Calibrex

11/23/2025

The first wearable built for lifters.

Limited drop of 207 Calibrex units—hand built right here in midtown nyc.

11/17/2025

Most people walk into the gym guessing.

You won’t.

Calibrex gives you a plan going in, real-time coaching while you lift, and the data to show exactly how you’re progressing over time.

Lift with confidence.
Train with intention.
Grow on purpose.

11/16/2025

10/26/2025

Reimagining personal training with the first wearable designed for lifting.

Live, in-ear coaching. No typing after your set. Calibrex tracks every rep in real time, knows how hard each set is, and gives instant audio and on-screen feedback.

Because Calibrex knows what you did (and how difficult it was), it’s the first fitness app that can truly personalize your training—while you’re lifting, not after.

App-side, a clean analytics page sorts reps, load, velocity, power, ROM, TUT, rest, and set difficulty, tying it to your goals with projected gains per exercise. Keep showing up to realize them. 💪

With over 25M reps tracked, top paid users include Olympians, professional athletes, tech CEOs, and top universities.

Wanted: Elite engineer building at the edge of hardware + AI for lifting. Bonus if you’ve shipped with Expo. DM us or tag a killer below.

05/13/2025

Introducing Vibe Lifting 😎🏋️

A tiny magnetic AI wearable device designed specifically for working out.

It automatically tracks and keeps track of all your workout data—like how many reps you do, how long you rest, how fast you move, and how well you maintain your form.

Your coach will give you real-time audio tips, progress updates, and helpful stats so you can see how you’re improving every step of the way.

There are plenty of fitness trackers out there, but none of them track your lifts. Calibrex 3 is the first AI-enabled workout wearable that tracks every rep, just like a trainer would.

We’re all about reps, not steps.

11/15/2024

Understand your body during a workout 🏋️

When you work out, Calibrex workout zones will help you see how long you spend at each percentage of your One Rep Max, per muscle group!

Learn more about lifting zones on our website.