Tecno has introduced the Spark Slim, touted as the world’s thinnest smartphone at 5.75 mm, during Mobile World Congress 2025. Featuring a 6.78-inch Full HD AMOLED display with a 144 Hz refresh rate and a dual-camera setup, it aims to compete with flagship models like the Galaxy S25 Edge. Tecno, part of Transsion Holdings, has established a strong foothold in Africa by offering affordable smartphones tailored to local needs, despite limited recognition in Western markets.
Tecno Unveils the Spark Slim at Mobile World Congress 2025
Tecno, a rapidly growing Chinese smartphone brand, has made waves by showcasing its latest innovation, the Tecno Spark Slim, at the Mobile World Congress 2025. Although no official release date or pricing details have been announced yet, the intriguing specifications make this device a topic of discussion among tech enthusiasts. With a remarkable thickness of just 5.75 mm, Tecno boldly claims that the Spark Slim is the thinnest smartphone in the world, housing a substantial 5,200 mAh battery. While this claim may hinge on specific measurements, it’s an impressive feat nonetheless.
Design and Features of the Spark Slim
One caveat to consider is the camera bump that accompanies the sleek profile, which is visible in promotional images. However, the overall design of the Spark Slim is so aesthetically pleasing that this minor flaw is easily forgiven. The device boasts a stunning 6.78-inch Full HD AMOLED display with a refresh rate of 144 Hz, further enhancing its slim appearance.
In contrast to the Galaxy S25 Edge, the Spark Slim features a dual-camera setup on its rear, likely consisting of a wide-angle and an ultra-wide-angle lens. This addition may cast a slight shadow over the Galaxy S25 Edge, yet it’s not a cause for concern in the competitive landscape.
The curved screen design of the Spark Slim draws parallels to Samsung’s original Note Edge concept introduced a decade ago, showcasing a trend that Tecno is eager to capitalize on in light of the anticipated Galaxy S25 Edge and rumors surrounding a thinner iPhone model. While full details are still pending, it’s clear that Tecno is making swift advancements in the smartphone arena. As this device remains a concept, it may serve more as a marketing strategy than an imminent commercial release.
Attendees of the Mobile World Congress can expect additional announcements from Tecno, including a foldable smartphone and smart glasses. Meanwhile, the Galaxy S25 Edge is expected to hit the market as early as April, rumored to be 5.6 mm thick.
Understanding Tecno’s Market Position
Tecno is a name that might ring a bell for those familiar with the smartphone landscape. As a member of the Transsion Holdings group, headquartered in Shenzhen and established in 2006, Tecno has carved out a niche for itself in the global market.
Though it remains relatively unknown in Western markets and even in China, where its products are not sold, Tecno has emerged as a significant player in Africa. With a portfolio that includes brands like Infinix and Itel, Transsion has secured its dominance by providing affordable smartphones tailored to meet local demands. Since its entry into the African market in 2008, Tecno has employed a “glocal” strategy, focusing on designing products specifically for the continent while maintaining a robust local presence, including a factory in Ethiopia. Today, Tecno commands nearly half of the African smartphone market, surpassing even Samsung.