Xiaomi Redmi K40 vs Xiaomi Redmi Note 15

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

Audio Jack
-	3.5mm

Battery

Capacity
4520 mAh	5800mAh
Quick Charging
Yes, Fast, 33W: 100 % in 52 minutes	45W fast charging
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	Yes
Front Camera
-	20MP
Image Resolution
8000 x 6000 Pixels	-
Rear Camera
-	108MP + 8MP + 2MP
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

Build Material
-	Metal frame finish
Colours
Glossy Black, Icy White, Dreamland	-
Height
163.7 mm	-
Thickness
7.8 mm	-
Water Resistance
-	IP66 dust/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
1300 nits	-
Display Type
Super AMOLED	AMOLED
HDR 10 / HDR+ support
Yes, HDR 10+	-
Pixel Density
395 ppi	-
Refresh Rate
120 Hz	120Hz
Resolution
-	1.5K
Screen Protection
Corning Gorilla Glass v5	-
Screen Size
6.67 inches (16.94 cm)	6.77-inch
Screen to Body Ratio (calculated)
85.88 %	-
Touch Screen
Yes, Capacitive Touchscreen, Multi-touch	-

General

Also Known As
-	Xiaomi Redmi Note 15
Brand
Xiaomi	Xiaomi
Custom UI
MIUI	HyperOS 2.0
Launch Date
-	January 6, 2026
Model
-	Redmi Note 15
Operating System
Android v11	Android 15

Multimedia

Audio Jack
USB Type-C	-
FM Radio
No	-
Fm Radio
No	-
Loudspeaker
Yes	-

Network & Connectivity

Bluetooth
Yes, v5.1	5.3
GPS
Yes with A-GPS, Glonass	Yes
NFC
Yes	-
Network Support
5G Supported in India, 4G Supported in India, 3G, 2G	5G
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	Yes
Volte
Yes	-
Wi-Fi
Yes, Wi-Fi 5 (802.11 b/g/n/ac) 5GHz	Wi-Fi 6
Wi-Fi Calling
-	Yes
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	Adreno 710 GPU
Processor
-	Snapdragon 6 Gen 3
RAM
-	8GB/12GB
RAM Type
LPDDR5	-
RAM type
LPDDR5	-
Ram
6 GB	-

Sensors

Fingerprint Sensor
Yes	-
Fingerprint Sensor Position
Side	-
Other Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope	-

Storage

Expandable Memory
No	-
Internal Memory
128 GB	128GB/256GB
Storage Type
UFS 3.1	UFS 2.2