‘World’s thinnest modular phone concept’ tries to make add-ons cool again

Source: Android Authority

TL;DR

• TECNO will showcase an ultra‑thin modular phone concept at MWC 2026.
• The concept lets users snap hardware modules onto a phone without turning it into a bulky brick.
• The base phone is only 4.9 mm thick, and attachments are designed to keep the overall profile competitive with conventional slab phones.

Overview

Modular smartphones have never become mainstream, but TECNO is giving the idea another try, focusing on an ultra‑thin design. At MWC 2026, the company will present the TECNO Modular Phone, powered by its “Modular Magnetic Interconnection Technology.” This ecosystem allows users to attach lean hardware modules to a razor‑thin base phone, avoiding the bulk that has plagued previous modular attempts.

Modular Ecosystem

The concept includes roughly ten accessories, such as:

• Power Bank module – 4.5 mm thick, effectively doubling usable battery life.
• Action Camera module – Provides new shooting angles.
• Telephoto Lens module – Uses the phone’s display as a live viewfinder.

The idea is to carry only the modules needed for a particular task, rather than permanently housing bulky hardware that is rarely used.

Designs

TECNO is displaying two aesthetic variants:

• ATOM edition – Minimalistic with a silver aluminum finish and subtle red accents.
• MODA edition – A more “geek‑inspired” look.

Both editions share the same modular capabilities.

Outlook

While it is unlikely that this specific modular phone concept will reach consumers in its current form, TECNO claims the technology is designed to scale and could appear in future devices in some capacity.