Springfree
Springfree Jumbo Square (S155)
$2499
Best Trampolines · head-to-head
Springfree Jumbo Square (S155) vs Vuly Thunder Pro (Large)
A sourced, side-by-side comparison. Springfree Jumbo Square (S155) is cheaper at $2499. Every spec and price links to its source.
Which is better: the Springfree Jumbo Square (S155) or Vuly Thunder Pro (Large)?
The Springfree Jumbo Square (S155) wins 1 of the 1 specs we compare head to head; the other wins 0.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Springfree Jumbo Square (S155) |  Vuly Thunder Pro (Large) |
|---|---|---|
| US price | $2499 | — |
| Brand | Springfree | Vuly |
| Released | — | — |
| Shape | square | round |
| Frame size (ft) | 13 | 14 |
| Jumping area sq (ft) | 155 | — |
| Spring system | fiberglass-rod | leaf-spring |
| Spring count | — | — |
| Spring length (in) | — | — |
| Max user weight (lb) | 220 | 330 |
| Total weight capacity (lb) | 1500 | — |
| Galvanized frame | Yes | Yes |
| Warranty years | 10 | 10 |
| Astm certified | Yes | — |
Sources — Springfree Jumbo Square (S155): springfreetrampoline.com (verified 2026-07-11). Vuly Thunder Pro (Large): amazon.com (verified 2026-07-11).
What's the difference between the Springfree Jumbo Square (S155) and Vuly Thunder Pro (Large)?
Where the two actually differ on the specs we track (4 of 11). Matching specs are omitted.
- Shape: Springfree Jumbo Square (S155) square vs Vuly Thunder Pro (Large) round
- Frame size (ft): Springfree Jumbo Square (S155) 13 vs Vuly Thunder Pro (Large) 14
- Spring system: Springfree Jumbo Square (S155) fiberglass-rod vs Vuly Thunder Pro (Large) leaf-spring
- Max user weight (lb): Springfree Jumbo Square (S155) 220 vs Vuly Thunder Pro (Large) 330