| Album Title | Release date | us | uk | aus | bra | can | ita | esp | fra |
|---|---|---|---|---|---|---|---|---|---|
| ‘OK’ Episode 1 : OK Not - EP | 88 | 88 | 6 | ||||||
| 'OK' Episode 2 : I'm OK - EP | 76 | 17 | 3 | 17 | 10 | 70 | |||
| 'OK' Prologue : Be OK | 50 | 20 | 52 | ||||||
| CIX 4th EP Album ‘HELLO’ Chapter Ø. Hello, Strange Dream | 44 | 40 | 5 | 77 | |||||
| HELLO Chapter 1: Hello, Stranger - EP | 97 | ||||||||
| HELLO Chapter 2: Hello, Strange Place - EP | 51 | 83 | |||||||
| HELLO Chapter 3: Hello, Strange Time - EP | 41 | 26 | 36 |
| Song Title | Release date | us | uk | aus | bra | can | ita | esp | fra |
|---|---|---|---|---|---|---|---|---|---|
| Jungle | 12 | ||||||||
| Lovers or Enemies | 4 | ||||||||
| Pinky Swear | 13 | ||||||||
| Save me, Kill me | 21 |