On this page we compare specs Vivo Y4 Octa core (2.3 GHz, Quad core, Cortex A53 1.8 GHz, Quad core, Cortex A53) 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 Y4 | vivo Y91 |
|---|
| Operating system | Android v11 | Android 8.1 (Oreo); Funtouch 4.5 |
| Processor | Octa core (2.3 GHz, Quad core, Cortex A53 1.8 GHz, Quad core, Cortex A53) | Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53) |
| Chipset | MediaTek Helio P35 MT6765 | Qualcomm SDM439 Snapdragon 439 (12 nm) |
| GPU | PowerVR GE8320 | Adreno 505 |
| Architecture | 64 bit | |
| Internal memory | 128 GB | 32 GB, 3 GB RAM16 GB, 2 GB RAM |
| External memory | Yes, Up to 256 GB | microSD, up to 256 GB |
| RAM | 4 GB | |
| Display | Vivo Y4 | vivo Y91 |
|---|
| Type | IPS LCD | IPS LCD |
| Size | 6.35 inches (16.13 cm) | 6.22" inc |
| Resolution | | 720 x 1520 px |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | capacitive touchscreen |
| Screen-to-Body Ratio | | 82.9% |
| PPI /points per inch/ | 265 ppi | |
| Display area | | 96.6 cm2 |
| Display aspect ratio | | 19:9 (height:width) |
| Pixel Density | | 270 PPI |
| Colors | | 16M |
| Connectivity | Vivo Y4 | vivo Y91 |
|---|
| 4G Bands | TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) | |
| Network Support | 4G, 3G, 2G | |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| 4G Network | | LTE band 1(2100), 3(1800), 5(850), 40(2300), 41(2500) |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| USB Connectivity | Mass storage device, USB charging, microUSB 2.0 | |
| Network | | GSM / HSPA / LTE |
| VoLTE | Yes | |
| SIM card | SIM1: Nano, SIM2: Nano | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth | Yes, v5.2 | 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 Y4 | vivo Y91 |
|---|
| Camera Setup | Dual | |
| Autofocus | Yes | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Image Resolution | 4128 x 3096 Pixels | |
| Main camera | 13 MP f/2.2, Primary Camera, 2 MP f/2.4, Depth Camera, | 13 MP, Dual |
| Video Recording | 1920x1080 @ 30 fps | |
| 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 f/1.8, Primary Camera, | 8 MP, Single |
| Multimedia | Vivo Y4 | vivo Y91 |
|---|
| Headphone jack | 3.5 mm | |
| Loudspeaker | Yes | |
| 3.5 mm Jack | | Yes |
| Radio | | FM radio |
| Design | Vivo Y4 | vivo Y91 |
|---|
| Colors | | Starry Black, Ocean Blue, Red (Y91i only) |
| Dimensions | | 155.1 x 75.1 x 8.3 mm |
| Weight | | 163.5 g |
| Battery | Vivo Y4 | vivo Y91 |
|---|
| Capacity | 5000 mAh | |
| Type | Li-Polymer | |
| Removable | No | |
| Quick Charging | Yes, Fast, 10W | |
| USB Type-C | No | |
| Battery capacity | | 4030 mAh, Non-removable Li-Po |
| Other features | Vivo Y4 | vivo Y91 |
|---|
| Fingerprint Sensor | Yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer | |
| Other | Vivo Y4 | vivo Y91 |
|---|
| Release date | | 2018, November |
| Sensors | | Fingerprint (rear-mounted), accelerometer, proximity, compass |
