Compare phones
| Global Score | |
| 57.6 | 73.1 |
| Basic Information | |
| T-Mobile | Samsung |
| Android 10 | Android 9.0 Pie, 8.0 Oreo |
| 2020-09-04 | 2018-07-13 |
| 6.26 x 2.99 x 0.32 inches | 6.03 x 3.00 x 0.34 inches |
| 5.59 ounces | 6.38 ounces |
| Graphite | Blue |
| Plastic | -- |
| -- | Scratch-Resistant Glass |
| $ 105.00 | $ 107.00 |
| Display / Screen | |
| 6.2 inches | 5.5 inches |
| 1520 x 720 pixels | 1280 x 720 pixels (HD) |
| LCD | TFT |
| 271 pixels per inch | 267 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.1 |
| Performance | |
| MediaTek Helio A22 chipset | Samsung Exynos 7 Octa 7870 chipset |
| ARM Cortex-A53, 64-bit, 12 nm (Quad-Core 2000 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor |
| 2 GB RAM | 2 GB RAM |
| PowerVR GE8300 GPU | Mali-T830 MP1 GPU |
| 8.73 | 8.73 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 400 GB) external memory slot |
| 8.88 | 9.44 |
| Camera | |
| 13.00 MP + 5.00 MP | 13.00 MP + 13.00 MP |
| -- | f/1.70 aperture |
| -- | 28.00mm focal length |
| -- | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 6.93 | 9.13 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 3500mAh Battery | 3300mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.44 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | -- |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy J7 Star has a score of 73.1, which is much better than T-Mobile Revvl 4's overall score of 57.6. Both of these phones work with Android OS (Operating System), but the Samsung Galaxy J7 Star has the newer 9.0 Pie version and T-Mobile Revvl 4 has Android 10 version, offering some nice extra features and performance improvements. Even being the best phone in this comparison review, the Samsung Galaxy J7 Star construction is incredibly older, somewhat heavier and a little bit thicker than T-Mobile Revvl 4.
T-Mobile Revvl 4 and Galaxy J7 Star feature similar CPUs, and although the Galaxy J7 Star has more CPU cores , they both have 2 GB of RAM memory. T-Mobile Revvl 4 has a little more vivid screen than Galaxy J7 Star, because it has a slightly higher resolution of 720 x 1520, a bit larger screen and a just a bit more pixels per inch of display.
The Galaxy J7 Star has a little bit more memory for applications, games, photos and videos than T-Mobile Revvl 4, and although they both have exactly the same 32 GB internal storage capacity, the Galaxy J7 Star also has a SD memory slot that admits a maximum of 400 GB. Samsung Galaxy J7 Star shoots greater videos and photos than T-Mobile Revvl 4. Both have the same 1920x1080 video quality, the same resolution back facing camera and the same video frame rates.
T-Mobile Revvl 4 counts with a little better battery lifetime than Galaxy J7 Star, because it has a 3500mAh battery capacity instead of 3300mAh.
The Galaxy J7 Star costs a little more money than T-Mobile Revvl 4, but you can get a much better phone for that few more dollars.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.