TECNO has officially launched its groundbreaking TECNO Slim series at IFA 2025, setting a new milestone in smartphone design and performance. The lineup includes the TECNO SPARK Slim (4G) with a 5.93mm profile and the TECNO POVA Slim (5G) at 5.95mm, both ranking among the world’s thinnest smartphones with 3D-curved AMOLED displays. Despite their record-breaking slimness, the models pack a 5160mAh battery with 45W fast charging, along with military-grade durability certification, balancing elegance with resilience.

Engineering Breakthrough in Structural Innovation

At under 6mm, TECNO Slim pushes smartphone miniaturization further than ever before. The company has re-engineered eight core modules, including the battery, speaker, SIM slot, and charging connector, achieving unmatched compactness. The device also introduces a 0.45mm single-tab Type-C connector inspired by foldables, reducing bulk. Combined with TECNO’s Honeycomb stacking technology, the phone gains 12% more internal space efficiency, proving that ultra-thin does not mean underpowered.

Strength Meets Slimness

To maintain strength within its ultra-slim body, TECNO uses a 0.36mm aerospace-grade fiberglass back cover that is 300% stronger and 200% tougher than standard composite plates. On the front, Corning Gorilla Glass 7i adds protection against scratches and drops, while IP64-rated water and dust resistance further enhances reliability. Certified Military-Grade Shock Resistant, the TECNO Slim offers toughness within a feather-light form.

Power and Endurance in a Slim Package

Battery life, often a weak point in slim devices, has been revolutionized with TECNO Slim. The 5160mAh high-density lithium cobalt oxide battery achieves extended longevity while staying just 4.04mm thick. Even after 2,000 charge cycles, it retains 80% capacity, delivering over five years of reliable use. Coupled with 45W fast charging, users enjoy up to 28 hours of usage on a single charge. An advanced cooling system with vapor chamber and graphite layers ensures smooth performance under heavy loads.

Advanced Performance and Immersive Displays

The TECNO Slim offers distinct performance solutions: the 4G version with Helio G200 and the 5G model powered by MediaTek Dimensity 6400 5G+, ensuring efficiency and next-gen connectivity. Both feature curved AMOLED displays with 1.5K resolution, 144Hz refresh rate, and up to 4,500 nits peak brightness, delivering sharp, vibrant visuals for gaming, streaming, and outdoor use.

Smarter Interactions and AI Features

The phone introduces a Mood Light design with two circular “eyes” on the back that express emotions with light animations during calls, charging, or notifications. It also comes with TECNO AI features, including real-time translation, AI-powered writing tools, Circle-to-Search, and the Ella AI assistant. Additional features such as multifunctional NFC, HiOS based on Android 15, and FreeLink connectivity enhance everyday usability.

Pioneering a New Era for Ultra-Slim Phones

TECNO Slim is more than a smartphone; it is a redefinition of what slim technology can achieve. Within just half a year of development, TECNO has merged slim design, durability, and class-leading performance, creating a device tailored for both global and emerging markets. By delivering compromise-free design with powerful performance, TECNO Slim sets a new benchmark in the evolution of smartphones, proving that thinner can indeed be stronger.

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After teasing its ultra-thin concept phone earlier this year, Tecno has officially launched the Tecno Spark Slim and Tecno Pova Slim. Both devices keep the spotlight on thinness, while still packing in surprisingly powerful hardware.

The Spark Slim measures just 5.75mm, nearly identical to the concept version shown off months ago. Inside that frame, Tecno managed to squeeze in a 5,160mAh battery, made possible by its custom Honeycomb space stacking technology. 

The battery itself is just 4.04mm thick, while the phone also has a razor-thin 0.3mm vapor chamber that helps keep thermals under control. To top it off, both phones use an aerospace-grade fiberglass back measuring only 0.36mm.

On the outside, the Spark Slim also gets a unique touch: a Mood Light LED bar that brings multi-scene lighting effects and animated notifications. Both phones share a 50MP main rear camera, but Tecno seems to be betting more on design and display than on a heavy camera system.

Speaking of display, both the Spark Slim and Pova Slim come with curved AMOLED screens, offering a smooth 144Hz refresh rate and an impressive 4,500 nits peak brightness. Under the hood, the Spark Slim runs on MediaTek’s Helio G200, while the Pova Slim is powered by the Dimensity 6400, giving it 5G support out of the box.

The phone supports 45W wired charging and 10W reverse wired charging, and boots on Android 15 (HiOS skin), complete with Tecno’s latest AI-powered features.

The company has not revealed the price or availability details yet. Tecno has an event scheduled for September 4 for this.

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Slim phones are finding their way back into the smartphone timeline. Samsung kicked things off with the Galaxy S25 Edge last year, Apple is preparing to launch the iPhone 17 Air next week, and now Tecno is stepping in with a contender of its own.

The company has confirmed it will launch the Pova Slim 5G on September 4th. Tecno is calling it the world’s slimmest smartphone with a curved display. 

The exact dimensions aren’t official yet, but earlier this year at MWC, the company showed off a concept device called the Spark Slim that measures just 5.75mm thick. The Pova Slim looks strikingly similar to that prototype, so it could be that Tecno is turning its concept into a mass-market product under a different name.

Even so, it might not take the crown for long. The iPhone 17 Air is rumored to be even thinner, reportedly coming in at just 5.5mm.

What do we know about Tecno Pova Slim?

Not the thickness, but Tecno has shared a few other details about the Pova Slim. It will support AI tools like Circle to Search and the company’s own Ella AI assistant, which can handle Indian languages. 

Incredibly, Tecno also claims that the phone can make calls without a cellular network. Though the catch is that it relies on Bluetooth to connect directly with another device, which only works if it’s within range.

For everything else, you still get proper 5G connectivity with carrier aggregation. Tecno is also adding some flair to the hardware with a “dynamic mood light” design, which is LEDs around the rear cameras that can glow when you want them to.

And despite its thin frame, the Pova Slim 5G is expected to pack a sizable 5,000mAh battery, according to earlier reports.

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