| Brand: | Vivo |
| Model: | Y91i |
| Type: | Smartphone |
| Release Date: | 2018 |
| Size: | 6.2 inches, 95.9 cm2 |
| Resolution: | 720 x 1520 pixels, 19:9 ratio (~271 ppi density) |
| Technology: | IPS LCD |
| Main Specs: | 13 MP, f/2.2, PDAF Auxiliary lens |
| Main Features: | LED flash, panorama |
| Main Video: | 1080p@30fps |
| Selfie Specs: | 8 MP, f/2.0 |
| Selfie Video: | 1080p@30fps |
| Capacity: | 4030 mAh |
| Chipset: | Qualcomm SDM439 Snapdragon 439 (12 nm) |
| Cpu: | Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53) |
| Gpu: | Adreno 505 |
| Ram: | 2GB |
| Storage: | 16GB |
| Expandable: | microSDXC |
| Os: | Android 8.1 (Oreo), Funtouch 4.5 |
| Os Version: | 8.1 |
| Dimensions: | 155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in) |
| Weight: | 163.5 g (5.78 oz) |
| Sim: | Nano-SIM + Nano-SIM |
| Wifi: | Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
| Bluetooth: | 4.2, A2DP, LE |
| Nfc: | No |
| Usb: | microUSB 2.0, OTG |
| Headphone Jack: | Yes |
| Network: | GSM / HSPA / LTE |
| Sensors: | Fingerprint (rear-mounted), accelerometer, proximity, compass |
| Colors: | Starry Black, Ocean Blue, Red |
| Usd: | ~140 USD |
| Os Family: | Android |
| Os Launch Version: | 8.1 |
| Os Skin: | Funtouch 4.5 |
