Samsung Galaxy M21 Vs Samsung Galaxy A31 Specs Comparison
Samsung Galaxy M21 packs with Exynos 9611 chipset, 4 GB or 6 GB RAM, 64 GB or 128 GB storage, 6.4" Super AMOLED screen, 6000 mAh battery with 15W fast charging, triple rear camera with 48 MP main sensor + 8 MP ultra-wide lens + 5 MP depth sensor, 20 MP front camera, and 175 $ price on launch.
While Samsung Galaxy A31 is powered by Helio P65 chipset, 4 GB or 6 GB RAM, 64 GB or 128 GB storage, 6.4" Super AMOLED screen, 5000 mAh battery with 15W fast charging, quad rear camera with 48 MP main sensor + 8 MP ultra-wide lens + 5 MP depth-sensor + 5 MP macro lens, and 20 MP front camera.
Here’s an in-depth specifications comparison between Samsung Galaxy M21 Vs Samsung Galaxy A31.
Jump to:
Samsung Galaxy A31
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Samsung Galaxy M21
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Brand and Model
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Brand and Model
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Brand
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Brand
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Samsung
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Samsung
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Model
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Model
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Galaxy A31
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Galaxy M21
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Galaxy A31 Operating System
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Galaxy M21 Operating System
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Android 10
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Android 10
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User Interface (UI)
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User Interface (UI)
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One UI 2.0
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One UI 2.0
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| Galaxy A31 System on Chip (SOC) | Galaxy M21 System on Chip (SOC) |
| SOC | SOC |
| MediaTek Helio P65 | Samsung Exynos 7 Octa 9611 |
| Process Technology | Process Technology |
| 12 nm | 10 nm |
| CPU | CPU |
| 2x 2.0 GHz Cortex-A75 | 4x 2.3 GHz ARM Cortex-A73 |
| 6x 1.7 GHz Cortex-A55 | 4x 1.7 GHz ARM Cortex-A53 |
| CPU Bits | CPU Bits |
| 64 bit | 64 bit |
| Instruction Set | Instruction Set |
| ARMv8-A | ARMv8-A |
| CPU Frequency | |
| 2000 MHz | 2300 MHz |
| CPU Cores | CPU Cores |
| 8 | 8 |
| GPU | GPU |
| ARM Mali-G72 MP3 | |
| GPU Cores | GPU Cores |
| 3 |
| Galaxy A31 RAM Capacity | Galaxy M21 RAM Capacity |
| 4 GB | 4 GB |
| 6 GB | 6 GB |
| RAM Type | RAM Type |
| LPDDR4X | LPDDR4X |
| RAM Channels | RAM Channels |
| Double channel | Double channel |
| Galaxy A31 Storage | Galaxy M21 Storage |
| 64 GB | 64 GB |
| 128 GB | 128 GB |
| UFS 2.1 | |
| Galaxy A31 Memory Cards | Galaxy M21 Memory Cards |
| microSD | microSD |
| microSDHC | microSDHC |
| microSDXC | microSDXC |
| Galaxy A31 Display | Galaxy M21 Display |
| Type / Technology | Type / Technology |
| Super AMOLED | Super AMOLED |
| Diagonal Size | Diagonal Size |
| 6.4 in | 6.4 in |
| 162.56 mm | 162.56 mm |
| 16.26 cm | 16.26 cm |
| Width | Width |
| 2.63 in | 2.68 in |
| 66.71 mm | 68.12 mm |
| 6.67 cm | 6.81 cm |
| Height | Height |
| 5.84 in | 5.81 in |
| 148.24 mm | 147.6 mm |
| 14.82 cm | 14.76 cm |
| Aspect Ratio | Aspect Ratio |
| 2.222:1 | 2.167:1 |
| Resolution | Resolution |
| 1080 x 2400 pixels | 1080 x 2340 pixels |
| Pixel Density | Pixel Density |
| 411 ppi | 403 ppi (pixels per inch) |
| 161 ppcm | 158 ppcm (pixels per centimeter) |
| Color Depth | Color Depth |
| 24 bit | 24 bit |
| 16777216 colors | 16777216 colors |
| Display Area | Display Area |
| 85.20% | 84.48% |
| Other Features | Other Features |
| Capacitive | Capacitive |
| Multi-touch | Multi-touch |
| Scratch resistant | Infinity U Display |
| 2.5D curved glass screen | |
| Corning Gorilla Glass 3 | |
| Peak brightness - 420 cd/m² | |
| 78960:1 | |
| Galaxy A31 Sensors | Galaxy M21 Sensors |
| Proximity | Proximity |
| Light | |
| Accelerometer | Accelerometer |
| Compass | Compass |
| Gyroscope | Gyroscope |
| Geomagnetic | |
| Fingerprint | Fingerprint |
| Hall | Virtual Light Sensor |
| Galaxy A31 Rear Camera | Galaxy M21 Rear Camera |
| Sensor type | Sensor type |
| CMOS BSI (backside illumination) | |
| Sensor format | Sensor format |
| 1/2" | |
| Pixel size | Pixel size |
| 0.8 µm (micrometers) | 0.8 µm (micrometers) |
| 0.000800 mm | 0.000800 mm |
| Aperture | Aperture |
| f/2 | f/2 |
| Focal Length | Focal Length |
| 26 mm *(35 mm / full frame) | |
| Flash Type | Flash Type |
| LED | LED |
| Image Resolution | Image Resolution |
| 8000 x 6000 pixels | 8000 x 6000 pixels |
| 48 MP | 48 MP |
| Video resolution | Video resolution |
| 1920 x 1080 pixels | 3840 x 2160 pixels |
| 2.07 MP | 8.29 MP |
| Video FPS | Video FPS |
| 30 fps | 30 fps |
| Features | Features |
| Autofocus | Autofocus |
| Continuous shooting | Continuous shooting |
| Digital zoom | Digital zoom |
| Geotagging | Geotagging |
| Panorama | Panorama |
| HDR | HDR |
| Touch focus | Touch focus |
| Face detection | Face detection |
| White balance settings | White balance settings |
| ISO settings | ISO settings |
| Exposure compensation | Exposure compensation |
| Self-timer | Self-timer |
| Scene mode | Scene mode |
| Phase detection autofocus (PDAF) | |
| Secondary rear camera - 8 MP (ultra-wide) | Secondary rear camera - 8 MP (ultra-wide angle) |
| Sensor size - 1/4" (#2) | |
| Pixel size - 1.12 µm (#2) | |
| Aperture size - f/2.2 (#2) | Aperture size - f/2.2 (#2) |
| Angle of view - 123° (#2) | |
| Third rear camera - 5 MP (depth-sensing) | Third rear camera - 5 MP (depth) |
| Aperture size - f/2.4 (#3) | Aperture size - f/2.2 (#3) |
| Fourth rear camera - 5 MP (macro) | |
| Aperture size - f/2.4 (#4) |
| Galaxy A31 Front Camera | Galaxy M21 Front Camera |
| Sensor Type | Sensor Type |
| CMOS BSI (backside illumination) | |
| Aperture | Aperture |
| f/2.2 | f/2 |
| Focal length | Focal length |
| 26 mm *(35 mm / full frame) | |
| Image Resolution | Image Resolution |
| 20 MP | 20 MP |
| Video Resolution | Video Resolution |
| 1920 x 1080 pixels | 1920 x 1080 pixels |
| 2.07 MP | 2.07 MP |
| Video FPS | Video FPS |
| 30 fps | 30 fps |
| Features | Features |
| Face unlock | |
| Galaxy A31 Audio | Galaxy M21 Audio |
| Speaker | Speaker |
| Loudspeaker | Loudspeaker |
| Earpiece | Earpiece |
| Dolby Atmos for stereo headsets | |
| Widevine L1 Certification | |
| Galaxy A31 Radio | Galaxy M21 Radio |
| Yes | Yes |
| RDS | |
| Galaxy A31 Tracking / Positioning | Galaxy M21 Tracking / Positioning |
| GPS | GPS |
| A-GPS | A-GPS |
| GLONASS | GLONASS |
| BeiDou | BeiDou |
| Galaxy A31 Wi-Fi | Galaxy M21 Wi-Fi |
| 802.11a (IEEE 802.11a-1999) | |
| 802.11b (IEEE 802.11b-1999) | 802.11b (IEEE 802.11b-1999) |
| 802.11g (IEEE 802.11g-2003) | 802.11g (IEEE 802.11g-2003) |
| 802.11n (IEEE 802.11n-2009) | 802.11n (IEEE 802.11n-2009) |
| 802.11n 5GHz | |
| 802.11ac (IEEE 802.11ac) | |
| Dual band | Wi-Fi Hotspot |
| Wi-Fi Hotspot | Wi-Fi Direct |
| Wi-Fi Direct |
| Galaxy A31 Bluetooth | Galaxy M21 Bluetooth |
| Version | Version |
| 5 | 5 |
| Features | Features |
| A2DP (Advanced Audio Distribution Profile) | A2DP (Advanced Audio Distribution Profile) |
| AVRCP (Audio/Visual Remote Control Profile) | LE (Low Energy) |
| DIP (Device ID Profile) | |
| HFP (Hands-Free Profile) | |
| HID (Human Interface Profile) | |
| HSP (Headset Profile) | |
| MAP (Message Access Profile) | |
| OPP (Object Push Profile) | |
| PAN (Personal Area Networking Profile) | |
| PBAP/PAB (Phone Book Access Profile) | |
| HOGP | |
| Galaxy A31 USB | Galaxy M21 USB |
| Connector Type | Connector Type |
| USB Type-C | USB Type-C |
| Version | Version |
| 2 | 2 |
| Features | Features |
| Charging | Charging |
| Mass storage | Mass storage |
| On-The-Go | On-The-Go |
| Galaxy A31 Headphone Jack | Galaxy M21 Headphone Jack |
| Yes | Yes |
| Galaxy A31 Connectivity | Galaxy M21 Connectivity |
| Computer sync | Computer sync |
| OTA sync | OTA sync |
| Tethering | Tethering |
| NFC | |
| VoLTE | |
| Galaxy A31 Browser | Galaxy M21 Browser |
| HTML | HTML |
| HTML5 | HTML5 |
| CSS 3 | CSS 3 |
| Galaxy A31 Audio File Formats / Codecs | Galaxy M21 Audio File Formats / Codecs |
| AAC (Advanced Audio Coding) | AAC (Advanced Audio Coding) |
| AMR / AMR-NB / GSM-AMR (Adaptive Multi-Rate, .amr, .3ga) | AMR / AMR-NB / GSM-AMR (Adaptive Multi-Rate, .amr, .3ga) |
| AMR-WB (Adaptive Multi-Rate Wideband, .awb) | AMR-WB (Adaptive Multi-Rate Wideband, .awb) |
| eAAC+ / aacPlus v2 / HE-AAC v2 | eAAC+ / aacPlus v2 / HE-AAC v2 |
| FLAC (Free Lossless Audio Codec, .flac) | FLAC (Free Lossless Audio Codec, .flac) |
| M4A (MPEG-4 Audio, .m4a) | M4A (MPEG-4 Audio, .m4a) |
| MIDI | MIDI |
| MP3 (MPEG-2 Audio Layer II, .mp3) | MP3 (MPEG-2 Audio Layer II, .mp3) |
| OGG (.ogg, .ogv, .oga, .ogx, .spx, .opus) | OGG (.ogg, .ogv, .oga, .ogx, .spx, .opus) |
| WMA (Windows Media Audio, .wma) | WMA (Windows Media Audio, .wma) |
| WAV (Waveform Audio File Format, .wav, .wave) | WAV (Waveform Audio File Format, .wav, .wave) |
| Galaxy A31 Video File Formats / Codecs | Galaxy M21 Video File Formats / Codecs |
| 3GPP (3rd Generation Partnership Project, .3gp) | 3GPP (3rd Generation Partnership Project, .3gp) |
| 3GPP2 (3rd Generation Partnership Project 2, .3g2) | 3GPP2 (3rd Generation Partnership Project 2, .3g2) |
| AVI (Audio Video Interleaved, .avi) | AVI (Audio Video Interleaved, .avi) |
| Flash Video (.flv, .f4v, .f4p, .f4a, .f4b) | Flash Video (.flv, .f4v, .f4p, .f4a, .f4b) |
| H.263 | H.263 |
| H.264 / MPEG-4 Part 10 / AVC video | H.264 / MPEG-4 Part 10 / AVC video |
| H.265 / MPEG-H Part 2 / HEVC | H.265 / MPEG-H Part 2 / HEVC |
| MKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks) | MKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks) |
| MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v) | MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v) |
| VC-1 | VC-1 |
| VP8 | VP8 |
| VP9 | VP9 |
| WebM | WebM |
| WMV (Windows Media Video, .wmv) | WMV (Windows Media Video, .wmv) |
| WMV7 (Windows Media Video 7, .wmv) | WMV7 (Windows Media Video 7, .wmv) |
| WMV8 (Windows Media Video 8, .wmv) | WMV8 (Windows Media Video 8, .wmv) |
| Xvid | Xvid |
| Galaxy A31 Battery | Galaxy M21 Battery |
| Capacity | Capacity |
| 5000 mAh | 6000 mAh |
| Type | Type |
| Li-Ion | Li-Ion |
| Features | Features |
| Fast charging | Fast charging |
| Non-removable | Non-removable |
| Charger Output Power | Charger Output Power |
| 5 V / 2 A | 5 V / 3 A |
| 9 V / 1.67 A | |
| Galaxy A31 Launch | Galaxy M21 Launch |
| Announced | Announced |
| 2020, 24th March | 2020, 19th March |
| Status | Status |
| Exp. Release April 2020 | Release 23th March 2020 |
| Galaxy A31 Price | Galaxy M21 Price |
| - | 4 GB + 64 GB = 175 $ |
| Galaxy A31 Design | Galaxy M21 Design |
| Colors | Colors |
| Prism Crush Black | Raven Black |
| Prism Crush Blue | Midnight Blue |
| Prism Crush Red | |
| Prism Crush White | |
| Width | Width |
| 73.1 mm | 75.1 mm |
| 7.31 cm | 7.51 cm |
| 0.24 ft | 0.25 ft |
| 2.88 in | 2.96 in |
| Height | Height |
| 159.3 mm | 159 mm |
| 15.93 cm | 15.9 cm |
| 0.52 ft | 0.52 ft |
| 6.27 in | 6.26 in |
| Thickness | Thickness |
| 8.6 mm | 8.9 mm |
| 0.86 cm | 0.89 cm |
| 0.03 ft | 0.03 ft |
| 0.34 in | 0.35 in |
| Weight | Weight |
| 185 g | 188 g |
| 0.41 lbs | 0.41 lbs |
| 6.53 oz | 6.63 oz |
| Volume | Volume |
| 100.15 cm³ | 106.27 cm³ |
| 6.08 in³ | 6.45 in³ |
| Body Materials | Body Materials |
| Plastic | Plastic |
| Galaxy A31 SIM Card | Galaxy M21 SIM Card |
| SIM Card Type | SIM Card Type |
| Nano-SIM (4FF - fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm) | Nano-SIM (4FF - fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm) |
| Number of SIM Cards | Number of SIM Cards |
| 2 | 2 |
| Features | Features |
| Dual SIM stand-by | Dual SIM stand-by |
| Galaxy A31 Mobile Network Technology and Bandwidth | Galaxy M21 Mobile Network Technology and Bandwidth |
| UMTS (384 kbit/s ) | UMTS (384 kbit/s ) |
| EDGE | EDGE |
| GPRS | GPRS |
| HSPA+ (HSUPA 5.76 Mbit/s , HSDPA 42 Mbit/s ) | HSPA+ (HSUPA 5.76 Mbit/s , HSDPA 42 Mbit/s ) |
| LTE Cat 10 (102.0 Mbit/s , 452.2 Mbit/s ) | LTE |
| Galaxy A31 Networks | Galaxy M21 Networks |
| GSM | GSM |
| GSM 850 MHz (B5) | GSM 850 MHz (B5) |
| GSM 900 MHz (B8) | GSM 900 MHz (B8) |
| GSM 1800 MHz (B3) | GSM 1800 MHz (B3) |
| GSM 1900 MHz (B2) | GSM 1900 MHz (B2) |
| UMTS | UMTS |
| UMTS 850 MHz (B5) | UMTS 850 MHz (B5) |
| UMTS 900 MHz (B8) | UMTS 900 MHz (B8) |
| UMTS 1900 MHz (B2) | UMTS 1900 MHz (B2) |
| UMTS 2100 MHz (B1) | UMTS 2100 MHz (B1) |
| LTE | LTE |
| LTE-FDD 800 MHz (B20) | |
| LTE-FDD 850 MHz (B5) | LTE-FDD 850 MHz (B5) |
| LTE-FDD 900 MHz (B8) | LTE-FDD 900 MHz (B8) |
| LTE-FDD 1900 MHz (B25) | LTE-FDD 1800 MHz (B3) |
| LTE-FDD 2100 MHz (B1) | LTE-FDD 2100 MHz (B1) |
| LTE-FDD 2600 MHz (B7) | LTE-FDD 2600 MHz (B7) |
| LTE-TDD 2300 MHz (B40) | |
| LTE-TDD 2500 MHz (B41) | |
| LTE-TDD 2600 MHz (B38) |
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