Spec
RAD Roller Original
Pro-Tec Orb Extreme
Price
$25
$17
Rating
4.7 ★
4.6 ★
Diameter
2.75 in
4 in
Firmness
8/10
9/10
Vibration
None
None
Battery
N/A
N/A
Weight
6 oz
8.5 oz
+Spine-safe peanut design
+Stays in place
–Awkward for single points
–Mid-tier price
+4in size for glutes/quads
+EVA holds shape
–Too big for feet/forearms
–Very firm