Tecno is set to make a significant impact at MWC 2025 with the introduction of the Tecno Spark Slim, an innovative concept smartphone that is being marketed as the world’s thinnest smartphone. At just 5.75mm in thickness, the Spark Slim redefines ultra-thin smartphone engineering while still packing a 5,200mAh battery a feat rarely seen in such compact devices.

The Tecno Spark Slim will be showcased at MWC 2025 in Barcelona, where the brand aims to highlight its latest advancements in smartphone design and technology.

Tecno Spark Slim Specifications and Features

Ultra-Thin Design with Premium Build

The Tecno Spark Slim boasts an incredibly slim 5.75mm profile, making it one of the thinnest smartphones ever. Despite its ultra-thin frame, Tecno has managed to integrate a massive 5,200mAh battery while maintaining durability. The phone is built using fully recycled aluminium, adopting an integrated die-casting process and a stainless steel frame for enhanced strength.

Immersive Display with High Brightness

The device features a 6.78-inch 3D curved AMOLED display with 1.5K resolution and a 144Hz refresh rate, ensuring smooth visuals and an immersive experience. The panel also boasts a peak brightness of 4,500 nits, making it ideal for outdoor visibility under direct sunlight.

Powerful Camera Setup

For photography, the Tecno Spark Slim is equipped with a 50MP dual rear camera system, capable of capturing high-resolution images with enhanced detail. On the front, a 13MP selfie camera ensures clear video calls and social media-ready selfies.

Performance and Battery Efficiency

While Tecno hasn’t revealed the exact chipset, the Spark Slim is confirmed to feature an octa-core CPU, expected to deliver smooth performance for daily tasks. The smartphone is powered by a 5,200mAh battery, offering extended usage time, and supports 45W fast charging, ensuring quick refueling. The battery itself measures just 4.04mm in thickness, further emphasizing Tecno’s engineering prowess.

Pricing, Availability, and Market Competition

Tecno has yet to disclose the pricing and availability details of the Spark Slim. Since it is being showcased as a concept smartphone at MWC 2025, it remains unclear whether it will see a commercial release. However, if it enters the market, it could compete with upcoming devices like the Samsung Galaxy S25 Edge and the rumored iPhone 17 Slim (or Air), both of which are expected to focus on ultra-thin design and premium features.

More details about the Tecno Spark Slim are expected to be announced during MWC 2025, which will take place from March 3 to March 6 in Barcelona, Spain.

Conclusion

The Tecno Spark Slim stands out as a groundbreaking concept in the world of ultra-thin smartphones. By combining an incredibly slim 5.75mm profile with a 5,200mAh battery, a vivid AMOLED display, and a 50MP camera setup, Tecno is pushing the boundaries of smartphone engineering. With its official showcase at MWC 2025, tech enthusiasts can expect more insights into whether this concept will evolve into a commercially available device.