vivo Y81i

Symphony Z15

os

Android 8.1 (Oreo); Funtouch 4

Android 9.0 (Pie)

RAM

2 GB

2 GB

ROM

16 GB

32 GB

expandable

256 GB

128 GB

CPU

Quad-core 2.0 GHz Cortex-A53

1.6GHz Octa core

GPU

PowerVR GE8320

IMG 8322

SoC

Mediatek MT6761 Helio A22 (12 nm)

number of cores

4core

8core

primary

13 MP, f/2.2, PDAF, LED flash, HDR, panorama, Video: 1080p@30fps

13MP AF + 2MP FF Dual Rear Camera, LED flash, HDR, panorama, Video 1080p@30fps

secondary

5 MP, f/2.2

5 MP FF

capacity

3260mAh

4000mAh

type

Non-removable Li-Po battery

Li-Polymer (non-removable)

dimension

155.1 x 75 x 7.8 mm (6.11 x 2.95 x 0.31 in)

155.5 x 73 x 8.7mm (6.12 x 2.87 x 0.34 in)

display

IPS LCD capacitive touchscreen, 16M colors, 720 x 1520 pixels, 19:9 ratio (~270 ppi density)

IPS LCD capacitive touchscreen, 16M colors, HD+ IPS Water Drop Notch Display, 720 x 1440 pixels, 18:9 ratio (~295 ppi density)

screen

6.22"

6.09"

weight

143 gm

162 gm

USB

microUSB 2.0, USB On-The-Go

microUSB 2.0

bluetooth

5.0, A2DP, LE

4.2, A2DP, LE

internet

2G/3G/4G

2G/3G/4G/LTE

wifi

Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot

Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot

radio

FM radio

FM Radio

general

Dual SIM (Nano-SIM, dual stand-by), 3.5mm jack, Active noise cancellation with dedicated mic

Dual SIM (Nano-SIM, dual stand-by), Face Unlock (0.7s), Dual Back Camera, Water Drop Notch Display, AI Camera, Smart Control, Big Battery, MTC Back Cover, One Hand Mode

sensors

Accelerometer, proximity, compass

Fingerprint, Accelerometer, proximity, Multi Functioning Fingerprint Sensor