What phone technologies were announced at Mobile World Congress?

During Mobile World Congress 2026 in Barcelona, China's Honor unveiled "Robot Phone" along with its new Magic V6 foldable phone. Xiaomi announced Leica Leitzphone, a co-branded edition of its 17 Ultra flagship. Tecno unveiled a new phone concept that uses "modular magnetic interconnection technology", and Samsung showcased the Galaxy S26 series. Motorola unveiled book-style foldable smartphone.