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vivo Y91 vs OPPO A1K
Comparing the vivo Y91 vs OPPO A1K across performance, display, camera, battery, storage and user rating to help determine the better smartphone.
Here is the summary of the results:
Performance: Both vivo Y91 and OPPO A1K run at the same processing speed of 2.0 GHz.
Display: vivo Y91 offers a screen size of 6.22 inches, while OPPO A1K offers 6.1 inches, making vivo Y91 the larger display of the two. Both vivo Y91 and OPPO A1K feature the same IPS LCD display.
Rear Camera: vivo Y91 offers a higher rear camera resolution with 13 MP, while OPPO A1K offers 8 MP, making vivo Y91 better for rear camera photography.
Front Camera: vivo Y91 offers a higher front camera resolution with 8 MP, while OPPO A1K offers 5 MP, making vivo Y91 better for front camera photography.
Battery: vivo Y91 offers a higher battery capacity with 4030 mAh, while OPPO A1K offers 4000 mAh, making vivo Y91 better for longer battery life.
Storage: Both vivo Y91 and OPPO A1K offer the same internal storage of 32 GB.
User Rating: vivo Y91 receives a higher user rating of 4.4, while OPPO A1K has a rating of 4.3.
Summary
Spec Score
|
71%
|
70%
|
Release Date
|
14 Jan, 2019
|
01 May, 2019
|
Performance
|
|
|
|
MediaTek Helio P22
|
MediaTek Helio P22
|
|
Tru-Octa Core (upto 2 GHz)
|
Tru-Octa Core (upto 2 GHz)
|
|
2 GB RAM
|
2 GB RAM
|
Display
|
|
|
|
6.22 inches (15.8 cm)
|
6.1 inches (15.49 cm)
|
|
IPS LCD
|
IPS LCD
|
|
720x1520 px (HD+)
|
720x1560 px (HD+)
|
Rear Camera
|
|
|
|
13 MP
Primary Camera
|
8 MP
Primary Camera
|
|
2 MP
Depth Camera
|
N/A
|
Front Camera
|
|
|
|
8 MP
|
5 MP
|
Battery
|
|
|
|
4030 mAh
|
4000 mAh
|
|
No Wireless Charging
|
No Wireless Charging
|
Storage
|
32 GB
|
32 GB
|
|
eMMC 5.1
|
eMMC 5.1
|
User Ratings
|
4.4/5
(6,555 ratings)
|
4.3/5
(16,247 ratings)
|
User Feedback
General
Operating System
|
Android v8.1 (Oreo)
|
Android v9.0 (Pie)
|
Custom UI
|
Funtouch OS
|
ColorOS
|
Performance
Performance Rating
|
Good
|
Good
|
Chipset
|
MediaTek Helio P22
|
MediaTek Helio P22
|
Processor
|
Octa core, 2 GHz, Cortex A53
|
Octa core, 2 GHz, Cortex A53
|
Architecture (The higher, the better)
|
64 bit
|
64 bit
|
Fabrication (The lower, the better)
|
12 nm
|
12 nm
|
Graphics (GPU)
|
PowerVR GE8320
|
PowerVR GE8320
|
RAM
|
2 GB / 3 GB
|
2 GB
|
RAM Type
|
LPDDR3
|
LPDDR3
|
Display
Display Rating
|
Excellent
|
Excellent
|
Display Type
|
IPS LCD
|
IPS LCD
|
Screen Size
|
6.22 inches (15.8 cm)
|
6.1 inches (15.49 cm)
|
Resolution
|
720x1520 px (HD+)
|
720x1560 px (HD+)
|
Aspect Ratio
|
19:9
|
19.5:9
|
Pixel Density
|
270 ppi
|
282 ppi
|
Screen to Body Ratio (calculated)
|
82.6 %
|
79.99 %
|
Screen Protection
|
N/A
|
Corning Gorilla Glass v3
|
Bezel-less Display
|
Yes with waterdrop notch
|
Yes with waterdrop notch
|
Screen to Body Ratio (claimed by the brand)
|
88.6 %
|
87.43 %
|
Design
Height
|
155.1 mm
|
154.4 mm
|
Width
|
75 mm
|
73.8 mm
|
Thickness
|
8.2 mm
|
8.4 mm
|
Weight
|
163.5 grams
|
170 grams
|
Build Material
|
Back: Plastic
|
Back: Plastic
|
Rear Camera
Rear Camera Rating
|
Good
|
Good
|
Resolution
|
13 MP
Primary Cameraf/2.2CMOS image sensor |
8 MP
Primary Cameraf/2.23.73 mm focal length CMOS image sensor 1.4µm pixel size |
|
2 MP
f/2.4 Depth Camera |
N/A
|
Autofocus
|
Yes Phase Detection autofocus
|
Yes
|
Flash
|
Yes LED Flash
|
Yes LED Flash
|
Image Resolution
|
4128 x 3096 Pixels
|
3264 x 2448 Pixels
|
Settings
|
Exposure compensation ISO control
|
Exposure compensation
|
Shooting Modes
|
Continuous Shooting
High Dynamic Range mode (HDR) |
Continuous Shooting
High Dynamic Range mode (HDR) |
Camera Features
|
Digital Zoom
Auto Flash Face detection Touch to focus |
Digital Zoom
Auto Flash Face detection Touch to focus |
Video Recording
|
1920x1080 @ 30 fps
|
1920x1080 @ 30 fps
|
Front Camera
Front Camera Rating
|
Good
|
Good
|
Resolution
|
8 MP
f/1.8 Primary Camera |
5 MP
f/2.0 Primary Camera2.639 mm focal length 1/5.0" sensor size 1.12µm pixel size |
Flash
|
Yes Screen flash
|
N/A
|
Battery
Battery Rating
|
Very Good
|
Very Good
|
Capacity
|
4030 mAh
|
4000 mAh
|
Battery Type
|
Li-ion
|
Li-Polymer
|
Storage
Internal Storage
|
32 GB
|
32 GB
|
Storage Type
|
eMMC 5.1
|
eMMC 5.1
|
Expandable Storage
|
Yes Up to 256 GB
|
Yes Up to 256 GB
|
Network & Connectivity
SIM Slot(s)
|
Dual SIM
|
Dual SIM
|
SIM Type
|
SIM1: Nano SIM2: Nano
|
SIM1: Nano SIM2: Nano
|
Network Support
|
5G Not Supported 4G
|
5G Not Supported 4G
|
VoLTE
|
Yes
|
Yes
|
SIM 1
|
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) |
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) |
SIM 2
|
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) |
4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) |
SAR Value
|
Head: 1.283 W/kg Body: 0.609 W/kg
|
Head: 1.323 W/kg Body: 0.922 W/kg
|
Wi-Fi
|
Yes Wi-Fi 4 (802.11 b/g/n)
|
Yes Wi-Fi 4 (802.11 b/g/n)
|
Wi-Fi Features
|
Mobile Hotspot
|
Mobile Hotspot
|
Bluetooth
|
Yes v5.0
|
Yes v4.2
|
GPS
|
Yes with A-GPS Glonass
|
Yes with A-GPS Glonass
|
NFC
|
N/A
|
No
|
Multimedia
Audio Jack
|
3.5 mm
|
3.5 mm
|
Sensors
Fingerprint Sensor
|
Yes
|
No
|
Fingerprint Sensor Position
|
Rear
|
N/A
|
Other Sensors
|
Light sensor Proximity sensor Accelerometer Compass Gyroscope
|
Light sensor Proximity sensor Accelerometer Compass
|