On this page we compare specs Vivo S4 MediaTek MT Helio P70 (12nm) with vivo Y91 Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53), we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
Hardware and OS | Vivo S4 | vivo Y91 |
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Operating system | Android v9.0 (Pie) | Android 8.1 (Oreo); Funtouch 4.5 |
Processor | MediaTek MT Helio P70 (12nm) | Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53) |
Chipset | | Qualcomm SDM439 Snapdragon 439 (12 nm) |
RAM | 8 GB | |
GPU | | Adreno 505 |
Internal Storage | 128 GB | |
Internal memory | | 32 GB, 3 GB RAM16 GB, 2 GB RAM |
External memory | | microSD, up to 256 GB |
Display | Vivo S4 | vivo Y91 |
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Type | Super AMOLED | IPS LCD |
Size | 6.5 inches | 6.22" inc |
Resolution | 1080 x 2340 Pixels | 720 x 1520 px |
Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | capacitive touchscreen |
Aspect ratio | 19:9 | |
Screen-to-Body Ratio | | 82.9% |
Display area | | 96.6 cm2 |
Display aspect ratio | | 19:9 (height:width) |
Pixel Density | 400 ppi | 270 PPI |
Colors | | 16M |
Connectivity | Vivo S4 | vivo Y91 |
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Network support | 4G , 3G, 2G | |
NFC | Yes | |
Dual SIM | Dual SIM, GSM GSM | |
2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
SIM size | SIM1: Nano, SIM2: Nano | |
3G Network | | HSDPA 850 / 900 / 2100 |
USB TYPE-C | Yes | |
4G Network | | LTE band 1(2100), 3(1800), 5(850), 40(2300), 41(2500) |
USB connectivity | Mass storage device, USB charging | |
Wi-Fi | Yes, Wi-Fi 802.11, b/g/n | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
Network | | GSM / HSPA / LTE |
SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
Bluetooth | Yes, v5.0 | 4.2, A2DP, LE |
Edge | | Yes |
GPRS | | Yes |
GPS | Yes, with A-GPS, Glonass | Yes, with A-GPS, GLONASS, BDS |
Speed | | HSPA 42.2/5.76 Mbps, LTE Cat5 150/75 Mbps |
USB | | microUSB 2.0, USB On-The-Go |
Camera | Vivo S4 | vivo Y91 |
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Front camera resolution | 25MP, f/2.0, AF HDR 1080p (Moterized Pop Up) | |
Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
Flash | Yes, LED Flash | |
Autofocus | Yes | |
Video recording | Yes | |
Main camera | | 13 MP, Dual |
Specs | | 13 MP, f/2.2, PDAF -2 MP, f/2.4, depth sensor |
Features | | LED flash, panorama |
Video | | 1080p@30fps |
Selfie camera | | 8 MP, Single |
Multimedia | Vivo S4 | vivo Y91 |
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Audio jack | 3.5 MM | |
Loudspeaker | Yes | |
3.5 mm Jack | | Yes |
Radio | | FM radio |
Design | Vivo S4 | vivo Y91 |
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Colours | Black | |
Colors | | Starry Black, Ocean Blue, Red (Y91i only) |
Dimensions | | 155.1 x 75.1 x 8.3 mm |
Weight | | 163.5 g |
Battery | Vivo S4 | vivo Y91 |
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Capacity | 4500 mAh | |
Type | Li-ion | |
User replaceable | No | |
Battery capacity | | 4030 mAh, Non-removable Li-Po |
Other | Vivo S4 | vivo Y91 |
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Fingerprint sensor | Yes | |
Fingerprint sensor position | On-Screen | |
Other sensors | Accelerometer, Gyro, Proximity, Compass | |
Release date | | 2018, November |
Sensors | | Fingerprint (rear-mounted), accelerometer, proximity, compass |