| Hardware and OS | Vivo Y66 | |
| Operating system | Android 6.0 (Marshmallow) | |
| GPU | Adreno 505, Mali-T860 MP2 | |
| RAM | 3GB | |
| Internal Storage | 32GB | |
| Memory Card Slot | Yes (up to 256GB) | |
| User Interface | Funtouch OS 3.0 | |
| Display | Vivo Y66 | other phones |
| Type | IPS | |
| Size | 5.5 inch | |
| Resolution | 1280 x 720 (HD) | |
| Colors | 16.7 Million Colors | |
| Pixel Density | 267 ppi | |
| Touchscreen | Yes | |
| Protection | Corning Gorilla Glass 3 | |
| Features | Capacitive Touchscreen | |
| Connectivity | Vivo Y66 | other phones |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Single Band, Wi-Fi Direct | |
| GPS | Yes - GPS/ AGPS | |
| NFC | No | |
| USB | MicroUSB 2.0, (Support OTG) | |
| Speed | HSPA, HSPA , LTE | |
| SIM | Nano SIM | |
| Dual SIM | Yes (Micro, Nano SIM - With Hybrid MicroSD Expansion) | |
| Camera | Vivo Y66 | other phones |
| Main camera | 13 MP, f/2.2 | |
| Features | LED Flash | |
| Selfie camera | 16 MP, f/2.0 | |
| Multimedia | Vivo Y66 | other phones |
| Loudspeaker | Yes | |
| Radio | Yes | |
| Video Playback | MP4, 3GP | |
| Ring Tones | Yes | |
| 3.5 mm Jack | yes | |
| Design | Vivo Y66 | other phones |
| Dimensions | 153.8 x 75.5 x 7.6mm | |
| Waterproof | No | |
| Weight | 155g | |
| Battery | Vivo Y66 | other phones |
| Placement | Non-Removable | |
| Other | Vivo Y66 | other phones |
| Sensors | Accelerometer, Ambient Light Sensor, Proximity Sensor, Magnetometer | |
