Breathe Stronger,
Perform Longer
Oxythlete measures your real-time oxygen utilization and breathing efficiency during intense exercise. Our AI detects performance avalanches—sudden drops in efficiency—before you feel them, keeping you strong when it matters most.
Your Second Wind, On Command
A runner cresting a brutal hill feels a gentle vibration: "Your oxygen efficiency dropped 12%. Adjust: inhale for 3 counts, exhale for 2." They shift their breath and instantly feel the surge—the hill feels easier, heart rate stabilizes, and they finish strong instead of bonking.
$249 Device
+$19.99/month premium coaching & analytics