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vivo y81i
vivo nex a

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Brand
 vivo vivo
Model
 vivo y81i vivo nex a
Announced
 2018 October 2018 June
Status
 Available. Released 2018 November Available. Released 2018 June
Device Body
Dimensions
 155.1 x 75 x 7.8 mm ( 6.11 x 2.95 x 0.31 in ) 162 x 77 x 8 mm ( 6.38 x 3.03 x 0.31 in )
Weight in gram
 143 199
SIM card
 dual SIM ( Nano-SIM | dual stand-by ) dual SIM ( Nano-SIM | dual stand-by )
Water Resistance
Display type
 IPS LCD Super AMOLED
Display resolution
 720 x 1520 pixels | 19 : 9 ratio ( ~270 pixel per inch density ) 1080 x 2316 pixels ( ~388 pixel per inch density )
Display size
 6.22 inches | 96.6 cm2 ( ~83.0% screen to body ratio ) 6.59 inches | 107.3 cm2 ( ~86.0% screen to body ratio )
Display Protection
Operating System
 android 8.1 ( oreo ) | funtouch 4 android 9.0 ( pie ) | funtouch 9
CPU
 Quad-core 2.0 GHz cortex-a53 Octa-core ( 2x2.2 GHz 360 gold & 6x1.7 GHz kryo 360 silver )
Chipset
 mediatek mt6761 helio a22 ( 12 nm ) Qualcomm sdm710 snapdragon 710 ( 10 nm )
GPU
 powervr ge8320 adreno 616
Memory card
 microsdxc ( dedicated slot ) No
Memory v1
 16gb 2gb RAM 128gb 6gb RAM
Memory v2
Primary camera
13 megapixel| lens aperture2.2 | phase detection autofocus
12 megapixel| lens aperture1.8 | 1/2.55" | 1.4µm | Dual Pixel phase detection autofocus | 4-axis OIS
5 megapixel| lens aperture2.4 | ( depth )
Secondary camera
5 megapixel| lens aperture2.2
Motorized pop-up 8 megapixel| lens aperture2.0
Loud speaker
 Yes Yes
Audio jack
 Yes Yes
WLAN
 Wi-Fi 802.11 b/g/n | Wi-Fi Direct | hotspot Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot
Bluetooth
 5.0 | a2dp | le 5.0 | a2dp | le
GPS
 Yes with a-gps glonass bds Yes with a-gps bds gnss
NFC
 No No
Radio
 FM Radio No
USB
 microusb 2.0 | USB on-the-go USB Type-C 2.0 | USB on-the-go
Sensors
 accelerometer | proximity | compass fingerprint ( rear-mounted ) | accelerometer | gyroscope | proximity | compass
Battery
 li-po 3260 mAh | Non-removable Li-lon 4000 mAh | Non-removable
Battery Charge
Colors
 black, red black, red
Network technology
 gsm / hspa / lte gsm / cdma / hspa / lte
5G bands
Network speed
 hspa 21.1/5.76 mbps lte-a (2ca) cat7 300/150 mbps hspa 42.2/5.76 mbps lte-a cat15 800/150 mbps
GPRS
EDGE
Approx price
  • 110 GBP
  • 132 EUR
  • 1290 NOK
  • 1400 SEK
  • 8300 RUB
  • 140 USD
  • 700 BRL
  • 190 AUD
  • 180000 KRW
  • 18000 JPY
  • 190 SGD
  • 590 MYR
  • 490 AED
  • 2300 ZAR
  • 510 GBP
  • 610 EUR
  • 5930 NOK
  • 6300 SEK
  • 38300 RUB
  • 610 USD
  • 3220 BRL
  • 880 AUD
  • 800000 KRW
  • 82000 JPY
  • 850 SGD
  • 2720 MYR
  • 2240 AED
  • 10300 ZAR