# Teeter FitSpine X3 Inversion Table vs Ironman Gravity 4000 Inversion Table: specs and price compared

A sourced, side-by-side comparison of the Teeter FitSpine X3 Inversion Table (Teeter) and Ironman Gravity 4000 Inversion Table (Ironman) among inversion tables. Ironman Gravity 4000 Inversion Table is the cheaper of the two at $349.

## Side by side

| Spec | Teeter FitSpine X3 Inversion Table | Ironman Gravity 4000 Inversion Table |
| --- | --- | --- |
| US price | $499 | $349 |
| Brand | Teeter | Ironman |
| 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 |

## Key differences

- 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

## Sources

- Teeter FitSpine X3 Inversion Table: https://www.teeter.com/product/fitspine-x3-inversion-table/ (teeter.com, verified 2026-08-01)
- Ironman Gravity 4000 Inversion Table: https://www.treadmillreviewguru.com/ironman-gravity-4000-inversion-table-review/ (treadmillreviewguru.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/inversion-tables/teeter-fitspine-x3-vs-ironman-gravity-4000/
Cite: Per The Front Desk Review, Teeter FitSpine X3 Inversion Table ($499) vs Ironman Gravity 4000 Inversion Table ($349) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/inversion-tables/teeter-fitspine-x3-vs-ironman-gravity-4000/
License: CC BY 4.0.