Oppo F31 vs Samsung Galaxy M15 – Price, Specs & Features

Q: Which phone has better performance, the Oppo F31 or the Samsung Galaxy M15?

In this performance comparison, the Oppo F31 with its Dimensity 6300 (4nm) performs better than the Samsung Galaxy M15 with the Dimensity 6100+ (6nm), thanks to superior chipset efficiency.

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Oppo F31

Dimensity 6300
4 nm
7000 mAh
80W
6.57"
1080 x 2372 pixels
50 MP
1080p@60/30fps
Specs

Samsung Galaxy M15

Dimensity 6100+
6 nm
6000 mAh
25W
6.5"
1080 x 2340 pixels
50 MP
1080p@30fps
Specs

Samsung Galaxy M15

General

Launch Date

September 16, 2025

March 09, 2024

Availability

Available Now

Android 15

Android 14

Custom UI

ColorOS 15

One UI 6

OS Updates

2 Years

4 Years

Security Updates

3 Years

5 Years

AI Features

AI LinkBoost 3.0, AI VoiceScribe, AI Call Assistant, AI Assistant for Notes, Google Gemini, AI Eraser 2.0 and more

Body

Dimensions

158.2 x 75 x 8 mm

160.1 x 76.8 x 9.3 mm

Thickness

8 mm

9.3 mm

Weight

185 g

217 g

Build Details

Plastic Back

Plastic Back, Plastic Frame

IP Rating

IP69 (dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min), MIL-STD-810H compliant*, also IP68 rated)

Display

Size

6.57 inches

6.5 inches

Type

AMOLED, 1B colors

Super AMOLED

Refresh Rate

120 Hz

90 Hz

Peak Brightness

1400 nits

800 nits

Resolution

1080 x 2372 pixels

1080 x 2340 pixels

Pixel Density

397 ppi

396 ppi

Aspect Ratio

20:9

19.5:9

Screen to Body Ratio

88.5 %

84.3 %

Protection

AGC DT-Star D+

Performance

Chipset¹

Mediatek Dimensity 6300 Energy

Mediatek Dimensity 6100+

Process Size

4 nm

6 nm

CPU

Octa-core
4x2.5 GHz Cortex-A78
4x2.0 GHz Cortex-A55

Octa-core
2x2.2 GHz Cortex-A76
6x2.0 GHz Cortex-A55

GPU

Mali-G615 MC2

Mali-G57 MC2

RAM & Storage

8GB 128GB (UFS 3.1)
8GB 256GB (UFS 3.1)
12GB 256GB (UFS 3.1)

4GB 128GB
6GB 128GB
8GB 128GB

RAM Type

LPDDR4X

Expandable Memory

Yes

Camera

Main Camera

50 MP
f/1.8, (wide), 1/2.88", 1.6µm, OmniVision OV50D40, PDAF, OIS

2 MP
f/2.4, (depth), 1/1.5", 1.75µm

50 MP
f/1.8, (wide), AF

5 MP
f/2.2, (ultrawide)

2 MP
f/2.4, (macro)

OIS

Yes

Features

Color spectrum sensor, LED flash, HDR, panorama

LED flash, panorama, HDR, 10 x Digital Zoom, Auto Flash, Face detection, Touch to focus

Video Recording

1080p@60/30fps
720p@60/30fps

1080p@30fps

Video Recording Features

gyro-EIS

Selfie Camera

16 MP
f/2.4, (wide), 1/1.3", 1µm, Sony IMX480

13 MP
f/2.0, (wide)

Selfie Features

Panorama

Selfie Video Recording

1080p@30fps
720p@30fps

1080p@30fps

Connectivity

SIM

Dual SIM (Nano + Nano)

Dual SIM, GSM+GSM
SIM1: Nano, SIM2: Nano (Hybrid)

5G Support

Yes

10 5G bands
n1, n3, n5, n8, n28, n38, n40, n41, n77, n78

Yes

13 5G bands
n1, n3, n5, n7, n8, n20, n28, n38, n40, n41, n66, n77, n78

VoLTE

Yes

Wi-Fi

Wi-Fi 5

Wi-Fi Details

802.11 a/b/g/n/ac 5GHz

Wi-Fi Features

Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

USB

USB Type-C 2.0, OTG

USB Type-C 2.0

Bluetooth

5.4

5.3

NFC

Yes

GPS

Yes

Yes with A-GPS, Glonass

Infrared

Yes

UWB (Ultra Wideband)

Battery

Capacity

7000 mAh

6000 mAh

Type

Si/C Li-Ion

Li-ion

Removable

Wired charging

80W

25W

Charging Speed

100% in 61 mins

Reverse Wired Charging

10W

Wireless Charging

Reverse Wireless Charging

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

Yes

FM Radio

Yes

Extra Features

Sensors

Under-display optical fingerprint sensor, accelerometer, gyroscope, proximity, compass

Fingerprint (side-mounted), accelerometer, gyro, compass

Others

Virtual proximity sensing

Colors and Pricing

Colors

Cloud Green, Midnight Blue, Bloom Red

Light Blue, Dark Blue, Gray

Price in India

₹22999

₹16999

FAQs

Which phone has better performance?

In this performance comparison, the Oppo F31 with its Mediatek Dimensity 6300 (4nm) performs better than the Samsung Galaxy M15 with the Mediatek Dimensity 6100+ (6nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

Samsung Galaxy M15 offers 4 years of OS updates, whereas Oppo F31 provides 2 years. For security updates, Samsung Galaxy M15 offers 5 years of support compared to Oppo F31's 3 years.

Which phone has a better display?

Both Oppo F31 and Samsung Galaxy M15 feature AMOLED displays, offering vibrant colors and deeper blacks. In terms of smoothness, Oppo F31 offers a higher 120 Hz refresh rate, ensuring fluid scrolling and animations. Oppo F31 also boasts a brighter screen with 1400 nits of peak brightness, enhancing outdoor visibility. Both phones have the same screen resolution.

Which phone has a bigger battery and faster charging?

Oppo F31 comes with a larger 7000 mAh battery, which may offer longer usage on a single charge. Oppo F31 also supports faster wired charging at 80W, compared to 25W on Samsung Galaxy M15.

Which phone has better water and dust resistance?

Oppo F31 includes an IP69 rating, while Samsung Galaxy M15 lacks an official IP rating.

Can I buy these phones on Amazon?

Oppo F31 – Check price here

¹ Scores can vary even with the same chipset due to RAM, thermals, and software optimization.