In depth comparison and review of Samsung Galaxy A71 and Samsung Galaxy A31. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A715F/DS | SM-A315G/DS | |
| Form Factor | Touch | Touch | |
| Height | 163.6 mm | 159.3 mm | Samsung Galaxy A71 has greater height than Samsung Galaxy A31. |
| Width | 76 mm | 73.1 mm | Samsung Galaxy A71 has greater width than Samsung Galaxy A31. |
| Depth | 7.7 mm | 8.6 mm | Samsung Galaxy A71 is narrower than Samsung Galaxy A71. |
| Weight | 179 g | 185 g | Samsung Galaxy A71 is lighter than Samsung Galaxy A71. |
| Body Colour | Prism crush silver | Prism crush blue | Prism crush black | Haze crush silver | Prism crush black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.562 W/kg (body), 0.512 W/kg (head) | 1.68 W/kg (body), 0.488 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Super AMOLED Plus | Super AMOLED | |
| Screen Size (Display Size) | 6.7" | 6.4" | Samsung Galaxy A71 has larger screen size than Samsung Galaxy A31. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2400 x 1080 pixels | Both phones have the same screen resolution. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 394 ppi | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| HDR | Yes | - | Samsung Galaxy A71 has HDR. |
| Display Enhancement Technology | Blue light filter | - | |
| Display Features | Infinity O display | Night mode, Edge-to-Edge screen, Infinity U Display |
| PROCESSOR | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 730 | - | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2 GHz | Samsung Galaxy A71 has higher clock speed than Samsung Galaxy A31. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Samsung Galaxy A71 has 64-bit architecture. |
| MEMORY | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| RAM | 6 GB | 4 GB | Samsung Galaxy A71 has more RAM than Samsung Galaxy A31. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | Samsung Galaxy A71 has more internal memory than Samsung Galaxy A31. |
| User Memory | 106.1 GB | 46.2 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 4 | |
|---|---|---|---|
| Sensor Resolution | 64 Megapixel | 48 Megapixel | Samsung Galaxy A71 has better camera resolution than Samsung Galaxy A31. |
| Lens Aperture | F/1.8 | F/2.0 | Samsung Galaxy A71 has better lens aperture than Samsung Galaxy A71. |
| Field of View (FoV) | - | 80 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 8x | 8x | Both phones have the same digital zoom. |
| Special Effects | Bokeh effect | - | |
| Camera Modes | Pro mode, night mode, HYPERLAPSE, Super slow motion, AR Emoji, Food, Portrait, Pano mode | Depth bokeh | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1920 x 1080 (1080p) at 960 fps, Slo-mo video 1280 x 720 (720p) at 960 fps, Slo-mo video 1280 x 720 (720p) at 480 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Live Focus | Live Focus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 8 Megapixel | Samsung Galaxy A71 has better second camera resolution than Samsung Galaxy A31. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Field of View (2nd Camera) | 123 degree(s) | 123 degree(s) | Both phones have the same second camera lens field of view. |
| Minimum Focal Length (2nd Camera) | - | 40 mm | |
| Camera Functions (2nd Camera) | - | Macro camera |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 5 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Camera Functions (3rd Camera) | Macro camera | Depth camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | 5 Megapixel | Both phones have the same resolution of the fourth camera. |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/2.2 | F/2.4 | Samsung Galaxy A71 has better fourth camera lens aperture than Samsung Galaxy A71. |
| Camera Functions (4th Camera) | Depth camera | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 20 Megapixel | Samsung Galaxy A71 has better front camera resolution than Samsung Galaxy A31. |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | - | Focus free | |
| Camera Modes (Front) | Selfie focus | - | |
| Light Source (Front) | Display flash | - | |
| Camera Features (Front) | Background blur | - |
| BATTERY AND CHARGING | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 5000 mAh | Samsung Galaxy A31 has larger battery capacity than Samsung Galaxy A71. |
|---|---|---|---|
| Fast Charging Technology | Samsung Super Fast Charging | - | Samsung Galaxy A71 has fast charging technology. |
| Talk Time | 2520 minutes | 1980 minutes | Samsung Galaxy A71 has longer battery life when making calls than Samsung Galaxy A31. |
| Run Time Details | Active online usage (4G): up to 16 hrs Active online usage (Wi-Fi): up to 16 hrs Playback (audio): up to 107 hrs Talk (4G): up to 2520 min Playback (video): up to 24 hrs |
Active online usage (LTE): up to 20 hrs Active online usage (Wi-Fi): up to 20 hrs Playback (video): up to 22 hrs Playback (audio): up to 97 hrs Talk (LTE): up to 1980 min |
| CELLULAR | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | Android 10 | |
| User Interface | Samsung One UI 2 | One UI | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 28, Band 38, Band 40, Band 41, Band 66 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 28, Band 38, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+ | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | |
| Sound Enhancements | Dolby Atmos sound technology | - |
| FEATURES | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader (under display) | |
| Additional Phone Features | Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines | Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Proximity Sensing |
| OTHERS | Samsung Galaxy A71 | Samsung Galaxy A31 |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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