TECNO introduced the SPARK Slim at MWC 2025 on the 3rd of March 2025, showcasing the world’s thinnest 5.75mm phone with a 5200mAh+ battery. As a concept phone, the Spark Slim showcases TECNO’s ability to innovate and push the boundaries of smartphone design. Its unique features highlight the potential for future devices in the market.
Overall, the TECNO Spark Slim represents a significant step forward in smartphone design, combining advanced technology with a focus on sleekness and functionality.
The Spark Slim is currently a concept phone and may not be released in its current form.
Here are some key details about the device:
| Specification | Details |
| Design | Ultra-slim profile measuring 5.75mm in thickness. |
| Weight | It weighs only 146 grams, making it one of the lightest smartphones. |
| Display | 6.78-inch 3D Curved AMOLED with a 1224p (1.5K) resolution, 144Hz refresh rate, and peak brightness of 4,500 nits. |
| Processor | Features an octa-core CPU (specific chipset not disclosed). |
| Camera | Dual rear cameras, each 50MP, and a 13MP front-facing camera. |
| Battery | TECNO has designed a custom 5,200mAh battery that is only 4.04mm thick, allowing the phone to remain slim while providing substantial power. |
| Charging | Supports 45W fast charging. |
| Operating System | Android 15. |
| Build Materials | The phone features a unibody construction with options for a stainless steel-colored plastic or a ceramic rear panel. The front is protected by Corning Gorilla Glass. |
| Additional Features | LED notification light-bar between the rear cameras. Custom hardware components, including a specially designed Type-C port No SIM slot |
The TECNO Spark Slim is a remarkable example of innovation in smartphone design, combining a sleek and lightweight build with impressive features. Overall, the TECNO Spark Slim represents a significant step forward in smartphone design, combining advanced technology with a focus on sleekness and functionality.