Make every set count
The JUICEBOX sensor ensures you are training with enough intensity. It delivers real-time auditory feedback, letting you know when you’re near muscular failure. Push to failure or stop a few reps shy—it’s your call. Stay accountable and have sets that push you to your goals!
Your own personal coach that ensures you are training with intensity every set
Auditory notifications mid set
Know exactly when to stop your set
Know when to end your set with our real-time reps-to-failure notification system. Simply attach the JUICEBOX sensor to the weight and start lifting. Three reps before we estimate you’ll reach failure, you’ll receive an auditory notification. Push to failure or stop a few reps shy—it’s your choice. No more guessing your RPE/RIR. No more mental blocks.
Noninvasive to your workout style
Great workout done efficiently and timely
Get a great lift and save time with the JUICEBOX sensor. Connect it to your phone—no need to input exercises just press start workout. It tracks your sets automatically, manages your rest timer, and alerts you when it’s time to lift again. Plus, it tracks your weekly working sets to help you hit your goals!
Failure proximity notification
Automatic rest timing
Get a great workout done efficiently. Our timer starts and stops automatically when you begin and end your set.
Rep speed graph
Know if your eccentrics are slow and consistent to ensure proper progression and time under tension.
Weekly working set tracker
Ensure you hit enough weekly working sets. Define a working set by proximity to failure, and the system tracks it for you.
Easy to set up and use
Connect to your phone
Simply hold the button on the JUICEBOX sensor till it turns on, and pair it with your phone via Bluetooth.
Attach to the weight
With the embedded magnets, the JUICEBOX sensor can stick to barbells, dumbbells, machines, cable stacks, and more. In addition, thanks to its pen-like clip, it can attach to your person for bodyweight exercises.
Start lifting
Now just press the start workout button and start lifting. The JUICEBOX sensor needs no other input by you!
Frequently Asked Questions
Using accelerometers, we track the device’s movement with the weight to calculate mid-set decreases in rep velocity, which correlate with proximity to failure. The Automatic rest timer works by tracking the position of the device so it knows when you start and stop a set.
As we’re still developing the device, the exact pricing hasn’t been finalized. However, our goal is to make it affordable so as many people as possible can benefit from the insights it provides.
Research shows that stopping a few reps short of failure achieves similar muscle growth with less fatigue, allowing for more volume and greater gains. With JUICEBOX, you can accurately stop where you want without guessing. Most people, regardless of experience, struggle to gauge their proximity to failure.
With the embedded magnets, the JUICEBOX sensor can stick to barbells, dumbbells, machines, cable stacks, and more. In addition, thanks to its pen-like clip, it can attach to your person for bodyweight exercises.
