Comparison between:
- Bluboo Dual
- Leagoo M8 Pro
- Oukitel U22
- Uhans S3
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Bluboo Dual | Leagoo M8 Pro | Oukitel U22 | Uhans S3 | |
 Prices |  Prices |  Prices |  |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 76.3 mm 7.63 cm 0.25 ft 3.004 in | 79.8 mm 7.98 cm 0.262 ft 3.142 in | 76 mm 7.6 cm 0.249 ft 2.992 in | 83.1 mm 8.31 cm 0.273 ft 3.272 in |
| Height | 151 mm 15.1 cm 0.495 ft 5.945 in | 154.5 mm 15.45 cm 0.507 ft 6.083 in | 154.2 mm 15.42 cm 0.506 ft 6.071 in | 160.5 mm 16.05 cm 0.527 ft 6.319 in |
| Thickness | 8 mm 0.8 cm 0.026 ft 0.315 in | 8.8 mm 0.88 cm 0.029 ft 0.346 in | 9.6 mm 0.96 cm 0.031 ft 0.378 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in |
| Weight | 153 g 0.34 lbs 5.4 oz | 224 g 0.49 lbs 7.9 oz | 187 g 0.41 lbs 6.61 oz | - |
| Volume | 92.17 cm³ 5.6 in³ | 108.5 cm³ 6.59 in³ | 112.5 cm³ 6.83 in³ | 105.37 cm³ 6.4 in³ |
| Colors | Rose-gold Gold Gray | Gray Champagne | White Black | Silver Rose-gold Gold |
| Body materials | Aluminium alloy | Plastic Metal | Metal Polycarbonate | Plastic |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Micro-SIM Nano-SIM / microSD | Micro-SIM | Micro-SIM Nano-SIM / microSD | Micro-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) | - |
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 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 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 1900 MHz W-CDMA 2100 MHz | W-CDMA 900 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz | W-CDMA 900 MHz W-CDMA 2100 MHz |
| LTE | LTE 800 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz | LTE 700 MHz Class 17 LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 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 4 | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ | UMTS EDGE GPRS HSPA+ |
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 6.0 Marshmallow | Freeme OS 6.0 (Android 6.0 Marshmallow) | Android 7.0 Nougat | Android 6.0 Marshmallow |
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 MT6737T | MediaTek MT6737 | MediaTek MT6580 | MediaTek MT6580 |
| Process technology | 28 nm | 28 nm | 28 nm | 28 nm |
| CPU | 4x 1.5 GHz ARM Cortex-A53 | 4x 1.3 GHz ARM Cortex-A53 | 4x 1.3 GHz ARM Cortex-A7 | 4x 1.3 GHz ARM Cortex-A7 |
| CPU bits | 64 bit | 64 bit | 32 bit | 32 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv7-A | ARMv7-A |
| Level 1 cache memory (L1) | 32 KB + 32 KB | 32 KB + 32 KB | 32 KB + 32 KB | 32 KB + 32 KB |
| Level 2 cache memory (L2) | 512 KB 0.5 MB | 512 KB 0.5 MB | 512 KB 0.5 MB | 512 KB 0.5 MB |
| CPU cores | 4 | 4 | 4 | 4 |
| CPU frequency | 1500 MHz | 1300 MHz | 1300 MHz | 1300 MHz |
| GPU | ARM Mali-T720 MP2 | ARM Mali-T720 MP2 | ARM Mali-400 MP1 | ARM Mali-400 MP1 |
| GPU cores | 2 | 2 | 1 | 1 |
| GPU frequency | 600 MHz | 550 MHz | 500 MHz | 500 MHz |
| RAM capacity | 2 GB | 2 GB | 2 GB | 1 GB |
| RAM type | LPDDR3 | LPDDR3 | LPDDR2/LPDDR3 | LPDDR2/LPDDR3 |
| RAM channels | Single channel | Single channel | Single channel | Single channel |
| RAM frequency | 733 MHz | 640 MHz | 533 MHz | 533 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB | 16 GB | 16 GB | 16 GB |
| eMMC | eMMC | - | - |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC microSDXC | microSD microSDHC microSDXC | microSD microSDHC | 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 | 5.5 in 139.7 mm 13.97 cm | 5.7 in 144.78 mm 14.48 cm | 5.5 in 139.7 mm 13.97 cm | 6 in 152.4 mm 15.24 cm |
| Width | 2.7 in 68.49 mm 6.85 cm | 2.79 in 70.98 mm 7.1 cm | 2.7 in 68.49 mm 6.85 cm | 2.94 in 74.72 mm 7.47 cm |
| Height | 4.79 in 121.76 mm 12.18 cm | 4.97 in 126.19 mm 12.62 cm | 4.79 in 121.76 mm 12.18 cm | 5.23 in 132.83 mm 13.28 cm |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 1080 x 1920 pixels | 720 x 1280 pixels | 720 x 1280 pixels | 720 x 1280 pixels |
| Pixel density | 401 ppi 157 ppcm | 258 ppi 101 ppcm | 267 ppi 104 ppcm | 245 ppi 96 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 72.61 % | 72.88 % | 71.39 % | 74.65 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch |
| 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 Viewing angle - 178° | 2.5D curved glass screen | Full Lamination Technology |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Gyroscope Fingerprint | Proximity Light Accelerometer Fingerprint | Proximity Light Accelerometer Fingerprint | 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 | Sony IMX135 Exmor RS | GalaxyCore GC8024 | GalaxyCore GC8024 | - |
| Sensor type | CMOS | CMOS BSI | CMOS BSI | CMOS |
| Sensor size | 4.69 x 3.52 mm 0.23 in | 3.67 x 2.76 mm 0.18 in | 3.67 x 2.76 mm 0.18 in | - |
| Pixel size | 1.127 µm 0.001127 mm | 1.124 µm 0.001124 mm | 1.124 µm 0.001124 mm | - |
| Crop factor | 7.38 | 9.42 | 9.42 | - |
| Aperture | f/2 | - | - | - |
| Focal length and 35 mm equivalent | 3.5 mm 25.82 mm *(35 mm / full frame) | - | - | - |
| Flash type | Dual LED | LED | LED | Dual LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1280 x 720 pixels 0.92 MP | 1280 x 720 pixels 0.92 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 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 - 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 Secondary rear camera - 5 MP (monochrome) | Interpolated resolution - 13 MP Secondary rear camera - 2 MP (interpolated from 0.3 MP) | 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 | GalaxyCore GC5025 | - |
| Sensor type | CMOS | CMOS | CMOS | - |
| Sensor size | 2.92 x 2.2 mm 0.14 in | 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 | 1.141 µm 0.001141 mm | - |
| Crop factor | 11.84 | 11.84 | 11.84 | - |
| Aperture | - | f/2.4 | - | - |
| Focal length and 35 mm equivalent | 3.5 mm 41.45 mm *(35 mm / full frame) | - | - | - |
| Field of view | - | 77.9 ° | - | - |
| Auxiliary light | - | - | LED | - |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 2592 x 1944 pixels 5.04 MP | 2560 x 1920 pixels 4.92 MP | 1600 x 1200 pixels 1.92 MP |
| Video resolution | - | 640 x 480 pixels 0.31 MP | 640 x 480 pixels 0.31 MP | 640 x 480 pixels 0.31 MP |
| Video FPS | - | 30 fps | 30 fps | 30 fps |
| Interpolated resolution - 8 MP | Interpolated resolution - 8 MP | Interpolated resolution - 8 MP Secondary rear camera - 2 MP (interpolated from 0.3 MP) | Interpolated resolution - 8 MP |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker |
| - | Awinic K7 SNR 97dB | - | - |
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 | GPS A-GPS GLONASS | GPS A-GPS | GPS A-GPS GLONASS | 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 Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11a 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.0 | 4.0 | 4.0 | 4.0 |
| 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 | Micro USB | 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 On-The-Go | Charging Mass storage | 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 | 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+ 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 Flash Video MKV QuickTime MP4 Xvid | 3GPP AVI H.263 H.264 MKV MP4 VP8 Xvid | 3GPP AVI MP4 Xvid | 3GPP AVI 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 | 3000 mAh | 3500 mAh | 2500 mAh | 3100 mAh |
| Type | Li-Ion | Li-Ion | Li-Ion | Li-Ion |
| 2G talk time | - | 7 h 420 min 0.3 days | - | - |
| 2G stand-by time | - | 200 h 12000 min 8.3 days | - | - |
| 3G talk time | - | 7 h 420 min 0.3 days | - | - |
| 3G stand-by time | - | 200 h 12000 min 8.3 days | - | - |
| Charger output power | 5 V / 1.5 A | 5 V / 1 A | 5 V / 1 A | - |
| Features | Non-removable | Removable | Removable | Non-removable |
| Bluboo Dual | Leagoo M8 Pro | Oukitel U22 | Uhans S3 |