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General

NameXiaomi Redmi S2 (Redmi Y2)Vivo S1-
ModelRedmi S2 (Redmi Y2)S1-
PriceTK. 14,990Tk 21,990-

Network

Network TypeGSM / CDMA / HSPA / LTE GSM / 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 / 2100 HSDPA 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)LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)-
Network SpeedHSPA, LTEHSPA, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeIPS LCD capacitive touchscreen, 16M Colors IPS LCD capacitive touchscreen, 16M Colors -
Display Size5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio 6.53 inches, 104.7 cm2 (~85.0% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio 1080 x 2340 pixels, 19.5:9 ratio-
Display MultitouchYes - MIUI 9.5Yes-
Display Density269 ppi density 395 ppi density-

Camera

Primary CameraDual: 12 MP (f/2.2, 1.25μm, PDAF) + 5 MP, gyro-EIS, phase detection autofocus, LED Flash12MP, f/1.8, PDAF
8MP, f/2.2, (wide)
5MP, f/2.4, Depth sensor
-
Secondary Camera16 MP, HDR, LED Flash Motorized pop-up 25MP, f/2.0-
Camera FeaturesGeo-tagging, Touch focus, Face detection, Panorama, HDRLED Flash, HDR, Panorama-
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)162 x 76 x 8.5 mm (6.38 x 2.99 x 0.33 in)-
Body Weight170 g (6.00 oz) 189.5 g-
Body BuildFront glass, plastic bodyInfo. not available-
Body ColorGray, Gold, Rose Gold Blue, Pink-

Launch

Launch AnnouncementMay, 2018March, 2019-
Launch DateReleased May, 2018Released April, 2019-

Platform

Operating SystemAndroid 8.1 (Oreo) Android 9.0 (Pie)-
CPUOcta-core 2.0 GHz Cortex-A53 Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)-
GPUAdreno 506 Mali-G72 MP3-
ChipsetQualcomm MSM8953 Snapdragon 625 Mediatek Helio P70-

Memory

Memory Internal32 GB, 64 GB 128GB-
Memory ExternalmicroSD, up to 256 GB (dedicated slot) microSD, up to 256GB-
Ram3 GB, 4 GB 4GB, 6GB-

Battery

Battery TypeNon-removable Li-Po Battery Non-removable Li-Po Battery -
Battery Capacity3080 mAh 3940 mAh Battery-

Multimedia

Fm RadioYes Yes-

Sound

AudioVibration, MP3, WAV Ringtones Vibration, MP3, WAV Ringtones-
LoudspeakerYes Yes-
3.5mm JackYes - Active noise cancellation with dedicated micYes - Active noise cancellation with dedicated mic-

Connectivity

WiFiWi-Fi 802.11 b/g/n, WiFi Direct, Hotspot Yes-
Bluetooth4.2, A2DP, LE Yes-
USBmicroUSB 2.0 microUSB 2.0-
GPSYes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS-

Features

SensorsFingerprint-rear-mounted, accelerometer, gyro, proximity, compass Fingerprint -rear-mounted, accelerometer, proximity, compass-
MessagingSMS(threaded view), MMS, Email, Push Email, IM SMS(threaded view), MMS, Email-
BrowserHTML5HTML5-
JavaNo No-

Other

Made ByChina China-
Other FeaturesMP4/H.265 player, MP3/WAV/eAAC+/FLAC player, Photo/video editor Document viewer 5V/2A 10W charging Fast battery charging 18W-