vivo X21 Specs, review, opinions, comparisons

vivo X21 Specs, review, opinions, comparisons
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vivo X21 is smartphone from 2018 year with weight of 156.2 grams and size 154.5 x 74.8 x 7.4 mm. It has a screen of 6.28 inches, camera 12 MP and memory 64/128 GB, 6 GB RAM. Its processor is Quad-core, Kryo, 2200MHz + Quad-core, Kryo, 1800MHz. For a full phone specs check the table with technical specifications, video review, opinions and comparisons.



Technical specifications

Screen
TypeSuper AMOLED
Touchscreencapacitive touchscreen
Display colors16M
Screen size6.28" inc
Screen resolution1080 x 2280 px
PPI /points per inch/402
Other specifications Multitouch
Yes - Funtouch OS 4.0
Camera and Video
Main camera megapixels 12 MP
Camera specsDual: 12 MP (f/1.8, 1/2.5'', 1.4 µm, Dual Pixel PDAF) + 5 MP (f/2.4),
Camera resolution
FlashLED flash
Video1080p@30fps
Front camera, selfie12 MP, f/2.0, 1080p

Performance
Operating system (OS)Android 8.1 (Oreo)
Processor 1 (CPU)2200 MHz, Quad-core, Kryo
Processor 2 (CPU)1800 MHz, Quad-core, Kryo
Graphics processor (GPU)Adreno 512
External memorymicroSD, up to 256 GB (uses SIM 2 slot)
Internal memory64/128 GB, 6 GB RAM
General specs
Release date 2018
Network
GSM / CDMA / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 
CDMA 800 & TD-SCDMA
3G bands
HSDPA 850 / 900 / 1900 / 2100
4G bands
LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
Battery3200 mAh,  Non-removable Li-Ion
Battery life
Dimensions (HxWxD) 154.5 Х 74.8 Х 7.4 mm
Weight (g)156.2 g
SIM cardHybrid Dual SIM (Nano-SIM, dual stand-by)
Body Formstandart
Keyboardno
Communication and Connectivity
Wi-FiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
GPSYes, with A-GPS, GLONASS
NFC
USBmicroUSB 2.0, USB On-The-Go
Bluetooth5.0, A2DP, LE
GPRSYes
Music and Audio
RadioFM radio
Audio jackYes
Other features
 - Fast battery charging
- MP4/H.264 player
- MP3/WAV/eAAC+/FLAC player
- Document viewer
- Photo/video editor
- Geo-tagging, touch focus, face detection, HDR, panorama
- Fingerprint (rear-mounted), accelerometer, proximity, compass

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vivo X21 - comments and opinions

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