Comparison between:
- Oppo A57
- Huawei nova 3i
- Huawei nova 7i
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Oppo A57 | Huawei nova 3i | Huawei nova 7i | |
 Prices |  Prices |  | |
| Model alias | CPH2387 | nova3i INE-AL00 INE-TL00 INE-LX2 | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 75.03 mm 7.503 cm 0.246 ft 2.954 in | 75.2 mm 7.52 cm 0.247 ft 2.961 in | 76.3 mm 7.63 cm 0.25 ft 3.004 in |
| Height | 163.74 mm 16.374 cm 0.537 ft 6.446 in | 157.6 mm 15.76 cm 0.517 ft 6.205 in | 159.2 mm 15.92 cm 0.522 ft 6.268 in |
| Thickness | 7.99 mm 0.799 cm 0.026 ft 0.315 in | 7.6 mm 0.76 cm 0.025 ft 0.299 in | 8.7 mm 0.87 cm 0.029 ft 0.343 in |
| Weight | 187 g 0.41 lbs 6.6 oz | 169 g 0.37 lbs 5.96 oz | 183 g 0.4 lbs 6.46 oz |
| Volume | 98.16 cm³ 5.96 in³ | 90.07 cm³ 5.47 in³ | 105.68 cm³ 6.42 in³ |
| Colors | Glowing Green Glowing Black | Black Purple White Red | Crush Green Midnight Black Sakura Pink |
| Body materials | Plastic | Aluminium alloy 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 | Nano-SIM | Nano-SIM / microSD Micro-SIM | Nano-SIM Nano-SIM / microSD |
| Number of SIM cards | 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 (В5) GSМ 1800 МНz (В3) | GSМ 850 МНz GSМ 900 МНz GSМ 1900 МНz | GSМ 850 МНz (В5) GSМ 900 МНz (В8) GSМ 1900 МНz (В2) |
| CDMA | - | - | CDMA 800 MHz (BC0) |
| W-CDMA | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) | - | W-CDMA 850 MHz (B5) W-CDMA 850 MHz (B6) W-CDMA 900 MHz (B8) W-CDMA 1700 MHz (B4) W-CDMA 1700 MHz (B9) W-CDMA 2100 MHz (B1) |
| TD-SCDMA | - | - | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz |
| UMTS | - | UМТS 900 МНz UМТS 2100 МНz | - |
| LTE | LТЕ-FDD 700 МНz (В28) LТЕ-FDD 800 МНz (В20) LТЕ-FDD 850 МНz (В5) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 2100 МНz (В1) LТЕ-FDD 2600 МНz (В7) LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2600 МНz (В38) | LТЕ 850 МНz LТЕ 900 МНz LТЕ 1800 МНz LТЕ 2100 МНz LТЕ 2600 МНz LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2500 МНz (В41) LТЕ 700 МНz (В28) | LТЕ-FDD 850 МНz (В5) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 2100 МНz (В1) 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 | UМТS GРRS LТЕ Саt 12 | UМТS GРRS LТЕ Саt 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) | ОriginОS 12.1 (Аndrоid 12) | Аndrоid 8.1 Оrео Аndrоid 9.0 Рiе | Аndrоid 10 |
| User interface (UI) | - | EMUI 8.2 EMUI 9.0 | EMUI 10.0.1 |
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 Неliо G35 (МТ6765G) | Нuаwеi НiSiliсоn ΚΙRΙΝ 710 | Нuаwеi НiSiliсоn ΚΙRΙΝ 810 |
| Process technology | 12 nm | 12 nm | 7 nm |
| CPU | 4х 2.3 GНz АRМ Соrtех-А53, 4х 1.8 GНz АRМ Соrtех-А53 | 4х 2.2 GНz АRМ Соrtех-А73, 4х 1.7 GНz АRМ Соrtех-А53 | 2х 2.27 GНz АRМ Соrtех-А76, 6х 1.88 GНz АRМ Соrtех-А55 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8.2-A | ARMv8-A | ARMv8-A |
| Level 1 cache memory (L1) | 16 KB + 16 KB | 16 KB + 16 KB | 16 KB + 16 KB |
| CPU cores | 8 | 8 | 8 |
| CPU frequency | 2300 MHz | 2200 MHz | 2270 MHz |
| GPU | IMG PowerVR GE8320 | ARM Mali-G51 MP4 | ARM Mali-G52 MP6 |
| GPU cores | - | 4 | 6 |
| GPU frequency | 680 MHz | 1000 MHz | 820 MHz |
| RAM capacity | 3 GB 4 GB | 4 GB 6 GB | 8 GB |
| RAM type | LPDDR4X | - | - |
| RAM channels | Double channel | - | - |
| RAM frequency | 1500 MHz | - | - |
| - | GPU Turbo | GPU Turbo |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 64 GB | 64 GB 128 GB | 128 GB |
| eMMC 5.1 | UFS 2.0 | UFS 2.1 |
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 | A-Si IPS | IPS | IPS |
| Diagonal size | 6.56 in 166.62 mm 16.66 cm | 6.3 in 160.02 mm 16 cm | 6.4 in 162.56 mm 16.26 cm |
| Width | 2.69 in 68.38 mm 6.84 cm | 2.59 in 65.67 mm 6.57 cm | 2.74 in 69.59 mm 6.96 cm |
| Height | 5.98 in 151.95 mm 15.19 cm | 5.75 in 145.93 mm 14.59 cm | 5.78 in 146.91 mm 14.69 cm |
| Aspect ratio | 2.222:1 | 2.222:1 | 2.111:1 |
| Resolution | 1080 x 2400 pixels | 1080 x 2400 pixels | 720 x 1520 pixels |
| Pixel density | 401 ppi 157 ppcm | 418 ppi 164 ppcm | 263 ppi 103 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 84.84 % | 81.12 % | 84.44 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch |
| 2.5D curved glass screen Panda MN228 glass 480 cd/m² typical brightness 600 cd/m² peak brightness | 2.5D curved glass screen 85% NTSC | 2.5D curved glass screen DCI-P3 |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Geomagnetic Fingerprint | Proximity Light Accelerometer Compass Gyroscope | Proximity Light Accelerometer Compass |
| Side-mounted fingerprint sensor | - | Side-mounted fingerprint sensor |
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 BSI | - |
| Sensor format | - | - | 1/2" |
| Pixel size | 1.12 µm 0.001120 mm | - | 0.8 µm 0.000800 mm |
| Aperture | f/2.2 | f/2.2 | f/1.8 |
| Focal length and 35 mm equivalent | - | - | 26 mm *(35 mm / full frame) |
| Field of view | 80 ° | - | - |
| Number of lenses | 5 | 6 | - |
| Flash type | LED | LED | LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4608 x 3456 pixels 15.93 MP | 8000 x 6000 pixels 48 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 3840 x 2160 pixels 8.29 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 Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) Contrast detection autofocus (CDAF) |
| Secondary rear camera - 2 MP (depth sensing) Aperture size - f/2.4 (#2) Angle of view - 89° (#2) 3-element lens (#2) | Secondary rear camera - 2 MP | Pixel size - 1.6 μm (4-in-1 pixel binning) Secondary rear camera - 8 MP (ultra-wide angle) Aperture size - f/2.4 (#2) Third rear camera - 2 MP (depth-sensing) Sensor size - 1.5" (#3) Pixel size - 1.75 μm (#3) Aperture size - f/2.4 (#3) Fourth rear camera - 2 MP (macro) Pixel size - 1.75 μm (#4) Aperture size - f/2.4 (#4) Macro distance - 4 cm (#4) |
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 | CMOS BSI | CMOS BSI |
| Sensor format | - | - | 1/3.1" |
| Pixel size | - | - | 1 µm 0.001000 mm |
| Aperture | f/2 | f/2 | f/2 |
| Field of view | 79 ° | - | - |
| Number of lenses | 5 | - | - |
| Image resolution | 3520 x 2270 pixels 7.99 MP | 6016 x 3954 pixels 23.79 MP | 4864 x 3274 pixels 15.92 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 | Face unlock | - | Face unlock HDR |
| - | Secondary front camera - 2 MP | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | - | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GРS А-GРS | GРS А-GРS GLОΝАSS | 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 | 802.11b 802.11g 802.11а 802.11ас 5GНz 802.11аd | 802.11а 802.11b 802.11g Wi-Fi Disрlаy 802.11а |
| - | 2x2 MiMO | - |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 5.3 | 4.2 | 5.0 |
| Features | A2DP | A2DP EDR LE | A2DP EDR LE |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | USB Type-C | 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 | Yes | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering VoLTE | 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 |
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 aptX aptX HD FLAC MIDI MP3 OGG WMA WAV APE LDAC | AAC AAC+ AMR AMR-WB aptX aptX HD eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB aptX eAAC+ FLAC MIDI MP3 OGG WMA WAV HWA |
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 MP4 WebM WMV Xvid | 3GPP AVI DivX H.263 H.264 H.265 MP4 VP8 VP9 WebM WMV Xvid | 3GPP AVI DivX H.263 H.264 H.265 MP4 VP8 VP9 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 | 5000 mAh | 3340 mAh | 4200 mAh |
| Type | Li-Ion | Li-Polymer | Li-Polymer |
| Charger output power | 11 V / 3 A | 5 V / 2 A | 10 V / 4 A |
| Quick charge technology | - | - | Huawei Super Charge 2.0 |
| Features | Fast charging Non-removable | 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) | - | 0.58 W/kg | - |
| Body SAR (EU) | - | 0.71 W/kg | - |
| Oppo A57 | Huawei nova 3i | Huawei nova 7i |