The iPhone 12 mini earns a 6 out of 10 on our repairability scale (10 is the easiest to repair):

The two most common smartphone repairs—display and battery—are well-prioritized here.

Most major components are modular enough to be accessed/replaced independently.

Specialized screws complicate repairs, but remain preferable to overuse of glue.

Waterproofing measures make many repairs more difficult, but safeguard against (extremely difficult) water damage repairs.

Glass covering the rear housing is fragile and impractical to replace—a single drop could necessitate replacing the entire body of the iPhone.