X3 Force for iPhone

Product snapshot

X3 Force is an electronic force-tracking bar from Jaquish Biomedical designed for iPhone users. When linked with its companion smartphone app, the system captures live workout data and displays session details in real time. It brings together the convenience of smart-home gym tools with the X3 variable-resistance training method to help users monitor progress more effectively.

How the system operates

The X3 Force bar pairs with your iPhone app to record force output throughout each movement. Data streams to the app during your set, letting you review performance immediately after each exercise. The combination of hardware and software is built to make variable-resistance training easier to quantify and analyze.

Session scoring and progression

Every workout is measured against your previous performance using a composite score called the Total Force. That score is computed from multiple inputs captured during a set and is intended to reflect both intensity and execution quality. By always trying to surpass your last Total Force value, the system encourages progressive overload and consistent stimulus for muscle growth.

Key inputs used to create the Total Force score:

• Rep count recorded across the set
• Duration a muscle spends under changing loads (time under variable tension)
• Instantaneous force readings captured throughout each rep
• The resulting composite Total Force rating, which summarizes session difficulty and quality

Suggested alternative

If you’re looking for a free coaching option, consider Perfit — Men’s Fitness Coach. It’s a mobile coaching app that provides workout guidance and tracking without the requirement of specialized hardware.