Realme 15x 5g vs Xiaomi Redmi K40

Should you buy Realme 15x 5G or Xiaomi Redmi K40? Find out which mobile phone is best for you - compare the two models on the basis of price... and key specs like performance, price, camera, display, ram, storage, battery capacity, operating system, Network Connectivity, Multimedia and more.

SpecificationsRealme 15x 5GXiaomi Redmi K40
Price16980.022490.0
Camera50MP + 5MP And 50MP48 MP + 8 MP + 5 MP And 20 MP
Operating SystemAndroid 15 with Realme UI 6.0Android v11
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11% OFF
Discounted price:₹16,980 Original price:₹18,999
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₹22,490
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Key Specs

Battery

- 4520 mAh

Display

- 6.67 inches (16.94 cm)

Front Camera

- 20 MP

Processor

- Qualcomm Snapdragon 870

RAM

- 6 GB

Rear Camera

- 48 MP + 8 MP + 5 MP

Audio

Stereo Speakers

Yes -

Battery

Capacity

7000 mAh 4520 mAh

Quick Charging

60W SuperVOOC Yes, Fast, 33W: 100 % in 52 minutes

Removable

- No

Type

- Li-Polymer

USB Type-C

Yes Yes

Camera

Autofocus

- Yes

Camera Features

- Digital Zoom Auto Flash Face detection Touch to focus

Camera Setup

- Single

Flash

- Yes, LED Flash

Front Camera

50MP -

Image Resolution

- 8000 x 6000 Pixels

Rear Camera

50MP + 5MP -

Resolution

- 20 MP f/2.4, Wide Angle, Primary Camera(3.4" sensor size, 0.8µm pixel size)

Sensor

- IMX582, Exmor-RS CMOS Sensor

Settings

- Exposure compensation, ISO control

Shooting Modes

- Continuous Shooting High Dynamic Range mode (HDR)

Video Recording

- 1920x1080 @ 30 fps

Design

Colours

- Glossy Black, Icy White, Dreamland

Height

- 163.7 mm

Thickness

- 7.8 mm

Water Resistance

IP69 dust and water resistance -

Weight

- 196 grams Below

Width

- 76.4 mm
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Display

Aspect Ratio

- 20:9

Bezelless Display

- Yes with punch-hole display

Brightness

1200 nits 1300 nits

Display Type

- Super AMOLED

HDR 10 / HDR+ support

- Yes, HDR 10+

Pixel Density

- 395 ppi

Refresh Rate

144Hz 120 Hz

Resolution

720x1570 pixels -

Screen Protection

- Corning Gorilla Glass v5

Screen Size

6.8-inch 6.67 inches (16.94 cm)

Screen to Body Ratio (calculated)

- 85.88 %

Touch Screen

- Yes, Capacitive Touchscreen, Multi-touch

General

Brand

Realme Xiaomi

Custom UI

- MIUI

Launch Date

October 1, 2025 -

Model

15x 5G -

Operating System

Android 15 with Realme UI 6.0 Android v11

Multimedia

Audio Jack

- USB Type-C

FM Radio

- No

Fm Radio

- No

Loudspeaker

- Yes

Network & Connectivity

Bluetooth

v5.3 Yes, v5.1

GPS

- Yes with A-GPS, Glonass

NFC

- Yes

Network Support

4G/5G 5G Supported in India, 4G Supported in India, 3G, 2G

SIM 1

- 5G Bands: FDD N1 / N3 / N28 TDD N41 / N77 / N78 4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available

SIM 2

- 4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available

SIM Size

- SIM1: Nano, SIM2: Nano

SIM Slot(s)

- Dual SIM, GSM+GSM

USB Connectivity

- Mass storage device, USB charging

Usb Connectivity

- Mass storage device, USB charging

VoLTE

- Yes

Volte

- Yes

Wi-Fi

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

Wi-Fi Features

- Mobile Hotspot

Performance

Architecture

- 64 bit

CPU

- Octa core (3.2 GHz, Single core, Kryo 585 + 2.42 GHz, Tri core, Kryo 585 + 1.8 GHz, Quad core, Kryo 585)

Chipset

- Qualcomm Snapdragon 870

Fabrication

- 7 nm

Graphics

- Adreno 650

Processor

MediaTek Dimensity 6300 -

Processor Fabrication

6nm -

RAM

6GB/8GB -

RAM Type

- LPDDR5

RAM type

- LPDDR5

Ram

- 6 GB

Sensors

Fingerprint Sensor

side-mounted fingerprint sensor Yes

Fingerprint Sensor Position

- Side

Other Sensors

- Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Storage

Expandable Memory

up to 2TB via MicroSD card No

Internal Memory

128GB/256GB 128 GB

Storage Type

UFS 2.2 storage UFS 3.1

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Each Mobiles has been benchmarked against ~31,000 other phones to calculate the score.

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