Spec
Hyperice Hypersphere Mini
Pro-Tec Orb Extreme
Price
$99
$17
Rating
4.6 ★
4.6 ★
Diameter
3.2 in
4 in
Firmness
8/10
9/10
Vibration
3 speeds
None
Battery
2 hrs
N/A
Weight
12.8 oz
8.5 oz
+3-speed vibration
+TSA carry-on approved
–$99 for a ball
–Heavier than passive balls
+4in size for glutes/quads
+EVA holds shape
–Too big for feet/forearms
–Very firm