realme 15T vs vivo Y400

Comparing the realme 15T vs vivo Y400 across performance, display, camera, battery, storage, expert reviews and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: realme 15T runs at a higher processing speed of 2.5 GHz, while vivo Y400 runs at 2.2 GHz, making realme 15T the better performer.

Display: vivo Y400 offers a screen size of 6.67 inches, while realme 15T offers 6.57 inches, making vivo Y400 the larger display of the two. Both realme 15T and vivo Y400 feature the same AMOLED display.

Rear Camera: Both realme 15T and vivo Y400 feature a 50 MP primary rear camera.

Front Camera: realme 15T offers a higher front camera resolution with 50 MP, while vivo Y400 offers 32 MP, making realme 15T better for front camera photography.

Battery: realme 15T delivers longer battery life with 17h 30m, while vivo Y400 delivers None, making realme 15T the better pick for all day usage.

Storage: Both realme 15T and vivo Y400 offer the same internal storage of 128 GB.

Expert Review: realme 15T receives a higher expert rating of 8 from the editorial team, while vivo Y400 is rated 7.6.

User Rating: vivo Y400 receives a higher user rating of 4.4, while realme 15T has a rating of 4.2.

realme 15T

₹24,999

@ Amazon

vivo Y400

₹28,999

@ Amazon

Summary

Release Date

06 Sep, 2025

07 Aug, 2025

03 Jul, 2026

Performance


MediaTek Dimensity 6400 Max	Snapdragon 4 Gen 2	Snapdragon 6 Gen 3, LPDDR5X
Octa Core (upto 2.5 GHz)	Octa Core (upto 2.2 GHz)	Octa Core (upto 2.4 GHz)
8 GB RAM	8 GB RAM	6 GB RAM

Display


6.57 inches (16.69 cm)	6.67 inches (16.94 cm)	6.7 inches (17.02 cm)
AMOLED	AMOLED	Super AMOLED
1080x2372 px (FHD+)	1080x2400 px (FHD+)	1080x2340 px (FHD+)
120 Hz Refresh Rate	120 Hz Refresh Rate	120 Hz Refresh Rate

Rear Camera


50 MP Wide Angle Primary Camera	50 MP Wide Angle Primary Camera	50 MP No Shake Cam Primary Camera
2 MP Depth Camera	2 MP Depth Camera	5 MP Ultra-Wide Angle Camera
N/A	N/A	2 MP Macro Camera

Front Camera


50 MP Wide Angle Lens	32 MP Wide Angle Lens	12 MP

Battery


7000 mAh	6000 mAh	5000 mAh
60W Fast Charging	90W Flash Charging	25W Fast Charging
No Wireless Charging	No Wireless Charging	No Wireless Charging

Storage

128 GB	128 GB	128 GB
UFS 2.2	UFS 3.1	UFS 3.1

Expert Review

8.0/10

Read Expert Review

7.6/10

Read Expert Review

N/A

Pros

Slim, lightweight design
Large 7,000mAh battery with 60W charging
Loud and wide sound stage
Decent camera with accurate colours

Sleek & durable
Vibrant display colours
Good lowlight cameras

Device yet to be reviewed

Cons

Less powerful than rivals
Weak low-light performance
Lacks ultrawide camera

Lacks raw performance
Overexposed images in daylight

Device yet to be reviewed

User Ratings

4.2/5

(7,689 ratings)

4.4/5

(1,008 ratings)

N/A

Benchmarks (The higher, the better)

448,625 AnTuTu Score	478,134 AnTuTu Score	845,601 AnTuTu Score
17h 30m Battery Life (PC Mark)	N/A	11h 00m Battery Life (PC Mark)

Compare Prices

₹24,999

@ Amazon

₹28,999

@ Amazon

₹28,999

@ Samsung Shop

Video

1 Video

1 More Video

There are no videos available for the device.

User Feedback

General

Launch Date

Sep 06, 2025

(Official)

Aug 04, 2025

(Official)

Jun 30, 2026

(Official)

Operating System

Android v15

Android v16

OS Updates

3 Years

2 Years

6 Year

Security Updates

4 Years

3 Years

6 Year

Custom UI

Realme UI

Funtouch OS

Samsung One UI

Performance

Performance Rating

Good

Very Good

Chipset

MediaTek Dimensity 6400 Max

Qualcomm Snapdragon 4 Gen 2 SM4450

Qualcomm Snapdragon 6 Gen 3 LPDDR5X

Processor

Octa core

2.5 GHz, Dual core, Cortex A76 2 GHz, Hexa Core, Cortex A55

Octa core

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

Octa core

2.4 GHz, Quad core, Cortex A78 1.8 GHz, Quad core, Cortex A55

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

6 nm

4 nm

Graphics (GPU)

Mali-G57 MC2

Adreno 613

Adreno 710

RAM

8 GB / 12 GB

8 GB

6 GB / 8 GB

RAM Type

LPDDR4X

LPDDR5

Performance Test Results

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

448,625

478,134

845,601

Bootup Time (The lower, the better)

34.0 s

24.0 s

25.0 s

Gaming Test Results

Wild Life Extreme (The higher, the better) Wild Life Extreme is a classic mobile benchmark; it renders in 4K to test the peak performance of a wide range of devices.

382

N/A

948

Battery Drain* (The lower, the better)

5.0 %

7.0 %

N/A

Heating* (The lower, the better)

10.6 %

13.9 %

N/A

* after 30 mins of gaming

Display

Display Rating

Excellent

Best In Class

Display Type

AMOLED

Super AMOLED

Screen Size

6.57 inches (16.69 cm)

6.67 inches (16.94 cm)

6.7 inches (17.02 cm)

Resolution

1080x2372 px (FHD+)

1080x2400 px (FHD+)

1080x2340 px (FHD+)

Peak Brightness

4000 nits

1800 nits

N/A

HBM Brightness

1400 nits

1200 nits

N/A

Refresh Rate

120 Hz

Aspect Ratio

19.8:9

20:9

Pixel Density

397 ppi

394 ppi

387 ppi

Screen to Body Ratio (calculated)

88.8 %

87.51 %

86.58 %

Screen Protection

N/A

Yes

Corning Gorilla Glass Glass Victus Plus

Bezel-less Display

Yes with punch-hole display

Screen to Body Ratio (claimed by the brand)

93.0 %

91.9 %

N/A

Design

Height

158.36 mm

162.99 mm

162.4 mm

Width

75.19 mm

75.31 mm

78.2 mm

Thickness

7.79 mm

7.90 mm

7.7 mm

Weight

181 grams

197 grams

200 grams

Build Material

Back: Plastic

Back: Gorilla Glass Victus Plus

Water Resistance

Yes Water resistant IP68 IP66 IP69 (up to 30 minutes in a depth of 2.5 meter)

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

Good

Very Good

Resolution

50 MP
Primary Camera10x Digital Zoomf/1.8 Wide Angle 75° field-of-view27 mm focal length 1/2.88" sensor size OV50D

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/1.8

2 MP
f/2.4 Depth Camera22 mm focal length

2 MP
f/2.4 Depth Camera

5 MP
f/2.2 Ultra-Wide Angle Camera

N/A

2 MP
f/2.4 Macro Camera

Autofocus

Yes

Yes Phase Detection Autofocus

OIS

Yes

N/A

Flash

Yes LED Flash

Yes Dual-color LED Flash + Aura Light

Yes LED Flash

Image Resolution

8150 x 6150 Pixels

N/A

Settings

Exposure compensation ISO control

N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

Continuous Shooting
High Dynamic Range mode (HDR)
SuperMoon

Macro Mode

Camera Features

10 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Digital Zoom
Auto Flash
Face detection
Touch to focus

N/A

Video Recording

Full HD @30/60 fps
HD @30/60 fps

Full HD @30 fps

4k @30 fps
Full HD @60 fps

Video Recording Features

Dual Video Recording

Slow Motion

Front Camera

Front Camera Rating

Very Good

Resolution

50 MP
f/2.4 Wide Angle Primary Camera

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

12 MP
f/2.2 Primary Camera

Autofocus

N/A

Flash

N/A

Yes Screen flash

Video Recording

Full HD @30/60 fps
HD @30 fps

Full HD @30 fps

N/A

Battery

Battery Rating

Excellent

Very Good

Capacity

7000 mAh

6000 mAh

5000 mAh

Battery Type

Silicon Carbon

Li-ion

N/A

Quick Charging

Yes 60W Fast Charging 50% in 31 minutes

Yes 90W Flash Charging 50% in 20 minutes

Yes 25W Fast Charging

Battery Test Results

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.

17h 30m

N/A

11h 00m

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

1h 4m 0s

0h 43m 0s

1h 13m 14s

Storage

Internal Storage

128 GB / 256 GB

Storage Type

UFS 2.2

UFS 3.1

Expandable Storage

Yes Up to 2 TB

N/A

Yes Up to 2048 GB

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano (Hybrid)

SIM1: Nano SIM2: Nano

Network Support

5G 4G

VoLTE

Yes

SIM 1

5G Bands:

FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N41 / N77 / N78

5G Bands:

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

N/A

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)

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)

N/A

SIM 2

5G Bands:

FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N41 / N77 / N78

5G Bands:

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

N/A

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)

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)

N/A