JumpSport 350 PRO 39 Inch Fitness Trampoline Indoor Rebounder Cardio Workout Equipment…
- Fitness Trampoline
- 300 pounds
- Alloy Steel
- Alloy Steel
- Better rated than 88%
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How it ranks among the 34 fitness trampolines we track
4.7★ across 668 Amazon ratings, Bayesian-smoothed toward the category average.
668 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 34 fitness trampolines we track - how the scorecard works · full fitness trampolines data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jul 5, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 39-inch mini trampoline rebounder with adjustable-tension cords, arched no-tip steel legs and a 300 lb weight capacity, built for low-impact cardio workouts at home.
Several buyers came to this after trying cheaper rebounders that felt unstable or caused knee discomfort, and describe this one as noticeably firmer and quieter by comparison. It ships fully assembled rather than folding flat, which some note is a tradeoff for the sturdier feel. The 4-knot cords let you dial bounce firmness up or down as your fitness level changes.
- 4-knot EnduroLast cords with adjustable tension
- Arched no-tip legs on a 16-gauge steel frame
- 300 lb weight capacity
- 60-day access to JumpSport Fitness TV workouts
Who it's for
Suits people wanting low-impact cardio at home, including older adults and those managing joint or balance concerns. Less suited to anyone who specifically needs a trampoline that folds flat for compact storage.
What buyers say
From Amazon customer reviews.
Buyers repeatedly compare this favorably to cheaper rebounders they had tried before, including ones that caused knee discomfort, calling this one quieter and more stable. Several used it while managing balance issues, hip or knee recovery, or age-related fitness limits, describing steady daily sessions over weeks or months. One reviewer wished replacement foot caps were available as spares.
Strengths and trade-offs
Drawn from this product's published specifications.
- Quiet, stable bounce even at higher body weights
- Tension adjusts from firm to extra firm
- Steady footing praised by older and injured users
- Does not fold flat, stores upright only
- Heavier build than basic rebounders
- Safety bar sold separately
Performance notes
The patented arched legs and 16-gauge steel frame keep the unit grounded without the wobble reviewers associate with cheaper models, and the adjustable EnduroLast cords deliver a customizable bounce from firm to extra firm. It stores upright on its side rather than folding flat, and comes fully assembled with an included Allen wrench for the legs.
Specifications
| Brand | JumpSport |
|---|---|
| Model | RBJ-S-20744-13 |
| Dimensions & fit | |
| Maximum Weight Recommendation | 300 pounds |
| Item Weight | 21.8 pounds |
| Item Dimensions L x W x H | 39 × 39 × 12.5 inches |
| Frame Size | 39 inches |
| Construction & materials | |
| Frame Material Type | Alloy Steel |
| Material Type | Alloy Steel |
| Color | Matte Black |
| Included components | |
| Unit Count | 1 |
| Included Components | Fitness Trampoline |
| Warranty & support | |
| Warranty Description | Lifetime |
| Other details | |
| Pad Type | Foam Pad |
| Number Of Springs | 36 |
| Shape | Round |
| Item Type Name | Fitness Trampoline |
Other JumpSport fitness trampolines
How it compares
This product against the closest alternatives we track in fitness trampolines.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| JumpSport 350 PRO 39 Inch Fitness Trampoline Indoor Rebounder Cardio Workout Equipment…This product | 4.7 / 5 | 668 | 4.3 / 5 |
| Stamina 36" Foldable Mini Trampoline Rebounder for Adults with Smart Workout AppStamina | 4.4 / 5 | 16,398 | 4.4 / 5 |
| BCAN SP2 40/48" Foldable Mini Trampoline Max Load 330lbs/440lbsBCAN | 4.4 / 5 | 12,365 | 4.3 / 5 |
| Kanchimi 40" 48" Folding Mini Fitness Indoor Exercise Workout Rebounder Trampoline with…Kanchimi | 4.2 / 5 | 4,778 | 4.2 / 5 |
| ZCMHAXJ Foldable Mini TrampolineZCMHAXJ | 4.3 / 5 | 978 | 4.2 / 5 |
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Questions about the JumpSport RBJ-S-20744-13
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much weight can the JumpSport 350 PRO trampoline hold?
It is rated for up to 300 lbs.
Can I adjust how firm the JumpSport 350 PRO bounce feels?
Yes, the 4-knot EnduroLast cords can be adjusted for a range of tension settings from firm to extra firm.
Does the JumpSport 350 PRO fold flat for storage?
No. Reviewers note it stores upright on its side rather than collapsing into a compact folded shape.