Helio S2

Xiaomi Redmi 9

os

Android M OS 6.0

Android 10, MIUI 12

RAM

3 GB

4 GB

ROM

32 GB

64 GB

expandable

microSDXC (dedicated slot) GB

CPU

Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)

GPU

Mali-T720MP3

Mali-G52 MC2

SoC

MT6753

Mediatek Helio G80 (12 nm)

number of cores

8core

8core

speed

64bit Cortex-A53 1.3GHz

featurues

HDR

primary

13 MP AF

Quad:
13 MP, f/2.2, 28mm (wide), 1/3.1", 1.12m, PDAF
8 MP, f/2.2, 118 (ultrawide), 1/4.0", 1.12m
5 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)

secondary

8 MP AF

8 MP, f/2.0, 27mm (wide)

video

1080p@30fps

Stand By

Talk Time

capacity

3150mAh

5020mAh

charging

Fast charging 18W

type

Li-Po

Li-Polymer (non-removable)

Display

IPS LCD 1080x1920 pixels (~401 ppi pixel density)

IPS LCD capacitive touchscreen, 16M colors

Weight

198 gm

build

Glass front (Gorilla Glass 3), plastic back, plastic frame

color

Carbon Gray, Ocean Green, Blue

dimension

163.3 x 77 x 9.1 mm

resolution

1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)

screen

5.5"

6.53"

USB

v2.0

2.0, Type-C 1.0 reversible connector, USB On-The-Go

bluetooth

v2.0

5.0, A2DP, LE

internet

GSM / HSPA / LTE

wifi

802.11 b/g/n

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

radio

Wireless FM radio (no wired headphones required)

sensors

G-Sensor, Accelerometer, Proximity Sensor, Light Sensor, Compass, Hall, Biometric

Fingerprint (rear-mounted), accelerometer, proximity, compass