Samsung Galaxy J7 Duo vs Samsung Galaxy M31 (8GB RAM +128GB)
Quick Comparison
Samsung Galaxy M31 (8GB RAM +128GB) has better RAM than Samsung Galaxy J7 Duo. In terms of display resolution, Samsung Galaxy M31 (8GB RAM +128GB) has better resolution of 2340 x 1080 than Samsung Galaxy J7 Duo which has resolution of 1280 x 720. Samsung Galaxy M31 (8GB RAM +128GB) has more internal memory than Samsung Galaxy J7 Duo
| Name | Samsung Galaxy J7 Duo | Samsung Galaxy M31 (8GB RAM +128GB) |
| RAM | 4 GB | 8 GB |
|---|---|---|
| Display | 5.5 in | 6.4 in |
| Internal Memory | 32 GB | 128 GB |
| Battery | 3000 mAh | 6000 mAh |
| Camera | 13 MP + 5 MP Dual | 64 MP Quad |
| Price | Rs. 12399 | Rs. 22999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is April, 2018. The cost of Samsung Galaxy J7 Duo is Rs. 12399. The launch Date of the second phone is May 30, 2020. The cost of Samsung Galaxy M31 (8GB RAM +128GB) is Rs. 22999.
Display comparison
Samsung Galaxy M31 (8GB RAM +128GB) has larger screen size of 6.4 inches in comparison to Samsung Galaxy J7 Duo's 5.5 inch screen. Both the phones have Super AMOLED Screen Type. Samsung Galaxy M31 (8GB RAM +128GB) has display density of 403 PPI & Samsung Galaxy J7 Duo has only 267 PPI display density. Samsung Galaxy J7 Duo has 16:9 aspect ratio where as Samsung Galaxy M31 (8GB RAM +128GB) has 19.5:9 aspect ratio.
Memory comparison
Samsung Galaxy M31 (8GB RAM +128GB)'s larger 8 GB RAM is better for playing games and all with respect to Samsung Galaxy J7 Duo's lower 4 GB RAM. Samsung Galaxy M31 (8GB RAM +128GB) has more Internal Memory (128 GB) than Samsung Galaxy J7 Duo (32 GB).
Camera comparison
Samsung Galaxy M31 (8GB RAM +128GB)'s 64 MP Quad Rear Camera outclasses Samsung Galaxy J7 Duo's 13 MP + 5 MP Dual Rear Camera in terms of resolution. Samsung Galaxy M31 (8GB RAM +128GB) will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to Samsung Galaxy J7 Duo's 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 8.0 and the second one on 10.0 version.
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Full Comparison
| Name | Samsung Galaxy J7 Duo | Samsung Galaxy M31 (8GB RAM +128GB) |
| General | ||
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Micro+Micro SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | April, 2018 | May 30, 2020 |
| Design | ||
| Dimensions | 77.2 x 153.5 x 8.19 mm | 75.1 x 159.2 x 8.9 mm |
| Weight | 174 g | 191 g |
| Display | ||
| Type | Color Super AMOLED Screen (16M colors Colors) | Color Super AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 5.5 inches, 720 x 1280 pixels | 6.4 inches, 1080 x 2340 pixels |
| Aspect Ratio | 16:9 | 19.5:9 |
| PPI | ~ 267 PPI | ~ 403 PPI |
| Screen to Body Ratio | ~ 84.1% | |
| Glass Type | Corning Gorilla Glass 3 | |
| Notch | Yes, Water Drop Notch | |
| Memory | ||
| RAM | 4 GB | 8 GB |
| Storage | 32 GB | 128 GB |
| Card Slot | Yes | Yes, upto 512 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes | Yes, v5.0, A2DP, LE |
| USB | Yes | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | |
| Extra | ||
| GPS | Yes, with A-GPS Support | yes with A-GPS |
| Fingerprint Sensor | Yes | Yes, Rear |
| Face Unlock | Yes | |
| Sensors | Accelerometer | Geomagnetic Sensor, Proximity sensor, Accelerometer, Gyro Sensor, Virtual Light Sensing, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| Extra Features | UFS 2.1 | |
| Camera | ||
| Rear Camera | 13 MP + 5 MP with autofocus | 64 MP f/1.8 (Wide Angle) 8 MP f/2.2 (Ultra Wide) 5 MP f/2.2 (Macro) 5 MP f/2.2 (Depth Sensor) with autofocus |
| Features | Face detection, Geo tagging, Panorama, Touch to focus | Digital Zoom, Auto Flash, Face detection, Touch to focus |
| Video Recording | 1080p @ 30 fps FHD | 4K @ 30 fps UHD, 1080p @ 30 fps FHD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 8 MP with LED Flash | 32 MP f/2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | |
| Technical | ||
| OS | Android v8.0 (Oreo) | Android v10.0, upgradable to v12 |
| Chipset | Samsung Exynos 7870 | Samsung Exynos 9611 |
| CPU | 1.6 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53 | |
| GPU | Mali-T830 MP1 | Mali-G72 MP3 |
| Java | Yes, via 3rd party | No |
| Browser | Yes, supports HTML | Yes, supports HTML5 |
| Multimedia | ||
| Supports | MMS, Instant Messaging | |
| Yes, with Push Email | Yes | |
| Music | MP3, WAV, WMA, eAAC+, FLAC | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, WMA, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA |
| Video | MP4, WMV, H.264 | MP4, M4V, 3GP, 3G2, WMV, ASF, AVI, FLV, MKV, WEBM |
| FM Radio | Yes | Yes, with FM Recording |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Removable Battery | Non-Removable Battery |
| Size | 3000 mAh, Li-ion Battery | 6000 mAh, Li-Po Battery |
| Fast Charging | Yes, 15W Fast Charging | |
| Talk Time | 2 days | |
| Music Playback Time | 119 hours | |