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Oppo F31 5G vs Samsung Galaxy J2 2017

Key Feature Comparison

Oppo F31 5G

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Samsung Galaxy J2 2017

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At a Glance

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Octa core (2.4 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55)

MediaTek Dimensity 6300 Energy, Mali-G57 MC2

Quad core, 1.3 GHz, Cortex A7

Samsung Exynos 3 Quad 3475, Mali-T720 MP1

7000 mAh

Li-Polymer, Super Flash, 80W

2000 mAh

Li-ion

16.69 cm (6.57 inch)

397 ppi, FHD+

11.94 cm (4.7 inch)

234 ppi

Dual, 50MP + 2MP

4k @ 60 FPS, Full HD @ 120 FPS

Single, 5MP

1280x720 @ 30 fps

5G

Dual SIM, GSM+GSM

4G

Dual SIM, GSM+GSM

Detailed Specs

Screen Size

16.69 cm (6.57 inch)
11.94 cm (4.7 inch)

Screen Type

AMOLED
Super AMOLED

Screen Resolution

1080 x 2376 pixels
540 x 960 pixels

Pixel Density

397 ppi
234 ppi

Aspect Ratio

20:09
16:09

Screen to Body Ratio

88.42%
64.51%

Screen Design

Punch hole
-

Screen Refresh Rate

120 Hz
-

Screen Quality

FHD+
-

Peak Brightness

1400 nits
-

Phone Variants

8GB 128GB, 8GB 256GB
1GB 8GB

Expandable Storage

Yes
Yes

RAM Type

LPDDR4X
LPDDR3

Storage Type

UFS 2.2
eMMC 4.5

OTG Support

Yes
Yes

Expandable Storage Capacity

-
Yes, 128 GB

Sensors

Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
Proximity sensor, Accelerometer

Operating System

Android v15
Android v5.4 (Lollipop)

GPU

Mali-G57 MC2
Mali-T720 MP1

Chipset

MediaTek Dimensity 6300 Energy
Samsung Exynos 3 Quad 3475

CPU

Octa core (2.4 GHz, Dual core, Cortex A76 + 2 GHz, Hexa Core, Cortex A55)
Quad core, 1.3 GHz, Cortex A7

Custom User Interface

ColorOS
-

Clock Speed

2.4 GHz
1.3 GHz

Architecture

64 bit
-

Process Technology

6 nm
28 nm

Battery Capacity

7000 mAh
2000 mAh

Battery Removable

No
No

Battery Type

Li-Polymer
Li-ion

Charger Type

Super Flash, 80W
-

USB Type-C

Yes
No

Fast Charging

Yes
-

Charging Time

100 % in 61 minutes
-

Announced On

15-Sep-25
5-Oct-17

Market Status

Available
Available

Brand

OPPO
Samsung

Model Number

CPH2781
-

Price Status

Confirmed
Confirmed

Price

Rs. 22,999
Rs. 6,000

GPS

Yes A-GPS, Glonass
Yes A-GPS, Glonass

NFC

Yes
No

Network Support

5G
4G

Bluetooth

Yes
Yes

FM Radio

No
Yes

3.5mm Audio Jack

No
Yes

SIM Size

SIM1: Nano, SIM2: Nano
SIM1: Micro, SIM2: Micro

Wi-Fi

Yes, Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 5GHz 6GHz, MIMO
Yes, Wi-Fi 802.11, b/g/n

Bluetooth Type

v5.4
v4.1

Audio Jack

USB Type-C
3.5 mm

SIM Slot(s)

Dual SIM, GSM+GSM
Dual SIM, GSM+GSM

eSIM

No
No

Wi-Fi Features

Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot

VoLTE

Yes
-

SIM 1 Bands

5G Bands: FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N20 / N26 / N28, TDD N38 / N40 / N41 / N66 / N77 / N78, 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) ...
4G Bands: TD-LTE 2300(band 40), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...

SIM 2 Bands

5G Bands: FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N20 / N26 / N28, TDD N38 / N40 / N41 / N66 / N77 / N78, 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39), FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) ...
4G Bands: TD-LTE 2300(band 40), FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) / 800(band 20), 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz, 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz, GPRS: Available, EDGE: Available...

Front Video Recording

4k @ 60 FPS, Full HD @ 60 FPS
-

Front Camera Features

Fixed Focus
-

Front Camera Setup

Single, 16MP
Single, 2MP

Front Camera 1 Resolution

16 MP
2 MP

Front Camera 1 Type

f/2.4, Wide Angle, Primary Camera
f/2.2 Primary Camera

Front Camera 1 Lens

1/1.3" sensor size, 1micrometer pixel size
-

Front Sensor

-
CMOS

Front Aperture

-
f/2.2

Weight

185 grams
130 grams

Colors

Midnight Blue, Cloud Green, Bloom Red
Black, Gold

Build

Back: Polycarbonate
Back: Plastic

Dimensions

158.2 x 75 x 8 mm
136.5 x 69 x 8.4 mm

OIS

Yes
No

Rear Flash

Yes, LED Flash
Yes, LED Flash

Rear Video Recording

4k @ 60 FPS, Full HD @ 120 FPS
1280x720 @ 30 fps

Rear Camera Features

Digital Zoom, Auto Flash, Face detection, Touch to focus
Digital Zoom, Auto Flash, Face detection, Touch to focus

Rear Camera Setup

Dual, 50MP + 2MP
Single, 5MP

Rear Camera 1 Resolution

50 MP
5 MP

Rear Camera 1 Type

f/1.8, Wide Angle, Primary Camera
f/2.2 Primary Camera

Rear Camera 1 Lens

1/2.88" sensor size, 1.6micrometer pixel size
-

Rear Camera 2 Resolution

2 MP
-

Rear Camera 2 Type

f/2.4, Ultra-Wide Angle Camera
-

Rear Camera 2 Lens

1/1.5" sensor size, 1.75micrometer pixel size
-

Rear Aperture

f/1.8
f/2.2

Rear Sensor

-
CMOS image sensor

Fingerprint Scanner

Yes
No

Fingerprint Scanner Position

On-Screen
-

Fingerprint Scanner Type

Optical
-
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