Infinix Smart 9

The Infinix Smart 9 has a standard, non-folding form factor measuring 165.7 mm tall, 77.1 mm wide, and 8.4 mm thick, with a total volume of approximately 107.31 cm³ and a weight of 188 g. It carries an IP54 rating, meaning it offers a degree of protection against dust ingress and water splashing from any direction, though it is not built to a rugged standard and should not be treated as a fully waterproof device.

The Infinix Smart 9 uses a 6.7-inch IPS LCD touchscreen with a resolution of 720 x 1600 px and a pixel density of 262 ppi. It runs at a 120Hz refresh rate with a 240Hz touch sampling rate, contributing to smoother on-screen motion and more responsive input. Typical brightness is rated at 500 nits, and the display supports an Always-On mode. The screen does not feature branded damage-resistant glass, nor does it support HDR10, HDR10+, or Dolby Vision, and there is no secondary screen on the device.

The Infinix Smart 9 is driven by the MediaTek Helio G81 Ultra, a 12nm octa-core chip configured with 2 cores at 2GHz and 6 cores at 1.8GHz, reaching a turbo clock of 2GHz, with a TDP of 5W and 5,500 million transistors. It uses big.LITTLE technology, supports 64-bit processing, and includes ARM TrustZone for hardware-level security. Graphics are handled by the Mali G52 MP2 with 2 execution units, 32 shading units, and a GPU turbo frequency of 950MHz, supporting DirectX 12, OpenGL 3.2, OpenGL ES 3.2, and OpenCL 2.0. The chip has integrated LTE and integrated graphics, with a maximum memory bandwidth of 13.41 GB/s across 2 memory channels. The device ships with 4GB of LPDDR4 RAM at 1800MHz and 128GB of eMMC 5.1 internal storage, with the chipset supporting up to 8GB of RAM; cache consists of 0.3MB L2 and 1MB L3. Benchmark results place the device at an AnTuTu score of 262,000, Geekbench 6 single and multi-core scores of 420 and 1,391 respectively, Geekbench 5 scores of 350 single and 1,300 multi-core, and a PCMark Work 3.0 result of 8,476.

The Infinix Smart 9 features a single 13MP rear camera with an f/1.9 aperture and a CMOS sensor, though it lacks a back-illuminated sensor and optical image stabilization, and there is no optical zoom. Autofocus is handled via phase-detection for stills and continuous autofocus during video recording, with touch autofocus also supported; laser autofocus is not present. The rear camera records video at 1080p and 30fps, with slow-motion recording available, but HDR10 and Dolby Vision recording are not supported. Two LED flash units accompany the rear camera, though they are neither dual-tone nor RGB. Manual controls extend to exposure, ISO, focus, and white balance, while manual shutter speed is absent; additional shooting modes include HDR, burst, panorama, and timelapse, though 360-degree panorama and RAW capture are not available. On the front, an 8MP camera sits behind an f/2.0 aperture lens — it is a single-lens setup with no flash, no under-display placement, and no dual-lens arrangement.

The Infinix Smart 9 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 on-device machine learning is supported. The software offers theme customization with dynamic theming and dark mode, along with customizable notifications, a media picker, notification permissions, and widget support. Productivity features include split-screen multitasking, Picture-in-Picture, full-page screenshots, Live Text, sharing intents, voice commands with offline voice recognition, phone tracking, and the ability to play games while they download. A child lock, battery health check, extra dim mode, and multi-user support are also present, while focus modes, Wi-Fi password sharing, app offloading, Quick Start, and the ability to function as a PC are not included. Direct OS updates from the vendor are not provided, and the platform is noted as free and open source.

The Infinix Smart 9 is equipped with a 5000 mAh rechargeable battery that is non-removable. It supports fast charging at up to 10W via cable, though wireless charging is not available. A battery level indicator is built in, giving users a straightforward way to monitor remaining charge.

The Infinix Smart 9 includes a 3.5mm headphone jack and stereo speakers, along with a built-in radio. On the wireless audio side, none of the higher-quality Bluetooth codecs are supported — aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC are all absent.

The Infinix Smart 9 supports dual SIM cards and connects over 4G LTE, with no 5G support. Wireless networking is handled via Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), and the device connects to computers through a USB Type-C port running USB 2.0. Maximum cellular download and upload speeds reach 300 Mbits/s and 100 Mbits/s respectively. NFC is not present, nor is DLNA certification, HDMI output, or ANT+ support. For location, GPS and Galileo are both supported, and the onboard sensors include an accelerometer and compass; a gyroscope, barometer, heart rate monitor, infrared sensor, and motion or optical tracking are all absent. Security is managed through a fingerprint scanner, while 3D facial recognition and an iris scanner are not included — a stylus is also not part of the package. Crash detection, emergency SOS via satellite, and a built-in projector are likewise not featured. An external memory slot is available for storage expansion.

The Infinix Smart 9 includes a video light for recording in low-light conditions. The display is flat rather than curved, and uses neither sapphire glass nor e-paper technology.