Infinix Note 40X vs Oppo F31 Pro Plus – Price, Specs & Features

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Infinix Note 40X

Dimensity 6300
6 nm
5000 mAh
18W
6.78"
1080x2460 pixels
108 MP
1440p@30fps
Specs

Oppo F31 Pro Plus

Snapdragon 7 Gen 3
4 nm
7000 mAh
80W
6.8"
1280 x 2800 pixels
50 MP
4K@30fps
Specs

Oppo F31 Pro Plus

General

Launch Date

August 05, 2024

September 16, 2025

Availability

Available Now

Android 14

Android 15

Custom UI

XOS 14

ColorOS 15

OS Updates

2 Years

Security Updates

3 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

168.9 x 76.5 x 8.3 mm

163.1 x 77.6 x 7.7 mm

Thickness

8.3 mm

7.7 mm

Weight

201 g

195 g

Build Details

Plastic Back

IP Rating

IP52 (dust and splash resistant)

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

6.78 inches

6.8 inches

Type

AMOLED

AMOLED, 1B colors

Refresh Rate

120 Hz

Peak Brightness

500 nits

1600 nits

Resolution

1080x2460 pixels

1280 x 2800 pixels

Pixel Density

396 ppi

453 ppi

Aspect Ratio

19.5:9

Screen to Body Ratio

84.5 %

89.1 %

Protection

AGC DT-Star D+

Performance

Chipset¹

Mediatek Dimensity 6300

Qualcomm Snapdragon 7 Gen 3

Process Size

6 nm

4 nm

CPU

Octa-core
2x2.4 GHz Cortex-A76
6x Cortex-A55

Octa-core
1x2.63 GHz Cortex-A715
3x2.4 GHz Cortex-A715
4x1.8 GHz Cortex-A510

GPU

Mali-G57 MC2

Adreno 720

RAM & Storage

8GB 256GB (UFS 2.2)
12GB 256GB (UFS 2.2)

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

RAM Type

LPDDR4X

Expandable Memory

Yes

Camera

Main Camera

108 MP
f/1.8, (wide), PDAF

2 MP
macro

2 MP

50 MP
f/1.8, (wide), 1/2.88", 0.61µm, OmniVision OV50D40, PDAF, OIS, Up to 10x Optical Zoom

2 MP
f/2.4, (depth), 1/1.5", 1.75µm

OIS

Yes

Features

Quad-LED flash, HDR, panorama, Digital Zoom, Auto Flash, Face detection

Color spectrum sensor, LED flash, HDR, panorama

Video Recording

1440p@30fps
1080p@30/60fps

4K@30fps
1080p@30/60/120fps, gyro-EIS, OIS

Video Recording Features

Dual Video Recording, Short Video Mode

Selfie Camera

8 MP
wide

32 MP
f/2.4, (wide), f/2.4, 1/3.1", 0.7µm, GalaxyCore 32E2

Selfie Features

Dual-LED flash

Panorama

Selfie Video Recording

1080p@30fps

1080p@30fps, gyro-EIS

Connectivity

SIM

Dual SIM, GSM+GSM
SIM1: Nano, SIM2: Nano

Dual SIM (Nano + Nano)

5G Support

Yes

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

VoLTE

Yes

Wi-Fi

Wi-Fi 5

Wi-Fi 6

Wi-Fi Details

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

802.11 ax, MIMO

Wi-Fi Features

Mobile Hotspot

USB

USB Type-C 2.0, OTG

Bluetooth

5.3

5.2

NFC

Yes

GPS

Yes with A-GPS

Yes

Infrared

Yes

UWB (Ultra Wideband)

Battery

Capacity

5000 mAh

7000 mAh

Type

Li-Polymer

Si/C Li-Ion

Removable

Wired charging

18W

80W

Charging Speed

50% in 31 min

100% in 61 mins

Reverse Wired Charging

Wireless Charging

Reverse Wireless Charging

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

Yes

FM Radio

Extra Features

Sensors

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

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

Colors and Pricing

Colors

Palm Blue, Lime Green, Starlit Black

Festival Pink, Himalayan White, Gemstone Blue

Price in India

₹19999

₹32999

FAQs

Which phone has better performance?

In this performance comparison, the Oppo F31 Pro Plus with its Qualcomm Snapdragon 7 Gen 3 (4nm) performs better than the Infinix Note 40X with the Mediatek Dimensity 6300 (6nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

Both Infinix Note 40X and Oppo F31 Pro Plus offer the same software support — 2 years of OS updates and 3 years of security updates.

Which phone has a better display?

Both Infinix Note 40X and Oppo F31 Pro Plus feature AMOLED displays, offering vibrant colors and deeper blacks. Both smartphones offer the same 120 Hz refresh rate. Oppo F31 Pro Plus also boasts a brighter screen with 1600 nits of peak brightness, enhancing outdoor visibility. Notably, Oppo F31 Pro Plus offers a higher screen resolution, resulting in sharper visuals and more detailed content.

Which phone has a bigger battery and faster charging?

Oppo F31 Pro Plus features a larger 7000 mAh battery, potentially delivering better battery life. Oppo F31 Pro Plus also supports faster wired charging at 80W, compared to 18W on Infinix Note 40X.

Which phone has better water and dust resistance?

Oppo F31 Pro Plus offers better protection against water and dust with an IP69 rating.

Can I buy these phones on Amazon?

Oppo F31 Pro Plus – Check price here

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