Xiaomi Redmi A3x (64GB / 3GB RAM) specifications and in-depth review

Xiaomi Redmi A3x (64GB / 3GB RAM)

Manufacturer: Xiaomi

The Xiaomi Redmi A3x (64GB / 3GB RAM) is a compact entry-level Android smartphone running Android 14, built around a 6.71-inch IPS LCD panel protected by Gorilla Glass 3. It is driven by a Unisoc Tiger T603 chipset paired with 3GB of RAM and 64GB of internal storage, with an external memory slot available for expansion. The device supports dual SIM cards, connects over 4G LTE, and includes GPS with Galileo for location services.

The rear camera is an 8MP CMOS sensor at f/2.0, recording video at 1080p 30fps and supporting phase-detection autofocus, HDR, slow-motion, panorama, and manual controls for ISO, focus, exposure, and white balance. A 5MP front camera at f/2.2 handles selfies. The 5000 mAh non-removable battery supports 10W wired fast charging, and a charger is included in the box. Audio features include a 3.5mm headphone jack and a built-in FM radio, while a fingerprint scanner handles biometric security. Wi-Fi 4, Bluetooth 4.2, and USB Type-C round out the connectivity, though 5G, NFC, and a gyroscope are absent.

Pros
  • The 6.71-inch display is covered by Gorilla Glass 3, offering a basic layer of protection against everyday scratches and minor impacts
  • A 5000 mAh battery with 10W fast charging and an included charger provides a self-contained, ready-to-use power setup
  • An external memory slot allows storage to be expanded beyond the built-in 64GB, which is particularly useful given the limited base capacity
  • The rear camera supports phase-detection autofocus, HDR, slow-motion recording, panorama, and manual controls for ISO, focus, exposure, and white balance
  • A built-in FM radio enables broadcast listening without any data connection
  • A fingerprint scanner is included for convenient biometric device access
Cons
  • The combination of only 3GB of RAM and 64GB of internal storage places tight limits on multitasking headroom and local content capacity
  • The 720 x 1650 px resolution on a 6.71-inch screen keeps pixel density at 268 ppi, which falls short for sharp text and image rendering
  • No 5G support and Wi-Fi 4 only restrict the device to older wireless network standards
  • NFC is absent, preventing contactless payments and quick wireless device pairing
  • No gyroscope or compass is present, limiting motion-sensitive application functionality and navigation assistance
  • The device offers no water resistance rating, leaving it unprotected against any moisture exposure
Who is this for?

The Xiaomi Redmi A3x (64GB / 3GB RAM) is well-suited to light everyday users who primarily need a phone for calls, messaging, social media browsing, and casual media consumption, where its large 6.71-inch display with Gorilla Glass 3 and 5000 mAh battery handle the basics reliably. The built-in FM radio and 3.5mm headphone jack make it a practical option for users who listen to broadcast radio or prefer wired audio without depending on streaming. An expandable memory slot also helps users who accumulate photos and offline media over time manage storage beyond the 64GB base capacity, and the fingerprint scanner adds straightforward security for everyday unlocking.

Who is this NOT for?

Users who multitask frequently or run demanding applications will find 3GB of RAM a significant constraint, as it leaves very little headroom for running multiple apps simultaneously or handling resource-intensive tasks. The HD+ resolution at 268 ppi on a 6.71-inch screen makes it unsuitable for users who expect sharp, detailed visuals for video streaming or photo editing. The absence of 5G support, NFC, a gyroscope, and a compass means it falls short for users who rely on modern network speeds, contactless payments, or motion-dependent and navigation applications, and the complete lack of water resistance makes it a poor fit for active or outdoor use where moisture exposure is a real possibility.

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 (64GB / 3GB RAM) measures 168.4 x 76.3 mm with a thickness of 8.3 mm and a weight of 199 g, amounting to a total volume of 106.65 cm³. The build is neither rugged nor foldable, and the device carries no water resistance rating of any kind.

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 device features a 6.71″ IPS LCD touchscreen with a 720 x 1650 px resolution at 268 ppi, operating at a 90Hz refresh rate with a 180Hz touch sampling rate for reasonably responsive input. The panel is covered by Gorilla Glass 3, offering basic protection against scratches and minor impacts. HDR10, HDR10+, and Dolby Vision are not supported, Always-On Display is unavailable, and there is no secondary screen.

Performance:

internal storage 64GB
RAM 3GB
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

This variant runs on a Unisoc Tiger T603 chipset built on a 12nm process, with an octa-core CPU in a big.LITTLE configuration — two cores at 1.8GHz and six at 1.6GHz — spanning 12 threads with HMP and TrustZone support and a TDP of 9W. Graphics are managed by a Mali-G57 MP1 GPU with a single execution unit running at 650MHz, supporting DirectX 12, OpenGL ES 3.2, and OpenCL 2, with integrated LTE also on the chip. The device is configured with 3GB of DDR4 RAM at 1600MHz and 64GB of eMMC 5.1 internal storage, with the system capable of supporting up to 8GB of RAM. Cache is structured across 128KB L1, 2MB L2, and 1MB L3. The chipset supports 64-bit processing, and the device 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 rear camera is a single 8MP CMOS sensor with an f/2.0 aperture, featuring phase-detection autofocus, touch autofocus, and continuous autofocus during video recording, while laser autofocus and optical image stabilization are not included. Available shooting modes cover HDR, slow-motion, standard panorama, and burst-free serial capture, with manual controls for ISO, focus, exposure, and white balance on offer, though RAW output, 360-degree panorama, and manual shutter speed are absent. Video tops out at 1080p 30fps, with no HDR10 or Dolby Vision recording support. A single LED flash is present at the rear, without dual-tone or RGB variants. The 5MP front camera uses an f/2.2 aperture, operates as a single-lens unit, has no front-facing flash, and is not positioned beneath 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 device ships with Android 14 and includes a solid set of everyday software features. Privacy tools 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 available. On the usability side, the OS supports dark mode, dynamic and theme customization, widgets, split-screen multitasking, Picture-in-Picture, full-page screenshots, a media picker, sharing intents, and the ability to play games while downloading. On-device machine learning and offline voice recognition are present, while voice commands and Quick Start are not. Additional features include 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 absent, and the device does not receive direct OS vendor updates.

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 (64GB / 3GB RAM) houses a 5000 mAh non-removable rechargeable battery with 10W wired fast charging and 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

Audio output is handled by a single speaker, as stereo speakers are not present, though a 3.5mm headphone jack is available for wired listening and a built-in FM radio provides access to broadcast stations without needing data. Bluetooth audio codec support is entirely absent, with no aptX, aptX HD, aptX Adaptive, aptX Lossless, or LDAC on offer.

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 device is limited to 4G LTE with no 5G support, and handles wireless connectivity through Wi-Fi 4 (802.11n) and Bluetooth 4.2, with download and upload speeds capped at 300 Mbits/s and 150 Mbits/s respectively. It accommodates two SIM cards and uses a USB Type-C port for wired connection, while an external memory slot is available for storage expansion. A fingerprint scanner is present for biometric authentication, but NFC, 3D facial recognition, and iris scanning are all absent. Location is supported via GPS with Galileo and an accelerometer, though a gyroscope, compass, and barometer are not included. Features such as HDMI output, infrared sensor, ANT+, DLNA, satellite SOS, crash detection, motion tracking, optical tracking, and a built-in projector are all unavailable, 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 includes a video light for illumination during video recording. The display is flat with no curved design, and neither sapphire glass nor an e-paper panel is used.

Final Verdict

The Xiaomi Redmi A3x (64GB / 3GB RAM) is a no-frills entry-level smartphone aimed squarely at users with straightforward daily communication and media needs, where its 5000 mAh battery, Gorilla Glass 3 display, and expandable storage form a practical foundation for light use. The included charger, fingerprint scanner, FM radio, and 3.5mm headphone jack round out a functional feature set without overreaching. That said, the combination of 3GB of RAM, 64GB of base storage, HD+ resolution, and the absence of 5G, NFC, and key sensors places a clear ceiling on what this device can comfortably handle. It is best suited to users whose needs stay well within basic daily tasks — for anyone requiring more headroom in performance, connectivity, or display quality, its specifications will fall noticeably short.