Xiaomi Redmi Note 15 5G (128GB / 6GB RAM) specifications and in-depth review

Xiaomi Redmi Note 15 5G (128GB / 6GB RAM)

Manufacturer: Xiaomi

The Xiaomi Redmi Note 15 5G is a mid-range smartphone built around a 6.77″ OLED panel running at a 120Hz refresh rate, delivering smooth visuals with an 8,000,000:1 contrast ratio and an always-on display feature. It runs Android 15 out of the box and comes in a 128GB storage and 6GB RAM configuration, housed in a slim 7.4 mm chassis weighing 178 g. Despite its relatively compact profile, the device carries an IP68 rating, making it resistant to submersion at depths of up to 1.5 m.

Under the hood, the Redmi Note 15 5G is powered by the Qualcomm Snapdragon 6 Gen 3, a 4 nm octa-core chipset paired with an Adreno 710 GPU clocked at 800 MHz and LPDDR5 RAM running at 2750 MHz. The rear camera system features a dual-lens setup led by a 50 MP main sensor capable of recording 4K video at 30 fps, complemented by phase-detection autofocus and a range of manual controls. Connectivity options include 5G, Wi-Fi 5, Bluetooth 5.1, NFC, and an infrared sensor, while the 5800 mAh battery supports 45W wired fast charging. An external memory slot and USB Type-C port round out the feature set.

Pros
  • The IP68 rating provides protection against submersion at depths of up to 1.5 m, which is uncommon at this segment
  • The 5800 mAh battery paired with 45W wired fast charging offers a large capacity with reasonably quick replenishment
  • The 6.77-inch OLED display with a 120Hz refresh rate and 8,000,000:1 contrast ratio delivers sharp, smooth visuals
  • LDAC support enables high-quality wireless audio streaming over Bluetooth
  • An infrared sensor adds the ability to control compatible home appliances directly from the device
  • The Snapdragon 6 Gen 3 is built on a 4 nm process with LPDDR5 RAM, offering an efficient and capable processing setup for everyday tasks
Cons
  • Optical image stabilization is absent on the rear camera, which can affect video and low-light photo quality
  • No wireless charging support limits flexibility when a cable is not available
  • The front camera is limited to 8 MP with no flash and a single lens, which restricts selfie quality in varied lighting
  • USB 2.0 speeds over the Type-C port limit wired data transfer performance
  • Wi-Fi support tops out at Wi-Fi 5, with no Wi-Fi 6 or higher available
  • There is no 3.5 mm headphone jack, requiring an adapter or wireless headphones for audio output
Who is this for?

This device is well suited to everyday users who want a large, visually capable screen for media consumption, thanks to its 6.77-inch OLED panel with a 120Hz refresh rate and an 8,000,000:1 contrast ratio. The 5800 mAh battery with 45W fast charging makes it a practical choice for people who spend long hours away from a power source and need reliable endurance. Its IP68 rating and dual SIM support also make it a reasonable fit for users who need some water resistance in daily situations and the flexibility of managing two lines on one device.

Who is this NOT for?

Users who rely heavily on camera performance in challenging conditions will find the lack of optical image stabilization and a BSI sensor limiting, particularly for handheld video or low-light photography. Those who demand the fastest wired data transfers or the latest wireless standards will be constrained by the USB 2.0 interface and Wi-Fi 5 ceiling. Additionally, users who prefer a fully wireless charging ecosystem or need a headphone jack for wired audio will find neither option available on this device.

Design:

water resistance None
weight 178 g
thickness 7.4 mm
width 75.4 mm
height 165 mm
volume 92.0634 cm³
Ingress Protection (IP) rating IP68
waterproof depth rating 1.5 m
has a rugged build
can be folded

The Xiaomi Redmi Note 15 5G measures 165 mm in height, 75.4 mm in width, and 7.4 mm in thickness, with a total volume of 92.0634 cm³ and a weight of 178 g. Despite the water resistance label reading none, the device carries an IP68 rating, meaning it is rated for submersion at depths of up to 1.5 m. The handset does not feature a rugged build and cannot be folded.

Display:

Display type OLED/AMOLED
screen size 6.77"
pixel density 388 ppi
resolution 1080 x 2392 px
refresh rate 120Hz
touch sampling rate 240Hz
has branded damage-resistant glass
supports HDR10
supports HDR10+
Always-On Display
supports Dolby Vision
contrast ratio 8000000:1
Has a secondary screen
has a touch screen

The Redmi Note 15 5G features a 6.77″ OLED/AMOLED touchscreen with a resolution of 1080 x 2392 px and a pixel density of 388 ppi, covered by branded damage-resistant glass. The panel operates at a 120Hz refresh rate with a touch sampling rate of 240Hz, and delivers a contrast ratio of 8,000,000:1 alongside an always-on display mode. HDR10, HDR10+, and Dolby Vision are not supported, and there is no secondary screen.

Performance:

internal storage 128GB
RAM 6GB
Chipset (SoC) name Qualcomm Snapdragon 6 Gen 3
GPU name Adreno 710
CPU speed 4 x 2.4 & 4 x 1.8 GHz
GPU clock speed 800 MHz
Has integrated LTE
RAM speed 2750 MHz
semiconductor size 4 nm
Supports 64-bit
DirectX version DirectX 12
Has integrated graphics
OpenGL version 3.2
OpenGL ES version 3.2
Uses big.LITTLE technology
CPU threads 8 threads
Has NX bit
Uses HMP
Has TrustZone
maximum memory bandwidth 25.6 GB/s
OpenCL version 2
memory channels 2
eMMC version 5.1
maximum memory amount 12GB
Thermal Design Power (TDP) 7W
DDR memory version 5
supported displays 1

The Redmi Note 15 5G is powered by the Qualcomm Snapdragon 6 Gen 3, a 4 nm octa-core SoC running eight threads across two clusters clocked at 4 x 2.4 GHz and 4 x 1.8 GHz, with a TDP of 7W and support for big.LITTLE and HMP scheduling. It is paired with 6GB of LPDDR5 RAM running at 2750 MHz across two memory channels, offering a maximum memory bandwidth of 25.6 GB/s and a maximum supported memory amount of 12GB, alongside 128GB of internal storage on an eMMC 5.1 interface. Graphics are handled by the integrated Adreno 710 GPU clocked at 800 MHz, supporting DirectX 12, OpenGL 3.2, OpenGL ES 3.2, and OpenCL 2, with output to one display. The chipset also includes integrated LTE, NX bit, and TrustZone security, and the platform is fully 64-bit compatible.

Cameras:

megapixels (main camera) 50 & 2 MP
Has a dual-lens (or multi-lens) main camera
megapixels (front camera) 8MP
has built-in optical image stabilization
video recording (main camera) 2160 x 30 fps
Has a dual-tone LED flash
number of flash LEDs 1
has a BSI sensor
has a CMOS sensor
has continuous autofocus when recording movies
Has phase-detection autofocus for photos
supports slow-motion video recording
has a built-in HDR mode
has manual exposure
has a flash
optical zoom 0x
has manual ISO
has a serial shot mode
has manual focus
has a front camera
Has laser autofocus
Shoots 360° panorama
has manual white balance
shoots raw
has touch autofocus
has manual shutter speed
can create panoramas in-camera
Has timelapse function
Has a front-facing LED flash
has a dual-lens (or multi-lens) front camera
supports HDR10 recording
supports Dolby Vision recording
has a front-facing camera under the display
Has a RGB LED flash
has 3D photo/video recording capabilities

The Redmi Note 15 5G features a dual-lens rear camera system led by a 50 MP main sensor accompanied by a 2 MP secondary lens, both using a CMOS sensor without back-side illumination or optical image stabilization. Focusing is handled through phase-detection autofocus and touch autofocus, with continuous autofocus available during video recording, though laser autofocus is absent. The main camera supports 4K video recording at 30 fps along with slow-motion capture, while HDR10 and Dolby Vision recording are not available. Manual controls include exposure, ISO, focus, and white balance, but manual shutter speed and RAW capture are not supported; burst mode, panorama, and timelapse round out the shooting options. A single LED flash is present on the rear, with no dual-tone or RGB flash, while the 8 MP front camera has no flash, no secondary lens, and is not positioned under the display.

Operating system:

Android version Android 15
has clipboard warnings
has location privacy options
has camera/microphone privacy options
has Mail Privacy Protection
has theme customization
can block app tracking
blocks cross-site tracking
has on-device machine learning
has notification permissions
has media picker
Can play games while they download
has dark mode
has Wi-Fi password sharing
has battery health check
has an extra dim mode
has focus modes
has dynamic theming
can offload apps
Has customizable notifications
has Live Text
has full-page screenshots
supports split screen
gets direct OS updates
has PiP
Can be used as a PC
Has sharing intents
has a child lock
Supports widgets
Is free and open source
Has offline voice recognition
has voice commands
Tracks the current position of a mobile device
is a multi-user system
has Quick Start

The Redmi Note 15 5G runs Android 15 and includes a broad set of privacy controls, covering clipboard warnings, location privacy options, and camera/microphone access management, though Mail Privacy Protection and cross-site tracking blocking are not present. App tracking can be blocked, and the OS supports on-device machine learning alongside offline voice recognition and voice commands. Customization options include theme customization, dynamic theming, dark mode, and an extra dim mode, while focus modes and Wi-Fi password sharing are not available. The software supports split-screen multitasking, Picture-in-Picture, full-page screenshots, a media picker, customizable notifications, widgets, sharing intents, a child lock, and the ability to play games while they download. Multi-user support, app offloading, phone tracking, Live Text, and battery health checks are also included, though direct OS vendor updates and Quick Start are not supported.

Battery:

battery power 5800 mAh
has wireless charging
Supports fast charging
charging speed 45W
has reverse wireless charging
has a removable battery
has a battery level indicator
has a rechargeable battery

The Redmi Note 15 5G is equipped with a 5800 mAh rechargeable battery that is non-removable and supports 45W wired fast charging, with a battery level indicator included. Wireless charging and reverse wireless charging are not supported.

Audio:

has a socket for a 3.5 mm audio jack
has stereo speakers
has aptX
has LDAC
has aptX HD
has aptX Adaptive
has aptX Lossless

The Redmi Note 15 5G features stereo speakers and supports LDAC for high-quality wireless audio transmission, but does not include a 3.5 mm headphone jack. The aptX, aptX HD, aptX Adaptive, and aptX Lossless codecs are not supported.

Connectivity & Features:

has 5G support
Wi-Fi version Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
SIM cards 2 SIM
Bluetooth version 5.1
has an external memory slot
Has USB Type-C
USB version 2
has NFC
download speed 2900 MBits/s
upload speed 1600 MBits/s
Has a fingerprint scanner
has emergency SOS via satellite
has crash detection
is DLNA-certified
has a gyroscope
supports ANT+
Has a heart rate monitor
has GPS
has a compass
supports Wi-Fi
Has an infrared sensor
has an accelerometer
has a cellular module
Has a barometer
has an HDMI output
Uses 3D facial recognition
Has an iris scanner
Stylus included
supports Galileo
Has motion tracking
Has optical tracking
Has a built-in projector

The Redmi Note 15 5G supports 5G connectivity alongside Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), Bluetooth 5.1, and NFC, with a dual SIM card slot and an external memory slot for additional storage. Wired connectivity is handled via a USB Type-C port running USB 2.0, and the device achieves download speeds of up to 2900 MBits/s and upload speeds of up to 1600 MBits/s. Sensors include a fingerprint scanner, gyroscope, accelerometer, compass, GPS with Galileo support, and an infrared sensor, while a barometer, heart rate monitor, ANT+ support, motion tracking, and optical tracking are absent. The device does not feature 3D facial recognition, an iris scanner, HDMI output, a built-in projector, a stylus, DLNA certification, crash detection, or emergency SOS via satellite.

Miscellaneous:

has a video light
Has sapphire glass display
Has a curved display
Has an e-paper display

The Redmi Note 15 5G features a curved display and includes a video light, while it does not use sapphire glass or an e-paper display.

Final Verdict

The Xiaomi Redmi Note 15 5G presents a well-rounded specification set for users seeking a capable daily driver with strong display quality and dependable battery endurance. Its IP68-rated build combined with a 5800 mAh battery and 45W fast charging gives it a practical edge for users who demand resilience and all-day usability without frequent top-ups. While the camera system and wired connectivity fall short for more demanding use cases, the OLED screen, Snapdragon 6 Gen 3 chipset, and broad feature set — including NFC, LDAC, an infrared sensor, and dual SIM support — make the Redmi Note 15 5G a competent and feature-rich option for mainstream users who prioritize screen experience and battery life above all else.