JOOLA Kosmos Pro V (16mm) vs Ronbus Quanta Pro R4
The JOOLA Kosmos Pro V (16mm) and the Ronbus Quanta Pro R4 are both 16 mm hybrid paddles, so this one comes down to the measured numbers. Across the 6 specs with a clearly better direction the Quanta Pro R4 takes 5 and the Kosmos Pro V (16mm) takes 1. The Quanta Pro R4 swings lighter (113.0 vs 114.0) — quicker hands at the net, where the Kosmos Pro V (16mm) plows through the ball instead. That is a preference, not a win. The Quanta Pro R4 is $179.95 cheaper at $120.00.
Same shape and near-identical core thickness — a genuine either/or. Every number below is lab-measured, not a manufacturer claim.
Spec by spec
| Spec | JOOLAKosmos Pro V (16mm) | RonbusQuanta Pro R4 |
|---|---|---|
| Price | $299.95 | $120.00 |
| Core thickness | 16 mm | 16 mm |
| Static weightNeither is better — it's a feel preference. | 8.0 oz | 7.9 oz |
| Swing weightHigher = more power and plow-through; lower = quicker hands. | 114.0 | 113.0 |
| Twist weightHigher is more forgiving on off-center hits. | 6.68 | 6.51 |
| Balance pointHigher = more head-heavy. | 24.2 cm | 24.0 cm |
| Spin | 2,057 RPM | 2,078 RPM |
| Power | 56.3 MPH | 56.8 MPH |
| Pop | 36.6 MPH | 37.0 MPH |
| Firepower | 64 | 78 |
| Handle length | 5.3 in | 5.5 in |
| Grip size | 4.250 in | 4.125 in |
| Shape | Hybrid | Hybrid |
| Build | Gen 3 | Gen 4 |
| Surface | Raw Texture/Peel Ply | Durable Texture |
| Spin rating | High | High |
| Certification | USAP/UPA-A | USAP |
Highlighted cells win a spec that has an unambiguously better direction (6 of them here). Swing weight, static weight and balance point are never highlighted — neither direction is better, they are feel preferences.
Where each one ranks
JOOLA Kosmos Pro V (16mm)
Ronbus Quanta Pro R4
Percentiles are ranks against paddles measured by the same lab, never blended across labs.
Keep going
Open this in the interactive comparison to add up to two more paddles, or tune either one with lead tape on its own page: Kosmos Pro V (16mm) · Quanta Pro R4.
Static weight 8.0 oz vs 7.9 oz — a few grams of tape moves swing weight far more than static weight, so either can be pushed toward the other.