Samsung Galaxy J7 Prime 2 (SM-G611M/DS) vs Samsung Galaxy M31 (SM-M315F/DS 128GB/6GB)
Side by side comparison between Samsung Galaxy J7 Prime 2 vs Samsung Galaxy M31 phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
PLS
PLS
1080x1920
13
MP
MP
13mp
3GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Non removable)
vs
6.4"
AMOLED
AMOLED
1080x2340
64
MP
MP
32mp
6GB
RAM
RAM
Octa-core
6000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy M31 (SM-M315F/DS 128GB/6GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
5 Advantages 
23 Advantages | 19 Common items in both devices |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| 4G LTE / 4G LTE-A |
| Capacitive |
| +12 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Model | Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) |
| Other model names | Galaxy J7 Prime 2 G611M/Dual-Sim, Galaxy J7 Prime 2018 | Galaxy M315F/Dual-Sim (128GB + 6GB RAM) |
| Country or region available |  (Latin America) |      (Latin America), (Global, International), Philippines, India, Indonesia, Malaysia |
| Brand | Samsung | Samsung |
| Release date | 3/26/2018 | 3/5/2020, Announced: 2/25/2020 |
| Depth | 8 millimeters (0.31 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 75 x 151.7 millimeters (2.95 x 5.97 in) | 75.1 x 159.2 millimeters (2.96 x 6.27 in) |
| Weight | 170 grams (5.95 ounces) | 191 grams (6.69 ounces) |
| Build, materials | Aluminum body, glass front, aluminum back with plastic ends | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Display type | TFT PLS | Super AMOLED |
| Screen size | 5.5" inches | 6.4" inches |
| Screen-to-body ratio | ~73.3% (screen-to-body ratio) | ~84.1% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | 420nits[peak] |
🤖 Operating System | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| System version | Android 7.1 Nougat | Android 10 |
| Firmware update | Android 9.0 Pie | Android 11 |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Chipset | 64bit: Samsung Exynos 7870 (14nm) | 64bit: Samsung Exynos 9611 (10nm) |
| CPU | Octa-core, 1 processor: 8x 1.6GHz ARM Cortex-A53 (Octa-core) | Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-T830 MP1 (700MHz) | ARM Mali-G72 MP3 (850MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| RAM memory | 3GB LPDDR3 | 6GB LPDDR4X |
| Internal storage | 32GB (22GB available) | 128GB (108GB available) UFS 2.1 |
| External storage | Until 256GB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 600/150 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 700/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,17,28) | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Back camera (main camera) | 13 megapixels | (quad camera) 64 megapixels 8MP ultrawide f/2.212mm1/4.0"1.12µm 5MP macro f/2.425mm1/5.0"1.12µm 5MP depth f/2.2 |
| Main camera resolution | 4128x3096 pixels | 10120x6328 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/1.9 (aperture) | f/1.8 (aperture) |
| Focal length | 28mm lens | 26mm lens |
| Sensor size | feature not registered | 1/1.72" inches |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Front camera (secondary) | 13 megapixels | 32 megapixels |
| Front camera resolution | 4128x3096 pixels | 6528x4896 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/1.9 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | feature not registered | 1/2.8" inches |
| Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, DivX, XviD, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Sensors | Accelerometer Ambient light sensor ANT+ Face unlock Fingerprint sensor (front-mounted) Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 3300 mAh | 6000 mAh |
| Charger, watts | Wired charging | 15W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 21 hours | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, Gold, Rose Gold • ANT+ support | • Colors: Ocean Blue, Space Black, Red • One UI 2.0, 3.1 |
☢️ Radiation rate | ||
| Galaxy J7 Prime 2 (SM-G611M/DS) | Galaxy M31 (SM-M315F/DS 128GB/6GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.67W/kg (head), 0.66W/kg (body) | 0.52W/kg (head), 0.69W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.482W/kg (head), 1.127W/kg (body) |