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 Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260) For a full phone specs check the table with technical specifications, video review, opinions and comparisons.



Technical specifications

Screen
Technology Super AMOLED
Touchscreen capacitive touchscreen
Display colors 16M
Screen size 6.28" inc
Screen area 98.4 cm2
Screen format 19:9 (height:width)
Screen to body ratio85.2%
Screen resolution 1080 x 2280 px
PPI /points per inch/ 402
Camera and Video
Rear camera, main 12 MP, Dual
Camera specs
-12 MP, f/1.8, 1/2.55'', 1.4µm, dual pixel PDAF
-5 MP, f/2.4, depth sensor
Functions LED flash, HDR, panorama
Video 1080p@30fps
Front camera, selfie 12 MP, Single
Specifications 12 MP, f/2.0
Video 1080p@30fps

Performance
Operating system OS Android 8.1 (Oreo); Funtouch 4
Chipset - Qualcomm SDM660 Snapdragon 660 (14 nm)
Processor CPU
- Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU - Adreno 512
External memory microSD, up to 256 GB (uses SIM 2 slot)
Internal memory 64/128 GB, 6 GB RAM
Antutu score143205
General specs
Release date 2018, March
Dimensions (HxWxD) 154.5 Х 74.8 Х 7.4 mm
Weight (g) 156.2 g
Body build Front glass, aluminum body
Colors Black, Aurora White, Ruby Red
Battery 3200 mAh,  Non-removable Li-Ion
Approximate price450 EUR
Communication and Connectivity
SIM card Hybrid Dual SIM (Nano-SIM, dual stand-by)
Network GSM / CDMA / HSPA / LTE
-2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 
CDMA 800 & TD-SCDMA
-3G - HSDPA 850 / 900 / 1900 / 2100
-4G - LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
Speed HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
GPRS Yes
Edge Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
GPS Yes, with A-GPS, GLONASS
NFC
USB microUSB 2.0, USB On-The-Go
Bluetooth 5.0, A2DP, LE
Music and Audio
Radio FM radio
Headphone jack Yes
Others
- 32-bit/192kHz audio
-Active noise cancellation with dedicated mic
Other features
- Sensors - Fingerprint (rear-mounted), accelerometer, proximity, compass
- Fast battery charging

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