU frequency | 400 MHz | 600 MHz | 600 MHz | 550 MHz |
| RAM capacity | 2 GB | 2 GB | 2 GB | 3 GB |
| RAM type | LPDDR2/LPDDR3 | LPDDR3 | LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Single channel | Single channel | Single channel |
| RAM frequency | 666 MHz | 633 MHz | 633 MHz | 540 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB | 16 GB | 16 GB | 32 GB |
| UFS 2.1 | - | UFS 2.0 | UFS 2.0 |
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 | 5 in 127 mm 12.7 cm | 5.5 in 139.7 mm 13.97 cm | 5.5 in 139.7 mm 13.97 cm | 5.5 in 139.7 mm 13.97 cm |
| Width | 2.1 in 53.22 mm 5.32 cm | 2.46 in 62.48 mm 6.25 cm | 2.35 in 59.8 mm 5.98 cm | 2.46 in 62.48 mm 6.25 cm |
| Height | 4.54 in 115.31 mm 11.53 cm | 4.92 in 124.95 mm 12.5 cm | 4.97 in 126.25 mm 12.63 cm | 4.92 in 124.95 mm 12.5 cm |
| Aspect ratio | 2.167:1 | 2:1 2:1 (18:9) | 2.111:1 | 2:1 2:1 (18:9) |
| Resolution | 1080 x 2340 pixels | 1080 x 2160 pixels | 720 x 1520 pixels | 720 x 1440 pixels |
| Pixel density | 515 ppi 202 ppcm | 439 ppi 172 ppcm | 306 ppi 120 ppcm | 293 ppi 115 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 60.47 % | 65.62 % | 65.75 % | 74.01 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant |
| 2.5D curved glass screen | 2.5D curved glass screen GFF full lamination 2000:1 contrast ratio 500 cd/m² | 2.5D curved glass screen GFF full lamination 1400:1 contrast ratio 400 cd/m² 96% NTSC | Corning Gorilla Glass 4 2.5D curved glass screen HDR10 |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope | Proximity Light Accelerometer Compass Gyroscope | Proximity Light Accelerometer Gyroscope | Proximity Light Accelerometer |
Main rear camera
The main camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor model | Sony IMX214 Exmor RS | Sony IMX135 Exmor RS | Sony IMX135 Exmor RS | - |
| Sensor type | CMOS | CMOS | CMOS | CMOS |
| Sensor size | 4.69 x 3.52 mm 0.23 in | 4.69 x 3.52 mm 0.23 in | 4.69 x 3.52 mm 0.23 in | - |
| Pixel size | 1.127 µm 0.001127 mm | 1.127 µm 0.001127 mm | 1.127 µm 0.001127 mm | - |
| Crop factor | 7.38 | 7.38 | 7.38 | - |
| ISO | 100 - 800 | 100 - 1600 | - | - |
| Aperture | f/2 | f/2 | f/2 | - |
| Focal length and 35 mm equivalent | 3.79 mm 27.99 mm *(35 mm / full frame) | 4 mm 29.51 mm *(35 mm / full frame) | 3.5 mm 25.82 mm *(35 mm / full frame) | - |
| Flash type | LED | LED | Dual LED | Dual LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 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 | 1280 x 720 pixels 0.92 MP |
| Video FPS | 30 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 | 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 |
| - | Interpolated resolution - 16 MP Secondary rear camera - 0.3 MP Sensor model - GalaxyCore GC030A (#2) Sensor size - 1.44 x 1.08 mm (#2) | Secondary rear camera - 2 MP (interpolated from 0.3 MP) Sensor model - GalaxyCore GC030A (#2) Sensor size - 1.44 x 1.08 mm (#2) | Interpolated resolution - 13 MP |
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 | - | GalaxyCore GC5005 | GalaxyCore GC5005 | - |
| Sensor type | - | CMOS | CMOS | - |
| Sensor size | - | 2.92 x 2.2 mm 0.14 in | 2.92 x 2.2 mm 0.14 in | - |
| Pixel size | - | 1.127 µm 0.001127 mm | 1.127 µm 0.001127 mm | - |
| Crop factor | - | 11.84 | 11.84 | - |
| Aperture | f/2.2 | f/2.8 | - | - |
| Focal length and 35 mm equivalent | - | 4 mm 47.38 mm *(35 mm / full frame) | 3.5 mm 41.45 mm *(35 mm / full frame) | - |
| Image resolution | 2560 x 1920 pixels 4.92 MP | 2592 x 1944 pixels 5.04 MP | 2592 x 1944 pixels 5.04 MP | 2592 x 1944 pixels 5.04 MP |
| Video resolution | - | 640 x 480 pixels 0.31 MP | - | 640 x 480 pixels 0.31 MP |
| Video FPS | - | 30 fps | - | 30 fps |
| - | - | Interpolated resolution - 8 MP | Interpolated resolution - 8 MP |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker | Loudspeaker Earpiece |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes | Yes |
| - | - | RDS | - |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GРS А-GРS GLОΝАSS | GРS А-GРS | GРS А-GРS | GРS А-GРS |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11b 802.11g 802.11а 802.11ас 5GНz | 802.11b 802.11g 802.11а | 802.11а 802.11b 802.11g 802.11а 802.11аd | 802.11b 802.11g 802.11а 802.11аd |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.1 | 4.1 | 4.1 | 4.1 |
| 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 | Micro USB | Micro USB | Micro USB |
| Version | 2.0 | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage On-The-Go | Charging Mass storage | Charging Mass storage On-The-Go | Charging Mass storage |
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 | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering HotKnot | 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 AMR eAAC+ MIDI MP3 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 MKV MP4 WMV | 3GPP AVI MP4 Xvid | 3GPP AVI Flash Video MKV QuickTime MP4 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 | 2400 mAh | 3300 mAh | 3000 mAh | 2850 mAh |
| Type | Li-Polymer | Li-Ion | Li-Ion | Li-Polymer |
| Charger output power | - | 5 V / 1 A | 5 V / 1.5 A | 5 V / 1 A |
| Features | Non-removable | Non-removable | Non-removable | Non-removable |
| ZTE Blade S6 TD-LTE | Oukitel U20 Plus | Bluboo Dual | VKworld Mix Plus |
