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General

NameVivo X21iRealme U1-
ModelX21iU1-

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 / 2100-
Network 4GLTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)-
Network SpeedHSPA, LTEHSPA, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M ColorsLTPS IPS LCD capacitive touchscreen, 16M Colors-
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio6.3 inches, 97.4 cm2 (~83.9% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio1080 x 2340 pixels, 19.5:9 ratio (409 ppi density)-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density409 ppi pixel density-
Display Screen Protection-Corning Gorilla Glass 3 - ColorOS 5.2-

Camera

Primary Camera12MP (f/1.8, 1/2.5Dual: 13 MP, f/2.2, AF 2 MP, f/2.4, depth sensor-
Secondary Camera24MP25 MP, f/2.0, 1/2.8`, 0.9µm-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaLED Flash, HDR, Panorama-
Video[email protected][email protected], [email protected]-

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)157 x 74 x 8 mm (6.18 x 2.91 x 0.31 in)-
Body Weight159 g (5.61 oz)168 g (5.93 oz)-
Body ColorBlack, Aurora White, Ruby RedAmbitious Black, Brave Blue, Fiery Gold-

Launch

Launch AnnouncementMay, 2018November, 2018-
Launch DateRelease May 19th, 2018Released December, 2018-

Platform

Operating SystemAndroid 8.1 OreoAndroid 8.1 (Oreo) OS-
GPUMali-G72 MP3Mali-G72 MP3-
ChipsetMediatek MT6771 Helio P60Mediatek Helio P70 (12nm)-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)--

Memory

Memory Internal64GB, 128GB32GB, 64GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)MicroSD, up to 256GB (dedicated slot)-
Ram4GB, 6GB 3GB, 4GB-

Battery

Battery TypeNon-removable Li-Ion BatteryNon-removable Li-Ion-
Battery Capacity3425 mAh 3500 mAh-

Multimedia

Fm RadioYesYes-

Sound

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

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, HotspotWi-Fi 802.11 b/g/n, WiFi Direct, Hotspot-
Bluetooth5.0, A2DP, LE4.2, A2DP, LE-
USBmicroUSB 2.0, USB On-The-GoMicroUSB 2.0, USB On-The-Go-
GPSYes, with A-GPS, GLONASSYes, with A-GPS, GLONASS-

Features

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

Other

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