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oppo r15
vivo y78t

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Brand
 oppo vivo
Model
 oppo r15 vivo y78t
Announced
 2018 March 2023 October 20
Status
 Available. Released 2018 April Available. Released 2023 October 24
Device Body
 glass front | plastic frame | plastic back
Dimensions
 155.1 x 75.2 x 7.4 mm ( 6.11 x 2.96 x 0.29 in ) 164.6 x 75.8 x 9.1 mm ( 6.48 x 2.98 x 0.36 in )
Weight in gram
 175 199.6
SIM card
 Hybrid dual SIM ( Nano-SIM | dual stand-by ) dual SIM ( Nano-SIM | dual stand-by )
Water Resistance
 No
Display type
 AMOLED IPS LCD | 120hz
Display resolution
 1080 x 2280 pixels | 19 : 9 ratio ( ~401 pixel per inch density ) 1080 x 2388 pixels ( ~395 pixel per inch density )
Display size
 6.28 inches | 98.9 cm2 ( ~84.8% screen to body ratio ) 6.64 inches | 106.8 cm2 ( ~85.6% screen to body ratio )
Display Protection
Operating System
 android 8.1 ( oreo ) | coloros 5 android 13 | originos 3
CPU
 Octa-core ( 4x2.0 GHz cortex-a73 & 4x2.0 GHz cortex-a53 ) Octa-core ( 4x2.2 GHz cortex-a78 & 4x1.8 GHz cortex-a55 )
Chipset
 mediatek mt6771 helio p60 ( 12 nm ) Qualcomm sm6450 snapdragon 6 generation 1 ( 4 nm )
GPU
 mali-g72 mp3 adreno 710
Memory card
 microsdxc ( uses shared sim slot ) No
Memory v1
 128gb 4gb RAM 128gb 8gb RAM
Memory v2
 128gb 8gb RAM 256gb 8gb RAM | 256gb 12gb RAM
Primary camera
16 megapixel| lens aperture1.7 | 1/2.6" | 1.22µm | phase detection autofocus
5 megapixel| lens aperture2.2 | ( depth )
50 megapixel| lens aperture1.8 | ( wide ) | phase detection autofocus
2 megapixel| lens aperture2.4 | ( depth )
Secondary camera
20 megapixel| lens aperture2.0 | ( wide ) | 1/2.8" | 1.0µm
8 megapixel| lens aperture2.0 | ( wide )
Loud speaker
 Yes Yes
Audio jack
 Yes Yes
WLAN
 Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct
Bluetooth
 4.2 | a2dp | le | edr 5.1.0 | a2dp | le | aptx hd | aptx adaptive
GPS
 Yes with a-gps glonass
NFC
 No No
Radio
 No No
USB
 microusb 2.0 | USB on-the-go USB Type-C 2.0 | otg
Sensors
 fingerprint ( rear-mounted ) | accelerometer | gyroscope | proximity | compass fingerprint ( side-mounted ) | accelerometer | gyroscope | proximity | compass
Battery
 li-po 3450 mAh | Non-removable 6000 mAh | Non-removable
Battery Charge
 44w wired
Colors
 red color gradations, white color gradations, purple color gradations, pink color gradations black, blue, silver
Network technology
 gsm / cdma / hspa / lte gsm / cdma / hspa / cdma2000 / lte / 5g
5G bands
 1 | 3 | 5 | 8 | 28 | 38 | 40 | 41 | 77 | 78 sa/nsa
Network speed
 hspa 42.2/5.76 mbps lte-a (2ca) cat13 600/100 mbps hspa lte 5g
GPRS
EDGE
Approx price
  • 390 GBP
  • 468 EUR
  • 4550 NOK
  • 4800 SEK
  • 29400 RUB
  • 470 USD
  • 2470 BRL
  • 680 AUD
  • 620000 KRW
  • 63000 JPY
  • 650 SGD
  • 2090 MYR
  • 1720 AED
  • 7900 ZAR
  • 170 GBP
  • 210 EUR
  • 1980 NOK
  • 2100 SEK
  • 12800 RUB
  • 210 USD
  • 1080 BRL
  • 300 AUD
  • 270000 KRW
  • 28000 JPY
  • 280 SGD
  • 910 MYR
  • 750 AED
  • 3500 ZAR