Xiaomi Mi A2 (Mi 6X) vs Vivo Y66

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          General Info

          Manufacturer
          Xiaomi vivo
          Announced
          April 2018 December 2016
          Status
          Available - April 2018 Available - December 2016
          Price
          Rs. 16,900 ($250.00) [Similarly Priced] Rs. 14,990 ($216.00) [Similarly Priced]
          Colors
          Cherry Pink, Flame Red, Sand Gold, Glacier Blue, Black Gold
          Form Factor
          Candybar Candybar
          Dimension
          158.7 x 75.4 x 7.3 mm
          (6.25 x 2.97 x 0.29 in)
          153.56 x 75.79 x 7.49 mm
          (6.05 x 2.98 x 0.29 in)
          Weight
          168 g (5.93 oz) 157 g (5.54 oz)
          SIM Type
          Hybrid Dual SIM (Nano-SIM, dual stand-by) Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card)
          2G Network
          GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
          CDMA 800 & TD-SCDMA - China
          GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
          CDMA2000 1xEV-DO
          3G Network
          HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100
          4G Network
          LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)
          Messaging
          SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM
          Build Features
          - Fingerprint Sensor
          - Metal Body
          - 2.5D Curved Glass
          Notification LED
          Yes Yes

          Hardware and OS

          OS
          Android 8.1 (Oreo); Android One Android OS, v6.0.1 (Marshmallow)
          User Interface
          - FunTouch OS 3.0
          Processor
          Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260), Qualcomm SDM660 Snapdragon 660 [Similar] Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8937 Snapdragon 430 [Similar]
          GPU
          Adreno 512 [Similar] Adreno 505 [Similar]
          RAM
          6 GB [Browse Similar] 3 GB [Browse Similar]
          Internal Memory
          128 GB 32 GB
          External Memory
          microSD, up to 256 GB (uses SIM 2 slot) microSD, up to 128 GB

          Display

          Type
          LTPS IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD capacitive touchscreen
          Colors
          16M colors 16M colors
          Size
          5.99 inches [Similar] 5.5 inches [Similar]
          Resolution
          1080 x 2160 pixels (403 ppi) 720 x 1280 pixels (267 ppi) [Similar]
          Screen-to-Body Ratio
          77.44% 71.66%
          Multi-Touch
          yes multi touch yes multi touch

          Camera

          Rear Camera
          Dual 12 MP + 20 MP [Similar] 13 MP, 4160 x 3120 pixels [Similar]
          Flash
          LED Flash LED Flash
          Features
          Phase Detection Autofocus, 1.25µm, f/1.8 aperture lens, 2x Optical Zoom, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama AutoFocus, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama
          Video
          2160p@30fps, 1080p@30fps, 720p@120fps 1080p@30fps
          Front Camera
          20 MP (f/1.8, 1/2.8", 1.0µm), 1080p, Auto-HDR [Similar] 5 MP [Similar]

          Multimedia

          3.5mm Jack
          3.5 mm jack no 3.5 mm jack yes
          Radio
          FM radio FM radio
          Games
          Yes + Downloadable Yes + Downloadable
          Loud Speaker
          loudspeaker yes loudspeaker yes

          Connectivity and Data Rate

          GPRS
          Yes Yes
          Edge
          Yes Yes
          3G
          HSPA, LTE HSPA, LTE, EV-DO Rev.A 3.1 Mbps, VoLTE
          Bluetooth
          5.0, A2DP, LE v4.1, A2DP
          Wi-Fi
          Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
          USB
          2.0, Type-C 1.0 reversible connector microUSB v2.0
          GPS
          Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS
          Browser
          HTML5 HTML5

          User Memory

          Internal
          128 GB, 6 GB RAM or 64 GB, 4/6 GB RAM 32 GB, 3 GB RAM
          Expandable Storage
          microSD, up to 256 GB (uses SIM 2 slot) microSD, up to 128 GB
          USB OTG
          Not Supported Supported

          Sensors

          Fingerprint
          fingerprint supported fingerprint not supported
          Proximity Sensor
          proximity sensor present proximity sensor present
          Accelerometer Sensor
          accelerometer sensor present accelerometer sensor present
          Light Sensor
          light sensor present light sensor present
          Magnetic-field Sensor (Compass)
          magnetic field sensor present magnetic field sensor present
          NFC
          NFC not supported NFC not supported

          Battery

          Type
          Non-removable Li-Ion Battery Non-removable Li-Ion Battery
          Capacity
          3010 mAh 3000 mAh
          Stand by
          - -
          Talk Time
          - -

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