realme C100X vs Nothing Phone 4b

Comparing the realme C100X vs Nothing Phone 4b across performance, display, camera, battery and storage to help determine the better smartphone.

Here is the summary of the results:

Performance: Nothing Phone 4b runs at a higher processing speed of 2.3 GHz, while realme C100X runs at 1.8 GHz, making Nothing Phone 4b the better performer.

Display: realme C100X offers a screen size of 6.8 inches, while Nothing Phone 4b offers 6.77 inches, making realme C100X the larger display of the two. Nothing Phone 4b features a Super AMOLED display compared to realme C100X's LCD, making Nothing Phone 4b the better display of the two.

Rear Camera: Both realme C100X 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 realme C100X offers 5 MP, making Nothing Phone 4b better for front camera photography.

Battery: realme C100X offers a higher battery capacity with 8000 mAh, while Nothing Phone 4b offers 6000 mAh, making realme C100X better for longer battery life.

Storage: realme C100X offers higher internal storage with 64 GB, while Nothing Phone 4b offers 128 GB, making realme C100X the better option for storage.

realme C100X

₹15,499

@ Amazon

Nothing Phone 4b

₹34,099

@ Amazon

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Show Only Differences

Summary

Spec Score

74%

83%

Release Date

16 Jul, 2026

14 Jul, 2026

Performance


Unisoc T7250	Snapdragon 6 Gen 4
Octa Core (upto 1.8 GHz)	Octa Core (upto 2.3 GHz)
4 GB RAM	8 GB RAM

Display


6.8 inches (17.27 cm)	6.77 inches (17.2 cm)
LCD	Super AMOLED
720x1570 px (HD+)	1080x2344 px (FHD+)
120 Hz Refresh Rate	120 Hz Refresh Rate

Rear Camera


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

Front Camera


5 MP	16 MP

Battery


8000 mAh	6000 mAh
45W Fast Charging	33W Fast Charging

Storage

64 GB	128 GB
eMMC 5.1	UFS 2.2

User Ratings

2.3/5

(3 ratings)

N/A

Compare Prices

₹15,499 @ Amazon	₹34,099 @ Amazon
Not Available in any other store	₹34,999 @ Flipkart

User Feedback

General

Launch Date

Jul 16, 2026

(Official)

Jul 07, 2026

(Official)

Operating System

Android v16

OS Updates

N/A

3 Year

Security Updates

N/A

6 Year

Custom UI

Realme UI

Nothing OS

Performance

Performance Rating

Good

Very Good

Chipset

Unisoc T7250 T7250

Qualcomm Snapdragon 6 Gen 4 SM6650

Processor

Octa core

1.8 GHz, Dual core, Cortex A75 1.6 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

Adreno 810

RAM

4 GB

8 GB

RAM Type

LPDDR4X

Display

Display Rating

Very Good

Excellent

Display Type

LCD	Super AMOLED

Screen Size

6.8 inches (17.27 cm)

6.77 inches (17.2 cm)

Resolution

720x1570 px (HD+)

1080x2344 px (FHD+)

Brightness

700 nits

N/A

Peak Brightness

N/A

2000 nits

HBM Brightness

900 nits

1200 nits

Refresh Rate

120 Hz

Aspect Ratio

19.6:9

20:9

Pixel Density

254 ppi

381 ppi

Screen to Body Ratio (calculated)

86.97 %

87.32 %

Screen Protection

Yes

Bezel-less Display

Yes with punch-hole display

Screen to Body Ratio (claimed by the brand)

90.4 %

N/A

Design

Height

166.48 mm

164.4 mm

Width

78.23 mm

78.2 mm

Thickness

8.78 mm

8.6 mm

Weight

219 grams

210 grams

Build Material

Back: Plastic

N/A

Water Resistance

Yes IP6X IP64

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

Ruggedness

Dust proof Shock proof

Dust proof

Rear Camera

Rear Camera Rating

Good

Very Good

Resolution

50 MP
Primary Camera10x Digital Zoomf/1.8

50 MP
Primary Cameraf/1.81/2.76" sensor size

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

Autofocus

Yes Phase Detection Autofocus

Yes

OIS

N/A

Yes

Flash

Yes LED Flash

Yes

Camera Features

10 x Digital Zoom

N/A

Video Recording

Full HD @30 fps
HD @30/120 fps

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

Video Recording Features

Dual Video Recording
Slow Motion

Front Camera

Front Camera Rating

Good

Very Good

Resolution

5 MP
f/2.2 Primary Camera

16 MP
f/2.4 Primary Camera

Flash

Yes Screen flash

Video Recording

HD @30 fps

N/A

Battery

Battery Rating

Very Good

Capacity

8000 mAh

6000 mAh

Quick Charging

Yes 45W Fast Charging

Yes 33W Fast Charging 50% in 80 minutes

Storage

Internal Storage

64 GB

128 GB / 256 GB

Storage Type

eMMC 5.1

UFS 2.2

Expandable Storage

Yes

N/A

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano

Network Support

5G Not Supported 4G

5G 4G

VoLTE

Yes

SIM 1

N/A	5G Bands: FDD N1 / N3 / N5 / N8 / N28 TDD N40 / N41 / N77 / N78

N/A	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

4G Bands:

TD-LTE 2300(band 40)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)

5G Bands:

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

N/A	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)

Wi-Fi

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

Yes Wi-Fi 7 (802.11 a/b/g/n/ac/be/ax) MIMO

Wi-Fi Features

Mobile Hotspot

Wi-Fi Direct Mobile Hotspot

Bluetooth

Yes v5.2

Yes v6.0

GPS

Yes with A-GPS Glonass

Yes with Glonass

NFC

Yes

Multimedia

Stereo Speakers

N/A

Yes

Audio Jack

3.5 mm, USB Type-C

USB Type-C

Sensors

Fingerprint Sensor

Yes

Fingerprint Sensor Position

Side

On-screen

Fingerprint Sensor Type

N/A

Optical

Other Sensors

Light sensor Proximity sensor Accelerometer Compass Gyroscope

Compare Prices

₹15,499 @ Amazon	₹34,099 @ Amazon
Not Available in any other store	₹34,999 @ Flipkart