Comparison between:
- Blackview BV6600
- Samsung Galaxy M21 2021
- Sugar C21
- Oukitel OK6000 Plus
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Blackview BV6600 | Samsung Galaxy M21 2021 | Sugar C21 | Oukitel OK6000 Plus | |
 Prices |  |  |  | |
| Model alias | - | SM-M215G SM-M215G/DS | - | OK6000Plus OK6000+ |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 78.2 mm 7.82 cm 0.257 ft 3.079 in | 75.1 mm 7.51 cm 0.246 ft 2.957 in | 75.4 mm 7.54 cm 0.247 ft 2.969 in | 76.6 mm 7.66 cm 0.251 ft 3.016 in |
| Height | 159.6 mm 15.96 cm 0.524 ft 6.283 in | 159 mm 15.9 cm 0.522 ft 6.26 in | 158.5 mm 15.85 cm 0.52 ft 6.24 in | 155 mm 15.5 cm 0.509 ft 6.102 in |
| Thickness | 12.8 mm 1.28 cm 0.042 ft 0.504 in | 9 mm 0.9 cm 0.03 ft 0.354 in | 11.2 mm 1.12 cm 0.037 ft 0.441 in | 9.6 mm 0.96 cm 0.031 ft 0.378 in |
| Weight | 230 g 0.51 lbs 8.11 oz | 192 g 0.42 lbs 6.77 oz | 210 g 0.46 lbs 7.41 oz | 207 g 0.46 lbs 7.3 oz |
| Volume | 159.75 cm³ 9.7 in³ | 107.47 cm³ 6.53 in³ | 133.85 cm³ 8.13 in³ | 113.98 cm³ 6.92 in³ |
| Colors | Black Green Yellow Orange | Charcoal Black Arctic Blue | Blue Red | Black Gold |
| Body materials | Plastic TPU Aluminium alloy | Plastic | Metal | Aluminium alloy |
| Certification | IP68 IP69K MIL-STD-810G | - | - | - |
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 | Nano-SIM | 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 (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 GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| CDMA | - | - | CDMA 800 MHz | - |
| W-CDMA | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 1700 MHz (B4) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) | - | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1700 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz |
| TD-SCDMA | - | - | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz | - |
| UMTS | - | 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-TDD 2300 MHz (B40) | 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 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 700 MHz (B28) | LTE 700 MHz Class 17 LTE 800 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 MHz LTE 700 MHz (B28) |
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 | UMTS EDGE GPRS HSPA+ LTE Cat 7 | UMTS EDGE GPRS HSPA+ LTE Cat 6 |
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 10 | Android 11 | Android 8.1 Oreo | Android 7.0 Nougat |
| User interface (UI) | - | One UI 3.1 Core | - | - |
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 A25 (MT6762V) | Samsung Exynos 7 Octa 9611 | Qualcomm Snapdragon 450 (SDM450) | MediaTek MT6750T |
| Process technology | 12 nm | 10 nm | 14 nm | 28 nm |
| CPU | 4x 1.8 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53 | 4x 2.3 GHz ARM Cortex-A73, 4x 1.7 GHz ARM Cortex-A53 | 8x 1.8 GHz ARM Cortex-A53 | 4x 1.5 GHz ARM Cortex-A53, 4x 1.0 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 |
| Level 2 cache memory (L2) | - | - | - | 512 KB 0.5 MB |
| CPU cores | 8 | 8 | 8 | 8 |
| CPU frequency | 1800 MHz | 2300 MHz | 1800 MHz | 1500 MHz |
| GPU | IMG PowerVR GE8320 | ARM Mali-G72 MP3 | Qualcomm Adreno 506 | ARM Mali-T860 MP2 |
| GPU cores | - | 3 | - | 2 |
| GPU frequency | 600 MHz | 850 MHz | 600 MHz | 650 MHz |
| RAM capacity | 4 GB | 4 GB 6 GB | 4 GB | 4 GB |
| RAM type | LPDDR4X | LPDDR4X | LPDDR3 | LPDDR3 |
| RAM channels | Double channel | Double channel | Single channel | Single channel |
| RAM frequency | 1600 MHz | 1600 MHz | 933 MHz | 933 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 64 GB | 64 GB 128 GB | 64 GB | 64 GB |
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 |
| - | UFS 2.1 | - | - |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | IPS | Super AMOLED | IPS | IPS |
| Diagonal size | 5.7 in 144.78 mm 14.48 cm | 6.4 in 162.56 mm 16.26 cm | 6.26 in 159 mm 15.9 cm | 5.5 in 139.7 mm 13.97 cm |
| Width | 2.55 in 64.75 mm 6.47 cm | 2.68 in 68.12 mm 6.81 cm | 2.71 in 68.91 mm 6.89 cm | 2.7 in 68.49 mm 6.85 cm |
| Height | 5.1 in 129.5 mm 12.95 cm | 5.81 in 147.6 mm 14.76 cm | 5.64 in 143.3 mm 14.33 cm | 4.79 in 121.76 mm 12.18 cm |
| Aspect ratio | 2:1 2:1 (18:9) | 2.167:1 | 2.08:1 | 1.778:1 16:9 |
| Resolution | 720 x 1440 pixels | 1080 x 2340 pixels | 1080 x 2246 pixels | 1080 x 1920 pixels |
| Pixel density | 282 ppi 110 ppcm | 403 ppi 158 ppcm | 398 ppi 156 ppcm | 401 ppi 157 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 67.4 % | 84.48 % | 82.89 % | 70.46 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant |
| Corning Gorilla Glass 3 | Infinity U Display 2.5D curved glass screen Corning Gorilla Glass 3 Peak brightness - 420 cd/m² 78960:1 | 2.5D curved glass screen LTPS (Low Temperature PolySilicon) 1000:1 contrast ratio 450 cd/m² | Dragontrail glass 2.5D curved glass screen LTPS (Low Temperature PolySilicon) |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Magnetometer Fingerprint | Proximity Accelerometer Compass Gyroscope Geomagnetic Fingerprint Virtual Light Sensor | Proximity Light Accelerometer Compass Gyroscope 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 | Samsung S5K3P9SX | Samsung S5KGM2 | - | - |
| Sensor type | ISOCELL | CMOS BSI | CMOS | CMOS |
| Sensor size | 4.64 x 3.48 mm 0.23 in | - | - | - |
| Sensor format | 1/3.1" | 1/2" | - | - |
| Pixel size | 1 µm 0.001000 mm | 0.8 µm 0.000800 mm | - | - |
| Crop factor | 7.46 | - | - | - |
| ISO | 100 - 1600 | - | - | 100 - 1600 |
| Aperture | f/2 | f/2 | f/2.2 | f/2 |
| Focal length and 35 mm equivalent | 3.64 mm 27.15 mm *(35 mm / full frame) | 26 mm *(35 mm / full frame) | - | - |
| Field of view | 65 ° | - | - | - |
| Flash type | LED | LED | Dual LED | Dual LED |
| Image resolution | 4608 x 3456 pixels 15.93 MP | 8000 x 6000 pixels 48 MP | 4032 x 3024 pixels 12.19 MP | 4608 x 3456 pixels 15.93 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 3840 x 2160 pixels 8.29 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 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 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 | 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) |
| Also available with SK Hynix HI-1634 Secondary rear camera - 0.3 MP Sensor model - GalaxyCore GC032A (#2) Third rear camera - 0.3 MP Sensor model - GalaxyCore GC032A (#3) | Secondary rear camera - 5 MP (depth) Aperture size - f/2.2 (#2) Third rear camera - 8 MP (ultra-wide angle) Sensor size - 1/4" (#3) Pixel size - 1.12 µm (#3) Aperture size - f/2.2 (#3) Angle of view - 123° (#3) | Secondary rear camera - 2 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 | Sony IMX219 Exmor R | - | - | - |
| Sensor type | CMOS BSI | CMOS BSI | - | - |
| Sensor size | 3.66 x 2.74 mm 0.18 in | - | - | - |
| Sensor format | 1/4" | - | - | - |
| Pixel size | 1.12 µm 0.001120 mm | - | - | - |
| Crop factor | 9.46 | - | - | - |
| ISO | 100 - 1600 | - | - | - |
| Aperture | f/2 | f/2.2 | f/2.4 | - |
| Focal length and 35 mm equivalent | 2.71 mm 25.65 mm *(35 mm / full frame) | 26 mm *(35 mm / full frame) | - | - |
| Field of view | 68.1 ° | - | - | - |
| Number of lenses | - | - | 5 | - |
| Image resolution | 3264 x 2448 pixels 7.99 MP | 20 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 | 1920 x 1080 pixels 2.07 MP | 640 x 480 pixels 0.31 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| Features | Face unlock HDR | Face unlock | Face unlock | - |
| Also available with Sony IMX134 | - | - | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
| - | Dolby Atmos for stereo headsets Widevine L1 Certification | - | - |
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 BeiDou Galileo | GPS A-GPS GLONASS BeiDou | GPS A-GPS BeiDou | GPS A-GPS GLONASS |
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 | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 5.0 | 5.0 | 4.2 | 4.2 |
| Features | A2DP LE | A2DP LE | 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 | USB Type-C | 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 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 | No | 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 MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ FLAC M4A 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 DivX H.263 H.264 MKV MP4 WebM Xvid | 3GPP 3GPP2 AVI Flash Video H.263 H.264 H.265 MKV MP4 VC-1 VP8 VP9 WebM WMV WMV7 WMV8 Xvid | 3GPP AVI Flash Video H.263 H.264 MKV QuickTime MP4 WMV 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 | 8580 mAh | 6000 mAh | 6100 mAh | 6080 mAh |
| Type | Li-Polymer | Li-Ion | Li-Polymer | Li-Polymer |
| 2G talk time | - | - | 54 h 3240 min 2.3 days | 46 h 2760 min 1.9 days |
| 2G stand-by time | - | - | - | 365 h 21900 min 15.2 days |
| 3G talk time | - | - | 54 h 3240 min 2.3 days | 46 h 2760 min 1.9 days |
| 3G stand-by time | - | - | - | 365 h 21900 min 15.2 days |
| Charger output power | 5 V / 3 A 9 V / 2 A 12 V / 1.5 A | 5 V / 3 A | 9 V / 2 A | 5 V / 2 A 7 V / 2 A 9 V / 2 A 12 V / 2 A |
| Features | Fast charging Non-removable | Fast charging Non-removable | Fast charging Non-removable | Fast charging 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 (EU) | - | 0.492 W/kg | - | - |
| Body SAR (EU) | - | 1.13 W/kg | - | - |
| Head SAR (India) | - | 0.468 W/kg | - | - |
| Blackview BV6600 | Samsung Galaxy M21 2021 | Sugar C21 | Oukitel OK6000 Plus |