Xiaomi Redmi A3x specifications and in-depth review

Xiaomi Redmi A3x

Manufacturer: Xiaomi

The Xiaomi Redmi A3x is an entry-level Android smartphone running Android 14, built around a 6.71-inch IPS LCD screen protected by Gorilla Glass 3 for basic drop and scratch resistance. It is powered by a Unisoc Tiger T603 chipset paired with 4GB of RAM and 128GB of internal storage, with support for external memory expansion. The device has a dual SIM configuration and connects over 4G LTE, with GPS and Galileo support for location services.

The rear camera is an 8MP CMOS sensor with an f/2.0 aperture, capable of 1080p video at 30fps and offering manual controls for ISO, focus, exposure, and white balance, along with phase-detection autofocus, HDR, slow-motion recording, and in-camera panorama. A 5MP front camera at f/2.2 handles selfies, and a single LED flash is available at the rear. On the battery side, a 5000 mAh non-removable cell supports 10W wired fast charging, with a charger included in the box. Audio connectivity includes a 3.5mm headphone jack and a built-in FM radio, though stereo speakers are absent. Connectivity is handled via Wi-Fi 4, Bluetooth 4.2, USB Type-C, and a fingerprint scanner, while NFC, 5G, and a gyroscope are not present.

Pros
  • The 6.71-inch display is covered by Gorilla Glass 3, providing a basic layer of protection against scratches and everyday impacts
  • A 5000 mAh battery with a charger included in the box offers a practical out-of-the-box setup for all-day use
  • 128GB of internal storage combined with an external memory slot gives users room to grow without being locked into fixed capacity
  • The rear camera includes phase-detection autofocus, HDR, slow-motion recording, and manual controls for ISO, focus, exposure, and white balance, offering reasonable shooting flexibility for an entry-level device
  • A built-in FM radio adds a standalone listening option that does not rely on data or streaming
  • A fingerprint scanner provides a reliable biometric unlock method
Cons
  • The 720 x 1650 px resolution on a 6.71-inch panel keeps pixel density at 268 ppi, which limits sharpness for text and detailed content
  • No 5G support and Wi-Fi 4 only restricts the device to older wireless standards with a download ceiling of 300 Mbits/s
  • Only 4GB of RAM leaves limited headroom for running multiple apps simultaneously
  • No water resistance rating means the device offers no protection against splashes or rain
  • NFC is absent, ruling out contactless payments and quick wireless pairing
  • A gyroscope and compass are not present, limiting motion-based app and navigation functionality
Who is this for?

The Xiaomi Redmi A3x is a practical fit for users who primarily need a reliable daily smartphone for basic communication, social media browsing, and media consumption, where its large 6.71-inch display and 5000 mAh battery cover the essentials without complication. The inclusion of 128GB of storage with an expandable memory slot makes it a reasonable option for users who accumulate photos, music, and offline content over time. A built-in FM radio and 3.5mm headphone jack add utility for those who prefer wired audio or live radio without depending on data, while the fingerprint scanner provides straightforward device security for everyday use.

Who is this NOT for?

Users who rely on fast and modern wireless connectivity will find the device limiting, as it lacks 5G support and is restricted to Wi-Fi 4, capping its networking capabilities in environments where faster standards are available. With only 4GB of RAM and an entry-level chipset, it is not suited to heavy multitasking, demanding applications, or mobile gaming that requires sustained processing headroom. The absence of a gyroscope, compass, and NFC makes it a poor choice for users who depend on motion-sensitive apps, accurate navigation assistance, or contactless payment functionality, and the lack of any water resistance rating means it is not appropriate for outdoor or physically demanding environments where exposure to moisture is a concern.

Design:

water resistance None
weight 199 g
thickness 8.3 mm
width 76.3 mm
height 168.4 mm
volume 106.646036 cm³
has a rugged build
can be folded

The Xiaomi Redmi A3x measures 168.4 x 76.3 mm with a thickness of 8.3 mm and weighs 199 g, giving it a total volume of 106.65 cm³. It offers no water resistance rating, and the build is neither rugged nor foldable.

Display:

Display type LCD, IPS
screen size 6.71"
pixel density 268 ppi
resolution 720 x 1650 px
refresh rate 90Hz
touch sampling rate 180Hz
has branded damage-resistant glass
Gorilla Glass version Gorilla Glass 3
supports HDR10
supports HDR10+
Always-On Display
supports Dolby Vision
Has a secondary screen
has a touch screen

The Xiaomi Redmi A3x features a 6.71″ IPS LCD touchscreen with a 720 x 1650 px resolution at 268 ppi, running at a 90Hz refresh rate with a 180Hz touch sampling rate. The panel is covered by Gorilla Glass 3 for basic scratch and impact resistance, though it does not support HDR10, HDR10+, or Dolby Vision. Always-On Display is not available, and the device has no secondary screen.

Performance:

internal storage 128GB
RAM 4GB
AnTuTu benchmark score 239000
Chipset (SoC) name Unisoc Tiger T603
GPU name Mali-G57 MP1
CPU speed 2 x 1.8 & 6 x 1.6 GHz
GPU clock speed 650 MHz
Has integrated LTE
RAM speed 1600 MHz
semiconductor size 12 nm
Supports 64-bit
DirectX version DirectX 12
Has integrated graphics
OpenGL ES version 3.2
Uses big.LITTLE technology
CPU threads 12 threads
Uses HMP
Has TrustZone
OpenCL version 2
L2 cache 2 MB
eMMC version 5.1
L1 cache 128 KB
maximum memory amount 8GB
GPU execution units 1
GPU turbo 650 MHz
Thermal Design Power (TDP) 9W
DDR memory version 4
L3 cache 1 MB

The Xiaomi Redmi A3x is driven by a Unisoc Tiger T603 chipset built on a 12nm process, featuring an octa-core CPU in a big.LITTLE arrangement with two cores at 1.8GHz and six cores at 1.6GHz across 12 threads, with HMP and TrustZone support and a TDP of 9W. Graphics are handled by a Mali-G57 MP1 GPU with a single execution unit running at 650MHz, supporting DirectX 12, OpenGL ES 3.2, and OpenCL 2. The chip includes integrated LTE and graphics. The device ships with 4GB of DDR4 RAM at 1600MHz, with the system supporting up to 8GB, and 128GB of eMMC 5.1 internal storage that can be expanded via an external memory slot. Cache is distributed across 128KB L1, 2MB L2, and 1MB L3. The chipset supports 64-bit processing and recorded an AnTuTu benchmark score of 239,000.

Cameras:

megapixels (main camera) 8 MP
wide aperture (main camera) 2f
Has a dual-lens (or multi-lens) main camera
megapixels (front camera) 5MP
has built-in optical image stabilization
video recording (main camera) 1080 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 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
wide aperture (front camera) 2.2f
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 Xiaomi Redmi A3x carries a single 8MP rear CMOS sensor with an f/2.0 aperture, supporting phase-detection autofocus, touch autofocus, and continuous autofocus during video recording, while laser autofocus and optical image stabilization are not present. Manual controls include ISO, focus, exposure, and white balance, and the camera supports HDR, slow-motion recording, and standard panorama, though RAW capture, 360-degree panorama, and manual shutter speed are absent. Video recording tops out at 1080p 30fps, with no HDR10 or Dolby Vision recording available. A single LED flash is fitted at the rear, with no dual-tone or RGB variant. The 5MP front camera sits behind an f/2.2 aperture, is a single-lens setup, does not have a front-facing flash, and is not positioned under the display.

Operating system:

Android version Android 14
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 Xiaomi Redmi A3x runs Android 14 and includes a well-rounded set of software features for everyday use. Privacy options cover location controls, camera and microphone access management, clipboard warnings, and app tracking blocking, though Mail Privacy Protection and cross-site tracking blocking are not included. Usability features span dark mode, dynamic and theme customization, widget support, split-screen multitasking, Picture-in-Picture, full-page screenshots, a media picker, sharing intents, and the ability to play games while they download. On-device machine learning and offline voice recognition are supported, while voice commands and Quick Start are absent. The system also provides multi-user support, child lock, phone tracking, battery health check, an extra dim mode, and customizable notification controls. App offloading, Wi-Fi password sharing, focus modes, and desktop PC mode are not available, and direct OS vendor updates are not provided.

Battery:

battery power 5000 mAh
has wireless charging
Supports fast charging
charging speed 10W
comes with a charger
has a removable battery
has a battery level indicator
has a rechargeable battery

The Xiaomi Redmi A3x is equipped with a 5000 mAh non-removable rechargeable battery that supports 10W wired fast charging, with a charger included in the box. A battery level indicator is present, while wireless charging is 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
Has a radio

The Xiaomi Redmi A3x includes a 3.5mm headphone jack and a built-in FM radio, covering basic wired audio and broadcast listening needs. Stereo speakers are not present, so audio output is limited to a single channel. No high-quality Bluetooth audio codecs are supported, with aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC all absent.

Connectivity & Features:

has 5G support
Wi-Fi version Wi-Fi 4 (802.11n)
SIM cards 2 SIM
Bluetooth version 4.2
has an external memory slot
Has USB Type-C
has NFC
download speed 300 MBits/s
upload speed 150 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 Xiaomi Redmi A3x is limited to 4G LTE with no 5G support, and wireless connectivity is handled by Wi-Fi 4 (802.11n) alongside Bluetooth 4.2, with download and upload speeds reaching 300 Mbits/s and 150 Mbits/s respectively. It supports dual SIM cards and connects via a USB Type-C port, with an external memory slot available for storage expansion. A fingerprint scanner is present for biometric authentication, while NFC, 3D facial recognition, and iris scanning are all absent. Location is covered by GPS with Galileo support, complemented by an accelerometer, though a gyroscope, compass, and barometer are not included. 5G, HDMI output, ANT+, DLNA, infrared sensor, satellite SOS, crash detection, motion tracking, optical tracking, and a built-in projector are all unsupported, and no stylus is included.

Miscellaneous:

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

The device features a video light to assist with illumination during video recording. The display is flat with no curved edges, and neither sapphire glass nor an e-paper panel is used.

Final Verdict

The Xiaomi Redmi A3x is a straightforward entry-level smartphone built around core everyday functionality, with a large 6.71-inch display protected by Gorilla Glass 3, a 5000 mAh battery, and 128GB of expandable storage forming the backbone of its appeal. It covers the essentials well for light daily use — browsing, media, wired audio, and basic photography — but its limited RAM, older wireless standards, and absent sensors like a gyroscope and NFC place a clear ceiling on what it can comfortably handle. For users whose needs stay within those boundaries, it delivers a functional and complete package; for anyone requiring 5G, fluid multitasking, or advanced connectivity, its specifications fall notably short.

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