Realme's 9 Pro series budget phones will have a color-changing design

The Realme 9 Pro series phones will be the first to launch in Europe with a color-changing back.

What you need to know

• Realme has "unveiled" the design of its upcoming 9 Pro series phones.
• Both Realme 9 Pro series phones will feature a color-changing back.
• The phones' "Light Shift Design" is inspired by photochromism and organic photochromic materials.

Realme is soon expected to unveil two new additions to its "Number Series" of budget phones. Ahead of their formal unveiling later this month, Realme has detailed the new "Light Shift Design" of the upcoming Realme 9 Pro series.

The Sunrise Blue variant of the two phones will have a color-changing back cover that apparently "transitions from blue to red in five seconds under sunlight or ultraviolet light." It fades back into blue when the phone is out of direct light.