iQOO Z9x vs Oppo F31 – Price, Specs & Features

Q: Which phone has better performance, the iQOO Z9x or the Oppo F31?

In this performance comparison, the iQOO Z9x with its Snapdragon 6 Gen 1 (4nm) performs better than the Oppo F31 with the Dimensity 6300 (4nm), thanks to superior chipset efficiency.

iQOO Z9x alternatives

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iQOO Z9x

Snapdragon 6 Gen 1
4 nm
6000 mAh
44W
6.72"
1080x2408 pixels
50 MP
4K
Specs

Oppo F31

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

Oppo F31

General

Launch Date

May 16, 2024

September 16, 2025

Availability

Available Now

Android 14

Android 15

Custom UI

Funtouch OS

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

165.7 x 76 x 8 mm

158.2 x 75 x 8 mm

Thickness

8 mm

Weight

199 g

185 g

Build Details

Plastic Back

IP Rating

IP64

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

6.72 inches

6.57 inches

Type

IPS LCD

AMOLED, 1B colors

Refresh Rate

120 Hz

Peak Brightness

1000 nits

1400 nits

Resolution

1080x2408 pixels

1080 x 2372 pixels

Pixel Density

393 ppi

397 ppi

Aspect Ratio

20:9

Screen to Body Ratio

86.4 %

88.5 %

Protection

AGC DT-Star D+

Performance

Chipset¹

Qualcomm Snapdragon 6 Gen 1

Mediatek Dimensity 6300 Energy

Process Size

4 nm

CPU

Octa-core
4x2.2 GHz Cortex-A78
4x1.8 GHz Cortex-A55

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

GPU

Adreno 710

Mali-G615 MC2

RAM & Storage

4GB 128GB (UFS 2.2)
6GB 128GB (UFS 2.2)
8GB 128GB (UFS 2.2)

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

RAM Type

LPDDR4X

Expandable Memory

Yes

Camera

Main Camera

50 MP
f/1.8, (wide), 1/1.95", 0.8µm, PDAF

2 MP
f/2.4, (depth)

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

OIS

Yes

Features

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

Color spectrum sensor, LED flash, HDR, panorama

Video Recording

4K
1080p

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

Video Recording Features

gyro-EIS

Selfie Camera

8 MP
f/2.1, (wide)

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

Selfie Features

Panorama

Selfie Video Recording

1080p@30fps

1080p@30fps
720p@30fps

Connectivity

SIM

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

Dual SIM (Nano + Nano)

5G Support

Yes

8 5G bands
n1, n3, n5, n8, n28, n40, n77, n78

Yes

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

VoLTE

Yes

Wi-Fi

Wi-Fi 5

Wi-Fi Details

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

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

Wi-Fi Features

Mobile Hotspot

USB

USB Type-C 2.0, OTG

Bluetooth

5.1

5.4

NFC

Yes

GPS

Yes with A-GPS, Glonass

Yes

Infrared

Yes

UWB (Ultra Wideband)

Battery

Capacity

6000 mAh

7000 mAh

Type

Li-ion

Si/C Li-Ion

Removable

Wired charging

44W

80W

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

Extra Features

Sensors

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

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

Colors and Pricing

Colors

Tornado Green, Storm Grey

Cloud Green, Midnight Blue, Bloom Red

Price in India

₹13499

₹22999

FAQs

Which phone has better performance?

In this performance comparison, the iQOO Z9x with its Qualcomm Snapdragon 6 Gen 1 (4nm) performs better than the Oppo F31 with the Mediatek Dimensity 6300 (4nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

Both iQOO Z9x and Oppo F31 offer the same software support — 2 years of OS updates and 3 years of security updates.

Which phone has a better display?

Oppo F31 features a superior AMOLED display, while iQOO Z9x comes with an LCD panel. Both smartphones offer the same 120 Hz refresh rate. 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 features a larger 7000 mAh battery, potentially delivering better battery life. Oppo F31 also supports faster wired charging at 80W, compared to 44W on iQOO Z9x.

Which phone has better water and dust resistance?

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

Can I buy these phones on Amazon?

iQOO Z9x – Check price here
Oppo F31 – Check price here

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