Fit3D vs InBody: Which Body Fat Test Is Better for Tracking Progress?

Two Popular Tools — But Very Different Experiences

If you’ve looked into body fat testing, you’ve probably seen these two names:

  • Fit3D — a 3D body scanner using infrared cameras

  • InBody — a body composition scale using bioelectrical impedance (BIA)

Both are used in gyms and wellness centers. Both give you more information than a regular scale. But which one gives better results, and better long-term value?

At Excel Health & Fitness in Manteca, we chose Fit3D for a reason. Let’s compare the two.

How the Technology Works

Fit3D Scanner

  • Uses infrared cameras to create a 3D model of your body

  • Captures hundreds of measurements in under 60 seconds

  • Measures posture, shape, symmetry, circumference, and more

  • Tracks visual progress with side-by-side scan comparisons

InBody Scale

  • Uses bioelectrical impedance (tiny electric current)

  • Estimates body fat, lean mass, and hydration based on resistance

  • Often requires bare feet and hand contact

  • Results vary depending on hydration, food, and timing

Which One Is More Accurate?

Here’s the catch, both are estimates, not clinical measurements like a DEXA scan.

But Fit3D tends to be:

  • More consistent over time

  • Less affected by hydration, caffeine, or what you just ate

  • Better for tracking visible and measurable physical change

InBody can be useful — but if you’re dehydrated, your results may be way off.

What You Actually Get With Each Scan

3D Avatar of Your Body

  • Fit3D: Yes

  • InBody: No

Posture and Balance Analysis

  • Fit3D: Yes

  • InBody: No

Muscle & Fat Breakdown

  • Fit3D: Yes (visual and numerical)

  • InBody: Yes (numerical only)

Consistency Across Conditions

  • Fit3D: More consistent

  • InBody: Easily skewed by hydration or meals

Visual Progress Tracking

  • Fit3D: Yes

  • InBody: No

Uses Electric Current

  • Fit3D: No

  • InBody: Yes

Scan Time

  • Fit3D: Around 60 seconds

  • InBody: Around 45 seconds

Cost at Excel (Manteca)

  • Fit3D: $35 for members, $49 for non-members

  • InBody: Varies depending on location

Which One Should You Choose?

  • Choose Fit3D if you want:

    • A visual, measurable way to track real physical changes

    • Posture and symmetry data

    • More consistent results over time

  • Choose InBody if:

    • You just want a fast, basic estimate

    • You’re tracking hydration or internal metrics only

Both tools have their place, but for tracking external change, Fit3D gives you a clearer picture.

Why Excel Uses Fit3D in Manteca

We chose Fit3D because our members wanted more than just numbers. They wanted proof of progress, especially when the scale wasn't moving.

Fit3D shows them:

  • Inches lost

  • Shape changing

  • Muscle definition improving

  • Better posture and balance

That kind of feedback keeps people motivated and focused.