Comparison between:
- Xiaomi Redmi 9A
- Xiaomi Redmi 9C
- Xiaomi Redmi A2
- Samsung Galaxy A04s
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Xiaomi Redmi 9A | Xiaomi Redmi 9C | Xiaomi Redmi A2 | Samsung Galaxy A04s | |
 Prices |  Prices |  Prices |  | |
| Model alias | M2006C3LG M2006C3LI M2006C3LC M2004C3L | M2006C3MNG M2006C3MG | - | SM-A047F SM-A047F/DS SM-A047F/DSN |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 75.9 mm 7.59 cm 0.249 ft 2.988 in | 75.9 mm 7.59 cm 0.249 ft 2.988 in | 76.75 mm 7.675 cm 0.252 ft 3.022 in | 76.7 mm 7.67 cm 0.252 ft 3.02 in |
| Height | 164.4 mm 16.44 cm 0.539 ft 6.472 in | 164.4 mm 16.44 cm 0.539 ft 6.472 in | 164.9 mm 16.49 cm 0.541 ft 6.492 in | 164.7 mm 16.47 cm 0.54 ft 6.484 in |
| Thickness | 9.1 mm 0.91 cm 0.03 ft 0.358 in | 9.1 mm 0.91 cm 0.03 ft 0.358 in | 9.09 mm 0.909 cm 0.03 ft 0.358 in | 9.1 mm 0.91 cm 0.03 ft 0.358 in |
| Weight | 196 g 0.43 lbs 6.91 oz | 196 g 0.43 lbs 6.91 oz | 192 g 0.42 lbs 6.77 oz | 195 g 0.43 lbs 6.88 oz |
| Volume | 113.55 cm³ 6.9 in³ | 113.55 cm³ 6.9 in³ | 115.04 cm³ 6.99 in³ | 114.96 cm³ 6.98 in³ |
| Colors | Granite Gray Peacook Green Sky Blue | Mint Green Pepper Grey | Light Green Light Blue Black | Black White Green Copper |
| Body materials | Plastic | Plastic | Plastic | 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 |
| 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 | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| 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 | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | LTE-FDD 700 MHz (B28) LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) LTE-FDD 2100 MHz (B1) |
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 GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE EV-DO Rev. A | UMTS EDGE GPRS HSPA+ LTE |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | MIUI 12 (Android 10) | MIUI 12 (Android 10) | Android 12 Go edition | Android 12 |
| User interface (UI) | - | - | - | One UI 4.1 Core |
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 | MediaTek Helio G25 (MT6762G) | MediaTek Helio G35 (MT6765G) | MediaTek Helio G36 | Samsung Exynos 850 (S5E3830) |
| Process technology | 12 nm | 12 nm | 12 nm | 8 nm |
| CPU | 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53 | 4x 2.3 GHz ARM Cortex-A53, 4x 1.8 GHz ARM Cortex-A53 | 4x 2.2 GHz ARM Cortex-A53, 4x 1.8 GHz ARM Cortex-A53 | 8x 2.0 GHz ARM Cortex-A55 |
| CPU bits | 64 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8-A | ARMv8.2-A |
| CPU cores | 8 | 8 | 8 | 8 |
| CPU frequency | 2000 MHz | 2300 MHz | 2200 MHz | 2000 MHz |
| GPU | IMG PowerVR GE8320 | IMG PowerVR GE8320 | IMG PowerVR GE8320 | ARM Mali-G52 MP1 |
| GPU cores | - | - | - | 1 |
| GPU frequency | 650 MHz | 680 MHz | 680 MHz | - |
| RAM capacity | 2 GB | 2 GB 3 GB | 2 GB 3 GB | 3 GB 4 GB |
| RAM type | LPDDR3 | LPDDR4X | LPDDR4X | LPDDR4X |
| RAM channels | Single channel | Double channel | Double channel | Double channel |
| RAM frequency | 933 MHz | 1600 MHz | 1600 MHz | 1866 MHz |
| - | - | Virtual RAM expansion - 2 GB | - |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 32 GB | 32 GB 64 GB | 32 GB | 32 GB 64 GB 128 GB |
| eMMC 5.1 | eMMC 5.1 | eMMC 5.1 | - |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | miniSD microSDHC microSDXC | miniSD 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 | PLS |
| Diagonal size | 6.53 in 165.86 mm 16.59 cm | 6.53 in 165.86 mm 16.59 cm | 6.52 in 165.61 mm 16.56 cm | 6.5 in 165.1 mm 16.51 cm |
| Width | 2.68 in 68.06 mm 6.81 cm | 2.68 in 68.06 mm 6.81 cm | 2.68 in 67.96 mm 6.8 cm | 2.67 in 67.75 mm 6.78 cm |
| Height | 5.95 in 151.25 mm 15.13 cm | 5.95 in 151.25 mm 15.13 cm | 5.95 in 151.02 mm 15.1 cm | 5.93 in 150.56 mm 15.06 cm |
| Aspect ratio | 2.222:1 | 2.222:1 | 2.222:1 | 2.222:1 |
| Resolution | 720 x 1600 pixels | 720 x 1600 pixels | 720 x 1600 pixels | 720 x 1600 pixels |
| Pixel density | 269 ppi 105 ppcm | 269 ppi 105 ppcm | 269 ppi 105 ppcm | 270 ppi 106 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 82.77 % | 82.77 % | 81.36 % | 81.01 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant | Capacitive Scratch resistant | Capacitive Multi-touch |
| 2.5D curved glass screen | 2.5D curved glass screen | 2.5D curved glass screen 70% NTSC 400 cd/m² 1500:1 | Infinity-V Display 90Hz refresh 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 Fingerprint | Accelerometer Virtual Proximity Virtual Light | Proximity Light Accelerometer |
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 type | CMOS | CMOS | CMOS | CMOS |
| Pixel size | 1.12 µm 0.001120 mm | 1.12 µm 0.001120 mm | - | - |
| Aperture | f/1.8 | f/1.8 | f/2 | f/1.8 |
| Flash type | LED | LED | LED | LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP | 3264 x 2448 pixels 7.99 MP | 8190 x 6120 pixels 50.12 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) | 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) | 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 Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode |
| - | Secondary rear camera - 5 MP (macro) Aperture size - f/2.4 (#2) Secondary rear camera - 2 MP (depth-sensing) Aperture size - f/2.4 (#3) | Secondary rear camera - depth sesor | Secondary rear camera - 2 MP (macro) Aperture size - f/2.4 (#2) Third rear camera - 2 MP (depth-sensing) Aperture size - f/2.4 (#3) |
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 |
| Aperture | f/2.4 | f/2.4 | f/2.2 | f/2.2 |
| Focal length and 35 mm equivalent | 27 mm *(35 mm / full frame) | 27 mm *(35 mm / full frame) | - | - |
| Image resolution | 1600 x 1200 pixels 1.92 MP | 1600 x 1200 pixels 1.92 MP | 2560 x 1944 pixels 4.98 MP | 2560 x 1920 pixels 4.92 MP |
| Video resolution | 1280 x 720 pixels 0.92 MP | 1280 x 720 pixels 0.92 MP | 1920 x 1080 pixels 2.07 MP | 1280 x 720 pixels 0.92 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| Features | Face unlock HDR | Face unlock HDR | Face unlock | Face unlock |
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 | GPS A-GPS GLONASS BeiDou Galileo | GPS A-GPS GLONASS BeiDou Galileo | GPS A-GPS GLONASS Beidou | GPS A-GPS GLONASS |
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 802.11n Wi-Fi Hotspot | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz Dual band Wi-Fi Hotspot Wi-Fi Direct | 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 | 5.0 | 5.0 | 5.0 | 5.0 |
| Features | A2DP EDR HID 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 | Micro USB | Micro USB | Micro USB | USB Type-C |
| 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 Tethering NFC VoLTE | Computer sync OTA sync Infrared Tethering VoLTE VoWiFi | Computer sync OTA sync Tethering VoLTE |
| - | Model M2006C3MNG - NFC Model M2006C3MG - no 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 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 LDAC | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ FLAC M4A 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 3GPP2 AVI Flash Video H.263 H.264 H.265 MKV MP4 VC-1 VP8 VP9 WebM WMV WMV7 WMV8 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 | 5000 mAh | 5000 mAh | 5000 mAh | 5000 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Ion | Li-Ion |
| 4G talk time | - | - | 28 h 1680 min 1.2 days | - |
| 4G stand-by time | - | - | 626 h 37560 min 26.1 days | - |
| Charger output power | 5 V / 2 A | 5 V / 2 A | 5 V / 2 A | 5 V / 1.5 A |
| Features | Fast charging Non-removable | Fast charging Non-removable | Fast charging Non-removable | Non-removable |
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) | 0.398 W/kg | 0.37 W/kg | 0.897 W/kg | 0.521 W/kg |
| Body SAR (EU) | 1.186 W/kg | 1.14 W/kg | 0.997 W/kg | 1.227 W/kg |
| Head SAR (USA) | 0.901 W/kg | - | - | - |
| Body SAR (USA) | 0.647 W/kg | - | - | - |
| Head SAR (India) | 0.528 W/kg | 0.729 W/kg | - | 0.783 W/kg |
| Body SAR (India) | 0.791 W/kg | 0.515 W/kg | - | - |
| Xiaomi Redmi 9A | Xiaomi Redmi 9C | Xiaomi Redmi A2 | Samsung Galaxy A04s |