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General

NameXiaomi Redmi S2 (Redmi Y2)Vivo X51 Pro Plus-
ModelRedmi S2 (Redmi Y2)X51 Pro Plus-
PriceTK. 14,990Upcoming-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE / 5G-
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 / 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, 26, 34, 38, 39, 40, 41-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A, 5G-
Network GPRSYesYes-
Network EDGEYesYes-
Network 5G-1, 3, 41, 77, 78, 79 SA/NSA-

Display

Display TypeIPS LCD capacitive touchscreen, 16M ColorsAMOLED Display-
Display Size5.99 inches, 92.6 cm2 (~74.5% screen-to-body ratio6.56 inches, (~90.6% screen-to-body ratio)-
Display Resolution720 x 1440 pixels, 18:9 ratio1080 x 2376 pixels-
Display MultitouchYes - MIUI 9.5--
Display Density269 ppi density398 ppi density-

Camera

Primary CameraDual: 12 MP (f/2.2, 1.25μm, PDAF) + 5 MP, gyro-EIS, phase detection autofocus, LED Flash50MP
13MP
32MP
13MP
-
Secondary Camera16 MP, HDR, LED Flash32MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, Panorama, HDRHDR, panorama-
Video[email protected]2160p @30fps, 3840×2160 pixels-

Body

Body Dimensions160.7 x 77.3 x 8.1 mm (6.33 x 3.04 x 0.32 in)158.5 x 73 x 8.8 mm (6.24 x 2.87 x 0.35 in)-
Body Weight170 g (6.00 oz)192.2 g (6.77 oz)-
Body BuildFront glass, plastic bodyGlass front, eco leather back or glass back, aluminum frame-
Body ColorGray, Gold, Rose GoldBlue, Brown-

Launch

Launch AnnouncementMay, 2018Not announced-
Launch DateReleased May, 2018March 2021-

Platform

Operating SystemAndroid 8.1 (Oreo)Android 11-
CPUOcta-core 2.0 GHz Cortex-A53Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)-
GPUAdreno 506Adreno 650-
ChipsetQualcomm MSM8953 Snapdragon 625Qualcomm SM8250 Snapdragon 865 (7 nm+)-

Memory

Memory Internal32 GB, 64 GB256GB -
Memory ExternalmicroSD, up to 256 GB (dedicated slot)No-
Ram3 GB, 4 GB 8GB -

Battery

Battery TypeNon-removable Li-Po BatteryLi-Poly (Lithium Polymer)-
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 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot-
Bluetooth4.2, A2DP, LE5.1, A2DP, LE, aptX HD-
USBmicroUSB 2.0Type-C 1.0 reversible connector, USB On-The-Go-
GPSYes, with A-GPS, GLONASS, BDSYes, with dual-band A-GPS, GLONASS, BDS, GALILEO-

Features

SensorsFingerprint-rear-mounted, accelerometer, gyro, proximity, compassFingerprint under display, optical, accelerometer, gyro, proximity, compass, color spectrum-
MessagingSMS(threaded view), MMS, Email, Push Email, IMSMS(threaded view), MMS, Email, Push 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 charging--