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Last updated: February 13, 2026
Bod Pod wins on accuracy. FitCommit wins on cost, convenience, and tracking frequency. For most people who want to track body fat regularly without spending $75-150 per visit, FitCommit is the practical choice. Use Bod Pod for quarterly validation if you want clinical-grade precision.
Good accuracy
Very good accuracy
Uses computer vision AI to analyze three photos (front, side, back) and estimate body fat percentage, lean mass, and body composition. Results in under 60 seconds.
Air displacement plethysmography measures body volume by detecting changes in air pressure inside a sealed egg-shaped chamber. Combined with body weight, it calculates body density and estimates fat vs lean mass.
| Category | FitCommit | Bod Pod | Winner |
|---|---|---|---|
| Accuracy | Good (+/- 3-5%) | Very good (+/- 2-3%) | Bod Pod |
| Cost | $3.99/mo (unlimited) | $50-75 | FitCommit |
| Convenience | Phone camera, anywhere | Universities, sports labs, some clinics | FitCommit |
| Time Per Test | 60 seconds | 5-10 minutes | FitCommit |
| Tracking Frequency | Weekly or more | Quarterly | FitCommit |
FitCommit calculates lean mass, TDEE (using the Katch-McArdle formula from your lean mass), daily macro targets, and generates a transformation timeline. It also includes AI food scanning for macro tracking.
FitCommit works well for tracking direction and rate of change during a prep. For stage-day precision (sub-1% accuracy), a DEXA scan closer to competition is recommended. Many competitors use FitCommit weekly and DEXA quarterly.
Most apps estimate TDEE from height, weight, age, and a generic activity multiplier. FitCommit measures your lean mass via body scan and uses the Katch-McArdle formula (BMR = 370 + 21.6 x lean mass in kg), which is more accurate because muscle tissue burns more calories than fat.
A smartphone camera, decent lighting, and form-fitting clothing (or minimal clothing). Take three photos: front, side, and back. The AI processes results in under 60 seconds. No special equipment or appointments needed.
6 deficit levels with timelines and calorie targets for fat loss phases
3 surplus levels with timelines and calorie targets for muscle gain phases
Exact timelines for losing 5, 10, 20, 50, or 100 pounds at different deficit levels
Understand deficit and surplus percentages with TDEE calculations
AI body scan from your phone camera. Body fat percentage, lean mass, TDEE, and macros. No equipment. No gym. Free 7-day trial.
Try FitCommit Free