iQOO Z9s Pro vs vivo Y31 Pro – Price, Specs & Features

Q: Which phone has better performance, the iQOO Z9s Pro or the vivo Y31 Pro?

In this performance comparison, the iQOO Z9s Pro with its Snapdragon 7 Gen 3 (4nm) performs better than the vivo Y31 Pro with the Dimensity 7300 (4nm), thanks to superior chipset efficiency.

iQOO Z9s Pro alternatives

Tap above to see alternatives.

iQOO Z10

Nothing Phone (2a)

Oppo F31 Pro

Nothing Phone (3a) Pro

Vivo Y300 Plus

vivo Y31 Pro alternatives

Tap above to see alternatives.

Your comparison result will be shown here.

iQOO Z9s Pro

Snapdragon 7 Gen 3
4 nm
5500 mAh
80W
6.77"
1080x2392 pixels
50 MP
4K@30/60fps
Specs

vivo Y31 Pro

Dimensity 7300
4 nm
6500 mAh
44W
6.72"
1080 x 2408 pixels
50 MP
4K@30fps
Specs

vivo Y31 Pro

General

Launch Date

August 21, 2024

September 15, 2025

Availability

Available Now

Android 14

Android 15

Custom UI

Funtouch 15

OS Updates

2 Years

1 Years

Security Updates

3 Years

1 Years

AI Features

AI Erase, AI Photo Enhance, AI SuperLink, Circle to Search, AI Screen Translation, AI Live Text

Body

Dimensions

163.7 x 75 x 7.5 mm

165.7 x 76.3 x 8.1 mm

Thickness

7.5 mm

8.1 mm

Weight

185 g

204 g

Build Details

Plastic Back OR Vegan Leather

Plastic Back, Plastic Frame

IP Rating

IP64 (dust and water resistant)

IP64 (dust tight and water resistant (water splashes), MIL-STD-810H compliant*)

Display

Size

6.77 inches

6.72 inches

Type

AMOLED, HDR10

IPS LCD, PWM

Refresh Rate

120 Hz

Peak Brightness

4500 nits

1050 nits

Resolution

1080x2392 pixels

1080 x 2408 pixels

Pixel Density

388 ppi

393 ppi

Aspect Ratio

20:9

Screen to Body Ratio

90.3 %

86.0 %

Performance

Chipset¹

Qualcomm Snapdragon 7 Gen 3

Mediatek Dimensity 7300

Process Size

4 nm

CPU

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

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

GPU

Adreno 720

Mali-G615 MC2

RAM & Storage

8GB 128GB (UFS 2.2)
8GB 256GB (UFS 2.2)
12GB 256GB (UFS 2.2)

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

RAM Type

LPDDR4X

Expandable Memory

Camera

Main Camera

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

8 MP
f/2.2, 120˚ (ultrawide)

50 MP
f/1.8, (wide), PDAF

2 MP
f/2.4, (depth)

OIS

Yes

Features

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

Ring-LED flash, panorama

Video Recording

4K@30/60fps
1080p

4K@30fps
1080p@30fps, gyro-EIS

Video Recording Features

Dual Video Recording, gyro-EIS, OIS

Selfie Camera

16 MP
f/2.5, (wide), 1/3.0", 1.0µm

8 MP
(wide), f/2.05

Selfie Video Recording

1080p@30fps

Connectivity

SIM

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

Dual SIM (Nano + Nano (Hybrid))

5G Support

Yes

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

VoLTE

Yes

Wi-Fi

Wi-Fi 6

Wi-Fi 5

Wi-Fi Details

802.11 a/b/g/n/ac/ax 5GHz 6GHz

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

Wi-Fi Features

Mobile Hotspot

USB

USB Type-C 2.0, OTG

Bluetooth

5.4

NFC

GPS

Yes with A-GPS, Glonass

Infrared

Yes

UWB (Ultra Wideband)

Battery

Capacity

5500 mAh

6500 mAh

Type

Li-ion

Li-Ion

Removable

Wired charging

80W

44W

Charging Speed

50% in 21 min

50% in 40 min

Reverse Wired Charging

Yes

Wireless Charging

Reverse Wireless Charging

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

FM Radio

Yes

Extra Features

Sensors

Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Side-mounted fingerprint sensor, accelerometer, gyroscope, proximity, compass

Colors and Pricing

Colors

Flamboyant Orange, Luxe Marble

Dreamy White, Mocha Brown

Price in India

₹24999

₹18999

FAQs

Which phone has better performance?

In this performance comparison, the iQOO Z9s Pro with its Qualcomm Snapdragon 7 Gen 3 (4nm) performs better than the vivo Y31 Pro with the Mediatek Dimensity 7300 (4nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

iQOO Z9s Pro offers 2 years of OS updates, whereas vivo Y31 Pro provides 1 years. For security updates, iQOO Z9s Pro offers 3 years of support compared to vivo Y31 Pro's 1 years.

Which phone has a better display?

iQOO Z9s Pro features a superior AMOLED display, while vivo Y31 Pro comes with an LCD panel. Both smartphones offer the same 120 Hz refresh rate. iQOO Z9s Pro also boasts a brighter screen with 4500 nits of peak brightness, enhancing outdoor visibility. Both phones have the same screen resolution.

Which phone has a bigger battery and faster charging?

vivo Y31 Pro features a larger 6500 mAh battery, potentially delivering better battery life. iQOO Z9s Pro also supports faster wired charging at 80W, compared to 44W on vivo Y31 Pro.

Which phone has better water and dust resistance?

Both phones feature the same IP64 rating for water and dust resistance.

Can I buy these phones on Amazon?

vivo Y31 Pro – Check price here

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