Vivo X21 vs Huawei Nova 9 Pro
| Type | Touch | Touch |
| Dimensions | 154.45 x 74.78 x 7.37 mm | 163.40 x 74.40 x 7.97 mm |
| Weight | 156.20 g | 186.00 g |
| Display size | 6.28" | 6.72" |
| Display | Color / Super AMOLED 16M colors 1080 x 2280 px (6.28") 402 ppi | Color / OLED 1,07G colors 120 Hz 1236 x 2676 px (6.72") 439 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
| |
| Additional display | ||
| Protection of the secondary display | ||
| Standard battery | Li-Ion 3200 mAhBuy powerbank
| Li-Ion 4000 mAhBuy powerbank
|
| Quick battery charging | ||
| Wireless battery charging | ||
| Internal memory | 64 GB, 128 GB | 128 GB, 256 GB |
| RAM memory | 6 GB | 8 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 256 GBBuy memory card | |
| Operating system | Android 8.1 Oreo | HarmonyOS 2.0 |
| Interface | Funtouch 4.0 | - |
| Processor | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 778G SM7325 |
| Processor clock | 2200 MHz | 2420 MHz |
| GPU | Adreno 512 | Adreno 642L |
| Touchscreen | ||
| DualSIM | ||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | ||
| Announced | 1Q 2018 | 3Q 2021 |
| Other names | - | RTE-AL00 |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | FDD LTE: 2100, 1900, 1800, 1700, 900, 850 TDD LTE: 2600, 2500, 2300, 2100, 1900 | FDD LTE: 2100, 1900, 1800, 1700, 900, 850 TDD LTE: 2600, 2500, 2300, 2000, 1900 |
| Standard 5G | ||
| CDMA | 850 | 850 CDMA2000 1X |
| Standard TD-SCDMA | 1900 2000 | |
| UMA |

