Comparison between:
- LG G2
- Xiaomi Redmi 7A
- Xiaomi Redmi Note 8 Pro
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| LG G2 | Xiaomi Redmi 7A | Xiaomi Redmi Note 8 Pro | |
 Prices |  Prices |  Prices | |
| Model alias | Optimus G2 LG-D802 D802 LG-D802TA D802TA LG-D803 D803 LG-VS980 VS980 LG-LS980 LGLS980 LS980 | - | Redmi Note8 Pro Red Rice Note 8 Pro Red Rice Note8 Pro G7 2015105 M1906G7G M1906G7I M1906G7E M1906G7T |
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 | 76.4 mm 7.64 cm 0.251 ft 3.008 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 | 161.35 mm 16.135 cm 0.529 ft 6.352 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 | 8.79 mm 0.879 cm 0.029 ft 0.346 in |
| Weight | 143 g 0.32 lbs 5.04 oz | 165 g 0.36 lbs 5.82 oz | 199 g 0.44 lbs 7.05 oz |
| Volume | 87.39 cm³ 5.31 in³ | 98.37 cm³ 5.97 in³ | 108.36 cm³ 6.58 in³ |
| Colors | Black White Red Gold | Black Blue | Mineral Grey Pearl White Forest Green |
| Body materials | Polycarbonate | Polycarbonate | Glass Plastic |
| Certification | - | - | IP52 |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Micro-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 | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| 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 1900 MHz TD-SCDMA 2000 MHz |
| UMTS | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz | - | - |
| LTE | LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) | LTE-TDD 1900 MHz (B39) LTE-TDD 2000 MHz (B34) 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-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 1900 MHz (B39) LTE-TDD 2000 MHz (B34) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) |
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 Class 12 GPRS Class 12 HSPA+ LTE Cat 4 EV-DO Rev. A | UMTS EDGE GPRS HSPA+ LTE EV-DO Rev. A TD-SCDMA TD-HSDPA | UMTS EDGE GPRS HSPA+ LTE Cat 12 EV-DO Rev. A TD-SCDMA TD-HSDPA |
| - | - | 3CA 256-QAM 4x4 MIMO |
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 4.2.2 Jelly Bean Android 4.4 KitKat Android 5.0 Lollipop Android 5.1.1 Lollipop | MIUI V10.2 (Android 9.0 Pie) MIUI V11.0.1 (Android 10) | MIUI V10 (Android 9.0 Pie) |
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 | Qualcomm Snapdragon 800 MSM8974AA | Qualcomm Snapdragon 439 | MediaTek Helio G90T (MT6785T) |
| Process technology | 28 nm | 12 nm | 12 nm |
| CPU | Krait 400 | 4x 1.95 GHz ARM Cortex-A53, 4x 1.45 GHz ARM Cortex-A53 | 2x 2.05 GHz Cortex-A76, 6x 2.0 GHz Cortex-A55 |
| CPU bits | 32 bit | 64 bit | 64 bit |
| Instruction set | ARMv7 | ARMv8 | ARMv8.2-A |
| Level 0 cache memory (L0) | 4 KB + 4 KB | - | - |
| Level 1 cache memory (L1) | 16 KB + 16 KB | - | - |
| Level 2 cache memory (L2) | 2048 KB 2 MB | - | - |
| CPU cores | 4 | 8 | 8 |
| CPU frequency | 2260 MHz | 1950 MHz | 2050 MHz |
| GPU | Qualcomm Adreno 330 | Qualcomm Adreno 505 | ARM Mali-G76 3EEMC4 |
| GPU cores | 4 | - | 4 |
| GPU frequency | 450 MHz | - | 800 MHz |
| RAM capacity | 2 GB | 2 GB 3 GB | 6 GB 8 GB |
| RAM type | LPDDR3 | LPDDR3 | LPDDR4X |
| RAM channels | Double channel | Single channel | Double channel |
| RAM frequency | 800 MHz | - | 2133 MHz |
| - | - | MediaTek HyperEngine Mi Turbo Game Turbo 2.0 Liquid cooling system |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB 32 GB | 16 GB 32 GB | 64 GB 128 GB |
| - | - | 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 | IPS |
| Diagonal size | 5.2 in 132.08 mm 13.21 cm | 5.45 in 138.43 mm 13.84 cm | 6.53 in 165.86 mm 16.59 cm |
| Width | 2.55 in 64.75 mm 6.48 cm | 2.44 in 61.91 mm 6.19 cm | 2.74 in 69.51 mm 6.95 cm |
| Height | 4.53 in 115.12 mm 11.51 cm | 4.87 in 123.82 mm 12.38 cm | 5.93 in 150.6 mm 15.06 cm |
| Aspect ratio | 1.778:1 16:9 | 2:1 2:1 (18:9) | 2.167:1 |
| Resolution | 1080 x 1920 pixels | 720 x 1440 pixels | 1080 x 2340 pixels |
| Pixel density | 424 ppi 166 ppcm | 295 ppi 115 ppcm | 395 ppi 155 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 76.16 % | 74.65 % | 85.19 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive 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 5 Oleophobic coating TÜV Rheinland certification for low blue light emissions Chip-on-foil (COF) IC packaging technology 1500:1 contrast ratio 500 cd/m² typical brightness 420 cd/m² minimum brightness 84% NTSC HDR |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope | Proximity Light Accelerometer Compass | Proximity Light Accelerometer Compass Gyroscope 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 | Sony IMX135 Exmor RS | Sony IMX486 Exmor RS | Samsung S5KGW1 |
| Sensor type | CMOS | CMOS | ISOCELL |
| Sensor size | 4.69 x 3.52 mm 0.23 in | - | - |
| Sensor format | - | 1/2.9" | 1/1.72" |
| Pixel size | 1.127 µm 0.001127 mm | 1.25 µm 0.001250 mm | 0.8 µm 0.000800 mm |
| Crop factor | 7.38 | - | - |
| ISO | 100 - 800 | - | - |
| Aperture | f/2.4 | f/2.2 | f/1.89 |
| Focal length and 35 mm equivalent | 4 mm 29.51 mm *(35 mm / full frame) | - | - |
| Field of view | - | - | 79 ° |
| Number of lenses | - | - | 6 |
| Flash type | LED | Dual LED | Dual LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP | 9248 x 6936 pixels 64.14 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 | 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 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) |
| 1920x1080 @ 60 fps Sapphire Crystal Glass | - | Pixel size - 1.6 μm (4-in-1 pixel binning) Sensor type - ISOCELL PLUS Super Phase Detection 1080p @ 120 fps 720p @ 960 fps Secondary rear camera - 8 MP (ultra-wide) Sensor size - 1/4" (#2) Pixel size - 1.12 μm (#2) Aperture size - f/2.2 (#2) Angle of view - 120° (#2) Focal length (35 mm equivalent) - 13 mm (#2) Third rear camera - 2MP (depth-sensing) Sensor size - 1/5" (#3) Pixel size - 1.75 μm (#3) Aperture size - f/2.4 (#3) Fourth rear camera - 2MP (macro) Sensor size - 1/5" (#4) Pixel size - 1.75 μm (#4) Aperture size - f/2.4 (#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 model | - | - | Samsung S5K3T1 |
| Sensor type | - | - | ISOCELL |
| Sensor format | - | - | 1/3.1" |
| Pixel size | - | - | 0.9 µm 0.000900 mm |
| Aperture | - | - | f/2 |
| Image resolution | 1920 x 1080 pixels 2.07 MP | 2592 x 1944 pixels 5.04 MP | 5184 x 3880 pixels 20.11 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 |
| - | - | Pixel size - 1.8 μm (4-in-1 pixel binning) HDR |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
| 192 kHz / 24-bit | - | Smart PA 10V Boost 1217 super-linear speaker Active noise cancellation with a dedicated microphone |
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 | GPS A-GPS GLONASS | GPS A-GPS GLONASS BeiDou | GPS A-GPS GLONASS BeiDou |
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 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac 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 | 4.0 | 4.2 | 5.0 |
| Features | A2DP AVRCP FTP HFP HID LE OPP PBAP | A2DP LE | A2DP EDR HID LE |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | Micro USB | USB Type-C |
| 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 OTA sync Infrared Tethering NFC VoLTE ViLTE |
| - | - | NXP-SN100T chip for NFC |
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 LDAC |
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 H.263 H.264 H.265 MKV MP4 VC-1 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 | 4500 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 | 5 V / 3 A 9 V / 2 A 12 V / 1.5 A |
| Quick charge technology | - | - | MediaTek Pump Express 4.0, Qualcomm Quick Charge 3.0, Quick Charge 4+, USB Power Delivery 3.0 |
| 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) | 0.41 W/kg | 0.557 W/kg | 0.997 W/kg |
| Body SAR (EU) | 0.47 W/kg | 1.166 W/kg | 1.446 W/kg |
| Head SAR (USA) | 0.5 W/kg | 1 W/kg | 1.15 W/kg |
| Body SAR (USA) | 0.69 W/kg | 1.12 W/kg | 1.18 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 | Anti-splash coating |
| LG G2 | Xiaomi Redmi 7A | Xiaomi Redmi Note 8 Pro |