Golf club heads and methods to manufacture golf club heads

A golf club head comprising:

• a hollow body portion having a first interior cavity portion;
• a face portion comprising:
• a perimeter defined by a face toe edge, a face heel edge, a face top edge, and a face sole edge;
• a front surface;
• and
• a back surface opposite the front surface, the back surface comprising:
• a first recess portion;
• a second recess portion located outward from the first recess portion toward the perimeter;
• a ridge portion separating the first recess portion and the second recess portion;
• a back surface perimeter portion located outward from the second recess portion and adjacent to the perimeter, the back surface perimeter portion merging with the ridge portion to fully enclose the first recess portion;
• and
• a wall portion coupled to at least the ridge portion and extending rearwardly from the back surface, the wall portion defining an enclosure with a second interior cavity portion;
• a first filler material at least partially filling the first interior cavity portion;
• and
• a second filler material at least partially filling the second interior cavity portion,
• wherein in a top-to-sole direction, at least a portion of the face portion comprises a first face thickness between the back surface perimeter portion and the front surface, followed by a second face thickness between the second recess portion and the front surface, followed by a third face thickness between the ridge portion and the front surface, followed by a fourth face thickness between the first recess portion and the front surface, and followed by a fifth face thickness between the back surface perimeter portion and the front surface, and
• wherein each one of the first face thickness, the third face thickness, and the fifth face thickness is different from at least one of the second face thickness or the fourth face thickness.

A golf club head comprising:

• a hollow body portion having a first interior cavity portion;
• a face portion comprising:
• a perimeter defined by a face toe edge, a face heel edge, a face top edge, and a face sole edge;
• a front surface;
• and
• a back surface opposite the front surface, the back surface comprising:
• a back surface perimeter portion defining an area of the back surface adjacent to the perimeter;
• a first recess portion located inward of the back surface perimeter portion;
• a second recess portion at least partially located between the first recess portion and the back surface perimeter portion;
• a ridge portion separating the first recess portion and the second recess portion;
• and
• a wall portion defining an enclosure with a second interior cavity portion, the wall portion comprising a first wall portion end coupled to the ridge portion and the back surface perimeter portion, the wall portion extending rearwardly from the back surface to
• a second wall portion end comprising an opening;
• a first filler material at least partially filling the first interior cavity portion, and
• a second filler material at least partially filling the second interior cavity portion.