vivo Y400 vs Xiaomi Redmi 15

vivo Y400

₹21,999

@ Amazon

Xiaomi Redmi 15

₹14,998

@ Amazon

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Summary

Spec Score

83%

80%

Release Date

07 Aug, 2025

28 Aug, 2025

Performance


Snapdragon 4 Gen 2	Snapdragon 6s Gen 3
Octa Core (upto 2.2 GHz)	Octa Core (upto 2.3 GHz)
8 GB RAM	6 GB RAM

Display


6.67 inches (16.94 cm)	6.9 inches (17.53 cm)
AMOLED	IPS LCD
1080x2400 px (FHD+)	1080x2340 px (FHD+)
120 Hz Refresh Rate	144 Hz Refresh Rate

Rear Camera


50 MP Wide Angle Primary Camera	50 MP Wide Angle Primary Camera
2 MP Depth Camera	N/A

Front Camera


32 MP Wide Angle Lens	8 MP Wide Angle Lens

Battery


6000 mAh	7000 mAh
90W Flash Charging	33W Fast Charging
No Wireless Charging	No Wireless Charging

Storage

128 GB	128 GB
UFS 3.1	UFS 2.2

Expert Review

7.6/10

Read Expert Review

7.0/10

Read Expert Review

Pros

Sleek & durable
Vibrant display colours
Good lowlight cameras

Two-day battery life
Premium design
Big screen for bingeing content

Cons

Lacks raw performance
Overexposed images in daylight

Thick bezels
Phone seems unnecessarily large
Low-light photography could be better

User Ratings

4.4/5

(828 ratings)

4.3/5

(790 ratings)

Benchmarks (The higher, the better)

478,134 AnTuTu Score	463,289 AnTuTu Score
N/A	14h 54m Battery Life (PC Mark)

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₹21,999

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₹14,998

@ Amazon

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1 Video

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General

Launch Date

Aug 07, 2025

(Official)

Aug 28, 2025

(Official)

Operating System

Android v15

OS Updates

2 Years

2 Year

Security Updates

3 Years

4 Year

Custom UI

Funtouch OS

HyperOS

Performance

Performance Rating

Very Good

Chipset

Qualcomm Snapdragon 4 Gen 2 SM4450

Qualcomm Snapdragon 6s Gen 3

CPU

Octa core

2.2 GHz, Dual core, Cortex A78 1.95 GHz, Hexa Core, Cortex A55

Octa core

2.3 GHz, Dual core, Cortex A78 1.95 GHz, Hexa Core, Cortex A55

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

4 nm

6 nm

Graphics (GPU)

Adreno 613

Adreno 619

RAM

8 GB	6 GB / 8 GB

RAM Type

LPDDR4X

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

478,134

463,289

Bootup Time (The lower, the better)

24.0 s

34.0 s

Gaming Test Results

GFX Score (The higher, the better) GFXBench Manhattan benchmark measures the performance of GPU, which affects gaming experience.

1,415.0

2,620.0

Battery Drain* (The lower, the better)

7.0 %

6.0 %

Heating* (The lower, the better)

13.9 %

23.7 %

* after 30 mins of gaming

Display

Display Rating

Excellent

Display Type

AMOLED

IPS LCD

Screen Size

6.67 inches (16.94 cm)

6.9 inches (17.53 cm)

Resolution

1080x2400 px (FHD+)

1080x2340 px (FHD+)

Peak Brightness

1800 nits

850 nits

HBM Brightness

1200 nits

N/A

Refresh Rate

120 Hz

144 Hz

Aspect Ratio

20:9

19.5:9

Pixel Density

394 ppi

374 ppi

Screen to Body Ratio (calculated)

87.51 %

86.04 %

Bezel-less Display

Yes with punch-hole display

Screen to Body Ratio (claimed by the brand)

91.9 %

N/A

Design

Height

162.99 mm

168.48 mm

Width

75.31 mm

80.45 mm

Thickness

7.90 mm

8.40 mm

Weight

197 grams

217 grams

Build Material

Back: Plastic

Water Resistance

Yes Water resistant IP68 IP69 (up to 30 minutes in a depth of 2 meter)

Yes Splash proof IP64

Ruggedness

Dust proof

Rear Camera

Rear Camera Rating

Very Good

Good

Resolution

50 MP
Primary Cameraf/1.8 Wide Angle1/1.95" sensor size IMX852 CMOS image sensor Exmor-RS CMOS Sensor 0.8µm pixel size

50 MP
Primary Cameraf/1.75 Wide Angle

2 MP
f/2.4 Depth Camera

N/A

Autofocus

Yes

OIS

Yes

Flash

Yes Dual-color LED Flash + Aura Light

Yes LED Flash

Image Resolution

8150 x 6150 Pixels

Settings

Exposure compensation ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
SuperMoon

Continuous Shooting
High Dynamic Range mode (HDR)

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus

Digital Zoom
Auto Flash
Face detection
Filters
Touch to focus

Video Recording

1920x1080 @ 30 fps

Video Recording Features

Dual Video Recording

N/A

Front Camera

Front Camera Rating

Very Good

Resolution

32 MP
f/2.45 Wide Angle Primary Camera1/3.1" sensor size 0.7µm pixel size

8 MP
f/2.2 Wide Angle Primary Camera

Autofocus

N/A

Video Recording

1920x1080 @ 30 fps

Compare Camera Samples

Battery

Battery Rating

Excellent

Very Good

Capacity

6000 mAh

7000 mAh

Battery Type

Li-ion

Silicon Carbon

Quick Charging

Yes 90W Flash Charging 50% in 20 minutes

Yes 33W Fast Charging

Battery Test Results

Charging Time (20% to 100%) (The lower, the better)

0h 43m 0s

1h 18m 0s

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

N/A

14h 54m

Storage

Internal Storage

128 GB / 256 GB

Storage Type

UFS 3.1

UFS 2.2

Expandable Storage

N/A	Yes Up to 2 TB

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano

SIM1: Nano SIM2: Nano (Hybrid)

Network Support

5G 4G

VoLTE

Yes

SIM 1

5G Bands:

FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N77 / N78

5G Bands:

FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N78

4G Bands:

TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 3500(band 42)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)

4G Bands:

TD-LTE 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 850(band 5)

SIM 2

5G Bands:

FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N77 / N78

5G Bands:

FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N78

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 3500(band 42) / 3500(band 48)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)

4G Bands:

TD-LTE 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 850(band 5)