At MWC, Tecno’s super-thin modular concept phone doesn't even have a wired charging port

Engadget

by Mat Smith

March 2, 2026

AI-Generated Deep Dive Summary

At Mobile World Capital (MWC) 2026, Tecno showcased a groundbreaking modular smartphone concept that redefines what a smartphone can be. The ultra-thin device, measuring just 4.9mm without any wired charging port, offers unparalleled customization through its interchangeable modules. These include telephoto lenses, ultrawide cameras, action cams, and even a walkie-talkie module with mmWave connectivity. Users can stack multiple modules to create a highly functional yet oddly proportioned smartphone, though the practicality of such a design remains questionable. The concept phone’s minimalist base includes a screen, basic camera, and four low-profile pogo-pin connectors for attaching additional components. Tecno demonstrated two families of modular parts in different colorways, ranging from bulky telephoto lenses (weighing over three times the base unit) to sleek periscope telephotos and subtle ultrawide options. Some modules even support wireless transmission via Bluetooth or Wi-Fi, while one standout feature transforms the phone into a walkie-talkie-like device capable of communication without cell service. One of the most intriguing aspects is its battery system. The phone’s slim profile houses a small battery, but users can add up to three external 3,000mAh packs for extended续航, totaling 10,000mAh. Charging is handled through modular attachments rather than a traditional USB-C port. While the concept is impressive, concerns about the durability of magnetic connections and the inconvenience of carrying multiple modules highlight potential real-world challenges. Tecno’s modular approach builds on its history of innovative but often niche devices. The company has struggled to achieve mainstream success, with previous attempts like Google’s Project Ara

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Originally published on Engadget on 3/2/2026