Comparison between:
- Black Fox B4NFC
- Senseit A200
- ZTE Blade A31
- ZTE Blade A3 2020
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Black Fox B4NFC | Senseit A200 | ZTE Blade A31 | ZTE Blade A3 2020 | |
 |  |  |  | |
| Model alias | BMM543S | - | - | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 65.5 mm 6.55 cm 0.215 ft 2.579 in | 71.4 mm 7.14 cm 0.234 ft 2.811 in | 70.7 mm 7.07 cm 0.232 ft 2.783 in | 70.9 mm 7.09 cm 0.233 ft 2.791 in |
| Height | 137 mm 13.7 cm 0.449 ft 5.394 in | 143.5 mm 14.35 cm 0.471 ft 5.65 in | 146 mm 14.6 cm 0.479 ft 5.748 in | 146.1 mm 14.61 cm 0.479 ft 5.752 in |
| Thickness | 10.5 mm 1.05 cm 0.034 ft 0.413 in | 8.95 mm 0.895 cm 0.029 ft 0.352 in | 9.3 mm 0.93 cm 0.031 ft 0.366 in | 9.5 mm 0.95 cm 0.031 ft 0.374 in |
| Weight | - | 139 g 0.31 lbs 4.9 oz | 166 g 0.37 lbs 5.86 oz | 160 g 0.35 lbs 5.64 oz |
| Volume | 94.22 cm³ 5.72 in³ | 91.7 cm³ 5.57 in³ | 96 cm³ 5.83 in³ | 98.41 cm³ 5.98 in³ |
| Colors | Black Gold | Black | Dark Blue Black | Black Purple Red |
| Body materials | Plastic | Plastic | Plastic | 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 Micro-SIM | Micro-SIM | 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 GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | 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 (B8) W-CDMA 2100 MHz (B1) | - |
| UMTS | UMTS 900 MHz (B8) UMTS 2100 MHz (B1) | UMTS 850 MHz UMTS 900 MHz UMTS 2100 MHz | - | UMTS 850 MHz (B5) UMTS 900 MHz (B8) UMTS 1900 MHz (B2) UMTS 2100 MHz (B1) |
| LTE | LTE-FDD 800 MHz (B20) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) | LTE 800 MHz LTE 1800 MHz LTE 2600 MHz | LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) 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 2100 MHz (B1) LTE-FDD 2600 MHz (B7) 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 Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 5 | 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) | Android 9.0 Pie | Android 6.0.1 Marshmallow | Android 11 Go edition | Android 9.0 Pie Go Edition |
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 MT6739WA | MediaTek MT6735P | Unisoc SC9863A | Spreadtrum SC9832E |
| Process technology | 28 nm | 28 nm | 28 nm | 28 nm |
| CPU | 4x 1.3 GHz ARM Cortex-A53 | 4x 1.0 GHz ARM Cortex-A53 | 4x 1.6 GHz ARM Cortex-A55, 4x 1.2 GHz ARM Cortex-A55 | 4x 1.4 GHz ARM Cortex-A53 |
| CPU bits | 64 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8.2-A | ARMv8-A |
| Level 1 cache memory (L1) | - | 32 KB + 32 KB | - | - |
| Level 2 cache memory (L2) | - | 512 KB 0.5 MB | - | - |
| CPU cores | 4 | 4 | 8 | 4 |
| CPU frequency | 1300 MHz | 1000 MHz | 1600 MHz | 1400 MHz |
| GPU | IMG PowerVR GE8100 | ARM Mali-T720 MP2 | PowerVR GE8322 / IMG8322 | ARM Mali-T820 MP1 |
| GPU cores | - | 1 | 2 | 1 |
| GPU frequency | 450 MHz | 400 MHz | 550 MHz | 680 MHz |
| RAM capacity | 2 GB | 1 GB | 2 GB | 1 GB |
| RAM type | LPDDR3 | LPDDR3 | LPDDR4/LPDDR4X | LPDDR3 |
| RAM channels | Single channel | Single channel | Double channel | Single channel |
| RAM frequency | 667 MHz | 533 MHz | 1600 MHz | 666 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB | 8 GB | 32 GB | 32 GB |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD microSDHC microSDXC | microSD microSDHC | 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 in 127 mm 12.7 cm | 5.45 in 138.43 mm 13.84 cm | 5.45 in 138.43 mm 13.84 cm |
| Width | 2.24 in 56.8 mm 5.68 cm | 2.45 in 62.26 mm 6.23 cm | 2.44 in 61.91 mm 6.19 cm | 2.44 in 61.91 mm 6.19 cm |
| Height | 4.47 in 113.59 mm 11.36 cm | 4.36 in 110.69 mm 11.07 cm | 4.87 in 123.82 mm 12.38 cm | 4.87 in 123.82 mm 12.38 cm |
| Aspect ratio | 2:1 2:1 (18:9) | 1.778:1 16:9 | 2:1 2:1 (18:9) | 2:1 2:1 (18:9) |
| Resolution | 480 x 960 pixels | 720 x 1280 pixels | 720 x 1440 pixels | 720 x 1440 pixels |
| Pixel density | 215 ppi 84 ppcm | 294 ppi 115 ppcm | 295 ppi 115 ppcm | 295 ppi 115 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 72.13 % | 67.48 % | 74.5 % | 74.24 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch |
| 2.5D curved glass screen | - | - | - |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Fingerprint | Proximity Light Accelerometer | Proximity Light Accelerometer | 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 |
| Aperture | - | f/2.4 | - | f/2.4 |
| Focal length and 35 mm equivalent | - | 4 mm | - | - |
| Flash type | Dual LED | LED | LED | LED |
| Image resolution | 2560 x 1920 pixels 4.92 MP | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP |
| Video resolution | 1280 x 720 pixels 0.92 MP | 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 | 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 |
| Secondary rear camera - 0.3 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 type | - | - | - | CMOS |
| Aperture | f/2.8 | - | f/2.8 | f/2.8 |
| Image resolution | 1920 x 1080 pixels 2.07 MP | 2048 x 1536 pixels 3.15 MP | 1920 x 1080 pixels 2.07 MP | 2560 x 1920 pixels 4.92 MP |
| Video resolution | 640 x 480 pixels 0.31 MP | 640 x 480 pixels 0.31 MP | 640 x 480 pixels 0.31 MP | 640 x 480 pixels 0.31 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| - | - | Software interpolated to 5 MP | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker | Loudspeaker Earpiece | Loudspeaker Earpiece |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS | GPS A-GPS | 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 | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct | 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 | 4.2 | 4.0 | 4.2 | 4.2 |
| Features | EDR LE | A2DP | LE | A2DP AVRCP FTP GAVDP GOEP HFP HSP MAP OBEX OPP PBAP |
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 | Charging Mass storage | 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 NFC | Computer sync OTA sync Tethering | 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 M4A MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | 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 MP4 | 3GPP AVI H.263 H.264 MKV MP4 WMV Xvid | 3GPP AVI H.263 H.264 MKV MP4 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 | 2000 mAh | 2500 mAh | 3000 mAh | 2600 mAh |
| Type | Li-Ion | Li-Ion | Li-Polymer | Li-Ion |
| 2G talk time | - | 10 h 600 min 0.4 days | - | - |
| 2G stand-by time | - | 500 h 30000 min 20.8 days | - | - |
| 3G talk time | - | 10 h 600 min 0.4 days | - | - |
| 3G stand-by time | - | 500 h 30000 min 20.8 days | - | - |
| Charger output power | 5 V / 1 A | 5 V / 1 A | - | 5 V / 1 A |
| Features | Removable | Removable | Non-removable | 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 (EU) | - | - | - | 0.6 W/kg |
| Black Fox B4NFC | Senseit A200 | ZTE Blade A31 | ZTE Blade A3 2020 |