visual : vivo Y81i Vs Oppo A1k
vivo Y81i
Oppo A1k
Software
os
Android 8.1 (Oreo); Funtouch 4
Android v9.0 (Pie)
Hardware
Memory
RAM
2 GB
2 GB
ROM
16 GB
32 GB
expandable
256 GB
256 GB
Processor
CPU
Quad-core 2.0 GHz Cortex-A53
4xCortex-A53, 2.0GHz & 4xCortex-A53, 1.5GHz
GPU
PowerVR GE8320
PowerVR GE8320
SoC
Mediatek MT6761 Helio A22 (12 nm)
MediaTek Helio P22
number of cores
4core
8core
Camera
primary
13 MP, f/2.2, PDAF, LED flash, HDR, panorama, Video: 1080p@30fps
8MP Auto Focus rear camera with LED Flash
secondary
5 MP, f/2.2
5MP front camera
Battery
capacity
3260mAh
4000mAh
type
Non-removable Li-Po battery
Non-removable Li-Po
Design
dimension
155.1 x 75 x 7.8 mm (6.11 x 2.95 x 0.31 in)
154.4 x 73.8 x 8.4 mm
display
IPS LCD capacitive touchscreen, 16M colors, 720 x 1520 pixels, 19:9 ratio (~270 ppi density)
IPS LCD 1560x720, 282 PPI, 19:9 aspect ratio, 16M colors
screen
6.22"
6.1"
weight
143 gm
170 gm
Connectivity
USB
microUSB 2.0, USB On-The-Go
microUSB 2.0
bluetooth
5.0, A2DP, LE
V4.2
internet
2G/3G/4G
2G, 3G, 4G
wifi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
802.11 b/g/n, WiFi Direct, Hotspot
Audio
radio
FM radio
FM Radio
Others
general
Dual SIM (Nano-SIM, dual stand-by), 3.5mm jack, Active noise cancellation with dedicated mic
Dual SIM
sensors
Accelerometer, proximity, compass
P-Sensor, L-Sensor, Accelerometer, Gyroscope, Geomagnetic Sensor