| Hardware and OS | Vivo U1 | |
| Operating system | Funtouch 4.5 OS (Android 8.1 Oreo) | |
| Processor | 4x 1.95 GHz ARM Cortex-A53, 4x 1.45 GHz ARM Cortex-A53, Cores: 8 | |
| GPU | Qualcomm Adreno 505 | |
| RAM | 3 GB, 4 GB | |
| Internal Storage | 32 GB, 64 GB | |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes with Modified Android | |
| Display | Vivo U1 | other phones |
| Type | IPS | |
| Size | 6.2 inches | |
| Resolution | 720 x 1520 pixels | |
| Colors | 16M | |
| Pixel Density | 271 ppi | |
| Touchscreen | Yes | |
| Protection | 2.5D curved glass screen | |
| Features | Capacitive, Multi-touch, Scratch resistant | |
| Connectivity | Vivo U1 | other phones |
| 4G Network | Yes | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, 802.11 n 5GHz, Dual Band, Wi-Fi Direct, Wi-Fi Hotspot | |
| GPS | Yes, with A-GPS, GLONASS, Beidou | |
| NFC | No | |
| USB | Micro USB 2.0 with OTG, Charging and Mass Storage Function | |
| Speed | LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE-TDD 2000 MHz (B34) | |
| SIM | Nano SIM | |
| Dual SIM | Nano-SIM, Nano-SIM / microSD | |
| Wireless Charging | No | |
| Camera | Vivo U1 | other phones |
| Main camera | 12.98 MP (megapixels) | |
| Features | Yes with Single-LED Flash | |
| Image | 4160 x 3120 pixels | |
| Selfie camera | 7.99 MP (megapixels) | |
| Multimedia | Vivo U1 | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | Yes | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | yes | |
| Design | Vivo U1 | other phones |
| Dimensions | 75.09 x 155.11 x 8.28 mm | |
| Waterproof | No | |
| Weight | 163 g | |
| Battery | Vivo U1 | other phones |
| Capacity | 4030 mAh, Li-Ion | |
| Other | Vivo U1 | other phones |
| Sensors | Proximity, Light, Accelerometer, Compass, Gyroscope, Fingerprint | |
