profile

Athletica AI Coach and Training Science

Apple Watch now works with Athletica (via Watchletic 3.0)

Published 10 months ago • 1 min read

Apple Watch, Meet Athletica!

Starting today, you can use your Apple Watch with Watchletic 3.0 and have your workouts, sleep, resting heart rate, and HRV flow into Athletica - powering your readiness and adaptive planning.

What you get

  • Frictionless data in: Apple Watch → Watchletic → Athletica
  • Better daily decisions: Your recovery metrics help shape tomorrow's plan.
  • On-watch training: Watchletic gives you structured intervals and cues on Apple Watch.

On-time setup (2-3 minutes)

  1. Install/Update Watchletic on iPhone + Apple Watch.
  2. In the Watchletic iPhone app: Integrations → Athletica → Connect and sign in.
  3. When prompted, allow Apple Health permissions for: Heart Rate, Resting Heart Rate, and Sleep.
  4. Start your next session with Watchletic on Apple Watch. We'll take it from there.

Get Watchletic on the App Store.

FAQ:

Do I need to change anything in Athletica?

No. If you use Watchletic, your data will arrive automatically.

Can I run structured intervals on my Apple Watch?

Yes - use Watchletic's workout builder/import, then execute on-watch with cues.

Minimum requirements?

iPhone on iOS 16+ and Apple Watch on watchOS 9+.

If you run into any issues, double-check Health permissions for Watchletic on your iPhone (Health app → Profile → Apps → Watchletic) and on your Apple Watch (Settings → Health → Apps). Our team can help if you get stuck.

Train smart,

Team Athletica

Download and review the Athletica mobile app

Train Smarter, Not Harder

Athletica AI Coach and Training Science

Your AI Coach for Smarter Endurance Training

Smarter training starts here. Athletica’s newsletters deliver science-backed insights, expert tips, and AI-powered training updates for endurance athletes of all levels. Catch up on past editions and subscribe to stay ahead in your training journey.

Read more from Athletica AI Coach and Training Science

Dear Reader, I remember learning about energy systems in school. Professor Paul Gastin's diagram was the gold standard: a clean picture of how much each system contributed depending on effort duration. You've probably seen similar. ATP-PCr, Glycolysis/lactic, Aerobic; each with its lane, each with its moment. Gastin (2001)'s classic energy system interaction model for maximal exercise. Then I watched a film that added the piece Gastin hadn't for me. That these systems are never one or the...

20 days ago • 2 min read

Hello Reader, Sebastian Sawe ran 1:59:30 in London last weekend. Three men finished under the previous world record for the marathon. Coaches and media publicly credited 100–120 g/hr of carbohydrate. The running internet promptly lost its mind. So on the Athlete’s Compass Podcast this week, Paul Warloski and I took the question head-on: should you be eating like Sawe? Short answer: no. But the longer answer is more interesting. And it points somewhere the sports nutrition field hasn’t quite...

about 1 month ago • 3 min read

Welcome to Inside Athletica April edition. The Workout Wizard is now live for everyone - including inside the mobile app. Smarter swaps, better context, and more flexibility when life doesn’t go to plan. We’re also actively working on upgrading the AI Coach. The feedback you’ve been sending has been incredibly valuable - keep it coming. With summer around the corner, many of you are heading into marathon blocks. This is where consistency, smart adjustments, and staying healthy really start to...

about 2 months ago • 2 min read