| Hardware and OS | vivo S1 | |
| Operating system | Android 9.0 (Pie); Funtouch 9 | |
| Processor | Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | |
| Chipset | Mediatek MT6768 Helio P65 (12nm) | |
| GPU | Mali-G52 MC2 | |
| Internal memory | 128 GB, 4/6 GB RAM | |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Display | vivo S1 | other phones |
| Type | IPS LCD | |
| Size | 6.53" inc | |
| Resolution | 1080 x 2340 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 83.3% | |
| Display area | 104.7 cm2 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | 395 PPI | |
| Colors | 16M | |
| Other | Always-on display | |
| Connectivity | vivo S1 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Network | GSM / CDMA / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.0, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat7 300/50 Mbps | |
| USB | microUSB 2.0, USB On-The-Go | |
| Camera | vivo S1 | other phones |
| Main camera | 12 MP, Triple | |
| Specs | 16 MP, f/1.8, (wide), 1/2.8", 1.12µm, PDAF
- 8 MP, f/2.2, 13mm (ultrawide)
- 2 MP, f/2.4, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | 25 MP, Single | |
| Multimedia | vivo S1 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | vivo S1 | other phones |
| Colors | Diamond Black, Skyline Blue, Cosmic Green | |
| Dimensions | 159.5 x 75.2 x 8.1 mm | |
| Weight | 179 g | |
| Battery | vivo S1 | other phones |
| Battery capacity | 3940 mAh, Non-removable Li-Po | |
| Other | vivo S1 | other phones |
| Release date | 2019, March | |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | |
