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General

NameXiaomi Redmi S2 (Redmi Y2)Vivo iQOO U1-
ModelRedmi S2 (Redmi Y2) iQOO U1-
PriceTK. 14,990Tk 18,000-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / CDMA / 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 CDMA 800 & TD-SCDMA-
Network 3GHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100-
Network 4GLTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300)1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 34, 38, 39, 40, 41-
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 ratio6.53 inches, 104.7 cm2 (~84.3% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio1080 x 2340 pixels, 19.5:9 ratio (~395 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/1.8, 25mm (wide), 1/2.0-
Secondary Camera16 MP, HDR, LED Flash8MP, f/2.1, (wide)-
Camera FeaturesGeo-tagging, Touch focus, Face detection, Panorama, HDRLED flash, HDR, panorama HDR-
Video[email protected][email protected], [email protected]; gyro-EIS [email protected]-

Body

Body Dimensions160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in)162.1 x 76.6 x 8.5 mm (6.38 x 3.02 x 0.33 in)-
Body Weight170 g (6.00 oz)190 g (6.70 oz)-
Body BuildFront glass, plastic body--
Body ColorGray, Gold, Rose Gold Black, Blue, and White-

Launch

Launch AnnouncementMay, 20182020, July 16-
Launch DateReleased May, 2018Released 2020, July 23-

Platform

Operating SystemAndroid 8.1 (Oreo)Android 10, iQOO UI 1.0-
CPUOcta-core 2.0 GHz Cortex-A53Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)-
GPUAdreno 506Adreno 618-
ChipsetQualcomm MSM8953 Snapdragon 625Qualcomm SM7125 Snapdragon 720G (8 nm)-

Memory

Memory Internal32 GB, 64 GB64GB, 128GB UFS 2.1-
Memory ExternalmicroSD, up to 256 GB (dedicated slot)No-
Ram3 GB, 4 GB 6GB, 8GB-

Battery

Battery TypeNon-removable Li-Po BatteryNon-removable Li-Po-
Battery Capacity3080 mAh 4500 mAh-
Charging-Fast charging 18W-

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 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot-
Bluetooth4.2, A2DP, LE5.0, A2DP, LE, aptX-
USBmicroUSB 2.0microUSB 2.0, USB On-The-Go-
GPSYes, with A-GPS, GLONASS, BDSYes, with A-GPS, GLONASS, BDS, GALILEO-

Features

SensorsFingerprint-rear-mounted, accelerometer, gyro, proximity, compassFingerprint -side-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: Black, Blue, and White-