Zenith: Recovery & Strain

Referrals are here: share your code, your friend gets 30 days of Pro and you earn rewards. Plus Garmin strength workouts now import exercises with sets, reps and strain.

Your Garmin collects the data. Zenith makes it matter                Connect your Garmin watch and get recovery scores, sleep analytics, strain tracking, workout tools, and a community of athletes to train alongside. No new hardware required. Free to download.

• Recovery that actually guides you Zenith uses machine learning models trained on your HRV, sleep quality, and training load to predict your recovery every morning. From there, you get a recommended strain range for the day so you know whether to push hard or take it easy.

• One score for all your training Every workout and daily activity rolls into a single daily strain score. For cardio, we analyze your heart rate zones and calculate aerobic strain. For lifting, we calculate muscular strain across 25 individual muscle groups using real population-level strength data from a library of 400+ exercises. Your strain is calibrated to your actual strength level, not just volume or tonnage.

• Sleep debt, not just sleep scores We go beyond a single sleep score. You get stage-by-stage analysis, efficiency metrics, consistency scoring, and sleep performance. Zenith tracks your sleep debt over time and tells you exactly how much sleep you need to perform and feel your best.

• Beyond reps, real effort The workout builder lets you create routines, log sets, and use rest timers during your session. We support weighted exercises, bodyweight movements, time-based holds, and assisted bodyweight variations. After your workout, we compute your personal records and progress automatically from your full training history.

• Every activity, analyzed Running and cycling activities get pace and power zone breakdowns, split analysis, and power curves. Walking, hiking, skiing, and other cardio activities show elevation, speed, and heart rate over time if measured. The Trends tab gives you 7-day, 30-day, and 6-month views across strain, recovery, sleep, and strength. There's a muscle activation heat-map showing which groups you've been hitting and which you've been neglecting.

• Compete with your crew Follow friends, check leaderboards, and see how your training stacks up. And when you hit a PR, a big ride, or a great night of sleep, you can now share your charts straight out of the app and ready for Instagram, messages, or anywhere else you want to post them. Training is personal, but it doesn't have to feel lonely.

• Your complete wellness hub All your health and fitness data in one place. Sleep, strain, recovery, HRV, and activity metrics flow together to give you the complete picture. Zenith needs about a week of data to establish your personal baselines, then calculates your metrics from your own history.

• Works with your Garmin Any Garmin watch that syncs to Garmin Connect works with Zenith including: Forerunner, Fenix, Epix, Venu, Instinct, vivoactive, and more. Keep using Garmin Connect exactly as you do now. Zenith reads your data automatically in the background.

Pricing Free to use with core features (recovery, strain, sleep, activities). 7-day free trial of Pro included. After the trial, Premium is $59.99/year or $9.99/month, unlocking your full history: unlimited past days, extended trends, all-time records, and full muscle heatmap history.

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