On this page we compare specs Vivo Y77 Octa core (2.4 GHz, Dual core, Cortex A76 2 GHz, Hexa Core, Cortex A55) 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 Y77 | vivo Y91 |
|---|
| Operating system | Android v12 | Android 8.1 (Oreo); Funtouch 4.5 |
| Processor | Octa core (2.4 GHz, Dual core, Cortex A76 2 GHz, Hexa Core, Cortex A55) | Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53) |
| Custom UI | Funtouch OS | |
| Chipset | MediaTek Dimensity 810 MT6833 | Qualcomm SDM439 Snapdragon 439 (12 nm) |
| GPU | Mali-G57 MC2 | Adreno 505 |
| Internal memory | 128 GB | 32 GB, 3 GB RAM16 GB, 2 GB RAM |
| Architecture | 64 bit | |
| External memory | Yes, Up to 1 TB | microSD, up to 256 GB |
| RAM | 8 GB | |
| Display | Vivo Y77 | vivo Y91 |
|---|
| Type | IPS LCD | IPS LCD |
| Size | 6.6 inches (16.76 cm) | 6.22" inc |
| Resolution | | 720 x 1520 px |
| Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | capacitive touchscreen |
| Screen-to-Body Ratio | | 82.9% |
| Display area | | 96.6 cm2 |
| Screen format | 20:9 | |
| Display aspect ratio | | 19:9 (height:width) |
| PPI /points per inch/ | 399 ppi | |
| Pixel Density | | 270 PPI |
| Colors | | 16M |
| Connectivity | Vivo Y77 | vivo Y91 |
|---|
| 4G Bands | TD-LTE 2300(band 40), FD-LTE 1800(band 3) | |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Network Support | 5G, 4G, 3G, 2G | |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| 4G Network | | LTE band 1(2100), 3(1800), 5(850), 40(2300), 41(2500) |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| 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 | SIM1: Nano, SIM2: Nano (Hybrid) | Dual SIM (Nano-SIM, dual stand-by) |
| USB Connectivity | Mass storage device, USB charging | |
| Bluetooth | Yes, v5.1 | 4.2, A2DP, LE |
| VoLTE | Yes | |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | Yes with A-GPS | 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 Y77 | vivo Y91 |
|---|
| Camera Setup | Triple | |
| Autofocus | Yes | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Main camera | 64 MP, Primary Camera, 2 MP, Macro Camera, 2 MP, Depth Camera, | 13 MP, Dual |
| Flash | Yes, LED Flash | |
| Specs | | 13 MP, f/2.2, PDAF
-2 MP, f/2.4, depth sensor |
| Image Resolution | 9000 x 7000 Pixels | |
| Features | | LED flash, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 16 MP, Primary Camera, | 8 MP, Single |
| Multimedia | Vivo Y77 | vivo Y91 |
|---|
| Headphone jack | 3.5 mm | |
| Loudspeaker | Yes | |
| 3.5 mm Jack | | Yes |
| Radio | | FM radio |
| Design | Vivo Y77 | 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 Y77 | vivo Y91 |
|---|
| Capacity | 5000 mAh | |
| Type | Li-Polymer | |
| Removable | No | |
| Quick Charging | Yes, Fast | |
| USB Type-C | Yes | |
| Battery capacity | | 4030 mAh, Non-removable Li-Po |
| Other features | Vivo Y77 | vivo Y91 |
|---|
| Fingerprint Sensor | Yes | |
| Fingerprint Sensor Position | Side | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | |
| Other | Vivo Y77 | vivo Y91 |
|---|
| Release date | | 2018, November |
| Sensors | | Fingerprint (rear-mounted), accelerometer, proximity, compass |
