Comparison between:
- LG G2
- Xiaomi Redmi 7A
- Oppo A33
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| LG G2 | Xiaomi Redmi 7A | Oppo A33 | |
 |  |  | |
| Model alias | Optimus G2 LG-D802 D802 LG-D802TA D802TA LG-D803 D803 LG-VS980 VS980 LG-LS980 LGLS980 LS980 | M1903C3EI | CPH2127 |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 70.9 mm 7.09 cm 0.233 ft 2.791 in | 70.41 mm 7.041 cm 0.231 ft 2.772 in | 75.1 mm 7.51 cm 0.246 ft 2.957 in |
| Height | 138.5 mm 13.85 cm 0.454 ft 5.453 in | 146.3 mm 14.63 cm 0.48 ft 5.76 in | 163.9 mm 16.39 cm 0.538 ft 6.453 in |
| Thickness | 8.9 mm 0.89 cm 0.029 ft 0.35 in | 9.55 mm 0.955 cm 0.031 ft 0.376 in | 8.4 mm 0.84 cm 0.028 ft 0.331 in |
| Weight | 143 g 0.32 lbs 5.04 oz | 165 g 0.36 lbs 5.82 oz | 186 g 0.41 lbs 6.56 oz |
| Volume | 87.39 cm³ 5.31 in³ | 98.37 cm³ 5.97 in³ | 103.39 cm³ 6.28 in³ |
| Colors | Black White Red Gold | Black Blue | Fairy White Electric Black Fancy Blue |
| Body materials | Polycarbonate | 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 | Nano-SIM Nano-SIM / microSD |
| Number of SIM cards | 1 | 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) |
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 CDMA 1900 MHz | CDMA 800 MHz | CDMA 800 MHz (BC0) |
| CDMA2000 | 1xEV-DO Rev. A | - | - |
| W-CDMA | - | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1) |
| TD-SCDMA | - | TD-SCDMA 1900 MHz TD-SCDMA 2000 MHz | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz |
| UMTS | UМТS 900 МНz UМТS 1900 МНz UМТS 2100 МНz | - | - |
| LTE | LТЕ 850 МНz LТЕ 900 МНz LТЕ 1800 МНz LТЕ 2100 МНz LТЕ-ТDD 2300 МНz (В40) | 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-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 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 Сlаss 12 LТЕ Саt 4 | UМТS GРRS LТЕ | ЕDGЕ НSРА+ ТD-SСDМА |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Аndrоid 4.2.2 Jеlly Веаn Аndrоid 4.4 ΚitΚаt Аndrоid 5.0 Lоlliрор Аndrоid 5.1.1 Lоlliрор | МΙUΙ V10.2 (Аndrоid 9.0 Рiе) МΙUΙ V11.0.1 (Аndrоid 10) | СоlоrОS 7.2 (Аndrоid 10) |
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 800 (МSМ8974АА) | Quаlсоmm Snарdrаgоn 439 (SDМ439) | Quаlсоmm Snарdrаgоn 460 (SМ4250-АА) |
| Process technology | 28 nm | 12 nm | 11 nm |
| CPU | 4х 2.26 GНz Κrаit 400 | 4х 1.95 GНz АRМ Соrtех-А53, 4х 1.45 GНz АRМ Соrtех-А53 | 4х 1.8 GНz АRМ Соrtех-А73, 4х 1.6 GНz АRМ Соrtех-А53 (Κryо 240) |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8 | ARMv8-A | ARMv8-A |
| Level 0 cache memory (L0) | 4 KB + 4 KB | - | - |
| Level 1 cache memory (L1) | 32 KB + 32 KB | 16 KB + 16 KB | 16 KB + 16 KB |
| Level 2 cache memory (L2) | 2048 KB 2 MB | - | - |
| CPU cores | 4 | 8 | 8 |
| CPU frequency | 2260 MHz | 1950 MHz | 1800 MHz |
| GPU | Qualcomm Adreno 330 | Qualcomm Adreno 505 | Qualcomm Adreno 610 |
| GPU cores | 4 | - | - |
| GPU frequency | 450 MHz | 650 MHz | 600 MHz |
| RAM capacity | 2 GB | 2 GB 3 GB | 4 GB 8 GB |
| RAM type | LPDDR4 | LPDDR3 | LPDDR4X |
| RAM channels | Double channel | Single channel | Double channel |
| RAM frequency | 933 MHz | 700 MHz | 1766 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB 32 GB | 16 GB 32 GB | 128 GB |
| UFS 2.1 | - | 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 |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | IPS | IPS | A-Si IPS |
| Diagonal size | 5.2 in 132.08 mm 13.21 cm | 5.45 in 138.43 mm 13.84 cm | 6.5 in 165.1 mm 16.51 cm |
| Width | 2.23 in 56.54 mm 5.65 cm | 2.67 in 67.87 mm 6.79 cm | 2.91 in 73.83 mm 7.38 cm |
| Height | 4.7 in 119.37 mm 11.94 cm | 4.75 in 120.65 mm 12.07 cm | 5.81 in 147.67 mm 14.77 cm |
| Aspect ratio | 2.111:1 | 1.778:1 16:9 | 2:1 2:1 (18:9) |
| Resolution | 720 x 1520 pixels | 1080 x 1920 pixels | 1080 x 2160 pixels |
| Pixel density | 323 ppi 126 ppcm | 404 ppi 158 ppcm | 372 ppi 146 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 68.95 % | 79.75 % | 88.87 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant |
| Corning Gorilla Glass 2 | 2.5D curved glass screen 1000:1 contrast ratio 70.8% NTSC | 2.5D curved glass screen Corning Gorilla Glass 3 90 Hz refresh rate 120 Hz touch sampling rate 480 cd/m² 1500:1 70% sRGB |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass | Proximity Light Accelerometer | Proximity Light Accelerometer |
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 IMX135 Exmor RS | Sony IMX486 Exmor RS | - |
| Sensor type | CMOS | CMOS | - |
| Sensor size | 4.69 x 3.52 mm 0.23 in | - | - |
| Sensor format | - | 1/2.9" | 1/3.06" |
| Pixel size | 1.127 µm 0.001127 mm | 1.25 µm 0.001250 mm | 1.12 µm 0.001120 mm |
| Crop factor | 7.38 | - | - |
| ISO | 100 - 800 | - | - |
| Aperture | f/2.4 | f/2.2 | f/2.2 |
| Focal length and 35 mm equivalent | 4 mm 29.51 mm *(35 mm / full frame) | - | 25 mm *(35 mm / full frame) |
| Flash type | LED | Dual LED | LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 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 | 60 fps | 30 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Optical image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | 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 Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode Phase detection autofocus (PDAF) |
| 1920x1080 @ 60 fps Sapphire Crystal Glass | - | - |
Macro camera
Specifications of the macro camera of the device. This type of camera in smartphones is used to snap close-up photos of tiny objects.
| Aperture | - | - | f/2.4 |
| Image resolution | - | - | 2 MP |
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 format | - | - | 1/3.06" |
| Pixel size | - | - | 1 µm 0.001000 mm |
| Aperture | - | - | f/2 |
| Image resolution | 1920 x 1080 pixels 2.07 MP | 2592 x 1944 pixels 5.04 MP | 4880 x 3275 pixels 15.98 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 | HDR 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 Stereo speakers |
| 192 kHz / 24-bit | - | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes |
| RDS Not available in VS980 | - | - |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | 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 | 802.11b 802.11g Wi-Fi Disрlаy 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 | 4.1 | 4.2 | 5.0 |
| Features | A2DP AVRCP FTP HFP HID LE OPP PBAP | A2DP 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 | Micro USB | Micro USB |
| Version | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage On-The-Go | Charging Host Mass storage On-The-Go | Charging Mass storage On-The-Go |
HDMI
The High-Definition Multimedia Interface (HDMI) is considered to be the digital alternative of the analog audio/video interface standards.
| HDMI | Micro USB to HDMI MHL adapter | - | - |
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 Infrared Tethering DLNA NFC | Computer sync OTA sync Tethering VoLTE | Computer 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 | 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 | AC3 eAAC+ FLAC MP3 WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB aptX aptX HD 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 | DivX H.263 H.264 MP4 MPEG-4 WMV 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 | 3000 mAh | 4000 mAh | 5000 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Ion |
| 2G talk time | 16 h 30 min 16.5 h 990 min 0.7 days | 25 h 1500 min 1 days | - |
| 2G stand-by time | 790 h 47400 min 32.9 days | - | - |
| 3G talk time | 17 h 30 min 17.5 h 1050 min 0.7 days | 25 h 1500 min 1 days | - |
| 3G stand-by time | 900 h 54000 min 37.5 days | - | - |
| Charger output power | - | 5 V / 2 A | 9 V / 2 A |
| Features | Non-removable | Non-removable | Fast charging Non-removable |
| SiO+ | - | - |
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) | 0.75 W/kg | 0.917 W/kg | - |
| Body SAR (EU) | 0.78 W/kg | 1.476 W/kg | - |
| Head SAR (USA) | 0.79 W/kg | 1.29 W/kg | - |
| Body SAR (USA) | 0.96 W/kg | 1.39 W/kg | - |
| Head SAR (India) | - | 0.744 W/kg | 0.77 W/kg |
| Body SAR (India) | - | 0.785 W/kg | 0.97 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 | - |
| LG G2 | Xiaomi Redmi 7A | Oppo A33 |