Compare phones
| Global Score | |
| 84.1 | 79.2 |
| Basic Information | |
| Samsung | Motorola |
| Android 11, 10 | Android 15 |
| 2020-03-23 | 2025-04-24 |
| 6.26 x 2.96 x 0.35 inches | -- |
| 6.63 ounces | 7.02 ounces |
| Midnight blue and Raven black | -- |
| 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 |
| 4 GB RAM | 16 GB RAM |
| Mali-G72 MP3 GPU | Adreno 830 GPU |
| 9.27 | 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 | |
| 48.00 MP + 20.00 MP | 50.00 MP + 50.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") 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 |
| 11.55 | 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 |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy M21 is slightly better than Motorola Razr Ultra (2025), getting an 84.1 score against 79.2. These phones use Android OS (Operating System), but the Samsung Galaxy M21 has older 11 version while Motorola Razr Ultra (2025) has Android 15 version. The Galaxy M21 features a much better display than Motorola Razr Ultra (2025), although it has way darker display and a little smaller display.
Galaxy M21 counts with a much greater hardware performance than Motorola Razr Ultra (2025), although it has less RAM memory, they both have 8 cores. The Motorola Razr Ultra (2025) takes slightly better photographs and videos than Samsung Galaxy M21, because it has a larger aperture to take better captures and videos in poorly lited environments, a way higher 7680x4320 video definition and a back-facing camera with more mega-pixels.
The Motorola Razr Ultra (2025) has a much better memory capacity to install games and applications than Galaxy M21, because although it has no SD card slot, it also counts with 512 GB internal memory capacity. The Samsung Galaxy M21 features better battery performance than Motorola Razr Ultra (2025), because it has 6000mAh of battery capacity.
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