Teeter
Teeter FitSpine X3 Inversion Table
$499
Best Inversion Tables · head-to-head
Teeter FitSpine X3 Inversion Table vs Ironman Gravity 4000 Inversion Table
A sourced, side-by-side comparison. Ironman Gravity 4000 Inversion Table is cheaper at $349. Every spec and price links to its source.
Ironman
Ironman Gravity 4000 Inversion Table
$349Cheaper
Which is better: the Teeter FitSpine X3 Inversion Table or Ironman Gravity 4000 Inversion Table?
The Teeter FitSpine X3 Inversion Table wins 2 of the 2 specs we compare head to head; the other wins 0. The Ironman Gravity 4000 Inversion Table is the cheaper at $349. Get the Teeter FitSpine X3 Inversion Table for the stronger spec sheet, the Ironman Gravity 4000 Inversion Table to spend less.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Teeter FitSpine X3 Inversion Table | Ironman Gravity 4000 Inversion Table |
|---|---|---|
| US price | $499 | $349 |
| Brand | Teeter | Ironman |
| Released | — | — |
| Weight capacity (lb) | 300 | 350 |
| Max user height (in) | 78 | 78 |
| Inversion angle range | 0-60 degrees via preset stops at 20/40/60 degrees on the tether strap; full inversion achievable | — |
| Foldable | Yes | Yes |
| Ankle lock type | Deluxe EZ-Reach Ankle System with extra-long handle and secure micro-adjusting closure | Easy Reach Adjusting Ratchet Ankle Locking System with lever adjustment |
| Backrest material | FlexTech backrest with firm surface, supported by an 8-Point Floating Suspension System | Memory foam padding with double-stitched vinyl covering |
| Heat massage | None — includes removable, non-electric acupressure nodes only, no heating element | None |
| Assembled weight (lb) | 65.8 | 76 |
Sources — Teeter FitSpine X3 Inversion Table: teeter.com (verified 2026-08-01). Ironman Gravity 4000 Inversion Table: treadmillreviewguru.com (verified 2026-08-01).
What's the difference between the Teeter FitSpine X3 Inversion Table and Ironman Gravity 4000 Inversion Table?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Weight capacity (lb): Teeter FitSpine X3 Inversion Table 300 vs Ironman Gravity 4000 Inversion Table 350
- Ankle lock type: Teeter FitSpine X3 Inversion Table Deluxe EZ-Reach Ankle System with extra-long handle and secure micro-adjusting closure vs Ironman Gravity 4000 Inversion Table Easy Reach Adjusting Ratchet Ankle Locking System with lever adjustment
- Backrest material: Teeter FitSpine X3 Inversion Table FlexTech backrest with firm surface, supported by an 8-Point Floating Suspension System vs Ironman Gravity 4000 Inversion Table Memory foam padding with double-stitched vinyl covering
- Heat massage: Teeter FitSpine X3 Inversion Table None — includes removable, non-electric acupressure nodes only, no heating element vs Ironman Gravity 4000 Inversion Table None
- Assembled weight (lb): Teeter FitSpine X3 Inversion Table 65.8 vs Ironman Gravity 4000 Inversion Table 76