realme 15T vs vivo Y400

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realme 15T
₹20,979
@ Amazon
vivo Y400
₹21,999
@ Amazon
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Summary

Spec Score

82%
83%

Release Date

06 Sep, 2025
07 Aug, 2025

Performance

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

Display

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

Rear Camera

50 MP
Wide Angle Primary Camera
50 MP
Wide Angle Primary Camera
2 MP
Depth Camera
2 MP
Depth Camera

Front Camera

50 MP
Wide Angle Lens
32 MP
Wide Angle Lens

Battery

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

Storage

128 GB
128 GB
UFS 2.2
UFS 3.1

Expert Review

8.0/10
7.6/10

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

Cons

  • Less powerful than rivals
  • Weak low-light performance
  • Lacks ultrawide camera
  • Lacks raw performance
  • Overexposed images in daylight

User Ratings

4.3/5
(4,077 ratings)
4.4/5
(828 ratings)

Benchmarks (The higher, the better)

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

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₹20,979
₹21,999

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Video

Videos
1 Video
Videos
1 Video

User Feedback

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General

Launch Date

Sep 06, 2025
(Official)
Aug 07, 2025
(Official)

Operating System

Android v15
Android v15

OS Updates

3 Years
2 Years

Security Updates

4 Years
3 Years

Custom UI

Realme UI
Funtouch OS

Performance

Performance Rating

Very Good
Very Good

Chipset

MediaTek Dimensity 6400 Max
Qualcomm Snapdragon 4 Gen 2 SM4450

CPU

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

Architecture (The higher, the better)

64 bit
64 bit

Fabrication (The lower, the better)

6 nm
4 nm

Graphics (GPU)

Mali-G57 MC2
Adreno 613

RAM

8 GB / 12 GB
8 GB

RAM Type

LPDDR4X
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

Bootup Time (The lower, the better)

34.0 s
24.0 s

Gaming Test Results

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

2,123.0
1,415.0

Battery Drain* (The lower, the better)

5.0 %
7.0 %

Heating* (The lower, the better)

10.6 %
13.9 %
* after 30 mins of gaming

Display

Display Rating

Excellent
Excellent

Display Type

AMOLED
AMOLED

Screen Size

6.57 inches  (16.69 cm)
6.67 inches  (16.94 cm)

Resolution

1080x2372 px (FHD+)
1080x2400 px (FHD+)

Peak Brightness

4000 nits
1800 nits

HBM Brightness

1400 nits
1200 nits

Refresh Rate

120 Hz
120 Hz

Aspect Ratio

19.8:9
20:9

Pixel Density

397 ppi
394 ppi

Screen to Body Ratio (calculated)

88.8 %
87.51 %

Bezel-less Display

Yes with punch-hole display
Yes with punch-hole display

Screen to Body Ratio (claimed by the brand)

93.0 %
91.9 %

Design

Height

158.36 mm
162.99 mm

Width

75.19 mm
75.31 mm

Thickness

7.79 mm
7.90 mm

Weight

181 grams
197 grams

Build Material

Back: Plastic
Back: Plastic

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)

Ruggedness

Dust proof
Dust proof

Rear Camera

Rear Camera Rating

Very 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
2 MP
f/2.4 Depth Camera22 mm focal length
2 MP
f/2.4 Depth Camera

Autofocus

Yes
Yes

OIS

No
Yes

Flash

Yes LED Flash
Yes Dual-color LED Flash + Aura Light

Image Resolution

8150 x 6150 Pixels
8150 x 6150 Pixels

Settings

Exposure compensation ISO control
Exposure compensation ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
Continuous Shooting
High Dynamic Range mode (HDR)
SuperMoon

Camera Features

10 x Digital Zoom
Auto Flash
Face detection
Touch to focus
Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

1920x1080 @ 30 @ 60 fps
1280x720 @ 30 @ 60 fps
1920x1080 @ 30 fps

Video Recording Features

Dual Video Recording
Dual Video Recording

Front Camera

Front Camera Rating

Very Good
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

Autofocus

No
N/A

Video Recording

1920x1080 @ 30 @ 60 fps
1280x720 @ 30 fps
1920x1080 @ 30 fps

Compare Camera Samples

Battery

Battery Rating

Excellent
Excellent

Capacity

7000 mAh
6000 mAh

Battery Type

Silicon Carbon
Li-ion

Quick Charging

Yes 60W Fast Charging 50% in 31 minutes
Yes 90W Flash Charging 50% in 20 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

Storage

Internal Storage

128 GB / 256 GB
128 GB / 256 GB

Storage Type

UFS 2.2
UFS 3.1

Expandable Storage

Yes Up to 2 TB
N/A

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

SIM Type

SIM1: Nano SIM2: Nano (Hybrid)
SIM1: Nano SIM2: Nano

Network Support

5G 4G
5G 4G

VoLTE

Yes
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
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)
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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
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)
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SAR Value

N/A
Head: 0.99 W/kg Body: 0.80 W/kg

Wi-Fi

Yes Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz
Yes Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz

Wi-Fi Features

Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v5.3
Yes v5.0

GPS

Yes with A-GPS Glonass
Yes with Glonass

NFC

No
No

IR Blaster

Yes
N/A

Multimedia

Stereo Speakers

Yes
Yes

Audio Jack

USB Type-C
USB Type-C

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

On-screen
On-screen

Fingerprint Sensor Type

Optical
Optical

Other Sensors

Light sensor Proximity sensor Accelerometer Compass
Light sensor Proximity sensor Accelerometer Compass Gyroscope

Compare Prices

₹20,979
₹21,999