Oppo K13x vs vivo Y31 – Price, Specs & Features

Q: Which phone has better performance, the Oppo K13x or the vivo Y31?

In this performance comparison, the vivo Y31 with its Snapdragon 4 Gen 2 (4nm) performs better than the Oppo K13x with the Dimensity 6300 (6nm), thanks to superior chipset efficiency.

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Oppo K13x

Dimensity 6300
6 nm
6000 mAh
45W
6.67"
720 x 1604 pixels
50 MP
1080p@30/60fps
Specs

vivo Y31

Snapdragon 4 Gen 2
4 nm
6500 mAh
44W
6.68"
720 x 1608 pixels
50 MP
1080p@30fps
Specs

vivo Y31

General

Launch Date

June 23, 2025

September 15, 2025

Availability

Available Now

Android 15

Custom UI

ColorOS 15

Funtouch 15

OS Updates

2 Years

1 Years

Security Updates

3 Years

1 Years

AI Features

Google Gemini, AI Writer, AI Summary, Screen Translator, AI Eraser, AI Motion, AI Portrait and More

AI Erase, AI SuperLink, Circle to Search, AI Screen Translation and more

Body

Dimensions

165.7 x 76.2 x 7.9 mm

166.1 x 77 x 8.4 mm

Thickness

7.9 mm

8.4 mm

Weight

194 g

209 g

IP Rating

IP65 (dust tight and water resistant (low pressure water jets), MIL-STD-810H compliant*)

IP69 (dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min), MIL-STD-810H compliant*, also IP68 rated)

Display

Size

6.67 inches

6.68 inches

Type

IPS LCD

Refresh Rate

120 Hz

Peak Brightness

1000 nits

Resolution

720 x 1604 pixels

720 x 1608 pixels

Pixel Density

264 ppi

Aspect Ratio

20:9

Screen to Body Ratio

85.2 %

84.0 %

Protection

Gorilla Glass 7i

Performance

Chipset¹

Mediatek Dimensity 6300

Qualcomm Snapdragon 4 Gen 2

Process Size

6 nm

4 nm

CPU

Octa-core
2x2.4 GHz Cortex-A76
6x2.0 GHz Cortex-A55

Octa-core
2x2.2 GHz Cortex-A78
6x1.95 GHz Cortex-A55

GPU

Mali-G57 MC2

Adreno 613

RAM & Storage

4GB 128GB (UFS 2.2)
6GB 128GB (UFS 2.2)
8GB 256GB (UFS 2.2)

4GB 128GB (eMMC 5.1)
6GB 128GB (eMMC 5.1)

RAM Type

LPDDR4X

Expandable Memory

Yes

Camera

Main Camera

50 MP
OmniVision OV50D, f/1.8, (wide), PDAF

2 MP,
f/2.4, (Mono)

50 MP
f/1.8, (wide), PDAF

0.08 MP
f/3.0

OIS

Features

LED flash, HDR, panorama

Ring-LED flash, panorama

Video Recording

1080p@30/60fps

1080p@30fps

Selfie Camera

8 MP
GalaxyCore GC08A8, f/2.0, (wide)

8 MP
f/2.0, (wide)

Selfie Video Recording

1080p@30fps

Connectivity

SIM

Dual SIM
SIM1: Nano, SIM2: Nano (Hybrid)

Dual SIM (Nano + Nano (Hybrid))

5G Support

Yes

9 5G bands
n1, n3, n5, n8, n28, n40, n41, n77, n78

Yes

8 5G bands
n1, n3, n5, n8, n28, n40, n77, n78

VoLTE

Yes

Wi-Fi

Wi-Fi 5

Wi-Fi Details

802.11 a/b/g/n/ac 5GHz

Wi-Fi Features

Mobile Hotspot

USB

USB Type-C 2.0, OTG

Bluetooth

5.4

4.2

NFC

GPS

Yes with A-GPS, Glonass

Infrared

UWB (Ultra Wideband)

Battery

Capacity

6000 mAh

6500 mAh

Type

Li-Po

Li-Ion

Removable

Wired charging

45W

44W

Charging Speed

50% in 37 min

50% in 38 min

Reverse Wired Charging

Yes

Wireless Charging

Reverse Wireless Charging

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

Yes

FM Radio

Extra Features

Sensors

Side-mounted fingerprint sensor, accelerometer, proximity, compass

Colors and Pricing

Colors

Midnight Violet, Sunset Peach, Breeze Blue, Mist White

Rose Red, Diamond Green

Price in India

₹11999

₹14999

FAQs

Which phone has better performance?

In this performance comparison, the vivo Y31 with its Qualcomm Snapdragon 4 Gen 2 (4nm) performs better than the Oppo K13x with the Mediatek Dimensity 6300 (6nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

Oppo K13x offers 2 years of OS updates, whereas vivo Y31 provides 1 years. For security updates, Oppo K13x offers 3 years of support compared to vivo Y31's 1 years.

Which phone has a better display?

Both Oppo K13x and vivo Y31 use LCD screens. Both smartphones offer the same 120 Hz refresh rate. Both devices deliver the same brightness level at 1000 nits. Both phones have the same screen resolution.

Which phone has a bigger battery and faster charging?

vivo Y31 features a larger 6500 mAh battery, potentially delivering better battery life. Oppo K13x also supports faster wired charging at 45W, compared to 44W on vivo Y31.

Which phone has better water and dust resistance?

vivo Y31 offers better protection against water and dust with an IP69 rating.

Can I buy these phones on Amazon?

vivo Y31 – Check price here

¹ Scores can vary even with the same chipset due to RAM, thermals, and software optimization.