vivo Y31 5G vs realme 15x

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vivo Y31 5G
₹14,689
@ Amazon
realme 15x
₹16,979
@ Amazon
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Summary

Spec Score

79%
81%

Release Date

13 Sep, 2025
01 Oct, 2025

Performance

Snapdragon 4 Gen 2
MediaTek Dimensity 6300
Octa Core (upto 2.2 GHz)
Octa Core (upto 2.4 GHz)
4 GB RAM
6 GB RAM

Display

6.68 inches (16.97 cm)
6.8 inches (17.27 cm)
LCD
IPS LCD
720x1608 px (HD+)
720x1570 px (HD+)
120 Hz Refresh Rate
144 Hz Refresh Rate

Rear Camera

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

Front Camera

8 MP
Wide Angle Lens
50 MP
Wide Angle Lens

Battery

6500 mAh
7000 mAh
44W Flash Charging
60W Super VOOC Charging
No Wireless Charging
No Wireless Charging

Storage

128 GB
128 GB
eMMC 5.1
UFS 2.2

User Ratings

4.2/5
(351 ratings)
4.4/5
(2,990 ratings)

Compare Prices

₹14,689
₹16,979

User Feedback

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General

Launch Date

Sep 13, 2025
(Official)
Oct 01, 2025
(Official)

Operating System

Android v15
Android v15

Custom UI

Funtouch OS
Realme UI

Performance

Performance Rating

Very Good
Very Good

Chipset

Qualcomm Snapdragon 4 Gen 2
MediaTek Dimensity 6300

CPU

Octa core

2.2 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
64 bit

Fabrication (The lower, the better)

4 nm
6 nm

Graphics (GPU)

Adreno 613
Mali-G57 MC2

RAM

4 GB / 6 GB
6 GB / 8 GB

RAM Type

LPDDR4X
LPDDR4X

Display

Display Rating

Excellent
Excellent

Display Type

LCD
IPS LCD

Screen Size

6.68 inches  (16.97 cm)
6.8 inches  (17.27 cm)

Resolution

720x1608 px (HD+)
720x1570 px (HD+)

Peak Brightness

1000 nits
1200 nits

HBM Brightness

1000 nits
1200 nits

Refresh Rate

120 Hz
144 Hz

Aspect Ratio

20:9
20:9

Pixel Density

264 ppi
254 ppi

Screen to Body Ratio (calculated)

84.2 %
87.52 %

Screen Protection

Yes
N/A

Bezel-less Display

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

Screen to Body Ratio (claimed by the brand)

N/A
90.4 %

Design

Height

166.14 mm
166.07 mm

Width

77.01 mm
77.93 mm

Thickness

8.39 mm
8.28 mm

Weight

209 grams
212 grams

Build Material

Back: Plastic
N/A

Water Resistance

Yes Water resistant IP68 IP69 (up to 30 minutes in a depth of 1.5 meter)
Yes Water resistant IP68 IP69 (up to 30 minutes in a depth of 2 meter)

Ruggedness

Dust proof Shock proof
Dust proof Shock proof

Rear Camera

Rear Camera Rating

Good
Very Good

Resolution

50 MP
Primary Cameraf/1.8 Wide Angle
50 MP
Primary Cameraf/1.8 Wide Angle 76° field-of-view28 mm focal length 1/2.88" sensor size IMX852 0.61µm pixel size
0.08 MP
f/3.0
N/A

Autofocus

Yes
Yes Phase Detection Autofocus

OIS

No
No

Flash

Yes LED Flash + Aura Light
Yes LED Flash

Image Resolution

8150 x 6150 Pixels
3072 x 4096 Pixels

Settings

Exposure compensation ISO control
N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
High Dynamic Range mode (HDR)
Cinema Mode

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus
N/A

Video Recording

1920x1080 @ 30 fps
1920x1080 @ 30 fps
1280x720 @ 30 @ 120 fps

Video Recording Features

N/A
Dual Video Recording
Slow Motion

Front Camera

Front Camera Rating

Very Good
Very Good

Resolution

8 MP
f/2.0 Wide Angle Primary Camera
50 MP
f/2.4 Wide Angle Primary Camera22 mm focal length 1/2.88" sensor size

Autofocus

No
N/A

Flash

N/A
Yes Screen flash

Camera Features

N/A
Wide Angle Selfie

Video Recording

1920x1080 @ 30 fps
3840x2160 @ 30 @ 60 fps
1920x1080 @ 30 @ 60 fps
1280x720 @ 30 fps

Battery

Battery Rating

Excellent
Excellent

Capacity

6500 mAh
7000 mAh

Battery Type

Li-ion
N/A

Quick Charging

Yes 44W Flash Charging 50% in 38 minutes
Yes 60W Super VOOC Charging

Storage

Internal Storage

128 GB
128 GB / 256 GB

Storage Type

eMMC 5.1
UFS 2.2

Expandable Storage

Yes Up to 2 TB
Yes

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

SIM Type

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

Network Support

5G 4G
5G 4G

VoLTE

Yes
Yes

SIM 1

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

SIM 2

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

SAR Value

Head: 1.130 W/kg Body: 0.986 W/kg
N/A

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)

Wi-Fi Features

Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v4.2
Yes v5.3

GPS

Yes with A-GPS Glonass
Yes with Glonass

NFC

No
No

Multimedia

Stereo Speakers

Yes
N/A

Audio Jack

USB Type-C
USB Type-C

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

Side
Side

Other Sensors

Light sensor Proximity sensor Accelerometer
Light sensor Proximity sensor Accelerometer Compass

Compare Prices

₹14,689
₹16,979