Tecno just unveiled a rather intriguing modular smartphone concept design at MWC 2026. The standout feature here is likely the size. Most modular smartphone concepts start bulky and only get bulkier once attaching accessories. Tecno’s base smartphone is just 4.9mm thin, which is significantly thinner than a pencil and the iPhone Air.
Of course, the size increases with each attached module. However, snapping on the power bank module makes the thickness comparable to a standard modern smartphone. Another key feature here is how these
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