Phone Comparison - Oppo A57 vs Oppo A77 vs Samsung Galaxy S9

general General Info

Manufacturer Oppo Oppo Samsung
Announced November 2016 July 2017 February 2018
Status Available - January 2017 Available - July 2017 Coming Soon, March 2018
Price Rs. 14,990 ($240.00) [Similarly Priced] - Rs. 52,999 ($750.00) [Similarly Priced]
Colors Gold, Rose Gold Gold, Rose Gold Various
Form Factor Candybar Candybar Candybar
Dimension 149.1 x 72.9 x 7.65 mm
(5.87 x 2.87 x 0.3 in)
153.3 x 75.9 x 7.4 mm
(6.04 x 2.99 x 0.29 in)
147.7 x 68.7 x 8.5 mm
(5.81 x 2.7 x 0.33 in)
Weight 147 g (5.19 oz) 148 g (5.22 oz) 163 g (5.75 oz)
SIM Type Dual-SIM Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM), Hybrid Dual SIM (Nano-SIM, dual stand-by)
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 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Network LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE LTE
Messaging SMS, MMS, Push Mail, EMail SMS, MMS, Push Mail, EMail SMS, MMS, EMail, IM
Build Features - Fingerprint Sensor
- Metal Build
- 2.5D Curved Glass
- Fingerprint Sensor
- Fingerprint Sensor
- Samsung Pay (Visa, MasterCard certified)
- IP68 certified - dust/water proof over 1.5 meter and 30 minutes
Notification LED Yes Yes Yes

hardware Hardware and OS

OS Android OS, v6.0 (Marshmallow) Android OS, v7.0 (Nougat) Android 8.0 (Oreo)
User Interface ColorOS 3.0 - Samsung Experience
Processor Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 Octa-core (4x2.8 GHz Mongoose M3 & 4x1.7 GHz Cortex-A55) - EMEA
Octa-core (4x2.7 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver) - USA & China, Exynos 9810 Octa - EMEA
Qualcomm Snapdragon 845
GPU Adreno 505 Adreno 506 Mali-G72 MP18 - EMEA
Adreno 630 - USA & China
RAM 3 GB 4 GB 4 GB
Internal Memory 32 GB 64 GB 64 GB
External Memory microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 256 GB (uses SIM 2 slot) microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only

display Display

Type IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5
Colors 16M colors 16M colors 16M colors
Size 5.2 inches 5.5 inches 5.8 inches
Resolution 720 x 1280 pixels (282 ppi) 1080 x 1920 pixels (401 ppi) 1440 x 2960 pixels (568 ppi)
Screen-to-Body Ratio 68.79% 71.50% 84.00%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 13 MP 13 MP 12 MP
Flash LED Flash LED Flash LED Flash
Features Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Phase Detection Autofocus, f/1.5 - f/2.4 variable aperture lens, 26mm, 1/2.5", 1.4 µm, Dual Pixel PDAF, OIS, Geo-tagging, Simultaneous 4K Video And 9MP Image Recording, Touch Focus, Face/smile Detection, Auto HDR, Panorama
Video 1080p@30fps 1080p@30fps 2160p@30fps, 1080p@60fps, HDR, dual-video rec.
Front Camera 16 MP [Similar] 16 MP, f/2.0 [Similar] 8 MP, f/1.6, autofocus, 1440p, dual video call, Auto HDR [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE, VoLTE HSPA, LTE, VoLTE HSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat16 1024/150 Mbps
Bluetooth v4.1, A2DP 4.2, A2DP 5.0, A2DP, LE, aptX
Wi-Fi Wi-Fi 802.11 a/b/g/n, hotspot Wi-Fi 802.11 b/g/n, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
USB microUSB v2.0, USB Host microUSB 2.0 3.1, Type-C 1.0 reversible connector
GPS Yes, with A-GPS Yes, with A-GPS Yes, with A-GPS, GLONASS, BDS, GALILEO
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 32 GB, 3 GB RAM 64 GB, 4 GB RAM 64 GB, 4 GB RAM
Expandable Storage microSD, up to 128 GB (uses SIM 2 slot) microSD, up to 256 GB (uses SIM 2 slot) microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only
USB OTG Supported Not Supported Not Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint 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
Barometer Sensor barometer sensor barometer sensor not present barometer sensor present
Heart-rate Sensor heart rate sensor heart rate sensor not present heart rate sensor present
NFC NFC not supported NFC not supported NFC supported

battery Battery

Type Non-removable Li-Ion Battery Non-removable Li-Ion Battery Non-removable Li-Ion battery
Capacity 2900 mAh 3200 mAh 3000 mAh
Stand by - - -
Talk Time - - -