Modular smartphones might be getting another shot.
Ahead of MWC 2026, TECNO unveiled what it calls the world’s thinnest modular smartphone ecosystem. This is a concept built around magnetic hardware attachments and intelligent connectivity.
The idea isn’t entirely new, but TECNO’s approach feels more refined than earlier attempts.
Instead of bulky clip-on parts, the company’s Modular Magnetic Interconnection Technology allows slim, snap-on modules to attach instantly via magnets and pogo-pin connectors. The goal is to let users expand their phone’s capabilities on demand. Meanwhile, they do this without permanently committing to extra hardware.
The base device itself measures just 4.9mm thick, while the modular Power Bank add-on comes in at 4.5mm. Even combined, TECNO says the thickness remains comparable to a standard smartphone. This is an important detail given how previous modular concepts struggled with bulk.
At launch, the ecosystem includes around ten modules. Highlights include an ultra-thin Power Bank that effectively doubles battery capacity, an Action Camera for alternative shooting angles, and a standalone Telephoto Lens that uses the phone’s display as a live viewfinder. TECNO positions the system as something users can reconfigure moment to moment. As a result, they can attach only what they need, whether that’s extra power, better optics, or added performance.
Connectivity is handled through a hybrid system: a rectangular magnetic array keeps modules securely aligned, while pogo pins deliver efficient power transfer. Data shifts automatically between Wi-Fi, Bluetooth and mmWave. This enables low-latency communication without requiring manual setup.
Visually, TECNO is framing modularity as part of the design language. The phone features a matte anti-glare glass back and polished metal frame, subtly divided into eight alignment zones to guide module placement. Two design variants — the minimalist ATOM edition and the bolder MODA edition — present modular hardware as a form of personal expression. Rather than a purely technical feature, it is also aesthetic.
For now, the Modular Phone remains a concept platform rather than a retail product. TECNO says it’s building the system as a scalable foundation for future AI tools, storage expansions and lifestyle accessories.
Modular phones have come and gone before, but TECNO’s thinner, magnet-first approach suggests the idea isn’t dead just yet – it may simply have needed better engineering.
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