| Global Score | |
| 73.5 | 80.1 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 14 | Android 15 |
| 6.30 x 3.02 x 0.33 inches | -- |
| 7.05 ounces | -- |
| Black, Fantasy Blue, Optimistic Blue and Personality Yellow | -- |
| Plastic and Plastic | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 2340 x 1080 pixels | -- |
| Super AMOLED | AMOLED |
| 396 pixels per inch | -- |
| 800 cd/m2 brightness | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 5 |
| Performance | |
| Mediatek Helio G99 MT6789 (6 nm) chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset |
| processor | processor |
| 8 GB RAM | 16 GB RAM |
| Mali-G57 MC2 GPU | Adreno 830 GPU |
| 6.21 | 6.3 |
| Storage | |
| 128 GB internal memory | 512 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 17.6 |
| Camera | |
| 50.00 MP + 13.00 MP | 200.00 MP + 32.00 MP |
| f/1.80 aperture | -- |
| -- | 7680 x 4320 (30 fps) video resolution |
| -- | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 9.46 | 12.87 |
| Networks | |
| Wi-Fi | -- |
| Mobile Hotspot | -- |
| LTE-A (4G) and LTE (4G) | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM |
| 5.6 | 7.6 |
| Battery Life | |
| 5000mAh Battery | 6000mAh Si - Carbon Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 7.52 |
| Other Features | |
| Bluetooth | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
The Xiaomi 15 Ultra (Rumored) is slightly better than the Galaxy A15, getting an 80.1 score against 73.5. Xiaomi 15 Ultra (Rumored)'s body is a lot thinner and a lot lighter than the Galaxy A15. Both phones in this comparison work with Android operating system, but Xiaomi 15 Ultra (Rumored) has the newer 15 version and Galaxy A15 has Android 14 version.
Galaxy A15 has a much sharper display than Xiaomi 15 Ultra (Rumored), although it has way less brightness and a bit smaller display. Xiaomi 15 Ultra (Rumored) has a lot bigger memory capacity to store more apps and games than Galaxy A15, because it has 512 GB internal storage capacity. The Xiaomi 15 Ultra (Rumored) features a bit faster processor than Samsung Galaxy A15, and although they both have a Octa-Core processing unit, the Xiaomi 15 Ultra (Rumored) also has a greater amount of RAM memory.
The Xiaomi 15 Ultra (Rumored) takes much better photos and videos than Galaxy A15, because it has a camera in the back with a much better 200 MP resolution. Xiaomi 15 Ultra (Rumored) features better battery lifetime than Samsung Galaxy A15, because it has a 20 percent bigger battery size.
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