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General

NameXiaomi Redmi S2 (Redmi Y2)Infinix Smart 4-
ModelRedmi S2 (Redmi Y2)Smart 4-
PriceTK. 14,990Tk 8,490-

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-
Network 3GHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 2100-
Network 4GLTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300)LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeIPS LCD capacitive touchscreen, 16M ColorsIPS LCD capacitive touchscreen, 16M colors-
Display Size5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio6.6 inches, 105.2 cm2 (~83.5% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio720 x 1600 pixels, 20:9 ratio (~266 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 Flash8MP-
Secondary Camera16 MP, HDR, LED Flash5MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, Panorama, HDRDual-LED flash-
Video[email protected][email protected]-

Body

Body Dimensions160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in)167 x 76 x 8.3 mm (6.57 x 2.99 x 0.33 in)-
Body Weight170 g (6.00 oz)183 g (6.46 oz)-
Body BuildFront glass, plastic body--
Body ColorGray, Gold, Rose GoldMidnight Black, Quetzal Cyan, Cosmic Purple-

Launch

Launch AnnouncementMay, 2018October, 2019-
Launch DateReleased May, 2018Released October, 2019-

Platform

Operating SystemAndroid 8.1 (Oreo)Android 9.0 (Pie)-
CPUOcta-core 2.0 GHz Cortex-A53Quad-core 2.0 GHz Cortex-A53-
GPUAdreno 506PowerVR GE8320-
ChipsetQualcomm MSM8953 Snapdragon 625Mediatek MT6761 Helio A22 (12 nm)-

Memory

Memory Internal32 GB, 64 GB16GB, 32GB-
Memory ExternalmicroSD, up to 256 GB (dedicated slot)microSD, up to 128GB (dedicated slot)-
Ram3 GB, 4 GB 1GB, 2GB-

Battery

Battery TypeNon-removable Li-Po BatteryNon-removable Li-Po-
Battery Capacity3080 mAh 4000 mAh-

Multimedia

Fm RadioYesYes-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, 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 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot-
Bluetooth4.2, A2DP, LE4.2, A2DP, LE-
USBmicroUSB 2.0microUSB 2.0-
GPSYes, with A-GPS, GLONASS, BDSYes, with A-GPS, GLONASS, BDS-

Features

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

Other

Made ByChinaChina-
Other FeaturesMP4/H.265 player, MP3/WAV/eAAC+/FLAC player, Photo/video editor Document viewer 5V/2A 10W chargingColor: Midnight Black, Quetzal Cyan, Cosmic Purple-