Comparison between:
- Xiaomi Redmi 7A
- Xiaomi Redmi Y3
- Vivo iQOO 3
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Xiaomi Redmi 7A | Xiaomi Redmi Y3 | Vivo iQOO 3 | |
 |  |  | |
| Model alias | M1903C3EI | M1810F6G M1810F6I | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 70.41 mm 7.041 cm 0.231 ft 2.772 in | 75.58 mm 7.558 cm 0.248 ft 2.976 in | 74.88 mm 7.488 cm 0.246 ft 2.948 in |
| Height | 146.3 mm 14.63 cm 0.48 ft 5.76 in | 158.73 mm 15.873 cm 0.521 ft 6.249 in | 158.51 mm 15.851 cm 0.52 ft 6.241 in |
| Thickness | 9.55 mm 0.955 cm 0.031 ft 0.376 in | 8.47 mm 0.847 cm 0.028 ft 0.333 in | 9.1 mm 0.91 cm 0.03 ft 0.358 in |
| Weight | 165 g 0.36 lbs 5.82 oz | 180 g 0.4 lbs 6.35 oz | 214 g 0.47 lbs 7.57 oz |
| Volume | 98.37 cm³ 5.97 in³ | 101.61 cm³ 6.17 in³ | 108.01 cm³ 6.56 in³ |
| Colors | Black Blue | Red Black Blue | Quantum Silver Volcano Orange Tornado Black |
| Body materials | Polycarbonate | Plastic | Aluminium alloy Corning Gorilla Glass 6 |
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 |
| 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) | 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 GSМ 900 МНz GSМ 1900 МНz | 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 | - | - |
| 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 | 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) |
| TD-SCDMA | TD-SCDMA 1900 MHz TD-SCDMA 2000 MHz | - | - |
| LTE | LТЕ-ТDD 1900 МНz (В39) LТЕ-ТDD 2000 МНz (В34) LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2500 МНz (В41) LТЕ-ТDD 2600 МНz (В38) LТЕ 850 МНz LТЕ 900 МНz LТЕ 2100 МНz | LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2500 МНz (В41) LТЕ-ТDD 2600 МНz (В38) LТЕ 850 МНz LТЕ 900 МНz LТЕ 1800 МНz LТЕ 2600 МНz | LТЕ-FDD 700 МНz (В12) LТЕ-FDD 700 МНz (В17) LТЕ-FDD 800 МНz (В20) LТЕ-FDD 850 МНz (В5) LТЕ-FDD 850 МНz (В18) LТЕ-FDD 850 МНz (В19) LТЕ-FDD 850 МНz (В26) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1700 МНz (В4) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 1900 МНz (В2) LТЕ-FDD 1900 МНz (В25) LТЕ-FDD 2100 МНz (В1) LТЕ-FDD 2600 МНz (В7) LТЕ-ТDD 1900 МНz (В39) LТЕ-ТDD 2000 МНz (В34) 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 | UМТS GРRS ЕV-DО |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | МΙUΙ V10.2 (Аndrоid 9.0 Рiе) МΙUΙ V11.0.1 (Аndrоid 10) | МΙUΙ V10 (Аndrоid 9.0 Рiе) | Аndrоid 10 |
| User interface (UI) | - | - | iQOO UI 1.0 |
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 | Quаlсоmm Snарdrаgоn 439 (SDМ439) | Quаlсоmm Snарdrаgоn 632 (SDМ632) | Quаlсоmm Snарdrаgоn 865 (SМ8250) |
| Process technology | 12 nm | 14 nm | 7 nm |
| CPU | 4х 1.95 GНz АRМ Соrtех-А53, 4х 1.45 GНz АRМ Соrtех-А53 | 4х 1.8 GНz АRМ Соrtех-А73, 4х 1.8 GНz АRМ Соrtех-А53 (Κryо 250) | 1х 2.84 GНz АRМ Соrtех-А77, 3х 2.42 GНz АRМ Соrtех-А77, 4х 1.8 GНz АRМ Соrtех-А55 (Κryо 585) |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8.2-A |
| Level 1 cache memory (L1) | 16 KB + 16 KB | 16 KB + 16 KB | 16 KB + 16 KB |
| Level 2 cache memory (L2) | - | - | 1792 KB 1.75 MB |
| Level 3 cache memory (L3) | - | - | 4096 KB 4 MB |
| CPU cores | 8 | 8 | 8 |
| CPU frequency | 1950 MHz | 1800 MHz | 2840 MHz |
| GPU | Qualcomm Adreno 505 | Qualcomm Adreno 506 | Qualcomm Adreno 650 |
| GPU frequency | 650 MHz | 725 MHz | 587 MHz |
| RAM capacity | 2 GB 3 GB | 3 GB 4 GB | 8 GB |
| RAM type | LPDDR3 | LPDDR4 | LPDDR5 |
| RAM channels | Single channel | Single channel | Quad channel |
| RAM frequency | 700 MHz | 1066 MHz | 2883 MHz |
| - | - | VC liquid cooling Ultra Game Mode Multi-Turbo |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB 32 GB | 32 GB 64 GB | 128 GB 256 GB |
| - | 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 | - |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | IPS | IPS | Super AMOLED |
| Diagonal size | 5.45 in 138.43 mm 13.84 cm | 6.26 in 159 mm 15.9 cm | 6.44 in 163.58 mm 16.36 cm |
| Width | 2.67 in 67.87 mm 6.79 cm | 2.99 in 76.03 mm 7.6 cm | 2.64 in 67.13 mm 6.71 cm |
| Height | 4.75 in 120.65 mm 12.07 cm | 5.5 in 139.65 mm 13.96 cm | 5.87 in 149.17 mm 14.92 cm |
| Aspect ratio | 1.778:1 16:9 | 1.837:1 | 2.222:1 |
| Resolution | 1080 x 1920 pixels | 1176 x 2160 pixels | 1080 x 2400 pixels |
| Pixel density | 404 ppi 158 ppcm | 393 ppi 154 ppcm | 409 ppi 160 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 79.75 % | 88.79 % | 84.63 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant |
| 2.5D curved glass screen 1000:1 contrast ratio 70.8% NTSC | Corning Gorilla Glass 5 2.5D curved glass screen LTPS (Low Temperature PolySilicon) 1500:1 contrast ratio 450 cd/m² 84% NTSC | 2.5D curved glass screen Schott Xensation Up HDR10+ 800 cd/m² 100% DCI-P3 180Hz touch response rate |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer | Proximity Light Accelerometer Compass | Proximity Light Accelerometer Compass Gyroscope |
| - | - | In-display 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 model | Sony IMX486 Exmor RS | - | Sony IMX582 Exmor RS |
| Sensor type | CMOS | CMOS | CMOS BSI |
| Sensor format | 1/2.9" | - | 1/2" |
| Pixel size | 1.25 µm 0.001250 mm | 1.25 µm 0.001250 mm | 0.8 µm 0.000800 mm |
| ISO | - | - | 100 - 3200 |
| Aperture | f/2.2 | f/2.2 | f/1.79 |
| Focal length and 35 mm equivalent | - | 3.84 mm | - |
| Flash type | Dual LED | Dual LED | LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4000 x 3000 pixels 12 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 | 60 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Optical 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 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) RAW | Autofocus Continuous shooting Digital zoom Optical zoom Digital image stabilization Optical image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode PDAF Super Night Mode |
| - | 720p @ 120 fps Secondary rear camera - 2 MP | Pixel size - 1.6 μm (4-in-1 pixel binning) Super Night View 2.0 |
Ultra-wide camera
Specifications of the ultra-wide camera of the device. This type of camera captures a wider field of view compared to the main camera.
| Aperture | - | - | f/2.2 |
| Field of view | - | - | 120 ° |
| Image resolution | - | - | 13 MP |
| - | - | Angle of view with wide-angle correction on - 108° |
Telephoto camera
Specifications of the telephoto camera. These cameras are used to capture distant objects by using optical zoom to make them look closer without losing resolution and detail.
| Aperture | - | - | f/2.46 |
| Image resolution | - | - | 13 MP |
| - | - | 20x digital zoom |
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.
| Aperture | - | - | f/2.4 |
| Image resolution | - | - | 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 | - | - | Samsung S5K3P9SP04-FGX9 |
| Sensor type | - | - | ISOCELL |
| Sensor format | - | 1/2.8" | 1/3.1" |
| Pixel size | - | 0.8 µm 0.000800 mm | 1 µm 0.001000 mm |
| Aperture | - | f/2.2 | f/2.45 |
| Focal length and 35 mm equivalent | - | 3.78 mm | - |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 6912 x 4624 pixels 31.96 MP | 5024 x 3192 pixels 16.04 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 | Face unlock |
| - | EIS | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
| - | Smart PA | Hi-Fi Audio Hi-Res Audio 192 kHz / 32-bit AK4377A |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | No |
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 GLОΝАSS |
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 Wi-Fi Disрlаy 802.11а | 802.11b 802.11g Wi-Fi Disрlаy 802.11а 802.11ас 5GНz | 802.11а 802.11b 802.11g Wi-Fi Disрlаy 802.11а 802.11ас 5GНz |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.2 | 4.2 | 5.1 |
| Features | A2DP LE | A2DP LE | A2DP |
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 | USB Type-C |
| Version | 2.0 | 2.0 | 2.0 |
| Features | Charging Host Mass storage On-The-Go | Charging Host 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 |
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 | 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 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 Flash Video H.263 H.264 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 | 4000 mAh | 4000 mAh | 4440 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| 2G talk time | 25 h 1500 min 1 days | - | - |
| 3G talk time | 25 h 1500 min 1 days | - | - |
| Charger output power | 5 V / 2 A | 5 V / 2 A | - |
| Quick charge technology | - | - | Super FlashCharge |
| Features | Non-removable | Non-removable | Fast charging Non-removable |
| - | - | 55W Super FlashCharge |
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) | 0.917 W/kg | 0.247 W/kg | - |
| Body SAR (EU) | 1.476 W/kg | 0.861 W/kg | - |
| Head SAR (USA) | 1.29 W/kg | - | - |
| Body SAR (USA) | 1.39 W/kg | - | - |
| Head SAR (India) | 0.744 W/kg | 1.031 W/kg | - |
| Body SAR (India) | 0.785 W/kg | 0.573 W/kg | - |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | P2i nano-coating | P2i nano-coating M1810F6I - SAR (Specific Absorption Rate) India: head - 1.031 W/kg; body - 0.573 W/kg | - |
| Xiaomi Redmi 7A | Xiaomi Redmi Y3 | Vivo iQOO 3 |
