Mizuno RB 566 vs Volvik S4
Which is right for your game?
Mizuno
RB 566
value ionomer
Compression
70 (Mid)
0 120
Volvik
S4
tour urethane
Compression
88 (Mid)
0 120
Spec comparison
Spec
RB 566
S4
Compression
70
88
Cover
ionomer
urethane
Spin
low-mid
mid-high
Feel
soft-mid
soft-mid
Construction
2-piece
4-piece
Category
value
tour
Swing Speed
75–98 mph
90–115 mph
Price tier
Budget
Premium
Choose the RB 566 if…
- ✓ You have a slower swing speed or prefer a softer feel
- ✓ You want strong performance without tour pricing
- ✓ Budget matters — the RB 566 costs less per dozen
- ✓ Entry-level Mizuno with 566-dimple consistent flight
Choose the S4 if…
- ✓ You prioritize short game spin and greenside control
- ✓ You swing over 95 mph and want firmer feedback
- ✓ Volvik's tour ball in their signature matte finish