Oppo A40 (128GB / 4GB RAM)

The Oppo A40 has a slim 7.68 mm thickness and weighs 186 g, with overall dimensions of 165.77 mm in height and 76 mm in width, giving it a total volume of roughly 96.76 cm³. It carries a water-resistant rating, offering a degree of protection against moisture in everyday situations. The device does not feature a rugged build, nor does it support any folding mechanism.

The Oppo A40 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 90Hz refresh rate paired with a 180Hz touch sampling rate for responsive input, and reaches a typical brightness of 1000 nits. The display does not include branded damage-resistant glass, and there is no support for HDR10, HDR10+, Dolby Vision, or an Always-On Display mode. There is no secondary screen on this device.

The Oppo A40 is built around the Qualcomm Snapdragon 6 Gen 1, a 4 nm octa-core chipset configured as four cores at 2.2 GHz and four at 1.8 GHz, with 8 threads and a thermal design power of 7W. It pairs with 4GB of LPDDR5 RAM running at 2750 MHz across two memory channels, offering a maximum memory bandwidth of 22 GB/s, while the device supports up to 12GB of maximum memory and up to 1024GB of external storage expansion. Internal storage stands at 128GB on eMMC 5.1. Graphics are handled by the integrated Adreno 710 GPU clocked at 800 MHz with 128 shading units, supporting DirectX 12, OpenGL ES 3.2, and OpenCL 2. The chipset employs big.LITTLE architecture with HMP scheduling and includes TrustZone security and integrated LTE. Cache is organized as 256 KB L1, 2 MB L2, and 2 MB L3. In Geekbench 6, the device scores 943 in single-core and 2748 in multi-core tests, and the platform is fully 64-bit compatible.

The Oppo A40 uses a single rear camera with a 50 MP BSI CMOS sensor and an f/1.8 aperture, without optical image stabilization or laser autofocus, and there is no dual- or multi-lens setup on the back. Autofocus is handled through phase-detection for stills and continuous autofocus during video, while touch autofocus is also supported. The camera offers a range of manual controls including exposure, ISO, focus, and white balance, though manual shutter speed is not available. Additional shooting modes include HDR, burst, panorama, slow-motion video, and timelapse, but there is no optical zoom and RAW capture is not supported. Video recording tops out at 1080p at 30 fps, with no HDR10 or Dolby Vision recording. A single LED flash is present on the rear, with no dual-tone or RGB flash. The 5 MP front camera has an f/2.2 aperture and is a single-lens unit positioned conventionally — not under the display — and it does not have a dedicated front flash.

The Oppo A40 runs Android 14 and includes a broad set of privacy controls, covering clipboard warnings, location privacy options, and camera and microphone access management, though Mail Privacy Protection and cross-site tracking blocking are not available. App tracking can be blocked, and the device supports on-device machine learning. On the customization side, users have access to theme customization, dynamic theming, dark mode, and an extra dim mode, while focus modes and app offloading are not supported. The OS handles notifications with granular permission controls and customizable notification settings, and also supports a media picker, full-page screenshots, split-screen multitasking, Picture-in-Picture, sharing intents, widgets, and a child lock. Voice commands and offline voice recognition are both available, and the device supports multi-user operation and phone tracking. Games can be played while downloading, and Live Text selection from images is included. Wi-Fi password sharing and Quick Start are absent, and the device does not receive direct OS updates from the vendor, nor can it function as a PC.

The Oppo A40 is equipped with a 5100 mAh rechargeable battery that supports 45W fast charging, and a charger is included in the box. A battery level indicator is available on the device. The battery is not removable, and wireless charging is not supported.

The Oppo A40 includes a 3.5 mm headphone jack for wired audio and supports aptX over Bluetooth for improved wireless audio quality. However, higher-tier Bluetooth audio codecs — aptX HD, aptX Adaptive, aptX Lossless, and LDAC — are not supported. The device has a single speaker with no stereo speaker setup, and there is no built-in radio.

The Oppo A40 supports Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), Bluetooth 5.0, and NFC, but does not offer 5G connectivity. It accommodates two SIM cards and has a USB Type-C port, along with an external memory slot for storage expansion. Download speeds reach up to 2900 Mbits/s and upload up to 900 Mbits/s. For navigation, the device includes GPS with Galileo support, and onboard sensors cover a gyroscope, accelerometer, and compass. A fingerprint scanner handles biometric authentication, while 3D facial recognition and an iris scanner are not present. Notably absent are an infrared sensor, barometer, heart rate monitor, HDMI output, ANT+ support, DLNA certification, satellite SOS, crash detection, and a built-in projector. No stylus is included, and motion or optical tracking capabilities are not available.

The Oppo A40 includes a video light, which can be used to illuminate subjects during video recording. The display is flat rather than curved, and neither sapphire glass nor an e-paper display are featured on this device.