| Brand: | Vivo |
| Model: | Y51a |
| Type: | Smartphone |
| Release Date: | 2021, January 08 |
| Size: | 6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio) |
| Resolution: | 1080 x 2408 pixels, 20:9 ratio (~401 ppi density) |
| Technology: | IPS LCD |
| Main Features: | LED flash, HDR, panorama |
| Main Video: | 4K@30fps, 1080p@30fps, gyro-EIS |
| Selfie Specs: | 16 MP, f/2.0, (wide), 1/3.06" 1.0µm |
| Selfie Features: | HDR |
| Selfie Video: | 1080p@30fps |
| Capacity: | Li-Po 5000 mAh, non-removable |
| Type: | Li-Po |
| Chipset: | Qualcomm SM6115 Snapdragon 662 (11 nm) |
| Ram: | 6GB |
| Storage: | 128GB |
| Expandable: | microSDXC (dedicated slot) |
| Dimensions: | 163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in) |
| Weight: | 188 g (6.63 oz) |
| Wifi: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth: | 5.0, A2DP, LE |
| Nfc: | No |
| Usb: | USB Type-C 2.0, USB On-The-Go |
| Headphone Jack: | Yes |
| Network: | GSM / HSPA / LTE |
| Sensors: | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Colors: | Titanium Sapphire, Crystal Symphony |