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General

NameVivo X21iXiaomi Redmi Note 6 Pro-
ModelX21iRedmi Note 6 Pro-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMAGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-
Network 3GHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100-
Network 4GLTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)LTE-
Network SpeedHSPA, LTEHSPA, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M ColorsIPS LCD capacitive touchscreen, 16M Colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio6.26 inches, 97.8 cm2 (~81.1% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio1080 x 2280 pixels, 19:9 ratio-
Display MultitouchYes - Funtouch OS 4.0Yes - MIUI 10-
Display Density402 ppi density403 ppi density-
Display Screen Protection-Corning Gorilla Glass (unspecified version) - MIUI 9-

Camera

Primary Camera12MP (f/1.8, 1/2.5Dual: 12 MP, f/1.9, 1/2.55-
Secondary Camera24MPDual: 20 MP, f/2.0, 0.9µm 2 MP, f/2.2, 1.75µm,
depth sensor
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Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaDual-LED Flash, HDR, Panorama-
Video[email protected][email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)157.9 x 76.4 x 8.3 mm (6.22 x 3.01 x 0.33 in)-
Body Weight159 g (5.61 oz)182 g (6.42 oz)-
Body ColorBlack, Aurora White, Ruby RedBlack, Blue, Rose Gold, Red-

Launch

Launch AnnouncementMay, 2018September, 2018-
Launch DateRelease May 19th, 2018Released October, 2018-

Platform

Operating SystemAndroid 8.1 OreoAndroid 8.1 Oreo-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)Octa-core 1.8 GHz Kryo 260-
GPUMali-G72 MP3Adreno 509-
ChipsetMediatek MT6771 Helio P60Qualcomm SDM636 Snapdragon 636 (14 nm)-

Memory

Memory Internal64GB, 128GB32 GB, 64 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)microSD, up to 256 GB (uses SIM 2 slot)-
Ram4GB, 6GB 3 GB, 4 GB & 6 GB-

Battery

Battery TypeNon-removable Li-Ion BatteryNon-removable Li-Po Battery-
Battery Capacity3425 mAh 4000 mAh -

Multimedia

Fm RadioYesYes with Recording-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, WAV Ringtones-
LoudspeakerYesYes-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micNo - Active noise cancellation with dedicated mic-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, HotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Hotspot-
Bluetooth5.0, A2DP, LE5.0, A2DP, LE-
USBmicroUSB 2.0, USB On-The-GomicroUSB 2.0, USB On-The-Go-
GPSYes, with A-GPS, GLONASSYes, with A-GPS, GLONASS, BDS-

Features

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

Other

Made ByChinaChina-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editorMP4/DivX/H.265 player,
MP3/WAV/eAAC+/FLAC player, Photo/video editor ,
Document viewer,
Charging 2A/5V 10W
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