iQOO Neo9 Pro vs vivo Y400 – Price, Specs & Features

Q: Which phone has better performance, the iQOO Neo9 Pro or the vivo Y400?

In this performance comparison, the iQOO Neo9 Pro with its Snapdragon 8 Gen 2 (4nm) performs better than the vivo Y400 with the Snapdragon 4 Gen 2 (4nm), thanks to superior chipset efficiency.

iQOO Neo9 Pro alternatives

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vivo Y400 alternatives

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Motorola Edge 50 Pro

Redmi Note 13 Pro+

Samsung Galaxy S24 FE

Samsung Galaxy A54

Samsung Galaxy A34

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iQOO Neo9 Pro

Snapdragon 8 Gen 2
4 nm
5160 mAh
120W
6.78"
1260x2800 pixels
50 MP
8K@30fps,
Specs

vivo Y400

Snapdragon 4 Gen 2
4 nm
6000 mAh
90W
6.67"
1080 x 2400 pixels
50 MP
1080p@30fps
Specs

vivo Y400

General

Launch Date

February 22, 2024

August 04, 2025

Availability

Available Now

Android 14

Android 15

Custom UI

Funtouch 14

Funtouch 15

OS Updates

3 Years

2 Years

Security Updates

4 Years

3 Years

AI Features

AI Image Studio, AI Erase 2.0, AI Transcript Assist, AI Note Assist, AI Documents, Circle to Search, Focus Mode, Screen Translation and more

Body

Dimensions

163.5 x 75.7 x 8.0 mm

162.3 x 75.3 x 7.9 mm

Thickness

8.0 mm

7.9 mm

Weight

190 g

197 g

Build Details

Plastic Frame

Plastic Back, Plastic Frame

IP Rating

IP54

IP69 (dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min), MIL-STD-810H compliant*, also IP68 rated)

Display

Size

6.78 inches

6.67 inches

Type

LTPO AMOLED, HDR10

AMOLED

Refresh Rate

144 Hz

120 Hz

Peak Brightness

3000 nits

1800 nits

Resolution

1260x2800 pixels

1080 x 2400 pixels

Pixel Density

453 ppi

395 ppi

Aspect Ratio

20:9

Screen to Body Ratio

89.7 %

87.9 %

Performance

Chipset¹

Qualcomm Snapdragon 8 Gen 2

Qualcomm Snapdragon 4 Gen 2

Process Size

4 nm

CPU

Octa-core
1x3.2 GHz Cortex-X3
2x2.8 GHz Cortex-A715
2x2.8 GHz Cortex-A710
3x2.0 GHz Cortex-A510

Octa-core
2x2.2 GHz Cortex-A78
6x1.95 GHz Cortex-A55

GPU

Adreno 740

Adreno 613

RAM & Storage

8GB 128GB (UFS 4.0)
8GB 256GB (UFS 4.0)
12GB 256GB (UFS 4.0)

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

RAM Type

LPDDR5X

LPDDR4X

Expandable Memory

Yes

Camera

Main Camera

50 MP
f/1.9, (wide), 1/1.49", PDAF, OIS

8 MP
f/2.2, 119˚ (ultrawide)

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

2 MP
f/2.4, (depth)

OIS

Yes

Features

LED flash, panorama, HDR, 20 x Digital Zoom, Auto Flash, Face detection, Touch to focus

Ring-LED flash, panorama, HDR

Video Recording

8K@30fps,
4K
1080p

1080p@30fps

Video Recording Features

Video Pro Mode, gyro-EIS

Selfie Camera

16 MP
f/2.5, (wide), 1/3.1"

32 MP
f/2.45, (wide), 1/3.1", 0.7µm

Selfie Video Recording

1080p@30fps

Connectivity

SIM

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

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

5G Support

Yes

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

Yes

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

VoLTE

Yes

Wi-Fi

Wi-Fi 7

Wi-Fi 5

Wi-Fi Details

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

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

Wi-Fi Features

Mobile Hotspot

USB

USB Type-C 2.0, OTG

Bluetooth

5.3

5.0

NFC

GPS

Yes with A-GPS, Glonass

Yes with Glonass

Infrared

Yes

UWB (Ultra Wideband)

Battery

Capacity

5160 mAh

6000 mAh

Type

Li-Polymer

Li-Ion

Removable

Wired charging

120W

90W

Charging Speed

50% in 11 min

50% in 20 min

Reverse Wired Charging

Wireless Charging

Reverse Wireless Charging

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

FM Radio

Extra Features

Sensors

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

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

Colors and Pricing

Colors

Fiery Red, Conqueror Black

Glam White, Olive Green

Price in India

₹33999

₹21998

FAQs

Which phone has better performance?

In this performance comparison, the iQOO Neo9 Pro with its Qualcomm Snapdragon 8 Gen 2 (4nm) performs better than the vivo Y400 with the Qualcomm Snapdragon 4 Gen 2 (4nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

iQOO Neo9 Pro offers 3 years of OS updates, whereas vivo Y400 provides 2 years. For security updates, iQOO Neo9 Pro offers 4 years of support compared to vivo Y400's 3 years.

Which phone has a better display?

Both iQOO Neo9 Pro and vivo Y400 feature AMOLED displays, offering vibrant colors and deeper blacks. In terms of smoothness, iQOO Neo9 Pro offers a higher 144 Hz refresh rate, ensuring fluid scrolling and animations. iQOO Neo9 Pro also boasts a brighter screen with 3000 nits of peak brightness, enhancing outdoor visibility. Notably, iQOO Neo9 Pro offers a higher screen resolution, resulting in sharper visuals and more detailed content.

Which phone has a bigger battery and faster charging?

vivo Y400 features a larger 6000 mAh battery, potentially delivering better battery life. iQOO Neo9 Pro also supports faster wired charging at 120W, compared to 90W on vivo Y400.

Which phone has better water and dust resistance?

vivo Y400 offers better protection against water and dust with an IP69 rating.

Can I buy these phones on Amazon?

vivo Y400 – Check price here

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