Body Measurements
mojo tracks the following body metrics to help you understand how your body changes throughout your weight loss journey.
What Gets Tracked
Primary Measurements:
- Weight (kg / lb)
- Body Fat % (%)
- Fat Mass (kg / lb) — can be logged independently or calculated automatically from weight × body fat %
- Muscle Mass (kg / lb) — skeletal muscle weight
Specialized Measurements (Premium):
- Visceral Fat Level (supports one decimal place)
- Waist Circumference (cm / in)
Visceral fat level is a measurement provided by body composition scales (e.g., TANITA, Omron). Different brands may use different grading thresholds; mojo groups your value into a reference tier (normal / slightly high / high) to make it easier to read.
How to Log Data
Auto-Sync (Recommended)
Use a smart scale that supports Apple Health / Health Connect. After stepping on the scale, your data syncs to mojo automatically.
What can sync automatically:
- Weight and body fat % (iOS + Android)
- Waist circumference (iOS only, via Apple Health)
Manual Entry
Go to Settings → Data Management → Body Measurements and tap the ”+” button in the top right.
The following can only be entered manually for now:
- Muscle mass (Apple Health and Health Connect don’t support skeletal muscle mass)
- Visceral fat level
- Waist circumference (Android)
On iOS, you can also import historical measurements from a CSV file (not yet available on Android) — see Backup, Restore & Transfer.
Progress Charts
View trend charts in the Progress tab:
- Weight, body fat, and muscle mass trends over time
- Time range options: 1 month / 3 months / 6 months / All
- Tap a data point to see the exact value
- Automatically displays in your preferred unit (kg/lb)
The charts line up with your injection schedule, using measurements taken around each injection. Building a habit of weighing yourself before each injection will give you more complete chart data. If a measurement isn’t showing up on the chart, see the FAQ.