In depth comparison and review of Samsung Galaxy A7 (2018) and Samsung Galaxy M31s. 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 A7 (2018) | Samsung Galaxy M31s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A750FN/DS | SM-M317F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 159.8 mm | 159.3 mm | Samsung Galaxy A7 (2018) has greater height than Samsung Galaxy M31s. |
| Width | 76.8 mm | 74.4 mm | Samsung Galaxy A7 (2018) has greater width than Samsung Galaxy M31s. |
| Depth | 7.5 mm | 9.3 mm | Samsung Galaxy A7 (2018) is narrower than Samsung Galaxy A7 (2018). |
| Weight | 168 g | 203 g | Samsung Galaxy A7 (2018) is lighter than Samsung Galaxy A7 (2018). |
| Body Colour | Gold | Blue | Black | Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.425 W/kg (body), 0.335 W/kg (head) | 1.365 W/kg (body), 0.756 W/kg (head) | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
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 A7 (2018) | Samsung Galaxy M31s |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Super AMOLED | Super AMOLED | |
| Screen Size (Display Size) | 6" | 6.5" | Samsung Galaxy M31s has larger screen size than Samsung Galaxy A7 (2018). |
| Screen Resolution (Display Resolution) | 2220 x 1080 pixels | 2400 x 1080 pixels | Samsung Galaxy M31s has better screen resolution than Samsung Galaxy A7 (2018). |
| Display Format | Full HD+ | Full HD+ | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | Always-on display, 2.5D Glass | Night mode, Edge-to-Edge screen, Infinity O display |
| PROCESSOR | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| Clock Speed | 2.2 GHz | 2.3 GHz | Samsung Galaxy M31s has higher clock speed than Samsung Galaxy A7 (2018). |
|---|---|---|---|
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| MEMORY | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| RAM | 4 GB | 6 GB | Samsung Galaxy M31s has more RAM than Samsung Galaxy A7 (2018). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Samsung Galaxy M31s has more internal memory than Samsung Galaxy A7 (2018). |
| User Memory | 50.2 GB | 106.5 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSD, microSDXC - up to 512 GB |
| CAMERA | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 4 | |
|---|---|---|---|
| Sensor Resolution | 24 Megapixel | 64 Megapixel | Samsung Galaxy M31s has better camera resolution than Samsung Galaxy A7 (2018). |
| Lens Aperture | F/1.7 | F/1.8 | Samsung Galaxy A7 (2018) has better lens aperture than Samsung Galaxy A7 (2018). |
| Field of View (FoV) | - | 81 degree(s) | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 10x | |
| Camera Modes | - | Slow motion video, Bokeh Mode, Live Focus mode | |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 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 1280 x 720 (720p) at 480 fps | |
| Camera Features (Functions) | - | Background blur |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | Samsung Galaxy M31s has better second camera resolution than Samsung Galaxy A7 (2018). |
|---|---|---|---|
| Lens Type (2nd Camera) | Wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | Samsung Galaxy M31s has better second camera lens aperture than Samsung Galaxy A7 (2018). |
| Field of View (2nd Camera) | - | 123 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 5 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.2 | F/2.4 | Samsung Galaxy A7 (2018) has better third camera lens aperture than Samsung Galaxy A7 (2018). |
| Camera Functions (3rd Camera) | Depth camera | Depth camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Camera Functions (4th Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 24 Megapixel | 32 Megapixel | Samsung Galaxy M31s has better front camera resolution than Samsung Galaxy A7 (2018). |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Samsung Galaxy A7 (2018) has better front lens aperture than Samsung Galaxy A7 (2018). |
| Focus Adjustment | - | Focus free | |
| Light Source (Front) | Flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Front) | - | Live Focus |
| BATTERY AND CHARGING | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 6000 mAh | Samsung Galaxy M31s has larger battery capacity than Samsung Galaxy A7 (2018). |
|---|---|---|---|
| Fast Charging Technology | - | Samsung Super Fast Charging | Samsung Galaxy M31s has fast charging technology. |
| Talk Time | 1140 minutes | 3060 minutes | Samsung Galaxy M31s has longer battery life when making calls than Samsung Galaxy A7 (2018). |
| Run Time Details | Talk (WCDMA): up to 1140 min Active online usage (WCDMA): up to 13 hrs Active online usage (LTE): up to 14 hrs Active online usage (Wi-Fi): up to 14 hrs Playback (video): up to 17 hrs Playback (audio): up to 48 hrs Playback (audio (Always On Display Off)): up to 74 hrs |
Active online usage (LTE): up to 22 hrs Active online usage (Wi-Fi): up to 22 hrs Playback (video): up to 27 hrs Playback (audio): up to 125 hrs Talk (4G): up to 3060 min |
| CELLULAR | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Google Android | - | |
| User Interface | - | One UI | |
| Navigation | GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | 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 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/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 | - |
| MEDIA | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| 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, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 |
| FEATURES | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| 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, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, geomagnetic sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | - | Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Light Sensing |
| OTHERS | Samsung Galaxy A7 (2018) | Samsung Galaxy M31s |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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