Infinix Note 40

The Infinix Note 40 has a non-folding, standard-form design measuring 164.1 mm tall, 74.5 mm wide, and just 7.8 mm thick, with a total volume of 95.36 cm³ and a weight of 190 g. It carries an IP54 ingress protection rating, meaning it offers resistance against dust and water splashes, though it is not built to a rugged standard.

The Infinix Note 40 features a 6.78″ OLED/AMOLED touchscreen with a resolution of 1080 x 2436 px at 393 ppi, backed by a 120Hz refresh rate and a 360Hz touch sampling rate for responsive input. Typical brightness sits at 550 nits, and the panel delivers a contrast ratio of 10,000,000:1, though it does not support HDR10, HDR10+, or Dolby Vision. The screen is protected by Gorilla Glass DX+ and supports an Always-On Display mode, while there is no secondary screen. HDR content standards aside, the display rounds out with a single panel configuration and no curved or folding form factor.

The Infinix Note 40 is driven by the MediaTek Helio G99 system-on-chip, built on a 6 nm process with an octa-core CPU running at 2 x 2.2 GHz and 6 x 2 GHz across 8 threads, supported by big.LITTLE and HMP technologies for efficient workload distribution. It comes with 8GB of DDR4 RAM at 4266 MHz and 256GB of eMMC 5.1 internal storage, with a maximum supported memory amount of 12GB across two memory channels delivering up to 17.1 GB/s of bandwidth. Graphics are handled by the integrated Mali G57 GPU clocked at 950 MHz with a turbo mode reaching 2133 MHz, 32 shading units, DirectX 11, OpenGL ES 3.2, and OpenCL 2 support, capable of driving up to two displays. Benchmark results include an AnTuTu score of 456,900, Geekbench 6 single-core and multi-core scores of 729 and 1,979 respectively, a PCMark Work 3.0 performance score of 11,124 with a battery endurance result of 661 minutes, and a 3DMark Steel Nomad score of 146. The SoC also integrates LTE, supports 64-bit processing and TrustZone security, and operates within a thermal design power of 5W with a maximum CPU temperature rating of 95°C.

The Infinix Note 40 features a dual-lens rear camera system headlined by a 108 MP primary sensor with an f/2.4 aperture alongside a 2 MP secondary lens at f/1.9, both using CMOS technology without a back-illuminated sensor. Autofocus options include phase-detection and touch autofocus for photos as well as continuous autofocus during video recording, though laser autofocus is absent, and there is no optical image stabilization or optical zoom. Video capture tops out at 1440p at 30 fps, with support for slow-motion recording, while HDR10 and Dolby Vision recording are not available. The camera app offers a broad range of manual controls including exposure, ISO, focus, and white balance, along with burst mode, panorama, timelapse, and HDR shooting, but does not support RAW output, manual shutter speed, or 360-degree panoramas. Four LED flash units illuminate rear shots, while the front-facing 32 MP single-lens camera with an f/2.2 aperture has no dedicated flash and is positioned above the display rather than underneath it.

The Infinix Note 40 runs Android 14 and includes a solid set of privacy controls, covering location access management, camera and microphone permissions, clipboard warnings, and the ability to block app tracking, though cross-site tracking blocking and Mail Privacy Protection are not present. On the customization side, the OS supports dark mode, dynamic theming, theme customization, widgets, and customizable notifications, while focus modes and app offloading are not available. Productivity is aided by split-screen multitasking, Picture-in-Picture, full-page scrolling screenshots, a media picker, Live Text for selecting text from images, sharing intents, and the ability to play games while they are still downloading. The system also supports on-device machine learning, offline voice recognition, voice commands, phone tracking, a child lock, multi-user accounts, battery health monitoring, and an extra dim display mode. OS updates are not delivered directly by the vendor, Wi-Fi password sharing and Quick Start are absent, and the device cannot function as a PC.

The Infinix Note 40 is equipped with a rechargeable 5000 mAh battery that supports 45W wired fast charging as well as 20W wireless charging, with a charger included in the box. The battery is non-removable and does not support reverse wireless charging, but it does feature a battery level indicator. A battery health check tool is also available through the operating system to monitor long-term cell condition.

The Infinix Note 40 includes stereo speakers and a dual-microphone setup, along with a built-in radio. There is no 3.5 mm headphone jack, and none of the high-quality Bluetooth audio codecs — aptX, aptX HD, aptX Adaptive, aptX Lossless, or LDAC — are supported.

The Infinix Note 40 supports dual SIM cards with a cellular module and offers wireless connectivity via Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), though 5G is not available. The USB Type-C port operates at USB 2.0 speeds, and the device includes NFC, a fingerprint scanner, GPS with Galileo support, a compass, gyroscope, and accelerometer, while a barometer, infrared sensor, heart rate monitor, iris scanner, and 3D facial recognition are all absent. Download and upload speeds reach up to 650 Mbits/s and 150 Mbits/s respectively, and the phone does not support HDMI output, DLNA, ANT+, motion or optical tracking, satellite emergency SOS, crash detection, or a built-in projector. No stylus is included.

The Infinix Note 40 includes a video light to assist with recording in low-light conditions. The display is flat rather than curved, uses neither sapphire glass nor e-paper technology.