| Samsung Galaxy S9+ | Vivo Y91 | |
| Specifications | ||
| Brand | Samsung | Vivo |
| Model | - | - |
| Release Date | March 2018 | November 2018 |
| Operating System | Experience UI (Android 8.0) | Android 8.1 |
| Dimensions | ||
| Size | 158.1 x 73.8 x 8.5 mm 6.22 x 2.91 x 0.33 in |
155.1 x 75.1 x 8.3 mm 6.11 x 2.96 x 0.33 in |
| Weight | 189 g 6.67 oz |
164 g 5.77 oz |
| Screen | ||
| Size | 6.2 inches | 6.22 inches |
| Resolution | 1,440 x 2,960 pixels | 720 x 1,520 pixels |
| PPI | 529 | 270 |
| Features | OLED | - |
| Cameras | ||
| Rear | Dual camera 12 MP f/1.5 Wide 12 MP f/2.4 Telephoto |
Dual camera 13 MP f/2.2 2 MP f/2.4 Depth |
| Front | Dual camera 8 MP f/1.7 Wide 2 MP Iris |
8 MP f/1.8 |
| Storage | ||
| Memory | 6 GB | 2 GB 3 GB |
| Fixed | 64 GB 128 GB 256 GB |
16 GB 32 GB |
| Removable | microSDXC | microSDXC |
| Processor | ||
| Chip | Samsung Exynos 9810 Octa-core processor 10 nm |
Qualcomm Snapdragon 439 SDM439 Octa-core processor 12 nm |
| CPU | 4x 2.70 GHz Mongoose M3 4x 1.80 GHz Cortex-A55 |
4x 1.95 GHz Cortex-A53 4x 1.45 GHz Cortex-A53 |
| GPU | Mali-G72 MP18 | Adreno 505 |
| Battery | ||
| Capacity | 3,500 mAh | 4,030 mAh |
| Features | Fast charging 15W | - |
| Removable | ||
| Connectivity | ||
| 5G | ||
| NFC | ||
| 3.5 mm Audio Jack | ||
| Micro USB | ||
| USB Type-C | ||
| Lightning | ||