Form · for strength training

See what’s building you.

worn

On the muscle you’re training

A soft band that senses every contraction.

How it responds, rep by rep

Muscle response and time under tension, live.

Strength, taking shape

Weeks of training reveal how your body is changing.

the app

form Live session

Glutes

Sample session · 4 exercises

Time under tension0 s avg

Reps and response, per exercise

See which movements your muscles actually answer to.

the app

Glutes8 weeks

+0.0%

Estimated strength increase

Week 1Week 8

Strength, measured over time

Weeks of sessions add up to a trend you can actually see.

Inside the band

Stretch-sensing textileMeasures how the muscle expands and contracts through every rep.
Motion sensorCounts reps and reads tempo and time under tension.
Removable podBluetooth, battery and processing in one tiny module.
What you getA muscle response score per exercise, and how it trends over weeks.

Form band · Blush

Stretch-sensing textile. Removable pod.

Inside the band

Stretch-sensing textileMeasures how the muscle expands and contracts through every rep.
Motion sensorCounts reps and reads tempo and time under tension.
Removable podBluetooth, battery and processing in one tiny module.
What you getA muscle response score per exercise, and how it trends over weeks.

Form band · Onyx

Bluetooth, battery and motion sensing in one tiny module.