Four.
1. Active v1. Design is white with flames, with black buttons and trim. Character is a Mametchi named Xikun on 99th Generation with a baby boy.
2. Inactive v3. Design is green with flowers, with pink buttons and trim. Character was a Yangu Mametchi named Mika on 9th Generation. (How do I remember that kind of thing?! It was inactive since last year!)
3. Broken v3. Design was blue with ocean waves, with yellow buttons and trim. Character was a Teletchi on 1st Generation, not sure which gender, because the screen was so badly broken we could not see the character but we could hear an egg hatch.
4. Active v4. Design is pale blue with diamonds, with light blue buttons and trim.Character is a Mametchi named Zyu on 2nd Generation with a baby boy.