Phone Comparison - Oppo A57 vs Samsung Galaxy J7 Perx vs vivo Y55s

general General Info

Manufacturer Oppo Samsung vivo
Announced November 2016 Not Announced Yet February 2017
Status Available - January 2017 Rumored Coming Soon - February 2017
Price Rs. 14,990 ($240.00) [Similarly Priced] - -
Colors Gold, Rose Gold Black, White Crown Gold, Space Gray
Form Factor Candybar Candybar Candybar
Dimension 149.1 x 72.9 x 7.65 mm
(5.87 x 2.87 x 0.3 in)
- -
Weight 147 g (5.19 oz) - -
SIM Type Dual-SIM Dual-SIM Dual SIM
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA2000 1xEV-DO - A59m
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 / 800 - Taiwan HSDPA 900 / 2100
4G Network LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Taiwan LTE band 3(1800), 5(850), 40(2300)
Messaging SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM
Build Features - Fingerprint Sensor
- Metal Build
- 2.5D Curved Glass
- Fingerprint Sensor -
Notification LED Yes Yes No

hardware Hardware and OS

OS Android OS, v6.0 (Marshmallow) Android OS, v7.0 (Nougat) Android OS, v6.0 (Marshmallow)
User Interface ColorOS 3.0 - -
Processor Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8917 Snapdragon 425
GPU Adreno 505 Adreno 506 Adreno 306
RAM 3 GB 2/3 GB 3 GB
Internal Memory 32 GB 16/32 GB 16 GB
External Memory microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 256 GB microSD, up to 256 GB (dedicated slot)

display Display

Type IPS LCD capacitive touchscreen Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 5.2 inches 5.5 inches 5.2 inches
Resolution 720 x 1280 pixels (282 ppi) 1080 x 1920 pixels (401 ppi) 720 x 1280 pixels (282 ppi)
Screen-to-Body Ratio 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 13 MP, 4160 x 3120 pixels 13 MP
Flash LED Flash Dual-LED (dual Tone) LED Flash
Features Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Phase Detection Autofocus (PDAF), f/1.9 aperture, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Autofocus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 16 MP [Similar] 5 MP [Similar] 5 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE, VoLTE HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps, VoLTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE
Bluetooth v4.1, A2DP v4.2, A2DP, EDR, LE v4.0, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n, hotspot Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB microUSB v2.0, USB Host Type-C 1.0 reversible connector microUSB v2.0
GPS Yes, with A-GPS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, BDS
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 32 GB, 3 GB RAM 16/32 GB, 2/3 GB RAM 16 GB, 3 GB RAM
Expandable Storage microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 256 GB microSD, up to 256 GB (dedicated slot)
USB OTG Supported Supported Not Supported

Apps Sensors

Fingerprint fingerprint 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 supported NFC not supported

battery Battery

Type Non-removable Li-Ion Battery Non-removable Li-Ion Battery Non-removable Li-Ion Battery
Capacity 2900 mAh 3300 mAh 2730 mAh
Stand by - - -
Talk Time - - -