Device color: Black and white.

Phone dimensions: 164.2 mm long, 75.9 mm wide, 5.9 mm thick, and 156 grams.

The device is dust and splash resistant with an IP64 rating. 6 indicates excellent dust protection, while 4 indicates splash resistance, but not immersion in water.

The phone is equipped with two Nano SIM cards.

It supports 2G, 3G, and 4G networks.

The phone features a 6.78-inch AMOLED display with a resolution of 1224 x 2720 pixels (+1.5K) and a pixel density of 440 pixels per inch. The screen supports a 144Hz refresh rate, a brightness of up to 4500 nits, and is protected by Gorilla Glass 7i.

The Tecno Spark Slim is powered by an octa-core MediaTek processor, divided into two high-performance cores clocked at 2.2 GHz and six normal-performance cores clocked at 2.0 GHz. It also features a Mali-G57 MC2 GPU clocked at 1.1 GHz, and is manufactured using a 6nm manufacturing process.

The phone comes with 256GB of internal storage and 8GB of RAM. The device does not support microSD card expansion.

The phone runs Android 15 with HIOS 15.

The phone features a dual rear camera: a 50MP primary camera with an f/1.8 aperture, and a 0.3MP secondary camera, which is used for aesthetic purposes only. The camera supports autofocus and 2K video recording at 30fps and FHD video recording at 30fps or 60fps.

The 13MP front camera supports 1080p FHD video recording at 30 frames per second.

The 5,160mAh battery supports 45W fast charging.

The phone has stereo speakers with Dolby Atmos support, but it lacks a 3.5mm headphone jack.

It supports Wi-Fi 5 a/b/g/n/ac, dual-band, and hotspot.

Bluetooth 5.3 with LE and A2DP support.

The phone comes with a USB Type-C 2.0 port, which supports OTG.

The Tecno Spark Slim supports GPS, along with other navigation systems such as GLONASS, GALILEO, and BDS.

The device supports NFC and an IR blaster for controlling home appliances using infrared light.

The device comes equipped with a gyroscope, accelerometer, compass, and proximity sensor for calls.

It has an in-display fingerprint sensor and supports Face Unlock.