Phone Comparison - Vivo Y66 vs Oppo A57 vs vivo Y55s

general General Info

Manufacturer vivo Oppo vivo
Announced December 2016 November 2016 February 2017
Status Available - December 2016 Available - January 2017 Coming Soon - February 2017
Price Rs. 14,990 ($216.00) [Similarly Priced] Rs. 14,990 ($240.00) [Similarly Priced] -
Colors Gold Gold, Rose Gold Crown Gold, Space Gray
Form Factor Candybar Candybar Candybar
Dimension 153.56 x 75.79 x 7.49 mm
(6.05 x 2.98 x 0.29 in)
149.1 x 72.9 x 7.65 mm
(5.87 x 2.87 x 0.3 in)
-
Weight 157 g (5.54 oz) 147 g (5.19 oz) -
SIM Type Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) Dual-SIM Dual SIM
2G Network GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO - A59m
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 900 / 2100
4G Network LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 3(1800), 5(850), 40(2300)
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail SMS, MMS, EMail, IM
Build Features - Metal Body
- 2.5D Curved Glass
- Fingerprint Sensor
- Metal Build
- 2.5D Curved Glass
-
Notification LED Yes Yes No

hardware Hardware and OS

OS Android OS, v6.0.1 (Marshmallow) Android OS, v6.0 (Marshmallow) Android OS, v6.0 (Marshmallow)
User Interface FunTouch OS 3.0 ColorOS 3.0 -
Processor Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8937 Snapdragon 430 Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8917 Snapdragon 425
GPU Adreno 505 Adreno 505 Adreno 306
RAM 3 GB 3 GB 3 GB
Internal Memory 32 GB 32 GB 16 GB
External Memory microSD, up to 128 GB microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 256 GB (dedicated slot)

display Display

Type IPS LCD capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.5 inches 5.2 inches 5.2 inches
Resolution 720 x 1280 pixels (267 ppi) 720 x 1280 pixels (282 ppi) 720 x 1280 pixels (282 ppi)
Screen-to-Body Ratio 71.66% 68.79% -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes 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 13 MP 13 MP
Flash LED Flash LED Flash LED Flash
Features AutoFocus, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Autofocus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 5 MP [Similar] 16 MP [Similar] 5 MP [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, VoLTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE
Bluetooth v4.1, A2DP v4.1, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB microUSB v2.0 microUSB v2.0, USB Host microUSB v2.0
GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS Yes, with A-GPS, BDS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 32 GB, 3 GB RAM 32 GB, 3 GB RAM 16 GB, 3 GB RAM
Expandable Storage microSD, up to 128 GB microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 256 GB (dedicated slot)
USB OTG Supported Supported Not 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 2900 mAh 2730 mAh
Stand by - - -
Talk Time - - -