On this page we compare specs Vivo X51 Pro Qualcomm SDM765 Snapdragon 765G (7 nm) 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 X51 Pro | vivo Y91 |
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Operating system | Android v11 | Android 8.1 (Oreo); Funtouch 4.5 |
Processor | Qualcomm SDM765 Snapdragon 765G (7 nm) | Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53) |
RAM | 8 GB | |
Chipset | | Qualcomm SDM439 Snapdragon 439 (12 nm) |
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 X51 Pro | vivo Y91 |
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Type | AMOLED | IPS LCD |
Size | 6.56 inches | 6.22" inc |
Resolution | 1080 x 2376 pixels | 720 x 1520 px |
Touchscreen | Yes, Capacitive Touchscreen, Multi-touch | capacitive touchscreen |
Screen-to-Body Ratio | | 82.9% |
Display area | | 96.6 cm2 |
Display aspect ratio | | 19:9 (height:width) |
Pixel Density | 398 ppi | 270 PPI |
Colors | | 16M |
Connectivity | Vivo X51 Pro | vivo Y91 |
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Network support | 5G , 4G , 3G, 2G | |
Dual SIM | Dual SIM, GSM GSM | |
SIM size | SIM1: Nano, SIM2: Nano | |
USB connectivity | Mass storage device, USB charging | |
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), 40(2300), 41(2500) |
Wi-Fi | Yes, Wi-Fi 802.11, a/ac/b/g/n/n 5GHz | 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, v5.1 | 4.2, A2DP, LE |
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 X51 Pro | vivo Y91 |
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Front camera resolution | 32 MP Primary Camera | |
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 X51 Pro | vivo Y91 |
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Loudspeaker | Yes | |
3.5 mm Jack | | Yes |
Radio | | FM radio |
Design | Vivo X51 Pro | vivo Y91 |
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Colours | Dark Blue, Light Blue | |
Colors | | Starry Black, Ocean Blue, Red (Y91i only) |
Dimensions | | 155.1 x 75.1 x 8.3 mm |
Weight | | 163.5 g |
Battery | Vivo X51 Pro | vivo Y91 |
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Capacity | 5000 mAh | |
Type | Lithium Polymer | |
User replaceable | No | |
Battery capacity | | 4030 mAh, Non-removable Li-Po |
Other | Vivo X51 Pro | 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 |