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General

NameXiaomi Redmi S2 (Redmi Y2)Vivo Y21A -
ModelRedmi S2 (Redmi Y2)Y21A -
PriceTK. 14,990Upcoming-

Network

Network TypeGSM / CDMA / HSPA / LTE GSM / HSPA / LTE -
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA - China GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -
Network 3GHSDPA 850 / 900 / 1900 / 2100 HSDPA 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) 1, 3, 5, 8, 38, 40, 41 -
Network SpeedHSPA, LTE--
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeIPS LCD capacitive touchscreen, 16M Colors IPS LCD -
Display Size5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio 6.51 inches, 102.3 cm2 -
Display Resolution720 x 1440 pixels, 18:9 ratio 720 x 1600 pixels, 20:9 ratio -
Display MultitouchYes - MIUI 9.5Yes-
Display Density269 ppi density ~270 ppi density -

Camera

Primary CameraDual: 12 MP (f/2.2, 1.25μm, PDAF) + 5 MP, gyro-EIS, phase detection autofocus, LED Flash13MP
2MP
2MP
-
Secondary Camera16 MP, HDR, LED Flash8MP -
Camera FeaturesGeo-tagging, Touch focus, Face detection, Panorama, HDR HDR, panorama -
Video[email protected] 1080p @30fps, 1920×1080 pixels -

Body

Body Dimensions160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in) 164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in) -
Body Weight170 g (6.00 oz) 192 g (6.77 oz) -
Body BuildFront glass, plastic body Glass front, plastic back, plastic frame -
Body ColorGray, Gold, Rose Gold Dawn White, Nebula Blue -

Launch

Launch AnnouncementMay, 2018 Not announced -
Launch DateReleased May, 2018 Exp. December 2021 -

Platform

Operating SystemAndroid 8.1 (Oreo) Android 10, Funtouch 11 -
CPUOcta-core 2.0 GHz Cortex-A53 Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53) -
GPUAdreno 506 Adreno 505 -
ChipsetQualcomm MSM8953 Snapdragon 625 Qualcomm SDM439 Snapdragon 439 (12 nm) -

Memory

Memory Internal32 GB, 64 GB64GB ROM-
Memory ExternalmicroSD, up to 256 GB (dedicated slot) microSDXC (dedicated slot) -
Ram3 GB, 4 GB 3GB RAM-

Battery

Battery TypeNon-removable Li-Po Battery Li-Poly (Lithium Polymer) -
Battery Capacity3080 mAh 5000 mAh -
Charging- Fast charging 10W -

Multimedia

Fm RadioYesYes-

Sound

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

Connectivity

WiFiWi-Fi 802.11 b/g/n, WiFi Direct, Hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot -
Bluetooth4.2, A2DP, LE 4.2, A2DP, LE -
USBmicroUSB 2.0 microUSB 2.0, USB On-The-Go -
GPSYes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS -

Features

SensorsFingerprint-rear-mounted, accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, proximity -
MessagingSMS(threaded view), MMS, Email, Push Email, IM SMS(threaded view), MMS, Email, IM -
BrowserHTML5 HTML5 -
JavaNoNo-

Other

Made ByChinaChina-
Other FeaturesMP4/H.265 player, MP3/WAV/eAAC+/FLAC player, Photo/video editor Document viewer 5V/2A 10W charging Fingerprint Sensor Position:rear-