Comparison between:
- Xiaomi Mi A2
- Samsung Galaxy A41
- Samsung Galaxy A40
- Xiaomi Mi A2 Lite
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Xiaomi Mi A2 | Samsung Galaxy A41 | Samsung Galaxy A40 | Xiaomi Mi A2 Lite | |
 Prices |  Prices |  Prices |  Prices | |
| Model alias | - | SC-A415F | SM-A405FD A405FD SM-A405FN A405FN | Mi A2Lite |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 75.4 mm 7.54 cm 0.247 ft 2.969 in | 69.8 mm 6.98 cm 0.229 ft 2.748 in | 69.2 mm 6.92 cm 0.227 ft 2.724 in | 71.68 mm 7.168 cm 0.235 ft 2.822 in |
| Height | 158.7 mm 15.87 cm 0.521 ft 6.248 in | 149.8 mm 14.98 cm 0.491 ft 5.898 in | 144.4 mm 14.44 cm 0.474 ft 5.685 in | 149.33 mm 14.933 cm 0.49 ft 5.879 in |
| Thickness | 7.3 mm 0.73 cm 0.024 ft 0.287 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in | 7.9 mm 0.79 cm 0.026 ft 0.311 in | 8.75 mm 0.875 cm 0.029 ft 0.344 in |
| Weight | 168 g 0.37 lbs 5.93 oz | 152 g 0.34 lbs 5.36 oz | 140 g 0.31 lbs 4.94 oz | 178 g 0.39 lbs 6.28 oz |
| Volume | 87.35 cm³ 5.3 in³ | 82.6 cm³ 5.02 in³ | 78.94 cm³ 4.79 in³ | 93.66 cm³ 5.69 in³ |
| Colors | Black Blue Gold | Prism Crush Black Prism Crush Blue Prism Crush White Prism Crush Red | Black Blue White Coral | Black |
| Body materials | Aluminium alloy | Plastic | Plastic | Metal Polycarbonate |
| Certification | - | IP65 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 | 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 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) | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| UMTS | UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 800 MHz (B19) UMTS 2100 MHz (B1) UMTS 1800 MHz (B9) | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz |
| LTE | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2600 MHz (B38) | LTE-FDD 700 MHz (B28) LTE-FDD 850 MHz (B19) LTE-FDD 2100 MHz (B1) LTE-FDD 1800 MHz (B9) LTE-FDD 1500 MHz (B21) | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2600 MHz (B38) | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1700/2100 MHz LTE 1800 MHz LTE 1900 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 1900 MHz (B39) 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 GPRS HSPA+ LTE Cat 12 | UMTS EDGE HSPA+ LTE Cat 6 | UMTS EDGE HSPA+ LTE Cat 12 | UMTS EDGE GPRS HSPA+ LTE Cat 6 |
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 8.1 Oreo Android 9.0 Pie | Android 10 | Android 9.0 Pie | Android 8.1 Oreo Android 9.0 Pie |
| User interface (UI) | - | One UI 2.0 | One | - |
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 660 MSM8976 Plus | MediaTek Helio P65 (MT6768) | Samsung Exynos 7 Octa 7904 | Qualcomm Snapdragon 625 MSM8953 |
| Process technology | 14 nm | 12 nm | 14 nm | 14 nm |
| CPU | 4x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260 | 2x 2.0 GHz ARM Cortex-A75, 6x 1.95 GHz ARM Cortex-A55 | 2x 1.8 GHz ARM Cortex-A73, 6x 1.6 GHz ARM Cortex-A53 | ARM Cortex-A53 |
| CPU bits | 64 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8 | ARMv8-A | ARMv8-A | ARMv8 |
| CPU cores | 8 | 8 | 8 | 8 |
| CPU frequency | 2200 MHz | 2000 MHz | 1800 MHz | 2000 MHz |
| GPU | Qualcomm Adreno 512 | ARM Mali-G52 MP2 | ARM Mali-G71 MP2 | Qualcomm Adreno 506 |
| GPU cores | - | 2 | 2 | - |
| GPU frequency | 650 MHz | 820 MHz | - | 650 MHz |
| RAM capacity | 4 GB 6 GB | 4 GB | 4 GB | 3 GB 4 GB |
| RAM type | LPDDR4X | LPDDR4X | LPDDR4X | LPDDR3 |
| RAM channels | Double channel | Double channel | Double channel | Single channel |
| RAM frequency | 1866 MHz | - | - | 933 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 32 GB 64 GB 128 GB | 64 GB | 64 GB | 32 GB 64 GB |
| 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 | 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 | Super AMOLED | Super AMOLED | IPS |
| Diagonal size | 5.99 in 152.15 mm 15.21 cm | 6.1 in 154.94 mm 15.49 cm | 5.9 in 149.86 mm 14.99 cm | 5.84 in 148.34 mm 14.83 cm |
| Width | 2.68 in 68.04 mm 6.8 cm | 2.56 in 64.93 mm 6.49 cm | 2.47 in 62.8 mm 6.28 cm | 2.5 in 63.5 mm 6.35 cm |
| Height | 5.36 in 136.08 mm 13.61 cm | 5.54 in 140.68 mm 14.07 cm | 5.36 in 136.07 mm 13.61 cm | 5.28 in 134.06 mm 13.41 cm |
| Aspect ratio | 2:1 2:1 (18:9) | 2.167:1 | 2.167:1 | 2.111:1 |
| Resolution | 1080 x 2160 pixels | 1080 x 2340 pixels | 1080 x 2340 pixels | 1080 x 2280 pixels |
| Pixel density | 403 ppi 158 ppcm | 422 ppi 165 ppcm | 437 ppi 171 ppcm | 432 ppi 169 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 77.63 % | 87.64 % | 85.79 % | 79.79 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant |
| Corning Gorilla Glass 5 2.5D curved glass screen LTPS (Low Temperature PolySilicon) 1500:1 contrast ratio 500 cd/m² 85% NTSC | Infinity-U Display Always-On Display HDR10 | 370 cd/m² Always-On Display HDR10 | 2.5D curved glass screen 1500:1 contrast ratio 500 cd/m² 84% NTSC |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Barometer Fingerprint Hall | Proximity Light Accelerometer Compass Gyroscope Fingerprint Hall | Proximity Light Accelerometer Compass Gyroscope Fingerprint Hall | Proximity Light Accelerometer Compass Gyroscope Fingerprint |
| Fingerprint sensor model - Fingerprint Cards FPC1028 | In-display fingerprint sensor | - | Fingerprint sensor model - Fingerprint Cards FPC1028 |
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 IMX486 Exmor RS | - | - | Sony IMX486 Exmor RS |
| Sensor type | CMOS | CMOS | CMOS | CMOS |
| Sensor format | 1/2.9" | - | - | 1/2.9" |
| Pixel size | 1.25 µm 0.001250 mm | - | - | 1.25 µm 0.001250 mm |
| Aperture | f/1.75 | f/2 | f/1.7 | f/2.2 |
| Focal length and 35 mm equivalent | 4.07 mm | 3.92 mm 26 mm *(35 mm / full frame) | 3.92 mm 26 mm *(35 mm / full frame) | - |
| Number of lenses | - | - | - | 5 |
| Flash type | Dual LED | LED | LED | LED |
| Image resolution | 4000 x 3000 pixels 12 MP | 8000 x 6000 pixels 48 MP | 4608 x 3456 pixels 15.93 MP | 4000 x 3000 pixels 12 MP |
| Video resolution | 3840 x 2160 pixels 8.29 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 Continuous shooting Digital zoom 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 Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode | 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) |
| 720p @ 120 fps Secondary rear camera - 20 MP Sensor model - Sony IMX376 Exmor RS (#2) Sensor type - CMOS BSI (#2) Sensor size - 1/2.78" (#2) Pixel size - 2.0 μm (4-in-1 pixel binning) (#2) Aperture size - f/1.75 (#2) | Secondary rear camera - 5 MP (depth-sensing) Aperture size - f/2.4 (#2) Third rear camera - 8 MP (ultra-wide-angle) Aperture size - f/2.2 (#3) | Secondary rear camera - 5 MP (ultra-wide angle) Aperture size - f/2.2 (#2) Angle of view - 123° (#2) | 720p @ 120 fps Secondary rear camera - 5 MP Sensor model - Samsung S5K5E8 (#2) Sensor type - CMOS BSI (#2) Sensor size - 2.9 x 2.15 mm (#2) Pixel size - 1.12 μm (#2) Aperture size - f/2.2 (#2) |
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 IMX376 Exmor RS | - | - | OmniVision OV5675 |
| Sensor type | CMOS BSI | - | - | PureCel |
| Sensor size | - | - | - | 2.98 x 2.21 mm 0.15 in |
| Sensor format | 1/2.78" | - | - | - |
| Pixel size | 1 µm 0.001000 mm | - | - | 1.151 µm 0.001151 mm |
| Crop factor | - | - | - | 11.66 |
| Aperture | f/2.2 | f/2.2 | f/2 | f/2 |
| Focal length and 35 mm equivalent | 3.82 mm | 3.75 mm | 3.75 mm | - |
| Field of view | - | - | - | 67.9 ° |
| Auxiliary light | LED | - | - | - |
| Image resolution | 5184 x 3880 pixels 20.11 MP | 5760 x 4312 pixels 24.84 MP | 5760 x 4312 pixels 24.84 MP | 2592 x 1944 pixels 5.04 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| Features | - | Face unlock | - | Face unlock |
| Pixel size - 2.0 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 | Loudspeaker Earpiece |
| Headphone adapter | - | - | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | No | Yes | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS BeiDou | GPS A-GPS | GPS A-GPS GLONASS BeiDou Galileo | 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 Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac 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 | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display |
| 2x2 MiMO | - | - | - |
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 | 4.2 |
| Features | A2DP HID | A2DP AVRCP DIP HFP HID HSP MAP OPP PAN PBAP HOGP | A2DP AVRCP DIP HFP HID HSP MAP OPP PAN PBAP HOGP | A2DP HID |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | USB Type-C | USB Type-C | USB Type-C | Micro USB |
| Version | 2.0 | 2.0 | 2.0 | 2.0 |
| Features | Charging Host Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Host 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 | No | Yes | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Infrared Tethering VoLTE | Computer sync OTA sync Tethering NFC VoLTE ANT+ | Computer sync OTA sync Tethering NFC VoLTE ANT+ | Computer sync OTA sync Infrared 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 | 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+ AC3 AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ FLAC M4A MIDI MP3 OGG WMA WAV | AAC AMR AMR-WB eAAC+ FLAC M4A MIDI MP3 OGG WMA WAV | AAC AAC+ AC3 AMR 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 H.263 H.264 H.265 MKV MP4 VC-1 VP8 Xvid | 3GPP 3GPP2 AVI Flash Video H.263 H.264 H.265 MKV MP4 VC-1 VP8 VP9 WebM WMV WMV7 WMV8 Xvid | 3GPP 3GPP2 AVI Flash Video H.263 H.264 H.265 MKV MP4 VC-1 VP8 VP9 WebM WMV WMV7 WMV8 Xvid | 3GPP AVI H.263 H.264 MKV MP4 VC-1 VP8 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 | 3010 mAh | 3500 mAh | 3100 mAh | 4000 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer | Li-Polymer |
| 2G talk time | - | - | 18 h 1080 min 0.8 days | - |
| 3G talk time | - | - | 18 h 1080 min 0.8 days | - |
| Charger output power | 5 V / 2 A | 5 V / 2 A 9 V / 1.67 A | 5 V / 2 A 9 V / 1.67 A | 5 V / 2 A |
| Quick charge technology | Qualcomm Quick Charge 3.0 | - | - | - |
| 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) | 0.963 W/kg | - | 0.49 W/kg | 0.547 W/kg |
| Body SAR (EU) | 0.639 W/kg | - | 1.34 W/kg | 1.473 W/kg |
| Head SAR (USA) | 1.16 W/kg | - | - | 1.04 W/kg |
| Body SAR (USA) | 0.66 W/kg | - | - | 1.15 W/kg |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | M1804D2SI - SAR (Specific Absorption Rate) India: head - 1.092 W/kg; body - 0.259 W/kg | NTT DoCoMo Japan edition | - | - |
| Xiaomi Mi A2 | Samsung Galaxy A41 | Samsung Galaxy A40 | Xiaomi Mi A2 Lite |