Comparison between:
- Xiaomi Redmi 7A
- Samsung Galaxy S20 5G Exynos
- Samsung Galaxy S20 FE 5G SD865
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Xiaomi Redmi 7A | Samsung Galaxy S20 5G Exynos | Samsung Galaxy S20 FE 5G SD865 | |
 |  |  | |
| Model alias | M1903C3EI | SM-G981 SM-G981B/DS SM-G981N | Galaxy S20 Fan Edition 5G SD865 Galaxy S20 Lite SD865 SM-G781B SM-G781B/DS SM-G781U |
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 | 69.1 mm 6.91 cm 0.227 ft 2.72 in | 74.5 mm 7.45 cm 0.244 ft 2.933 in |
| Height | 146.3 mm 14.63 cm 0.48 ft 5.76 in | 151.7 mm 15.17 cm 0.498 ft 5.972 in | 159.8 mm 15.98 cm 0.524 ft 6.291 in |
| Thickness | 9.55 mm 0.955 cm 0.031 ft 0.376 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in | 8.4 mm 0.84 cm 0.028 ft 0.331 in |
| Weight | 165 g 0.36 lbs 5.82 oz | 163 g 0.36 lbs 5.75 oz | 190 g 0.42 lbs 6.7 oz |
| Volume | 98.37 cm³ 5.97 in³ | 82.81 cm³ 5.03 in³ | 100 cm³ 6.07 in³ |
| Colors | Black Blue | Cosmic Grey Cloud Blue Cloud Pink | Cloud Red Cloud Orange Cloud Lavender Cloud Mint Cloud Navy Cloud White |
| Body materials | Polycarbonate | Glass Aluminium alloy | Plastic Aluminium alloy |
| Certification | - | IP68 | IP68 |
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 eSIM | Nano-SIM eSIM |
| Number of SIM cards | 2 | 1 | 1 |
| Features | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM optional (A variant of the model with two SIM card slots is available) | Dual SIM optional (A variant of the model with two SIM card slots is available) |
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 (В5) GSМ 900 МНz (В8) GSМ 1900 МНz (В2) | 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 | - | - |
| TD-SCDMA | TD-SCDMA 1900 MHz TD-SCDMA 2000 MHz | - | - |
| UMTS | - | UМТS 900 МНz (В8) UМТS 1700 МНz (В4) UМТS 1900 МНz (В2) UМТS 2100 МНz (В1) | UМТS 900 МНz (В8) UМТS 1700 МНz (В4) UМТS 1900 МНz (В2) UМТS 2100 МНz (В1) |
| 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-FDD 700 МНz (В12) LТЕ-FDD 700 МНz (В13) LТЕ-FDD 700 МНz (В17) LТЕ-FDD 700 МНz (В28) LТЕ-FDD 800 МНz (В20) LТЕ-FDD 850 МНz (В5) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1700 МНz (В4) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 1900 МНz (В2) 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) | LТЕ-FDD 700 МНz (В12) LТЕ-FDD 700 МНz (В13) LТЕ-FDD 700 МНz (В17) LТЕ-FDD 700 МНz (В28) LТЕ-FDD 800 МНz (В20) LТЕ-FDD 850 МНz (В5) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1700 МНz (В4) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 1900 МНz (В2) 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) |
| 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-FDD 2600 MHz (n7) 5G-TDD 3500 MHz (n78) 5G-TDD 3700 MHz (n77) | 5G-FDD 1800 MHz (n3) 5G-FDD 2100 MHz (n1) 5G-TDD 2500 MHz (n41) 5G-TDD 3500 MHz (n78) 5G-TDD 3700 MHz (n77) 5G-TDD 4700 MHz (n79) |
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 20 | UМТS GРRS LТЕ Саt 19 |
| - | Exynos Modem 5123 Enhanced 4x4 MIMO Up to 7CA LAA (US only) | Enhanced 4x4 MIMO Up to 5CA LAA (US only) |
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) | Аndrоid 10 | Аndrоid 10 |
| User interface (UI) | - | One UI 2.0 | One UI 2.0 |
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) | Sаmsung Ехynоs 990 (S5Е9830) | Quаlсоmm Snарdrаgоn 865 (SМ8250) |
| Process technology | 12 nm | 7 nm | 7 nm |
| CPU | 4х 1.95 GНz АRМ Соrtех-А53, 4х 1.45 GНz АRМ Соrtех-А53 | 2х 2.73 GНz Ехynоs М5 Liоn, 2х 2.5 GНz АRМ Соrtех-А76, 4х 2.0 GНz АRМ Соrtех-А55 | 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 | ARMv8.2-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 | 2700 MHz | 2840 MHz |
| GPU | Qualcomm Adreno 505 | ARM Mali-G77 MP11 | Qualcomm Adreno 650 |
| GPU cores | - | 11 | - |
| GPU frequency | 650 MHz | 800 MHz | 587 MHz |
| RAM capacity | 2 GB 3 GB | 8 GB | 6 GB 8 GB |
| RAM type | LPDDR3 | LPDDR5 | LPDDR5 |
| RAM channels | Single channel | Quad channel | Quad channel |
| RAM frequency | 700 MHz | 2650 MHz | 2650 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 16 GB 32 GB | 128 GB | 128 GB 256 GB |
| - | UFS 2.0 | UFS 3.1 |
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 | IPS | Dynamic AMOLED 2X | Super AMOLED |
| Diagonal size | 5.45 in 138.43 mm 13.84 cm | 6.2 in 157.48 mm 15.75 cm | 6.5 in 165.1 mm 16.51 cm |
| Width | 2.67 in 67.87 mm 6.79 cm | 2.77 in 70.43 mm 7.04 cm | 2.91 in 73.83 mm 7.38 cm |
| Height | 4.75 in 120.65 mm 12.07 cm | 5.55 in 140.85 mm 14.09 cm | 5.81 in 147.67 mm 14.77 cm |
| Aspect ratio | 1.778:1 16:9 | 2:1 2:1 (18:9) | 2:1 2:1 (18:9) |
| Resolution | 1080 x 1920 pixels | 1080 x 2160 pixels | 1080 x 2160 pixels |
| Pixel density | 404 ppi 158 ppcm | 390 ppi 153 ppcm | 372 ppi 146 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 79.75 % | 94.94 % | 91.88 % |
| 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 6 Infinity-O Display Always-On Display 120Hz refresh rate HDR10+ | 2.5D curved glass screen Corning Gorilla Glass 3 Infinity-O Display Always-On Display 120Hz refresh rate HDR10+ |
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 Gyroscope Barometer Geomagnetic Fingerprint | Proximity Light Accelerometer Compass Gyroscope Barometer Geomagnetic Fingerprint |
| - | In-display ultrasonic fingerprint sensor | In-display optical 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 | Samsung S5K2LD | Sony IMX555 |
| Sensor type | CMOS | ISOCELL | CMOS |
| Sensor size | - | 6.45 x 8.46 mm 0.42 in | 6.45 x 8.46 mm 0.42 in |
| Sensor format | 1/2.9" | 1/1.76" | 1/1.76" |
| Pixel size | 1.25 µm 0.001250 mm | 1.8 µm 0.001800 mm | 1.8 µm 0.001800 mm |
| Crop factor | - | 4.07 | 4.07 |
| Aperture | f/2.2 | f/1.8 | f/1.8 |
| Focal length and 35 mm equivalent | - | 4.32 mm 17.57 mm *(35 mm / full frame) | 4.32 mm 17.57 mm *(35 mm / full frame) |
| Field of view | - | 79 ° | 79 ° |
| Flash type | Dual LED | Dual LED | Dual LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4032 x 3024 pixels 12.19 MP | 4032 x 3024 pixels 12.19 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 7680 x 4320 pixels 33.18 MP | 7680 x 4320 pixels 33.18 MP |
| Video FPS | 30 fps | 24 fps | 24 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 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 Phase detection autofocus (PDAF) | 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 Phase detection autofocus (PDAF) |
| - | Phase detection with Dual Pixel Object tracking AF Dual OIS 2160p @ 60 fps 1080p @ 240 fps 720p @ 960 fps HDR10+ video recording | Phase detection with Dual Pixel Object tracking AF Dual OIS 2160p @ 60 fps 1080p @ 240 fps 720p @ 960 fps HDR10+ video recording |
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.
| Sensor model | - | Samsung S5K2LA | Samsung S5K3L6 |
| Sensor format | - | 1/2.55" | 1/3.1" |
| Pixel size | - | 1.4 µm 0.001400 mm | 1.12 µm 0.001120 mm |
| Aperture | - | f/2.2 | f/2.2 |
| Focal length equivalent (35 mm) | - | 13 mm *(35 mm / full frame) | 15 mm *(35 mm / full frame) |
| Field of view | - | 120 ° | 123 ° |
| Image resolution | - | 12 MP | 12 MP |
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.
| Sensor model | - | Samsung S5KGW2 | SK Hynix HI-847 |
| Sensor format | - | 1/1.72" | 1/4.5" |
| Pixel size | - | - | 1 µm 0.001000 mm |
| Aperture | - | f/2 | f/2.4 |
| Focal length equivalent (35 mm) | - | 29 mm *(35 mm / full frame) | 72 mm *(35 mm / full frame) |
| Field of view | - | 76 ° | 32 ° |
| Optical zoom | - | 3 x | 3 x |
| Image resolution | - | 64 MP | 8 MP |
| Features | - | Phase detection autofocus (PDAF) Optical image stabilization | Optical image stabilization |
| - | - | 30x Super Resolution zoom Tracking AF |
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 | - | Sony IMX374 | Sony IMX616 |
| Sensor type | - | CMOS | CMOS |
| Sensor format | - | 1/3.33" | 1/2.74" |
| Pixel size | - | - | 0.8 µm 0.000800 mm |
| Aperture | - | f/2.2 | f/2 |
| Focal length and 35 mm equivalent | - | 26 mm *(35 mm / full frame) | 26 mm *(35 mm / full frame) |
| Field of view | - | 80 ° | - |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 10 MP | 6816 x 4743 pixels 32.33 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 3840 x 2160 pixels 8.29 MP | 3840 x 2160 pixels 8.29 MP |
| Video FPS | 30 fps | 60 fps | 30 fps |
| Features | Face unlock | Phase detection autofocus (PDAF) HDR Autofocus | HDR Face unlock Autofocus |
| - | Phase detection with Dual Pixel Auto HDR | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece Stereo speakers | Loudspeaker Earpiece Stereo speakers |
| - | 384 kHz / 32-bit AKG audio Dolby Atmos | 384 kHz / 32-bit AKG audio Dolby Atmos |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GРS А-GРS | 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 | 802.11b 802.11g Wi-Fi Disрlаy 802.11а | 802.11а 802.11b 802.11g Wi-Fi 6 (802.11ах) Wi-Fi Disрlаy 802.11а 802.11аd | 802.11а 802.11b 802.11g Wi-Fi 6 (802.11ах) Wi-Fi Disрlаy 802.11а |
| - | HE80 MiMO 1024-QAM | HE80 MiMO 1024-QAM |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.2 | 5.0 | 5.0 |
| Features | A2DP LE | A2DP AVRCP DIP HFP HID HSP LE MAP OPP PAN PBAP | A2DP AVRCP DIP HFP HID HSP LE MAP OPP PAN PBAP |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | Micro USB | Micro USB |
| Version | 2.0 | 3.2 | 3.2 |
| Features | Charging Host 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 | No | No |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Tethering NFC ANT+ | Computer sync OTA sync Tethering NFC MST |
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 AMR FLAC M4A MIDI MP3 OGG WMA WAV 3GA OGA AWB MID XMF MXMF IMY RTTTL RTX OTA APE DSF DFF | AAC AMR FLAC M4A MIDI MP3 OGG WMA WAV 3GA OGA AWB MID XMF MXMF IMY RTTTL RTX OTA APE DSF DFF |
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 | AVI MKV MP4 WMV M4V 3GP 3G2 ASF FLV WEBM | AVI MKV MP4 WMV M4V 3GP 3G2 ASF FLV WEBM |
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 | 4500 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 / 5 A | 5 V / 3 A |
| Features | Non-removable | Wireless charging Fast charging Non-removable | Wireless charging Fast charging Non-removable |
| - | Qi/PMA wireless charging - 15 W Wireless reverse charging - 9 W Fast Wireless Charging 2.0 USB Power Delivery 3.0 | Wireless reverse charging - 4.5W Fast Wireless Charging 2.0 USB Power Delivery 3.0 |
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 | 0.132 W/kg | 0.253 W/kg |
| Body SAR (EU) | 1.476 W/kg | 1.255 W/kg | 1.085 W/kg |
| Head SAR (USA) | 1.29 W/kg | - | 0.39 W/kg |
| Body SAR (USA) | 1.39 W/kg | - | 0.59 W/kg |
| Simultaneous Body SAR (USA) | - | - | 1.59 W/kg |
| Head SAR (India) | 0.744 W/kg | - | - |
| Body SAR (India) | 0.785 W/kg | - | - |
| Wi-Fi Hotspot SAR | - | - | 1.01 W/kg |
| Simultaneous Wi-Fi SAR | - | - | 1.59 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 | Samsung DeX | - |
| Xiaomi Redmi 7A | Samsung Galaxy S20 5G Exynos | Samsung Galaxy S20 FE 5G SD865 |