From the world of "Keitai Sousakan 7" comes Boost Phone Analyzer! On his own this little guy is an unassuming mobile phone, but he can be transformed into a robot on roller tracks! Not only that, but he can be disassembled and his parts added to series antagonist Phone Braver 1, boosting 1's power with some cool gadgets and some body armor. How cool is that?! Boost Phone Analyzer can also be used with other DX Phone Bravers in the series, linked below. See a whole lot more about "Keitai Sousakan 7" at the official website!
Alas, Boost Phone Analyzer is not an actual phone...and his screen display is a sticker. But he's still super-cool!