DEF TECH by DEF TECH has sold 1,963,000 copies in Japan.
DEF TECH certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
1,963,000 | Oricon charts |
Japan Sales: 1,963,000
Certification / note: Oricon charts
Certification Date / sales as of:
|
|
| Total sales | 1,963,000 | (in 1 country) |
Total
Sales: 1,963,000
(in 1 country)
|
Year-end chart performance for DEF TECH
| Chart 2005 | Rank | Sales |
| Japanese Albums (Oricon) |
4 | 1,657,631 |
| Chart 2006 | Rank | Sales |
| Japanese Albums (Oricon) |
42 | 295,302 |