Compare phones
| Global Score | |
| 86.5 | 79.2 |
| Basic Information | |
| Samsung | Motorola |
| Android 11, 10 | Android 15 |
| 2020-03-05 | 2025-04-24 |
| 6.27 x 2.96 x 0.35 inches | -- |
| 6.74 ounces | 7.02 ounces |
| Black, Blue and Red | -- |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.4 inches | 7 inches |
| 2340 x 1080 pixels | -- |
| Super AMOLED | LTPO |
| 403 pixels per inch | -- |
| 420 cd/m2 brightness | 4500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 5.5 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (3 nm) chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | processor |
| 6 GB RAM | 16 GB RAM |
| Mali-G72 MP3 GPU | Adreno 830 GPU |
| 9.36 | 6.3 |
| Storage | |
| 64 GB internal memory | 512 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 17.6 |
| Camera | |
| 64.00 MP + 32.00 MP | 50.00 MP + 50.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.59 inches (1/1.7") sensor | -- |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 3840 x 2160 (60 fps) (4K) slow motion video |
| 12.1 | 11.99 |
| Networks | |
| Wi-Fi | -- |
| Mobile Hotspot | -- |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 7.6 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4700mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 6.56 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy M31 has a global score of 86.5, which is a bit better than Motorola Razr Ultra (2025)'s 79.2 global score. Both phones in this comparison review come with Android OS (Operating System), but the Galaxy M31 has an older 11 version and Motorola Razr Ultra (2025) has Android 15 version. The Galaxy M31 counts with a much more vibrant screen than Motorola Razr Ultra (2025), although it has a little bit smaller screen and much less brightness.
The Samsung Galaxy M31 has a very superior hardware performance than Motorola Razr Ultra (2025), although it has lesser RAM memory, they both have 8 cores. The Galaxy M31 features a bit better camera than Motorola Razr Ultra (2025), and although they both have the same 30 frames per second video frame rates, a same size diafragm aperture and the same 3840x2160 (4K) video resolution, the Galaxy M31 also has a back-facing camera with lot more mega pixels.
Motorola Razr Ultra (2025) counts with a way bigger memory capacity to install games and applications than Galaxy M31, because although it has no external SD slot, it also counts with 448 GB more internal memory capacity. The Samsung Galaxy M31 features superior battery lifetime than Motorola Razr Ultra (2025), because it has a 6000mAh battery size.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.