On this page we compare specs vivo Y91 (Mediatek) Octa-core 2.0 GHz Cortex-A53 with Oppo A3s Octa-core 1.8 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 Y91 (Mediatek) | Oppo A3s |
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Operating system | Android 8.1 (Oreo); Funtouch 4.5 | Android 8.1 (Oreo); ColorOS 5.1 |
Processor | Octa-core 2.0 GHz Cortex-A53 | Octa-core 1.8 GHz Cortex-A53 |
Chipset | Mediatek MT6762 Helio P22 (12 nm) | Qualcomm SDM450 Snapdragon 450 (14 nm) |
GPU | PowerVR GE8320 | Adreno 506 |
Internal memory | 64 GB, 3 GB RAM | 16 GB, 2 GB RAM |
External memory | microSD, up to 256 GB | microSD, up to 256 GB (dedicated slot) |
Display | vivo Y91 (Mediatek) | Oppo A3s |
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Type | IPS LCD | IPS LCD |
Size | 6.22" inc | 6.2" inc |
Resolution | 720 x 1520 px | 720 x 1520 px |
Touchscreen | capacitive touchscreen | capacitive touchscreen |
Screen-to-Body Ratio | 82.9% | 81.2% |
Display area | 96.6 cm2 | 95.9 cm2 |
Display aspect ratio | 19:9 (height:width) | 19:9 (height:width) |
Pixel Density | 270 PPI | 271 PPI |
Colors | 16M | 16M |
Connectivity | vivo Y91 (Mediatek) | Oppo A3s |
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2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
3G Network | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 |
4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 40(2300), 41(2500) | LTE |
Wi-Fi | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
SIM card | Single SIM (Nano-SIM)Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
Bluetooth | 5.0, A2DP, LE | 4.2, A2DP, LE |
Edge | Yes | Yes |
GPRS | Yes | Yes |
GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS |
Speed | HSPA 42.2/5.76 Mbps, LTE Cat5 150/75 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
USB | microUSB 2.0, USB On-The-Go | microUSB 2.0, USB On-The-Go |
Camera | vivo Y91 (Mediatek) | Oppo A3s |
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Main camera | 13 MP, Dual | 13 MP, Dual |
Specs | 13 MP, f/2.2, PDAF -2 MP, f/2.4, depth sensor | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor |
Features | LED flash, panorama | LED flash, HDR, panorama |
Video | 1080p@30fps | 1080p@30fps |
Selfie camera | 8 MP, Single | 8 MP, Single |
Multimedia | vivo Y91 (Mediatek) | Oppo A3s |
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3.5 mm Jack | Yes | Yes |
Radio | FM radio | FM radio |
Design | vivo Y91 (Mediatek) | Oppo A3s |
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Colors | Starry Black, Ocean Blue | Red, Dark Purple |
Dimensions | 155.1 x 75.1 x 8.3 mm | 156.2 x 75.6 x 8.2 mm |
Weight | 163.5 g | 168 g |
Battery | vivo Y91 (Mediatek) | Oppo A3s |
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Battery capacity | 4030 mAh, Non-removable Li-Po | 4230 mAh, Non-removable Li-Ion |
Other | vivo Y91 (Mediatek) | Oppo A3s |
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Release date | 2019, January | 2018, July |
Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | Accelerometer, proximity, compass |