Xiaomi Redmi 15 vs Nothing Phone 4b

Comparing the Xiaomi Redmi 15 vs Nothing Phone 4b across performance, display, camera, battery, storage and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: Both Xiaomi Redmi 15 and Nothing Phone 4b run at the same processing speed of 2.3 GHz.

Display: Xiaomi Redmi 15 offers a screen size of 6.9 inches, while Nothing Phone 4b offers 6.77 inches, making Xiaomi Redmi 15 the larger display of the two. Nothing Phone 4b features a Super AMOLED display compared to Xiaomi Redmi 15's IPS LCD, making Nothing Phone 4b the better display of the two.

Rear Camera: Both Xiaomi Redmi 15 and Nothing Phone 4b feature a 50 MP primary rear camera.

Front Camera: Nothing Phone 4b offers a higher front camera resolution with 16 MP, while Xiaomi Redmi 15 offers 8 MP, making Nothing Phone 4b better for front camera photography.

Battery: Xiaomi Redmi 15 offers a higher battery capacity with 7000 mAh, while Nothing Phone 4b offers 6000 mAh, making Xiaomi Redmi 15 better for longer battery life.

Storage: Both Xiaomi Redmi 15 and Nothing Phone 4b offer the same internal storage of 128 GB.

User Rating: Nothing Phone 4b receives a higher user rating of 4.3, while Xiaomi Redmi 15 has a rating of 4.2.

Xiaomi Redmi 15

₹22,990

@ Flipkart

Nothing Phone 4b

₹30,399

@ Amazon

Summary

Spec Score

78%

83%

80%

Release Date

28 Aug, 2025

14 Jul, 2026

19 Oct, 2026

Performance


Snapdragon 6s Gen 3	Snapdragon 6 Gen 4	Samsung Exynos 1330
Octa Core (upto 2.3 GHz)	Octa Core (upto 2.3 GHz)	Octa Core (upto 2.4 GHz)
6 GB RAM	8 GB RAM	4 GB/ 6 GB/ 8 GB/ RAM

Display


6.9 inches (17.53 cm)	6.77 inches (17.2 cm)	6.7 inches (17.02 cm)
IPS LCD	Super AMOLED	Super AMOLED
1080x2340 px (FHD+)	1080x2344 px (FHD+)	1080x2340 px (FHD+)
144 Hz Refresh Rate	120 Hz Refresh Rate	90 Hz Refresh Rate

Rear Camera


50 MP Wide Angle Primary Camera	50 MP Primary Camera	50 MP Wide Angle Primary Camera
N/A	8 MP Ultra-Wide Angle Camera	5 MP Ultra-Wide Angle Camera
N/A	N/A	2 MP Macro Camera

Front Camera


8 MP Wide Angle Lens	16 MP	13 MP Wide Angle Lens

Battery


7000 mAh	6000 mAh	5000 mAh
33W Fast Charging	33W Fast Charging	25W Fast Charging
No Wireless Charging	N/A	No Wireless Charging

Storage

128 GB	128 GB	128 GB
UFS 2.2	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

Device yet to be reviewed

Cons

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

Device yet to be reviewed

Device yet to be reviewed

User Ratings

4.2/5

(4,671 ratings)

4.3/5

(1,090 ratings)

N/A

Benchmarks (The higher, the better)

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

Compare Prices

₹22,990

@ Flipkart

₹30,399

@ Amazon

₹17,999

@ Flipkart

Video

1 Video

There are no videos available for the device.

User Feedback

General

Launch Date

Aug 19, 2025

(Official)

Jul 07, 2026

(Official)

N/A

Operating System

Android v15

Android v16

Android v15

OS Updates

2 Year

3 Year

5 Year

Security Updates

4 Year

6 Year

5 Year

Custom UI

HyperOS

Nothing OS

Samsung One UI

Performance

Performance Rating

Good

Very Good

Good

Chipset

Qualcomm Snapdragon 6s Gen 3

View Details

Qualcomm Snapdragon 6 Gen 4 SM6650

View Details

Samsung Exynos 1330

View Details

Processor

Octa core

2.3 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

Octa core

2.4 GHz, Dual core, Cortex A78 2 GHz, Hexa Core, Cortex A55

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

6 nm

4 nm

5 nm

Graphics (GPU)

Adreno 619

Adreno 810

Mali-G68 MP2

RAM

6 GB / 8 GB

4 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

Super AMOLED

Screen Size

6.9 inches (17.53 cm)

6.77 inches (17.2 cm)

6.7 inches (17.02 cm)

Resolution

1080x2340 px (FHD+)

1080x2344 px (FHD+)

1080x2340 px (FHD+)

Peak Brightness

850 nits

2000 nits

1100 nits

HBM Brightness

N/A

1200 nits

800 nits

PWM Dimming

N/A

480 Hz

N/A

Refresh Rate

144 Hz

120 Hz

90 Hz

Touch Sampling Rate

288 Hz

1000 Hz

N/A

Aspect Ratio

19.5:9

20:9

19.5:9

Pixel Density

374 ppi

381 ppi

387 ppi

Screen to Body Ratio (calculated)

86.04 %

87.32 %

85.86 %

Screen Protection

N/A

Yes

Corning Gorilla Glass Victus

Bezel-less Display

Yes with punch-hole display

Yes with notch

Screen to Body Ratio (claimed by the brand)

N/A

84.70 %

Design

Height

168.48 mm

164.4 mm

Width

80.45 mm

78.2 mm

77.9 mm

Thickness

8.40 mm

8.6 mm

7.5 mm

Weight

217 grams

210 grams

192 grams

Build Material

Back: Plastic

N/A

Back: Glass Fiber

Water Resistance

Yes Splash proof IP64

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

Yes Splash proof IP54

Ruggedness

Dust proof

Rear Camera

Rear Camera Rating

Good

Very Good

Resolution

50 MP
Primary Cameraf/1.75 Wide Angle

50 MP
Primary Cameraf/1.81/2.76" sensor size

50 MP
Primary Camera10x Digital Zoomf/1.8 Wide Angle1/2.76" sensor size S5KJN1 0.64µm pixel size

N/A

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

5 MP
f/2.2 Ultra-Wide Angle Camera1/5.0" sensor size 1.12µm pixel size

N/A

2 MP
f/2.4 Macro Camera1/5.0" sensor size 1.75µm pixel size

Autofocus

Yes

OIS

Yes

Flash

Yes LED Flash

Yes

Yes LED Flash

Image Resolution

8150 x 6150 Pixels

N/A

8160 x 6120 Pixels

Settings

Exposure compensation ISO control

N/A

Exposure compensation ISO control

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

N/A

Continuous Shooting
High Dynamic Range mode (HDR)
Macro Mode

Camera Features

Digital Zoom
Auto Flash
Face detection
Filters
Touch to focus

N/A

10 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

Full HD @30 fps

4k @30 fps
Full HD @30/60 fps

Full HD @30 fps
HD @120 fps

Video Recording Features

N/A

Dual Video Recording
Slow Motion

Video Pro Mode

Front Camera

Front Camera Rating

Very Good

Resolution

8 MP
f/2.2 Wide Angle Primary Camera

16 MP
f/2.4 Primary Camera

13 MP
f/2.0 Wide Angle Primary Camera1/3.1" sensor size 1.12µm pixel size

Autofocus

N/A

Flash

N/A

Yes Screen flash

Camera Features

N/A

Fixed Focus

Video Recording

Full HD @30 fps

N/A

Full HD @30 fps

Battery

Battery Rating

Very Good

Capacity

7000 mAh

6000 mAh

5000 mAh

Battery Type

Silicon Carbon

N/A

Li-ion

Quick Charging

Yes 33W Fast Charging

Yes 33W Fast Charging 50% in 80 minutes

Yes 25W Fast Charging

Reverse Charging

Yes 18W Reverse Charging

Yes 7.5W Reverse Charging

N/A

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

N/A

Storage

Internal Storage

128 GB / 256 GB

128 GB

Storage Type

UFS 2.2

Expandable Storage

Yes Up to 2 TB

N/A

Yes Up to 2 TB

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano (Hybrid)

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 / N78

5G Bands:

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

5G Bands:

FDD N1 / N3 / N5 / N7 / N8 / N20 / N26 / N28 / N66
TDD N38 / N40 / N41 / N66 / 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) / 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) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20) / 850(band 26) / 700 (band 12)

SIM 2

5G Bands:

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

5G Bands:

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

5G Bands:

FDD N1 / N3 / N5 / N7 / N8 / N20 / N26 / N28 / N66
TDD N38 / N40 / N41 / N66 / 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) / 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) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 800(band 20) / 850(band 26) / 1700(band 66) / 700 (band 12)