Detailed comparison and review of Samsung Galaxy J7 Duo and Samsung Galaxy M30s. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-J720F | SM-M307FN/DS | |
| Form Factor | Touch | Touch | |
| Height | 153.5 mm | 159 mm | Samsung Galaxy M30s has greater height than Samsung Galaxy J7 Duo. |
| Width | 77.2 mm | 75.1 mm | Samsung Galaxy J7 Duo has greater width than Samsung Galaxy M30s. |
| Depth | 8.2 mm | 8.9 mm | Samsung Galaxy J7 Duo is narrower than Samsung Galaxy J7 Duo. |
| Weight | 174 g | 188 g | Samsung Galaxy J7 Duo is lighter than Samsung Galaxy J7 Duo. |
| Body Colour | Black | Black | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.397 W/kg (body), 0.543 W/kg (head) | 1.13 W/kg (body), 0.492 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) | Micro SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | HD Super AMOLED | Super AMOLED | |
| Screen Size (Display Size) | 5.5" | 6.4" | Samsung Galaxy M30s has larger screen size than Samsung Galaxy J7 Duo. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2340 x 1080 pixels | Samsung Galaxy M30s has better screen resolution than Samsung Galaxy J7 Duo. |
| Display Format | HD | Full HD+ | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | - | Night mode, Infinity U Display |
| PROCESSOR | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| Processor Type (CPU) | - | Samsung | |
|---|---|---|---|
| Clock Speed | 1.6 GHz | 2.3 GHz | Samsung Galaxy M30s has higher clock speed than Samsung Galaxy J7 Duo. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| MEMORY | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| RAM | 3 GB | 4 GB | Samsung Galaxy M30s has more RAM than Samsung Galaxy J7 Duo. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Samsung Galaxy M30s has more internal memory than Samsung Galaxy J7 Duo. |
| User Memory | 21.9 GB | 50.5 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 48 Megapixel | Samsung Galaxy M30s has better camera resolution than Samsung Galaxy J7 Duo. |
| Lens Aperture | F/1.9 | F/2.0 | Samsung Galaxy J7 Duo has better lens aperture than Samsung Galaxy J7 Duo. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 4x | |
| Light Source | LED flash | 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 |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 8 Megapixel | Samsung Galaxy M30s has better second camera resolution than Samsung Galaxy J7 Duo. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/1.9 | F/2.2 | Samsung Galaxy J7 Duo has better second camera lens aperture than Samsung Galaxy J7 Duo. |
| Field of View (2nd Camera) | - | 123 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.2 | |
| Camera Functions (3rd Camera) | - | Depth camera | |
| Camera Features (3rd Camera) | - | Live Focus |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 16 Megapixel | Samsung Galaxy M30s has better front camera resolution than Samsung Galaxy J7 Duo. |
| Lens Aperture (Front) | F/1.9 | F/2.0 | Samsung Galaxy J7 Duo has better front lens aperture than Samsung Galaxy J7 Duo. |
| Focus Adjustment | - | Focus free |
| BATTERY AND CHARGING | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 6000 mAh | Samsung Galaxy M30s has larger battery capacity than Samsung Galaxy J7 Duo. |
|---|---|---|---|
| Talk Time | 1200 minutes | 2940 minutes | Samsung Galaxy M30s has longer battery life when making calls than Samsung Galaxy J7 Duo. |
| Run Time Details | Active online usage (WCDMA): up to 11 hrs Active online usage (LTE): up to 13 hrs Active online usage (Wi-Fi): up to 13 hrs Playback (video): up to 17 hrs Playback (audio): up to 66 hrs Talk (WCDMA): up to 1200 min |
Active online usage (LTE): up to 22 hrs Active online usage (Wi-Fi): up to 22 hrs Playback (video): up to 29 hrs Playback (audio): up to 131 hrs Talk (LTE): up to 2940 min |
| CELLULAR | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Google Android | Google Android | |
| User Interface | - | One UI | |
| Intelligent Assistant | Bixby | - | |
| Navigation | GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 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 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | |
| 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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/ANT | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 LE | |
| NFC | - | Yes | Samsung Galaxy M30s has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| 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 J7 Duo | Samsung Galaxy M30s |
|---|
| 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 | Accelerometer, proximity sensor, gyro sensor, geomagnetic sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | - | Fast Charging, Game Booster, Virtual Light Sensing |
| OTHERS | Samsung Galaxy J7 Duo | Samsung Galaxy M30s |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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