Samsung I9100 Galaxy S II

Xiaomi Redmi K20 Pro

browser

java

Yes

os

Android 4.1 (Jelly Bean)

Android 9.0 (Pie); MIUI 10

RAM

1 GB

8 GB

ROM

16 GB

256 GB

expandable

32 GB

CPU

Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)

GPU

Mali-400MP4

Adreno 640

SoC

Exynos 4210 Dual

Qualcomm SDM855 Snapdragon 855 (7 nm)

number of cores

2core

8core

speed

1.2 GHz Cortex-A9

features

Dual-LED flash, HDR, panorama

primary

8 MP AF

Triple:
48 MP, f/1.8, 26mm (wide), 1/2", 0.8m, PDAF/Laser AF
8 MP, f/2.4, 53mm (telephoto), 1/4", 1.12m, PDAF/Laser AF, 2x optical zoom
13 MP, f/2.4, 12mm (ultrawide), 1/3", 1.12m

secondary

2 MP

Motorized pop-up 20 MP, f/2.2, 0.8m

video

2160p@30/60fps, 1080p@30/120/240fps, 1080p@960fps

Stand By

710 Hour(2G), 610 Hour(3G)

Talk Time

18.3 Hour(2G), 8.6 Hour(3G)

capacity

1650mAh

4000mAh

type

Li-Ion

Li-Polymer (non-removable)

Display

Super AMOLED Plus 480 x 800 pixels (~217 ppi pixel density)

Super AMOLED capacitive touchscreen, 16M colors, 100.2 cm2 (~86.1% screen-to-body ratio)

Weight

116 gm

191 gm

dimension

156.7 x 74.3 x 8.8 mm

protection

Corning Gorilla Glass 5

resolution

1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)

screen

4.3"

6.39"

USB

v2.0 microUSB

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

bluetooth

v3.0+HS

5.0, A2DP, LE, aptX HD

internet

2G/3G/4G/LTE

wifi

802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot

Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot

radio

FM Radio

General

Facebook, Picasa, Twitter, Caller groups, Multiple numbers per contact, Search by both first and last name, Picture ID, Ring ID, Calculator, World Clock, Stopwatch, Countdown timer, Memo

Dual SIM (Nano-SIM, dual stand-by)

sensors

Accelerometer, gyro, proximity, compass, GPS, A-GPS

Fingerprint (under display), accelerometer, gyro, proximity, compass