See what’s building you.

The wearable that shows how your muscles respond to every exercise.

Join the waitlist

Built for strength training

Stop guessing what works.

You track your sleep. Your steps. Your heart rate. But not the thing you’re actually training. Your muscles.

How it works

Your workout, measured at the muscle.

The Form band — a soft elastic sensing band with a small removable sensor pod
01

Wear it.

Place the Form band around the muscle you’re training.

02

Lift normally.

The band senses contraction, expansion and movement throughout every set.

03

See what works.

Compare how your muscles respond to different exercises and watch your progress over time.

9:41
Form Live session

Glutes

Hip thrust

12 reps

Muscle response

0

Time under tension 43 sec

Squat

10 reps

Muscle response

0

Your body doesn’t respond equally to every exercise.

Find the movements that work best for yours.

Compare

Know what deserves a place in your workout.

Glute response

Hip thrust
92
Bulgarian split squat
77
RDL
63
Squat
51

Over time

Watch strength take shape.

Individual workouts tell you how your muscles respond. Weeks of training reveal how your body is changing.

Growth estimates are based on longitudinal wearable measurements and training data.

Glutes 8 week trend

+0.0%

Estimated growth trend

Week 1Week 8

Your data

Your body becomes the dashboard.

Athlete performing a dumbbell row wearing the Form band, with selectable muscle groups marked on her body

Glutes

+4.8%

Estimated 8-week trend

Training volume
14 sets / wk
Strongest exercise
Hip thrust
Muscle response
92

The band

Almost nothing to wear.

A soft sensing textile and removable sensor disappear into your workout.

Form band in Blush — soft elastic band with integrated sensor pod

Stretch sensing textile

Measures changes in muscle circumference during contraction.

Removable pod

Bluetooth, battery and processing in one tiny module.

Motion sensor

Understands reps, tempo and movement.

Blush

You thought squats were building your glutes.

Your body disagrees.

Hip thrust

0

Squat

0

Train your body. Learn your body. Build your body.

For the first time, see the relationship between what you do and how your body changes.

Build with intention.

Be first to train with Form.