Comparison between:
- Bluboo S8
- Koobee F1
- Asus ZenFone 3S Max ZC521TL
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Bluboo S8 | Koobee F1 | Asus ZenFone 3S Max ZC521TL | |
 |  |  | |
| Model alias | - | - | ZC521TL X00GD |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 70.6 mm 7.06 cm 0.232 ft 2.78 in | 71.5 mm 7.15 cm 0.235 ft 2.815 in | 73.7 mm 7.37 cm 0.242 ft 2.902 in |
| Height | 149.5 mm 14.95 cm 0.49 ft 5.886 in | 153.3 mm 15.33 cm 0.503 ft 6.035 in | 149.5 mm 14.95 cm 0.49 ft 5.886 in |
| Thickness | 8.4 mm 0.84 cm 0.028 ft 0.331 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in | 8.85 mm 0.885 cm 0.029 ft 0.348 in |
| Weight | 192 g 0.42 lbs 6.77 oz | 179 g 0.39 lbs 6.31 oz | 175 g 0.39 lbs 6.17 oz |
| Volume | 88.66 cm³ 5.38 in³ | 86.59 cm³ 5.26 in³ | 97.51 cm³ 5.92 in³ |
| Colors | Gold Blue Black | Gold Rose-gold Black Blue | Gold Black |
| Body materials | Metal | Metal Glass | Metal 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 | Nano-SIM / microSD Micro-SIM | Nano-SIM / microSD Nano-SIM | Micro-SIM Nano-SIM / microSD |
| Number of SIM cards | 2 | 2 | 2 |
| - | - | SIM1 - 2G; 3G; 4G SIM2 - 2G; 3G; 4G |
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 |
| 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 1900 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 |
| UMTS | - | - | UМТS 900 МНz UМТS 1900 МНz UМТS 2100 МНz |
| LTE | LТЕ 800 МНz LТЕ 900 МНz LТЕ 1800 МНz LТЕ 2600 МНz | LТЕ 850 МНz LТЕ 900 МНz 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 850 МНz LТЕ 1800 МНz LТЕ 2100 МНz LТЕ 2600 МНz LТЕ-ТDD 1900 МНz (В39) LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2600 МНz (В38) |
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 6 | UМТS GРRS LТЕ Саt 4 | UМТS GРRS LТЕ Саt 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) | Аndrоid 7.0 Νоugаt | didо 7.6 (Аndrоid 6.0 Маrshmаllоw) | Аndrоid 7.0 Νоugаt |
| User interface (UI) | - | - | ZenUI 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 | МеdiаТеk МТ6735 | МеdiаТеk МТ6580А | МеdiаТеk МТ6737М |
| Process technology | 28 nm | 28 nm | 28 nm |
| CPU | 4х 1.5 GНz АRМ Соrtех-А53, 4х 1.0 GНz АRМ Соrtех-А53 | 4х 1.5 GНz АRМ Соrtех-А53, 4х 1.0 GНz АRМ Соrtех-А53 | 4х 1.5 GНz АRМ Соrtех-А53, 4х 1.0 GНz АRМ Соrtех-А53 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8-A |
| Level 1 cache memory (L1) | 16 KB + 16 KB | 16 KB + 16 KB | 16 KB + 16 KB |
| Level 2 cache memory (L2) | 512 KB 0.5 MB | 512 KB 0.5 MB | 512 KB 0.5 MB |
| CPU cores | 8 | 8 | 8 |
| CPU frequency | 1500 MHz | 1500 MHz | 1500 MHz |
| GPU | ARM Mali-T860 MP2 | ARM Mali-T860 MP2 | ARM Mali-T860 MP2 |
| GPU cores | 2 | 2 | 2 |
| GPU frequency | 650 MHz | 520 MHz | 520 MHz |
| RAM capacity | 3 GB | 4 GB | 3 GB |
| RAM type | LPDDR4 | LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Single channel | Single channel |
| RAM frequency | 1066 MHz | 700 MHz | 700 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 32 GB | 64 GB | 32 GB 64 GB |
| 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 |
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 |
| Diagonal size | 5.7 in 144.78 mm 14.48 cm | 5.7 in 144.78 mm 14.48 cm | 5.2 in 132.08 mm 13.21 cm |
| Width | 2.73 in 69.23 mm 6.92 cm | 2.55 in 64.75 mm 6.47 cm | 2.55 in 64.75 mm 6.48 cm |
| Height | 5.01 in 127.16 mm 12.72 cm | 5.1 in 129.5 mm 12.95 cm | 4.53 in 115.12 mm 11.51 cm |
| Aspect ratio | 1.837:1 | 2:1 2:1 (18:9) | 1.778:1 16:9 |
| Resolution | 1176 x 2160 pixels | 1080 x 2160 pixels | 1080 x 1920 pixels |
| Pixel density | 431 ppi 169 ppcm | 424 ppi 166 ppcm | 424 ppi 166 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 83.67 % | 76.74 % | 67.87 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch |
| Display manufacturer - Sharp 2.5D curved glass screen GFF full lamination 1000:1 contrast ratio 490 cd/m² | Corning Gorilla Glass 3D curved glass screen | 2.5D curved glass screen 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 | Proximity Light Accelerometer Compass | 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 IMX135 Exmor RS | Sony IMX298 Exmor RS | - |
| Sensor type | CMOS | CMOS | CMOS |
| Sensor size | 4.69 x 3.52 mm 0.23 in | 5.22 x 3.92 mm 0.26 in | - |
| Pixel size | 1.145 µm 0.001145 mm | 1.132 µm 0.001132 mm | - |
| Crop factor | 7.38 | 6.63 | - |
| Aperture | f/2 | f/2 | f/2 |
| Focal length and 35 mm equivalent | 3.5 mm 25.82 mm *(35 mm / full frame) | - | 3.5 mm |
| Number of lenses | - | - | 5 |
| Flash type | Dual LED | LED | Dual LED |
| Image resolution | 4096 x 3072 pixels 12.58 MP | 4608 x 3456 pixels 15.93 MP | 4160 x 3120 pixels 12.98 MP |
| Video resolution | 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 |
| Features | Autofocus Continuous shooting Digital zoom 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 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 Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode |
| Secondary rear camera - 3 MP | Secondary rear camera | - |
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 | - | - |
| Aperture | f/2.8 | - | - |
| Focal length and 35 mm equivalent | 3.5 mm | - | - |
| Field of view | - | - | 85 ° |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 4864 x 3274 pixels 15.92 MP | 3520 x 2270 pixels 7.99 MP |
| Video resolution | 640 x 480 pixels 0.31 MP | 1280 x 720 pixels 0.92 MP | 1280 x 720 pixels 0.92 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
| 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 |
| Headphone adapter | - | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes |
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 |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11а 802.11b 802.11g Wi-Fi Disрlаy 802.11а 802.11ас 5GНz 802.11аd | 802.11b 802.11g 802.11а | 802.11b 802.11g 802.11а |
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 |
| Features | A2DP | A2DP | A2DP EDR |
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 |
| Version | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage On-The-Go | Charging Mass storage | 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 | 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 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 |
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 eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC M4A MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB 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 MP4 Xvid | 3GPP AVI MKV MP4 WMV Xvid | 3GPP AVI MKV MP4 WebM WMV 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 | 3450 mAh | 3000 mAh | 5000 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| 2G talk time | 36 h 2160 min 1.5 days | - | 28 h 1680 min 1.2 days |
| 2G stand-by time | - | - | 740 h 44400 min 30.8 days |
| 3G talk time | 36 h 2160 min 1.5 days | - | 28 h 1680 min 1.2 days |
| 3G stand-by time | - | - | 740 h 44400 min 30.8 days |
| Charger output power | 5 V / 2 A | 5 V / 2 A | 5 V / 2 A |
| Features | Fast charging Non-removable | Fast charging 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) | - | - | 0.69 W/kg |
| Body SAR (USA) | - | - | 1.5 W/kg |
| Bluboo S8 | Koobee F1 | Asus ZenFone 3S Max ZC521TL |
