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xiaomi mi watch
alcatel 1s
vivo y90
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Brand
 xiaomi alcatel vivo
Model
 xiaomi mi Watch alcatel 1s vivo y90
Announced
 2020 September 30 2019 February. Released 2019 Q1 2019 July
Status
 Available. Released 2020 October 13 discontinued Available. Released 2019 July
Device Body
 glass front | plastic back | plastic frame
Dimensions
 53.3 x 45.9 x 11.8 mm ( 2.10 x 1.81 x 0.46 in ) 147.8 x 70.7 x 8.6 mm ( 5.82 x 2.78 x 0.34 in ) 155.1 x 75.1 x 8.3 mm ( 6.11 x 2.96 x 0.33 in )
Weight in gram
 32 146 163.5
SIM card
 No Nano-SIM + Nano-SIM dual SIM ( Nano-SIM | dual stand-by )
Water Resistance
 waterproof 50 meter depth - 10 minutes No No
Display type
 AMOLED | 450 Luminance units ( the peak ) IPS LCD IPS LCD
Display resolution
 454 x 454 pixels ( ~326 pixel per inch density ) 720 x 1440 pixels | 18 : 9 ratio ( ~293 pixel per inch density ) 720 x 1520 pixels | 19 : 9 ratio ( ~270 pixel per inch density )
Display size
 1.39 inches 5.5 inches | 78.1 cm2 ( ~74.7% screen to body ratio ) 6.22 inches | 96.6 cm2 ( ~82.9% screen to body ratio )
Display Protection
Operating System
 proprietary Operating system android 9.0 ( pie ) android 8.1 ( oreo ) | funtouch 4.5
CPU
 Octa-core ( 4x1.6 GHz cortex-a55 & 4x1.2 GHz cortex-a55 ) Quad-core 2.0 GHz cortex-a53
Chipset
 unisoc sc9863 ( 28 nm ) mediatek mt6761 helio a22 ( 12 nm )
GPU
 img8322 powervr ge8320
Memory card
 No microsdxc ( uses shared sim slot )
Memory v1
 32gb 3gb RAM 16gb 2gb RAM
Memory v2
 64gb 4gb RAM 32gb 2gb RAM
Primary camera

13 megapixel| lens aperture2.0 | 1/3.1" | 1.12µm
2 megapixel| ( depth )
8 megapixel| lens aperture2.0 | Auto focus
Secondary camera

5 megapixel| lens aperture2.2 | 1/5.0" | 1.12µm
5 megapixel| lens aperture1.8
Loud speaker
 Yes Yes Yes
Audio jack
 No Yes Yes
WLAN
 No Wi-Fi 802.11 b/g/n | Wi-Fi Direct Wi-Fi 802.11 b/g/n | Wi-Fi Direct | hotspot
Bluetooth
 5.0 | a2dp | le 4.2 | a2dp | le 5.0 | a2dp | le
GPS
 Yes with a-gps glonass galileo
NFC
 Yes No No
Radio
 No FM Radio FM Radio
USB
 No microusb 2.0 microusb 2.0 | USB on-the-go
Sensors
 accelerometer | gyroscope | heart rate | barometer | compass | spo2 fingerprint ( rear-mounted ) | accelerometer | proximity accelerometer | proximity | compass
Battery
 Li-lon 420 mAh | Non-removable Li-lon 3060 mAh | Non-removable li-po 4030 mAh | Non-removable
Battery Charge
 wireless
Colors
 black color gradations, silver color gradations, blue color gradations, beige blue, black, rose, gold black, gold
Network technology
 No cellular connectivity gsm / hspa / lte gsm / hspa / lte
5G bands
Network speed
 No hspa 42.2/5.76 mbps lte cat4 150/50 mbps hspa 42.2/5.76 mbps lte cat4 150/50 mbps
GPRS
 No
EDGE
 No
Approx price
  • 90 GBP
  • 103 EUR
  • 990 NOK
  • 1100 SEK
  • 6400 RUB
  • 110 USD
  • 540 BRL
  • 150 AUD
  • 140000 KRW
  • 14000 JPY
  • 140 SGD
  • 460 MYR
  • 380 AED
  • 1800 ZAR
  • 80 GBP
  • 99 EUR
  • 890 NOK
  • 1000 SEK
  • 5800 RUB
  • 100 USD
  • 490 BRL
  • 140 AUD
  • 120000 KRW
  • 13000 JPY
  • 130 SGD
  • 410 MYR
  • 340 AED
  • 1600 ZAR