Phone Comparison - Vivo Y66 vs Xiaomi Mi A2 (Mi 6X) vs Oppo A3

general General Info

Manufacturer vivo Xiaomi Oppo
Announced December 2016 April 2018 April 2018
Status Available - December 2016 Available - April 2018 Coming Soon - May 2018
Price Rs. 14,990 ($216.00) [Similarly Priced] Rs. 16,900 ($250.00) [Similarly Priced] Rs. 21,000 ($315.00) [Similarly Priced]
Colors Gold Cherry Pink, Flame Red, Sand Gold, Glacier Blue, Black Knight Black, Soybean Meal, Stardust Silver, Garnet Red
Form Factor Candybar Candybar Candybar
Dimension 153.56 x 75.79 x 7.49 mm
(6.05 x 2.98 x 0.29 in)
158.7 x 75.4 x 7.3 mm
(6.25 x 2.97 x 0.29 in)
156 x 75.3 x 7.8 mm
(6.14 x 2.96 x 0.31 in)
Weight 157 g (5.54 oz) 168 g (5.93 oz) 159 g (5.61 oz)
SIM Type Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) Hybrid Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 & TD-SCDMA - China
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 & TD-SCDMA
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 1700(AWS) / 1900 / 2100
4G Network LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) 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), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail
Build Features - Metal Body
- 2.5D Curved Glass
- Fingerprint Sensor
-
Notification LED Yes Yes -

hardware Hardware and OS

OS Android OS, v6.0.1 (Marshmallow) Android 8.1 (Oreo); Android One Android 8.1 (Oreo)
User Interface FunTouch OS 3.0 - -
Processor Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8937 Snapdragon 430 Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260), Qualcomm SDM660 Snapdragon 660 Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53), Mediatek Helio P60
GPU Adreno 505 Adreno 512 Mali-G72 MP3
RAM 3 GB 6 GB 4 GB
Internal Memory 32 GB 128 GB 128 GB
External Memory microSD, up to 128 GB microSD, up to 256 GB (uses SIM 2 slot) microSD, up to 256 GB (dedicated slot)

display Display

Type IPS LCD capacitive touchscreen LTPS IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 LTPS IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.99 inches 6.2 inches
Resolution 720 x 1280 pixels (267 ppi) 1080 x 2160 pixels (403 ppi) 1080 x 2280 pixels (407 ppi)
Screen-to-Body Ratio 71.66% 77.44% 81.64%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 13 MP, 4160 x 3120 pixels Dual 12 MP + 20 MP 16 MP (f/1.8)
Flash LED Flash LED Flash LED Flash
Features AutoFocus, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama Phase Detection Autofocus, 1.25µm, f/1.8 aperture lens, 2x Optical Zoom, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Phase Detection Autofocus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama
Video 1080p@30fps 2160p@30fps, 1080p@30fps, 720p@120fps 1080p@30fps
Front Camera 5 MP [Similar] 20 MP (f/1.8, 1/2.8", 1.0µm), 1080p, Auto-HDR [Similar] 8 MP (f/2.2) [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE, EV-DO Rev.A 3.1 Mbps, VoLTE HSPA, LTE HSPA, LTE
Bluetooth v4.1, A2DP 5.0, A2DP, LE 4.2, A2DP, LE
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot Wi-Fi 802.11 b/g/n/ac, dual-band, WiFi Direct, hotspot
USB microUSB v2.0 2.0, Type-C 1.0 reversible connector microUSB 2.0, USB On-The-Go
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS
Browser HTML5 HTML5 HTML5

memory User Memory

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

Apps Sensors

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

battery Battery

Type Non-removable Li-Ion Battery Non-removable Li-Ion Battery Non-removable Li-Ion Battery
Capacity 3000 mAh 3010 mAh 3400 mAh
Stand by - - -
Talk Time - - -