Oppo A6x 4G (128GB / 4GB RAM) specifications and in-depth review

Oppo A6x 4G (128GB / 4GB RAM)

Manufacturer: Oppo

The Oppo A6x 4G is a large-screen Android smartphone built around a 6.75-inch IPS LCD panel and running Android 15. With a body measuring 166.6 mm tall and weighing 210 g, it sits comfortably in the mid-range segment, offering IP64 water and dust resistance alongside a reasonably slim 8.6 mm profile. Storage comes in at 128GB with 4GB of RAM, and the device supports expandable memory via a dedicated microSD slot.

Under the hood, the Oppo A6x 4G is powered by a Qualcomm Snapdragon 685 4G chip built on a 6 nm process, paired with an Adreno 610 GPU clocked at 1260 MHz. The display runs at 120Hz with a 240Hz touch sampling rate, though resolution sits at 720 x 1570 px for a pixel density of 256 ppi. A 6500 mAh battery provides the power reserve, while connectivity includes Bluetooth 5.0, Wi-Fi 5, USB Type-C, GPS with Galileo support, and a 3.5 mm headphone jack. The rear camera captures at 13 MP with phase-detection autofocus and records up to 1080p at 30 fps.

Pros
  • The 6500 mAh battery is a notably large capacity for a smartphone, supporting extended use between charges
  • The 120Hz display refresh rate paired with a 240Hz touch sampling rate delivers smoother scrolling and more responsive touch input
  • IP64 rating provides meaningful protection against dust and water splashes in everyday situations
  • An external memory slot allows storage to be expanded beyond the built-in 128GB
  • The 6 nm Snapdragon 685 chipset supports big.LITTLE architecture across 8 threads, offering a balance of processing efficiency across workloads
  • The rear camera covers a broad set of manual controls including ISO, exposure, focus, and white balance, giving users direct control over their shots
Cons
  • Fast charging is not supported, which means the large 6500 mAh battery will take considerably longer to replenish
  • The display resolution of 720 x 1570 px results in a relatively low pixel density of 256 ppi for a 6.75-inch screen, limiting sharpness
  • Only 4GB of RAM is available, which may limit multitasking headroom under heavier usage
  • NFC is absent, ruling out contactless payments and related functionality
  • The main camera is a single-lens 13 MP unit without optical image stabilization or a BSI sensor, limiting low-light and action shooting capability
  • Wireless charging and reverse wireless charging are both unsupported
Who is this for?

This device is well-suited to users who prioritize long battery life above most other factors, as the 6500 mAh cell makes it a reliable option for those who go extended periods without access to a charger. The IP64 rating and solid build dimensions make it a reasonable daily driver for people who encounter occasional splashes or dusty environments without needing full rugged protection. Users who appreciate manual camera controls — including ISO, exposure, white balance, and focus — alongside features like slow-motion, timelapse, and panorama will also find the camera system adequately flexible for casual photography.

Who is this NOT for?

Users who rely on fast or wireless charging will find this device frustrating, as neither is supported, meaning the large battery comes at the cost of lengthy recharge times. The 720p display resolution spread across a 6.75-inch panel results in a noticeably low pixel density that makes it a poor fit for anyone who values sharp screen clarity for media consumption or detailed content. Additionally, those who need strong multitasking capabilities, mobile payments via NFC, or 5G connectivity will find the 4GB of RAM, absent NFC, and 4G-only support collectively limiting for more demanding or modern usage patterns.

Design:

water resistance Water resistant
weight 210 g
thickness 8.6 mm
width 78.5 mm
height 166.6 mm
volume 112.47166 cm³
Ingress Protection (IP) rating IP64
has a rugged build
can be folded

The Oppo A6x 4G has a non-folding, standard-build body measuring 166.6 mm tall, 78.5 mm wide, and 8.6 mm thick, with a total volume of 112.47 cm³ and a weight of 210 g. It carries an IP64 ingress protection rating, meaning it is resistant to water splashes and dust without qualifying as a rugged device.

Display:

Display type LCD, IPS
screen size 6.75"
pixel density 256 ppi
resolution 720 x 1570 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 A6x 4G features a 6.75-inch IPS LCD touchscreen with a resolution of 720 x 1570 px and a pixel density of 256 ppi. It supports a 120Hz refresh rate paired with a 240Hz touch sampling rate, contributing to smoother on-screen interactions. The display does not include branded damage-resistant glass, an Always-On Display mode, a secondary screen, or support for HDR10, HDR10+, or Dolby Vision.

Performance:

internal storage 128GB
RAM 4GB
Chipset (SoC) name Qualcomm Snapdragon 685 4G
GPU name Adreno 610
CPU speed 4 x 2.8 & 4 x 1.9 GHz
Geekbench 6 result (multi) 1510
Geekbench 6 result (single) 473
Geekbench 5 result (multi) 1787
Geekbench 5 result (single) 442
GPU clock speed 1260 MHz
Has integrated LTE
RAM speed 2133 MHz
semiconductor size 6 nm
Supports 64-bit
DirectX version DirectX 12
Has integrated graphics
OpenGL ES version 3.2
Uses big.LITTLE technology
CPU threads 8 threads
Has NX bit
Has TrustZone
maximum memory bandwidth 17 GB/s
OpenCL version 2
eMMC version 5.1
maximum memory amount 16GB
GPU turbo 1260 MHz
DDR memory version 4

The Oppo A6x 4G is driven by the Qualcomm Snapdragon 685 4G, a 6 nm chipset with an octa-core CPU configuration running at 4 x 2.8 GHz and 4 x 1.9 GHz across 8 threads using big.LITTLE technology, alongside an Adreno 610 GPU clocked at 1260 MHz. The device comes with 128GB of eMMC 5.1 internal storage and 4GB of DDR4 RAM running at 2133 MHz, with a maximum supported memory amount of 16GB and a peak memory bandwidth of 17 GB/s. It supports 64-bit processing, integrated LTE, integrated graphics, DirectX 12, OpenGL ES 3.2, OpenCL 2, TrustZone, and NX bit security, and posts Geekbench 6 scores of 473 single-core and 1510 multi-core, with Geekbench 5 results of 442 single-core and 1787 multi-core.

Cameras:

megapixels (main camera) 13 MP
wide aperture (main camera) 2.2f
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 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 A6x 4G has a single-lens rear camera with a 13 MP CMOS sensor and an f/2.2 aperture, capable of recording video at 1080p and 30 fps. It supports phase-detection autofocus for photos, continuous autofocus during video recording, touch autofocus, HDR mode, slow-motion video, timelapse, panorama, burst mode, manual exposure, manual ISO, manual focus, and manual white balance, though it lacks optical image stabilization, a BSI sensor, laser autofocus, manual shutter speed, RAW capture, 360-degree panorama, HDR10 or Dolby Vision recording, and 3D photo or video capabilities. A single LED flash is present on the rear, while the front camera offers 5 MP with an f/2.2 aperture and no front-facing flash, dual-lens setup, or under-display placement.

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 Oppo A6x 4G runs Android 15, a free and open-source platform that supports multi-user access, on-device machine learning, offline voice recognition, voice commands, and device tracking. On the privacy side, it offers clipboard warnings, location privacy options, camera and microphone access controls, and the ability to block app tracking, though it does not include Mail Privacy Protection, cross-site tracking blocking, or Wi-Fi password sharing. The software experience is rounded out by a broad set of usability features including dark mode, dynamic and manual theme customization, extra dim mode, customizable notifications with a media picker, full-page scrolling screenshots, split-screen multitasking, Picture-in-Picture, sharing intents, widgets, app offloading, battery health check, Live Text, the ability to play games while downloading, and a child lock, while focus modes, Quick Start, and PC mode are not supported, and OS updates are not delivered directly from the vendor.

Battery:

battery power 6500 mAh
has wireless charging
Supports fast charging
has reverse wireless charging
comes with a charger
has a removable battery
has a battery level indicator
has a rechargeable battery

The Oppo A6x 4G is equipped with a 6500 mAh rechargeable battery that is non-removable and comes with a charger included in the box. A battery level indicator is present, but the device does not support fast charging, wireless charging, or reverse wireless charging.

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 A6x 4G includes a 3.5 mm headphone jack and supports aptX for improved Bluetooth audio quality, though it does not offer aptX HD, aptX Adaptive, aptX Lossless, or LDAC. 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
has an external memory slot
Has USB Type-C
USB version 2
has NFC
download speed 390 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 Oppo A6x 4G supports dual SIM cards and connects wirelessly via Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac) and Bluetooth 5, though it does not include 5G or NFC. Wired connectivity is handled through a USB Type-C port running USB 2.0, while cellular download speeds reach up to 390 Mbit/s and upload up to 150 Mbit/s. Navigation is covered by GPS with Galileo support alongside a compass, and the device also includes an accelerometer, a fingerprint scanner, and an external memory slot for expandable storage. Features such as a gyroscope, barometer, infrared sensor, heart rate monitor, 3D facial recognition, iris scanner, ANT+, DLNA, HDMI output, motion tracking, optical tracking, crash detection, satellite SOS, and a built-in projector are all absent.

Miscellaneous:

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

The Oppo A6x 4G includes a video light for use during video recording, while the display is flat rather than curved and uses neither sapphire glass nor an e-paper panel.

Final Verdict

The Oppo A6x 4G is a large-screen Android 15 smartphone that makes a clear case for users who prioritize endurance and everyday practicality over cutting-edge specifications. Its most defining asset is the 6500 mAh battery, which, combined with IP64 protection and a broad set of software features, positions it as a dependable daily device for moderate users. The trade-offs — a 720p display, 4GB of RAM, no fast charging, and the absence of NFC and 5G — are real constraints that narrow its appeal, making it most appropriate for those with straightforward needs rather than demanding workloads or media-intensive habits. For users within that scope, the Oppo A6x 4G delivers a functional and well-rounded package.