Infinix Note 40S

The Infinix Note 40S has a standard, non-folding form factor measuring 164.1 mm tall, 74.6 mm wide, and 7.8 mm thick, with a total volume of approximately 95.49 cm³ and a weight of 176 g. It carries an IP54 ingress protection rating, meaning it offers a degree of resistance against dust and water splashes, though it does not feature a rugged build designed for heavy-duty conditions.

The Infinix Note 40S features a 6.78″ OLED/AMOLED touchscreen with a resolution of 1080 x 2436 px and a pixel density of 393 ppi, producing sharp and vibrant visuals backed by a contrast ratio of 5,000,000:1 and a typical brightness of 550 nits. The display runs at a 120Hz refresh rate with a 360Hz touch sampling rate for responsive input, and it is protected by branded damage-resistant glass. There is no secondary screen, and the panel does not support HDR10, HDR10+, or Dolby Vision.

The Infinix Note 40S is powered by the Mediatek Helio G99 chipset, built on a 6 nm process with an octa-core CPU configuration of 2 x 2.2 GHz and 6 x 2 GHz cores spread across 8 threads, using big.LITTLE architecture with Heterogeneous Multi-Processing for efficient workload distribution. It scores 729 in Geekbench 6 single-core and 1979 in multi-core tests, and pairs with a Mali G57 GPU running at 950 MHz with a turbo clock of 2133 MHz, 32 shading units, and support for DirectX 11, OpenGL ES 3.2, and OpenCL 2. The device comes with 8 GB of LPDDR4 RAM at 4266 MHz across 2 memory channels, offering up to 12 GB maximum, alongside 256 GB of eMMC 5.1 internal storage and a maximum memory bandwidth of 17.1 GB/s. Additional hardware features include integrated LTE, integrated graphics, TrustZone security, 64-bit support, and a thermal design power of 5W with a rated CPU temperature ceiling of 95 °C.

The Infinix Note 40S uses a dual-lens rear camera system combining a 108 MP primary sensor at f/2.4 and a 2 MP secondary lens at f/1.9, capable of recording video at 1440 x 30 fps with continuous autofocus, slow-motion support, and phase-detection autofocus for stills. Manual controls cover exposure, ISO, focus, and white balance, while shooting modes include HDR, burst, panorama, and timelapse; however, there is no optical image stabilization, no optical zoom, no manual shutter speed, no RAW output, no laser autofocus, and no HDR10 or Dolby Vision recording. A flash is present on the rear, though it is neither dual-tone nor RGB. The 32 MP front camera sits at f/2.2 in a standard cutout position — not under the display — and is a single-lens unit without a dedicated flash, offering touch autofocus but no 3D or 360-degree capture capabilities.

The Infinix Note 40S runs Android 14 and includes a broad set of privacy controls such as clipboard warnings, location privacy options, camera and microphone access management, and the ability to block app tracking, though cross-site tracking blocking, Mail Privacy Protection, and Wi-Fi password sharing are not available. 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 mode, while focus modes, app offloading, and Quick Start are absent. The device also features on-device machine learning, offline voice recognition, voice commands, live text selection from images, phone tracking, multi-user support, a battery health check, and the ability to play games while they are still downloading. OS updates are not delivered directly from the platform vendor, and the device cannot function as a PC.

The Infinix Note 40S is equipped with a 5000 mAh rechargeable battery that supports wired fast charging at 33W and wireless charging at 20W, giving users two convenient ways to top up the device. A battery level indicator is included, though the battery is not removable and reverse wireless charging is not supported.

The Infinix Note 40S includes stereo speakers and a built-in radio, but does not have a 3.5 mm headphone jack. On the wireless audio side, it lacks support for aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC, meaning high-resolution Bluetooth audio codecs are not available on this device.

The Infinix Note 40S supports a cellular module with dual SIM slots and reaches download speeds of up to 650 Mbit/s and upload speeds of up to 150 Mbit/s, though it does not include 5G connectivity. Wireless options cover Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac) alongside NFC, while wired connectivity is handled by a USB Type-C port running USB 2.0; there is no HDMI output and no external memory slot. For location and navigation, the device has GPS with Galileo support, a compass, a gyroscope, and an accelerometer, but lacks a barometer, infrared sensor, heart rate monitor, and ANT+ support. Security is handled by a fingerprint scanner, with no iris scanner, 3D facial recognition, or satellite emergency SOS available, and the device does not include crash detection, DLNA certification, a built-in projector, a stylus, or any motion or optical tracking capabilities.

The Infinix Note 40S features a curved display and includes a video light for use during video recording. The screen uses neither sapphire glass nor e-paper technology.