Xiaomi Redmi 15 vs vivo Y21 5G

Comparing the Xiaomi Redmi 15 vs vivo Y21 5G across performance, display, camera, battery, storage and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: vivo Y21 5G runs at a higher processing speed of 2.4 GHz, while Xiaomi Redmi 15 runs at 2.3 GHz, making vivo Y21 5G the better performer.

Display: Xiaomi Redmi 15 offers a screen size of 6.9 inches, while vivo Y21 5G offers 6.74 inches, making Xiaomi Redmi 15 the larger display of the two. Xiaomi Redmi 15 features a IPS LCD display compared to vivo Y21 5G's LCD, making Xiaomi Redmi 15 the better display of the two.

Rear Camera: Both Xiaomi Redmi 15 and vivo Y21 5G feature a 50 MP primary rear camera.

Front Camera: Xiaomi Redmi 15 offers a higher front camera resolution with 8 MP, while vivo Y21 5G offers 5 MP, making Xiaomi Redmi 15 better for front camera photography.

Battery: Xiaomi Redmi 15 offers a higher battery capacity with 7000 mAh, while vivo Y21 5G offers 6500 mAh, making Xiaomi Redmi 15 better for longer battery life.

Storage: Both Xiaomi Redmi 15 and vivo Y21 5G offer the same internal storage of 128 GB.

User Rating: Xiaomi Redmi 15 receives a higher user rating of 4.2, while vivo Y21 5G has a rating of 4.

Xiaomi Redmi 15

₹20,399

@ Amazon

vivo Y21 5G

₹18,999

@ Amazon

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Show Only Differences

Summary

Spec Score

78%

75%

Release Date

28 Aug, 2025

26 Mar, 2026

Performance


Snapdragon 6s Gen 3	MediaTek Dimensity 6300
Octa Core (upto 2.3 GHz)	Octa Core (upto 2.4 GHz)
6 GB RAM	4 GB RAM

Display


6.9 inches (17.53 cm)	6.74 inches (17.12 cm)
IPS LCD	LCD
1080x2340 px (FHD+)	1600x720 px (QHD (2k))
144 Hz Refresh Rate	120 Hz Refresh Rate

Rear Camera


50 MP Wide Angle Primary Camera	50 MP Primary Camera
N/A	0.08 MP Camera

Front Camera


8 MP Wide Angle Lens	5 MP

Battery


7000 mAh	6500 mAh
33W Fast Charging	44W
No Wireless Charging	N/A

Storage

128 GB	128 GB
UFS 2.2	UFS 2.2

Expert Review

7.0/10

Read Expert Review

N/A

Pros

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

Device yet to be reviewed

Cons

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

Device yet to be reviewed

User Ratings

4.2/5

(4,952 ratings)

4/5

(59 ratings)

Benchmarks (The higher, the better)

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

Compare Prices

₹20,399

@ Amazon

₹18,999

@ Amazon

Video

1 Video

There are no videos available for the device.

User Feedback

General

Launch Date

Aug 19, 2025

(Official)

Mar 23, 2026

(Official)

Operating System

Android v15

Android v16

OS Updates

2 Year

N/A

Security Updates

4 Year

N/A

Custom UI

HyperOS

Origin OS

Performance

Performance Rating

Very Good

Good

Chipset

Qualcomm Snapdragon 6s Gen 3

MediaTek Dimensity 6300 MT6835

Processor

Octa core

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

Octa core

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

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

6 nm

Graphics (GPU)

Adreno 619

Mali-G57 MC2

RAM

6 GB / 8 GB

4 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.

463,289

N/A

Bootup Time (The lower, the better)

34.0 s

N/A

Gaming Test Results

Battery Drain* (The lower, the better)

6.0 %

N/A

Heating* (The lower, the better)

23.7 %

N/A

* after 30 mins of gaming

Display

Display Rating

Excellent

Display Type

IPS LCD

LCD

Screen Size

6.9 inches (17.53 cm)

6.74 inches (17.12 cm)

Resolution

1080x2340 px (FHD+)

1600x720 px (QHD (2k))

Peak Brightness

850 nits

N/A

HBM Brightness

N/A

1200 nits

Refresh Rate

144 Hz

120 Hz

Aspect Ratio

19.5:9

20:9

Pixel Density

374 ppi

260 ppi

Screen to Body Ratio (calculated)

86.04 %

85.03 %

Bezel-less Display

Yes with punch-hole display

Design

Height

168.48 mm

167.40 mm

Width

80.45 mm

77.10 mm

Thickness

8.40 mm

8.39 mm

Weight

217 grams

209 grams

Build Material

Back: Plastic

Water Resistance

Yes Splash proof IP64

Yes Water resistant IP65

Ruggedness

Dust proof

Rear Camera

Rear Camera Rating

Good

Resolution

50 MP
Primary Cameraf/1.75 Wide Angle

50 MP
Primary Cameraf/1.8

N/A	0.08 MP f/3.0

Autofocus

Yes

OIS

N/A

Flash

Yes LED Flash

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)

N/A

Camera Features

Digital Zoom
Auto Flash
Face detection
Filters
Touch to focus

N/A

Video Recording

Full HD @30 fps

N/A

Front Camera

Front Camera Rating

Very Good

Good

Resolution

8 MP
f/2.2 Wide Angle Primary Camera

5 MP
f/2.2 Primary Camera

Autofocus

N/A

Flash

N/A	Yes Screen flash

Video Recording

Full HD @30 fps

N/A

Battery

Battery Rating

Very Good

Capacity

7000 mAh

6500 mAh

Battery Type

Silicon Carbon

Li-ion

Quick Charging

Yes 33W Fast Charging

Yes 44W 100% in 73 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.

14h 54m

N/A

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

1h 18m 0s

N/A

Storage

Internal Storage

128 GB / 256 GB

128 GB

Storage Type

UFS 2.2

Expandable Storage

Yes Up to 2 TB

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano (Hybrid)

Network Support

5G 4G

VoLTE

Yes

SIM 1

5G Bands:

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

5G Bands:

FDD N1 / N3 / N5 / N7 / N8 / N20 / N28 / N66 / N71
TDD N38 / 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)
FD-LTE 1700(band 66) / 2100(band 1) / 600(band 71) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) / 850(band 19) / 800(band 20)

SIM 2

5G Bands:

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

5G Bands:

FDD N1 / N3 / N5 / N7 / N8 / N20 / N28 / N66 / N71
TDD N38 / 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)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) / 850(band 19) / 800(band 20) / 600(Band 71) / 1700(band 66)