| Hardware and OS | vivo S1 (China) | |
| Operating system | Android 9.0 (Pie); Funtouch 9 | |
| Processor | Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | |
| Chipset | Mediatek MT6771 Helio P70 (12nm) | |
| Internal memory | 128GB 6GB RAM | |
| External memory | microSDXC | |
| GPU | Mali-G72 MP3 | |
| Display | vivo S1 (China) | other phones |
| Size | 6.53 inches, 104.7 cm2 | |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio | |
| Type | IPS LCD capacitive touchscreen, 16M colors | |
| Main Camera | vivo S1 (China) | other phones |
| Camera | 12 MP, f/1.8, 13mm (ultrawide), PDAF
8 MP, f/2.2, (wide)
5 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 2160p@30fps, 1080p@30fps | |
| Selfie camera | vivo S1 (China) | other phones |
| Camera | Motorized pop-up 25 MP, f/2.0 | |
| Features | HDR | |
| Video | 1080p@30fps | |
| Connectivity | vivo S1 (China) | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | |
| Bluetooth | 5.0, A2DP, LE | |
| CDMA | CDMA 800 & TD-SCDMA | |
| GPS | Yes, with A-GPS, GLONASS, BDS | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat7 300/50 Mbps | |
| Technology | GSM / CDMA / HSPA / LTE | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Multimedia | vivo S1 (China) | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | FM radio | |
| Battery | vivo S1 (China) | other phones |
| Capacity | Non-removable Li-Po 3940 mAh battery | |
| Design | vivo S1 (China) | other phones |
| Colors | Blue, Pink, Ice black | |
| Dimensions | 162 x 76 x 8.5 mm (6.38 x 2.99 x 0.33 in) | |
| Weight | 189.5 g (6.70 oz) | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Features | vivo S1 (China) | other phones |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | |
