Compare phones
| Global Score | |
| 73.1 | 80.6 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 9.0 Pie, 8.0 Oreo | Android 14 |
| 2018-07-13 | 2024-10-29 |
| 6.03 x 3.00 x 0.34 inches | 6.00 x 2.80 x 0.32 inches |
| 6.38 ounces | 6.67 ounces |
| Blue | -- |
| -- | Glass |
| Scratch-Resistant Glass | -- |
| $ 107.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1280 x 720 pixels (HD) | 2670 x 1200 pixels |
| TFT | OLED |
| 267 pixels per inch | 457 pixels per inch |
| -- | 3200 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.1 | 10.2 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Snapdragon 8 Elite SM8750-AB (3 nm) chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | processor |
| 2 GB RAM | 12 GB RAM |
| Mali-T830 MP1 GPU | Adreno 830 GPU |
| 8.73 | 6.21 |
| Storage | |
| 32 GB internal memory | 256 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | No SD card slot |
| 9.44 | 13.3 |
| Camera | |
| 13.00 MP + 13.00 MP | 50.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.60 aperture |
| 28.00mm focal length | 23.00mm focal length |
| 0.33 inches (1/3.06") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 9.13 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G |
| Nano SIM | Nano SIM |
| 6.6 | 7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 5400mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.28 | 7.12 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass and Gyroscope |
Comparison review
Xiaomi 15 is much better than Samsung Galaxy J7 Star, getting an 80.6 score against 73.1. Xiaomi 15's construction is extremely newer and just a little bit thinner than Samsung Galaxy J7 Star's, although it's a little heavier. Both phones we compare here have Android OS, but the Xiaomi 15 has older 14 version while Samsung Galaxy J7 Star has Android 9.0 Pie.
The Xiaomi 15 counts with a much sharper display than Galaxy J7 Star, because it has a way better 1200 x 2670 resolution, a bigger display and a much greater quantity of pixels per inch of screen. Galaxy J7 Star counts with a much greater performance than Xiaomi 15, although it has a lower amount of RAM, they both have 8 cpu cores.
The Xiaomi 15 has a much bigger storage to install games and applications than Galaxy J7 Star, because although it has no SD memory card expansion slot, it also counts with 256 GB internal memory. Xiaomi 15 shoots a lot better pictures and videos than Samsung Galaxy J7 Star, because it has a back-facing camera with much more megapixels, a larger diafragm aperture to take better photos and videos in poorly lited environments and a much higher 7680x4320 video quality.
Xiaomi 15 features a much better battery lifetime than Samsung Galaxy J7 Star, because it has a 5400mAh battery capacity.
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