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General

NameXiaomi Redmi S2 (Redmi Y2)Samsung Galaxy A21s-
ModelRedmi S2 (Redmi Y2)Galaxy A21s-
PriceTK. 14,990Tk 18,000-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA - ChinaGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)-
Network 3GHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100-
Network 4GLTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300)LTE (unspecified)-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeIPS LCD capacitive touchscreen, 16M ColorsSuper AMOLED capacitive touchscreen, 16M colors-
Display Size5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio720 x 1600 pixels, 20:9 ratio (~270 ppi density)-
Display MultitouchYes - MIUI 9.5Yes-
Display Density269 ppi density--

Camera

Primary CameraDual: 12 MP (f/2.2, 1.25μm, PDAF) + 5 MP, gyro-EIS, phase detection autofocus, LED Flash48MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
8MP, f/2.2, (ultrawide), 1/4.0", 1.12µm
2MP, f/2.4, (macro)
2MP, f/2.4, (depth)
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Secondary Camera16 MP, HDR, LED Flash13MP, f/2.2, (wide), 1/3.1-
Camera FeaturesGeo-tagging, Touch focus, Face detection, Panorama, HDRLED flash, panorama, HDR-
Video[email protected][email protected] [email protected]-

Body

Body Dimensions160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in)163.6 x 75.3 x 8.9 mm (6.44 x 2.96 x 0.35 in)-
Body Weight170 g (6.00 oz)192 g (6.77 oz)-
Body BuildFront glass, plastic body--
Body ColorGray, Gold, Rose GoldBlack, White, Blue, Red-

Launch

Launch AnnouncementMay, 2018May 15, 2020-
Launch DateReleased May, 2018Released June 02, 2020-

Platform

Operating SystemAndroid 8.1 (Oreo)Android 10, One UI 2.0-
CPUOcta-core 2.0 GHz Cortex-A53Octa-core (4x2.0 GHz & 4x2.0 GHz)-
GPUAdreno 506--
ChipsetQualcomm MSM8953 Snapdragon 625Exynos 850-

Memory

Memory Internal32 GB, 64 GB32GB, 64GB eMMC 5.1-
Memory ExternalmicroSD, up to 256 GB (dedicated slot)microSDXC-
Ram3 GB, 4 GB 3GB, 4GB, 6GB RAM-

Battery

Battery TypeNon-removable Li-Po BatteryNon-removable Li-Po-
Battery Capacity3080 mAh 5000 mAh-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, WAV ringtones-
LoudspeakerYesYes-
3.5mm JackYes - Active noise cancellation with dedicated micYes-

Connectivity

WiFiWi-Fi 802.11 b/g/n, WiFi Direct, HotspotWi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot-
Bluetooth4.2, A2DP, LE5.0, A2DP, LE-
USBmicroUSB 2.0Yes-
GPSYes, with A-GPS, GLONASS, BDSYes, with A-GPS-

Features

SensorsFingerprint-rear-mounted, accelerometer, gyro, proximity, compassFingerprint rear-mounted, accelerometer, proximity-
MessagingSMS(threaded view), MMS, Email, Push Email, IMSMS(threaded view), MMS, Email, IM-
BrowserHTML5HTML5-
JavaNoNo-

Other

Made ByChinaKorea-
Other FeaturesMP4/H.265 player, MP3/WAV/eAAC+/FLAC player, Photo/video editor Document viewer 5V/2A 10W chargingFast charging 15W-