Comparison between:
- Oppo A12
- Xiaomi Redmi A3
- Xiaomi Redmi A3x
- Xiaomi Redmi A3 Pro
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Oppo A12 | Xiaomi Redmi A3 | Xiaomi Redmi A3x | Xiaomi Redmi A3 Pro | |
 |  |  |  | |
| Model alias | CPH2083 CPH2077 | - | - | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 75.5 mm 7.55 cm 0.248 ft 2.972 in | 76.3 mm 7.63 cm 0.25 ft 3.004 in | 76.3 mm 7.63 cm 0.25 ft 3.004 in | 77.8 mm 7.78 cm 0.255 ft 3.063 in |
| Height | 155.9 mm 15.59 cm 0.511 ft 6.138 in | 168.3 mm 16.83 cm 0.552 ft 6.626 in | 168.4 mm 16.84 cm 0.552 ft 6.63 in | 171.88 mm 17.188 cm 0.564 ft 6.767 in |
| Thickness | 8.3 mm 0.83 cm 0.027 ft 0.327 in | 8.32 mm 0.832 cm 0.027 ft 0.328 in | 8.3 mm 0.83 cm 0.027 ft 0.327 in | 8.22 mm 0.822 cm 0.027 ft 0.324 in |
| Weight | 165 g 0.36 lbs 5.82 oz | 199 g 0.44 lbs 7.02 oz | 199 g 0.44 lbs 7.02 oz | 204 g 0.45 lbs 7.2 oz |
| Volume | 97.69 cm³ 5.93 in³ | 106.84 cm³ 6.49 in³ | 106.65 cm³ 6.48 in³ | 109.92 cm³ 6.68 in³ |
| Colors | Blue Black | Black Green Blue | Midnight Black Moonlight White Aurora Green | Black Blue |
| Body materials | Plastic | Plastic | Plastic Glass | Plastic Glass |
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 | 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) | 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 900 МНz (В8) GSМ 1900 МНz (В2) | GSМ 850 МНz (В5) GSМ 900 МНz (В8) GSМ 1900 МНz (В2) | GSМ 850 МНz (В5) GSМ 900 МНz (В8) GSМ 1900 МНz (В2) | GSМ 850 МНz (В5) GSМ 1800 МНz (В3) |
| W-CDMA | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) |
| LTE | LТЕ-FDD 850 МНz (В5) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 2100 МНz (В1) LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2600 МНz (В38) | 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 2500 МНz (В41) | 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-FDD 700 МНz (В28) 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) |
| 5G NR | - | - | - | 5G-FDD 700 MHz (n28) 5G-FDD 850 MHz (n5) 5G-FDD 900 MHz (n8) 5G-FDD 1800 MHz (n3) 5G-FDD 2100 MHz (n1) 5G-TDD 2300 MHz (n40) 5G-TDD 3500 MHz (n78) |
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 | UМТS GРRS LТЕ | UМТS GРRS LТЕ | UМТS GРRS LТЕ |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | СоlоrОS 6.1.2 (Аndrоid 9.0 Рiе) | Аndrоid 14 | Аndrоid 14 | Хiаоmi НyреrОS (Аndrоid 14) |
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 Р35 (МТ6765) | МеdiаТеk Неliо G36 | Unisос Тigеr Т603 | МеdiаТеk Неliо G81 Ultrа |
| Process technology | 12 nm | 12 nm | 28 nm | 12 nm |
| CPU | 4х 2.3 GНz АRМ Соrtех-А53, 4х 1.8 GНz АRМ Соrtех-А53 | 4х 2.2 GНz АRМ Соrtех-А53, 4х 1.8 GНz АRМ Соrtех-А53 | АRМ Соrtех-А55 | 2х 2.0 GНz АRМ Соrtех-А75, 6х 2.0 GНz АRМ Соrtех-А55 |
| CPU bits | 64 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8.2-A | ARMv8.2-A |
| Level 1 cache memory (L1) | 16 KB + 16 KB | 16 KB + 16 KB | 16 KB + 16 KB | 16 KB + 16 KB |
| CPU cores | 8 | 8 | 8 | 8 |
| CPU frequency | 2300 MHz | 2200 MHz | 1600 MHz | 2000 MHz |
| GPU | IMG PowerVR GE8320 | IMG PowerVR GE8320 | PowerVR GE8322 / IMG8322 | ARM Mali-G52 |
| GPU frequency | 680 MHz | 680 MHz | 550 MHz | - |
| RAM capacity | 3 GB 4 GB | 3 GB 4 GB 6 GB | 3 GB 4 GB | 4 GB |
| RAM type | LPDDR4X | LPDDR4X | LPDDR4/LPDDR4X | LPDDR4X |
| RAM channels | Double channel | Double channel | Double channel | Double channel |
| RAM frequency | 1733 MHz | 1733 MHz | 1500 MHz | 2033 MHz |
| - | Virtual RAM expansion | Virtual RAM expansion - 8 GB | Virtual RAM expansion |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 32 GB 64 GB | 64 GB 128 GB | 64 GB 128 GB | 128 GB |
| UFS 2.1 | UFS 2.1 | eMMC 5.1 | eMMC 5.1 |
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 | 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 | 6.22 in 157.99 mm 15.8 cm | 6.71 in 170.43 mm 17.04 cm | 6.71 in 170.43 mm 17.04 cm | 6.88 in 174.75 mm 17.48 cm |
| Width | 2.55 in 64.83 mm 6.48 cm | 2.75 in 69.94 mm 6.99 cm | 2.75 in 69.94 mm 6.99 cm | 2.82 in 71.71 mm 7.17 cm |
| Height | 5.67 in 144.07 mm 14.41 cm | 6.12 in 155.42 mm 15.54 cm | 6.12 in 155.42 mm 15.54 cm | 6.27 in 159.36 mm 15.94 cm |
| Aspect ratio | 2.222:1 | 2.222:1 | 2.222:1 | 2.222:1 |
| Resolution | 1080 x 2400 pixels | 1080 x 2400 pixels | 1080 x 2400 pixels | 1080 x 2400 pixels |
| Pixel density | 423 ppi 166 ppcm | 392 ppi 154 ppcm | 392 ppi 154 ppcm | 383 ppi 150 ppcm |
| Color depth | - | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 79.61 % | 84.92 % | 84.87 % | 85.74 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch |
| In-cell 2.5D curved glass screen Corning Gorilla Glass 3 450 cd/m² 1500:1 | 2.5D curved glass screen Corning Gorilla Glass 3 90 Hz refresh rate 180 Hz touch sampling rate | 2.5D curved glass screen Corning Gorilla Glass 90 Hz refresh rate 500 cd/m² 1500:1 DC Dimming | 2.5D curved glass screen 90 Hz refresh rate |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope | Accelerometer Fingerprint Virtual Proximity | Accelerometer Fingerprint Virtual Proximity | Proximity Light Accelerometer Compass Gyroscope |
| - | Side-mounted fingerprint sensor | Side-mounted fingerprint sensor | Side-mounted fingerprint sensor |
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 type | CMOS | CMOS | CMOS | CMOS BSI |
| Sensor format | 1/3" | - | - | - |
| Pixel size | 1.12 µm 0.001120 mm | - | - | - |
| Aperture | f/2.2 | f/2 | f/2 | f/1.8 |
| Number of lenses | - | - | 4 | 5 |
| Flash type | Dual LED | LED | LED | LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP | 8120 x 6180 pixels 50.18 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 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 | 30 fps |
| Features | Autofocus 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) Night Mode | Autofocus Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode Phase detection autofocus (PDAF) | Autofocus Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode Phase detection autofocus (PDAF) | Autofocus Digital zoom Digital image stabilization Panorama HDR Touch focus White balance settings ISO settings Exposure compensation Self-timer Scene mode |
| - | - | - | Secondary rear camera |
Depth-sensing camera
Specifications of the depth sensor of the device. Depth sensors measure the distance between the subject and the camera, enabling features such as bokeh in portraits.
| Sensor format | 1/5" | - | - | - |
| Pixel size | 1.75 µm 0.001750 mm | - | - | - |
| Image resolution | 2 MP | - | 0.08 MP | - |
| Aperture - f/2.4 | - | - | - |
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 BSI | CMOS BSI | CMOS |
| Sensor format | 1/5" | - | - | - |
| Pixel size | 1.12 µm 0.001120 mm | - | - | - |
| Aperture | f/2.4 | f/2.2 | f/2.2 | f/2.2 |
| Image resolution | 2560 x 1920 pixels 4.92 MP | 2560 x 1944 pixels 4.98 MP | 2560 x 1944 pixels 4.98 MP | 2560 x 1944 pixels 4.98 MP |
| Video resolution | 1280 x 720 pixels 0.92 MP | 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 | 30 fps |
| Features | Face unlock | Face unlock | Face unlock | Face unlock Face detection |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | 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 | GРS А-GРS GLОΝАSS | 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 802.11а 802.11ас 5GНz | 802.11а 802.11b 802.11g Wi-Fi Disрlаy 802.11а 802.11ас 5GНz | 802.11b 802.11g 802.11а | 802.11а 802.11b 802.11g Wi-Fi Disрlаy 802.11а |
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 | 5.0 |
| Features | A2DP LE | A2DP EDR HID LE | A2DP EDR HID LE | A2DP LE |
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 | Yes | 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 Infrared Tethering VoLTE VoWiFi | Computer sync OTA sync Infrared Tethering VoLTE VoWiFi | 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 AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV LDAC | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ FLAC 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 DivX H.263 H.264 H.265 MKV MP4 VC-1 Xvid | 3GPP AVI DivX H.263 H.264 H.265 MKV MP4 VC-1 Xvid | 3GPP AVI DivX H.263 H.264 H.265 MKV MP4 VC-1 Xvid | 3GPP AVI DivX Flash Video H.263 H.264 H.265 MKV MP4 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 | 4230 mAh | 5000 mAh | 5000 mAh | 5160 mAh |
| Type | Li-Polymer | Li-Ion | Li-Ion | Li-Polymer |
| Charger output power | - | 5 V / 2 A | 5 V / 2 A | 9 V / 2 A |
| Features | Fast charging Non-removable | Fast charging Non-removable | Fast charging Non-removable | Fast charging Non-removable |
| - | - | - | 10W charger in the box |
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) | - | 0.647 W/kg | 0.567 W/kg | - |
| Body SAR (EU) | - | 0.727 W/kg | 0.607 W/kg | - |
| Head SAR (India) | 1.16 W/kg | - | - | - |
| Body SAR (India) | 0.586 W/kg | - | - | - |
| Oppo A12 | Xiaomi Redmi A3 | Xiaomi Redmi A3x | Xiaomi Redmi A3 Pro |