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General

NameVivo X21iRealme Watch S Pro -
ModelX21iWatch S Pro -
Price-Upcoming-

Network

Network TypeGSM / CDMA / HSPA / LTENo -
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA--
Network 3GHSDPA 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)--
Network SpeedHSPA, LTE--
Network GPRSYes--
Network EDGEYes--

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 ratio1.39 inches-
Display Resolution1080 x 2280 pixels, 19:9 ratio454 x 454 pixels-
Display MultitouchYes - Funtouch OS 4.0No-
Display Density402 ppi density--

Camera

Primary Camera12MP (f/1.8, 1/2.5No-
Secondary Camera24MP--
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panorama--
Video[email protected]--

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)--
Body Weight159 g (5.61 oz)63.5 g -
Body ColorBlack, Aurora White, Ruby RedBlack-
Body Build-Glass front (Gorilla Glass 3), plastic back, plastic frame-

Launch

Launch AnnouncementMay, 2018Not announced yet-
Launch DateRelease May 19th, 2018Rumored-

Platform

Operating SystemAndroid 8.1 OreoNo-
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)--
GPUMali-G72 MP3--
ChipsetMediatek MT6771 Helio P60--

Memory

Memory Internal64GB, 128GBNo-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot)--
Ram4GB, 6GB No-

Battery

Battery TypeNon-removable Li-Ion BatteryNon-removable Li-Po-
Battery Capacity3425 mAh 420 mAh-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV RingtonesNo alert-
LoudspeakerYesNo-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micNo-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, HotspotNo-
Bluetooth5.0, A2DP, LE5.0, A2DP, LE-
USBmicroUSB 2.0, USB On-The-GoNo-
GPSYes, with A-GPS, GLONASSNo-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compassAccelerometer, Gyroscope, Geomagnetic Optical heart rate, Ambient light, Capacitive -
MessagingSMS(threaded view), MMS, Email, Push EmailSMS-
BrowserHTML5No-
JavaNoNo-

Other

Made ByChinaChina-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editorColor: Black-