About X4
4 blocks.
40 minutes.
learn About X4
Classic
Classic
Combines lifting, sprint work, endurance, and core/accessory movements. Members can expect this to be a full-body workout
Strength
Strength
Slows things down to focus on resistance training through heavy weights. These classes are meant to challenge you and build strength.
Burn
Burn
Starts and ends with intervals on all machines with high effort, lightweights, and bodyweight movements. Expect to test your endurance limits, burn the most calories, and leave VERY sweaty.
Flex
Flex
Upper body and core-focused, designed to push you through higher reps and burnout sets. If you’re looking to build muscle definition, this is the class for you.
Sprint
Sprint
Fast-paced and focused on explosive movements. These classes are designed to race against the clock through a series of high-effort sprint-style blocks
Gauntlet
Gauntlet
The most hype class that occurs once a month. Members can expect to test themselves in shorter time frames that end with a max effort sprint.
The perfect fitness formula.
X4 bridges the gap between HIIT and functional fitness for a more well-rounded workout.
try a free class
why X4?
A holistic fitness approach in a supportive group atmosphere
X4 was intentionally created to provide a holistic fitness option in a supportive group atmosphere. Unlike many group fitness gyms, X4 gives a consistent variety of anaerobic and aerobic training so members get a more well-rounded workout and never get bored.
Our story
Created for anyone at any fitness level.
X⁴ started in Homewood, AL as a HIIT class that was offered at a gym called Nexus Fitness when owner Chris Wade realized there was no comprehensive fitness option for all fitness levels. After 3 years of continued growth at Nexus, X4 became its own brand and launched its first independent studio in Mountain Brook, AL.
Bring the perfect fitness formula to your city.
learn about franchising
