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: vivo Y400 scores higher on the Geekbench Multi-Core test with 2,146, while realme 15T scores 2,049, making vivo Y400 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 offers a higher battery capacity with 7000 mAh, while vivo Y400 offers 6000 mAh, making realme 15T better for longer battery life.

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

₹28,449

@ Amazon

vivo Y400

₹28,999

@ Amazon

Summary

Release Date

06 Sep, 2025

07 Aug, 2025

14 Jul, 2026

Performance


MediaTek Dimensity 6400 Max	Snapdragon 4 Gen 2	Snapdragon 6 Gen 4
Octa Core (upto 2.5 GHz)	Octa Core (upto 2.2 GHz)	Octa Core (upto 2.3 GHz)
8 GB RAM	8 GB RAM	8 GB RAM

Display


6.57 inches (16.69 cm)	6.67 inches (16.94 cm)	6.77 inches (17.2 cm)
AMOLED	AMOLED	Super AMOLED
1080x2372 px (FHD+)	1080x2400 px (FHD+)	1080x2344 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 Primary Camera
2 MP Depth Camera	2 MP Depth Camera	8 MP Ultra-Wide Angle Camera

Front Camera


50 MP Wide Angle Lens	32 MP Wide Angle Lens	16 MP

Battery


7000 mAh	6000 mAh	6000 mAh
60W Fast Charging	90W Flash Charging	33W Fast Charging
No Wireless Charging	No Wireless Charging	N/A

Storage

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

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

(7,750 ratings)

4.4/5

(1,029 ratings)

N/A

Benchmarks (The higher, the better)

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

Compare Prices

₹28,449

@ Amazon

₹28,999

@ Amazon

₹34,999

@ Flipkart

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)

Jul 07, 2026

(Official)

Operating System

Android v15

Android v16

OS Updates

3 Years

2 Years

3 Year

Security Updates

4 Years

3 Years

6 Year

Custom UI

Realme UI

Funtouch OS

Nothing OS

Performance

Performance Rating

Good

Very Good

Chipset

MediaTek Dimensity 6400 Max

Qualcomm Snapdragon 4 Gen 2 SM4450

Qualcomm Snapdragon 6 Gen 4 SM6650

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

2.3 GHz, Single core, Cortex A720 2.2 GHz, Tri core, Cortex A720 1.8 GHz, Quad core, Cortex A520

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

6 nm

4 nm

Graphics (GPU)

Mali-G57 MC2

Adreno 613

Adreno 810

RAM

8 GB / 12 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.

448,625

478,134

N/A

Bootup Time (The lower, the better)

34.0 s

24.0 s

N/A

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

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

Display Type

AMOLED

Super AMOLED

Screen Size

6.57 inches (16.69 cm)

6.67 inches (16.94 cm)

6.77 inches (17.2 cm)

Resolution

1080x2372 px (FHD+)

1080x2400 px (FHD+)

1080x2344 px (FHD+)

Peak Brightness

4000 nits

1800 nits

2000 nits

HBM Brightness

1400 nits

1200 nits

Refresh Rate

120 Hz

Aspect Ratio

19.8:9

20:9

Pixel Density

397 ppi

394 ppi

381 ppi

Screen to Body Ratio (calculated)

88.8 %

87.51 %

87.32 %

Screen Protection

N/A

Yes

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

164.4 mm

Width

75.19 mm

75.31 mm

78.2 mm

Thickness

7.79 mm

7.90 mm

8.6 mm

Weight

181 grams

197 grams

210 grams

Build Material

Back: Plastic

N/A

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 Water resistant IP64 (up to 20 minutes in a depth of 0.25 meter)

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/1.81/2.76" sensor size

2 MP
f/2.4 Depth Camera22 mm focal length

2 MP
f/2.4 Depth Camera

8 MP
f/2.2 Ultra-Wide Angle Camera1/4.0" sensor size

Autofocus

Yes

OIS

Yes

Flash

Yes LED Flash

Yes Dual-color LED Flash + Aura Light

Yes

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

N/A

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 @30/60 fps

Video Recording Features

Dual Video Recording

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

16 MP
f/2.4 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

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 33W Fast Charging 50% in 80 minutes

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

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

1h 4m 0s

0h 43m 0s

N/A

Storage

Internal Storage

128 GB / 256 GB

Storage Type

UFS 2.2

UFS 3.1

UFS 2.2

Expandable Storage

Yes Up to 2 TB

N/A

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

5G Bands:

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

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)

4G Bands:

TD-LTE 2600(band 38) / 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 / N41 / N77 / N78

5G Bands:

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

5G Bands:

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

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)

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 850(band 5)