Side by side comparison and review of Samsung Galaxy J3 (2017) and Samsung Galaxy M31s. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-J330FN | SM-M317F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 143.2 mm | 159.3 mm | Samsung Galaxy M31s has greater height than Samsung Galaxy J3 (2017). |
| Width | 70.3 mm | 74.4 mm | Samsung Galaxy M31s has greater width than Samsung Galaxy J3 (2017). |
| Depth | 8.2 mm | 9.3 mm | Samsung Galaxy J3 (2017) is narrower than Samsung Galaxy J3 (2017). |
| Weight | 142 g | 203 g | Samsung Galaxy J3 (2017) is lighter than Samsung Galaxy J3 (2017). |
| Body Colour | Gold | Blue | Black | Black | |
| Body Material | Metal | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.32 W/kg (body), 0.658 W/kg (head) | 1.365 W/kg (body), 0.756 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B 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 | Single-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | PLS | Super AMOLED | |
| Screen Size (Display Size) | 5" | 6.5" | Samsung Galaxy M31s has larger screen size than Samsung Galaxy J3 (2017). |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2400 x 1080 pixels | Samsung Galaxy M31s has better screen resolution than Samsung Galaxy J3 (2017). |
| Display Format | HD | Full HD+ | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | 2.5D Glass | Night mode, Edge-to-Edge screen, Infinity O display |
| PROCESSOR | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| Processor Type (CPU) | Samsung Exynos 7570 | - | |
|---|---|---|---|
| Clock Speed | 1.4 GHz | 2.3 GHz | Samsung Galaxy M31s has higher clock speed than Samsung Galaxy J3 (2017). |
| Processor Core Qty | Quad-core | 8-core | Samsung Galaxy M31s has higher processor core quantity than Samsung Galaxy J3 (2017). |
| MEMORY | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| RAM | 2 GB | 6 GB | Samsung Galaxy M31s has more RAM than Samsung Galaxy J3 (2017). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 128 GB | Samsung Galaxy M31s has more internal memory than Samsung Galaxy J3 (2017). |
| User Memory | 10.5 GB | 106.5 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSD, microSDXC - up to 512 GB |
| CAMERA | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 64 Megapixel | Samsung Galaxy M31s has better camera resolution than Samsung Galaxy J3 (2017). |
| Lens Aperture | F/1.9 | F/1.8 | Samsung Galaxy M31s has better lens aperture than Samsung Galaxy J3 (2017). |
| 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) | - | 12 Megapixel | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 123 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd 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) | 5 Megapixel | 32 Megapixel | Samsung Galaxy M31s has better front camera resolution than Samsung Galaxy J3 (2017). |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | - | Focus free | |
| Camera Features (Front) | - | Live Focus |
| BATTERY AND CHARGING | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| Battery Capacity (Battery Size) | 2400 mAh | 6000 mAh | Samsung Galaxy M31s has larger battery capacity than Samsung Galaxy J3 (2017). |
|---|---|---|---|
| Fast Charging Technology | - | Samsung Super Fast Charging | Samsung Galaxy M31s has fast charging technology. |
| Talk Time | 900 minutes | 3060 minutes | Samsung Galaxy M31s has longer battery life when making calls than Samsung Galaxy J3 (2017). |
| Run Time Details | Playback (Music): up to 61 hrs Continuous browsing (3G): up to 12 hrs Playback (video): up to 14 hrs Continuous browsing (4G): up to 14 hrs Talk (3G): up to 900 min Continuous browsing (Wi-Fi): up to 14 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 J3 (2017) | 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 J3 (2017) | 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 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 17, Band 20, Band 38, Band 40 | 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 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700b, FDD 800 DD, TDD 2600, TDD 2300 | 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 802.11b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, PBAP, MAP, DIP, HOGP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| Supported Digital Audio Standards | WMA, MP3, FLAC, OGG, MP4 | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | VC-1, MPEG-4, H.264, H.263, MP43, VP8, VP9, H.265, WMV7 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 |
| FEATURES | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, geomagnetic sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Additional Phone Features | Dual Messenger | Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Light Sensing |
| OTHERS | Samsung Galaxy J3 (2017) | Samsung Galaxy M31s |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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