Oppo A3x 5G specifications and in-depth review

Oppo A3x 5G

Manufacturer: Oppo

The Oppo A3x 5G is a mid-range smartphone running Android 14, built around a 6.67″ IPS LCD panel that supports a 120Hz refresh rate and a 240Hz touch sampling rate for responsive everyday interaction. The handset carries an IP54 rating for water resistance and comes in at 7.7 mm thick, weighing 187 g — a relatively slim and manageable form factor for a device of its screen size.

Under the hood, the A3x 5G is powered by the MediaTek Dimensity 6300 chipset, manufactured on a 6 nm process, paired with 4 GB of RAM and 128 GB of internal storage expandable via a memory card slot. The 5100 mAh battery supports 45W fast charging and ships with a charger included. On the camera side, the device features an 8 MP rear sensor capable of 1080p video at 60 fps, alongside a 5 MP front camera, with manual controls for ISO, exposure, focus, and white balance available to the user. Connectivity is covered by 5G, Wi-Fi 5, Bluetooth 5.3, and GPS with Galileo support, though NFC is absent from the specification sheet.

Pros
  • The 5100 mAh battery paired with 45W fast charging provides substantial capacity with relatively quick replenishment, and a charger is included in the box
  • IP54 water resistance offers meaningful protection against splashes and dust in everyday situations
  • The 120Hz refresh rate and 240Hz touch sampling rate on the display keep scrolling and touch interaction noticeably smooth
  • LDAC support enables higher-quality audio over Bluetooth when used with compatible wireless headphones
  • A 3.5 mm headphone jack is present, allowing wired headphones to be used without an adapter
  • The device supports 5G, dual SIM, expandable storage via a memory card slot, and Bluetooth 5.3, covering the core connectivity needs for daily use
Cons
  • The main camera is limited to 8 MP with no optical image stabilization and no optical zoom, which constrains photographic versatility
  • The display resolution of 720 x 1604 px results in a pixel density of only 264 ppi on a 6.67 inch panel, which is noticeably low for this screen size
  • NFC is absent, ruling out contactless payments and other NFC-dependent interactions
  • There are no stereo speakers, meaning audio output is restricted to a single channel
  • The USB port is Type-C but only runs at USB 2.0 speeds, limiting wired data transfer performance
  • A gyroscope is not included, which affects compatibility with certain navigation apps, augmented reality features, and motion-based games
Who is this for?

This device is well-suited to everyday users who prioritize reliable all-day battery life, as the 5100 mAh cell with 45W fast charging keeps downtime minimal without requiring wireless charging support. The dual SIM slot, expandable storage, 5G connectivity, and IP54 splash resistance make it a practical choice for people who use their phone heavily throughout the day in varied environments. Users who listen to music frequently will appreciate the 3.5 mm headphone jack combined with LDAC support, and the 120Hz display with 240Hz touch sampling keeps everyday scrolling and casual gaming feeling responsive. It also works well for those who value a range of privacy controls and software customization, given the broad set of Android 14 features on board.

Who is this NOT for?

Users who rely heavily on photography will find the single 8 MP rear camera without optical image stabilization or optical zoom limiting for anything beyond basic snapshots, particularly in challenging lighting conditions where the absence of a BSI sensor becomes apparent. Mobile gamers or power users expecting smooth, immersive experiences may be held back by the 4 GB of RAM and the lack of a gyroscope, which restricts compatibility with motion-based and augmented reality applications. Those who depend on contactless payments or frequent NFC interactions will also find this device unsuitable, and users who transfer large amounts of data via cable will be constrained by the USB 2.0 interface. The 720p display resolution may also disappoint anyone accustomed to sharper screens for media consumption on a 6.67 inch panel.

Design:

water resistance Water resistant
weight 187 g
thickness 7.7 mm
width 76 mm
height 165.7 mm
volume 96.96764 cm³
Ingress Protection (IP) rating IP54
has a rugged build
can be folded

The Oppo A3x 5G has a standard, non-folding form factor measuring 165.7 mm tall, 76 mm wide, and 7.7 mm thick, with a total volume of approximately 96.97 cm³ and a weight of 187 g. It carries an IP54 ingress protection rating, meaning it offers a degree of resistance against dust and water splashes, though it does not qualify as a rugged device built for harsher environments.

Display:

Display type LCD, IPS
screen size 6.67"
pixel density 264 ppi
resolution 720 x 1604 px
refresh rate 120Hz
touch sampling rate 240Hz
has branded damage-resistant glass
supports HDR10
supports HDR10+
Always-On Display
supports Dolby Vision
Has a secondary screen
has a touch screen

The Oppo A3x 5G features a 6.67″ IPS LCD touchscreen with a resolution of 720 x 1604 px and a pixel density of 264 ppi. It supports a 120Hz refresh rate for smoother on-screen motion, complemented by a 240Hz touch sampling rate that keeps input response feeling snappy. The display does not include branded damage-resistant glass, an Always-On mode, a secondary screen, or support for HDR10, HDR10+, or Dolby Vision.

Performance:

internal storage 128GB
RAM 4GB
AnTuTu benchmark score 409464
Chipset (SoC) name MediaTek Dimensity 6300
GPU name Arm Mali-G57 MC2
CPU speed 2 x 2.4 & 6 x 2 GHz
Geekbench 6 result (multi) 2012
Geekbench 6 result (single) 782
GPU clock speed 950 MHz
Has integrated LTE
RAM speed 2133 MHz
semiconductor size 6 nm
Supports 64-bit
DirectX version DirectX 12
Has integrated graphics
Uses big.LITTLE technology
CPU threads 8 threads
Uses HMP
maximum memory bandwidth 17.07 GB/s
L2 cache 1 MB
L1 cache 512 KB
maximum memory amount 12GB
uses multithreading
DDR memory version 4
L3 cache 2 MB

The Oppo A3x 5G is driven by the MediaTek Dimensity 6300 system-on-chip, built on a 6 nm process with an octa-core CPU configuration running at 2 x 2.4 GHz and 6 x 2 GHz using big.LITTLE architecture with HMP support for efficient workload distribution across 8 threads. Graphics are handled by the integrated Arm Mali-G57 MC2 GPU clocked at 950 MHz, which supports DirectX 12. The device comes with 4 GB of DDR4 RAM running at 2133 MHz and 128 GB of internal storage, with a maximum supported memory amount of 12 GB and a peak memory bandwidth of 17.07 GB/s. Cache is arranged across 512 KB L1, 1 MB L2, and 2 MB L3 layers. In benchmarks, the chipset scores 409,464 on AnTuTu and posts Geekbench 6 results of 782 single-core and 2012 multi-core, with integrated LTE also present on the SoC alongside 64-bit and multithreading support.

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 60 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
wide aperture (front camera) 2.2f
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 Oppo A3x 5G has a single-lens 8 MP rear camera with an f/2.0 aperture and a CMOS sensor, supporting phase-detection autofocus for stills as well as continuous and touch autofocus during video recording. It records video at up to 1080p at 60 fps and also supports slow-motion capture, though there is no optical image stabilization, no optical zoom, and no BSI sensor on the rear. Manual controls cover ISO, exposure, focus, and white balance, while burst mode, HDR, panorama, and timelapse round out the shooting options; raw capture and manual shutter speed are not available. A single LED flash is present on the rear, with no dual-tone or RGB flash. On the front, there is a 5 MP camera with an f/2.2 aperture — a single-lens setup without a front flash or an under-display placement — and HDR10 and Dolby Vision recording are absent from both cameras.

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 Oppo A3x 5G runs Android 14 and includes a solid set of privacy controls, covering clipboard warnings, location privacy options, camera and microphone access management, and the ability to block app tracking, though cross-site tracking blocking and Mail Privacy Protection are not present. On the usability side, it supports dark mode, dynamic and manual theme customization, customizable notifications, a media picker, full-page scrolling screenshots, split-screen multitasking, Picture-in-Picture, widgets, sharing intents, a child lock, and an extra dim display mode. The device also features on-device machine learning, offline voice recognition, voice commands, device tracking, multi-user support, a battery health check, and the ability to play games while they download. Live Text for selecting text in images is included as well. Focus modes, Wi-Fi password sharing, app offloading, Quick Start, and the ability to function as a PC are not supported, and OS updates do not arrive directly from the vendor.

Battery:

battery power 5100 mAh
has wireless charging
Supports fast charging
charging speed 45W
comes with a charger
has a removable battery
has a battery level indicator
has a rechargeable battery

The Oppo A3x 5G is equipped with a 5100 mAh rechargeable, non-removable battery that supports 45W fast charging, and a charger is included in the box. A battery level indicator is on hand to keep track of remaining charge, though wireless charging is not available on this device.

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 Oppo A3x 5G includes a 3.5 mm headphone jack for wired audio and supports LDAC for higher-quality Bluetooth audio transmission, though aptX, aptX HD, aptX Adaptive, and aptX Lossless are not supported. The device has a single speaker rather than a stereo setup, and there is no built-in radio.

Connectivity & Features:

has 5G support
Wi-Fi version Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
SIM cards 2 SIM
Bluetooth version 5.3
has an external memory slot
Has USB Type-C
USB version 2
has NFC
download speed 3300 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 Oppo A3x 5G supports 5G connectivity along with Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), and accommodates two SIM cards simultaneously. Bluetooth 5.3 is on board, and the device connects via a USB Type-C port running USB 2.0, with no HDMI output available. Storage can be expanded through an external memory slot. For location, the phone includes GPS with Galileo support alongside a compass and accelerometer, though a gyroscope, barometer, and motion or optical tracking sensors are absent. A fingerprint scanner handles biometric authentication, while 3D facial recognition and an iris scanner are not featured. NFC is not present, but the maximum download speed reaches 3,300 Mbits/s over cellular. Satellite SOS, crash detection, ANT+, a heart rate monitor, an infrared sensor, a built-in projector, and a stylus are all absent from this device.

Miscellaneous:

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

The Oppo A3x 5G includes a video light to assist with recording in low-light conditions. The display is flat rather than curved, uses no sapphire glass, and the device does not feature an e-paper screen.

Final Verdict

The Oppo A3x 5G is a straightforward daily driver built around practical fundamentals rather than headline-grabbing specifications. Its most compelling combination is the 5100 mAh battery with 45W fast charging alongside 5G support, dual SIM capability, and a smooth 120Hz display — a set of attributes that serves the needs of typical everyday users reliably well. The inclusion of LDAC, a headphone jack, IP54 water resistance, and a broad range of Android 14 software features add further substance to the package. However, the 8 MP single rear camera, 4 GB of RAM, USB 2.0 interface, and 720p display resolution reflect clear trade-offs that will matter to more demanding users. The Oppo A3x 5G is best understood as a device designed for dependable, uncomplicated daily use — and within that scope, its spec sheet holds together sensibly.

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