Vivo X21 UD A Specs and Features
Basic
Availability
Available. Released 2018, March
OS
Android 8.1 (Oreo); Funtouch 4
SIM
Hybrid Dual SIM (Nano-SIM, dual stand-by)
Network
2G
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
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)
CDMA
GSM / CDMA / HSPA / LTE
Speed
HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
Body
Dimensions
154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in)
Material
Front glass, aluminum body
Display
Type
Super AMOLED capacitive touchscreen, 16M colors
Resolution
1080 x 2280 pixels, 19:9 ratio (~402 ppi density)
Protection
Corning Gorilla Glass 3
Camera
Memory
Card Slot
microSD, up to 256 GB (uses shared SIM slot)
Hardware
Chipset
Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU
Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Sensors
Fingerprint
Yes, (under display, optical)
Comms
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
USB
microUSB 2.0, USB On-The-Go
Audio
3.5mm Jack 32-bit/192kHz audio Active noise cancellation with dedicated mic
Battery
Type
Non Removeable Li-ion Battery
Fast Charger
Fast battery charging 18W
Others
Others Features
MP4/DviX/XviD/H.265/WMV player - MP3/WAV/FLAC/eAAC+/WMA player - Photo/video editor - Document editor - 32-bit/192kHz audio - 24-bit/192kHz audio recording - Active noise cancellation with dedicated mic