The Apple Watch app built for serious lifters.
Arvo for Apple Watch = native SwiftUI strength training app with on-wrist set logging, Live Activity on Dynamic Island, HealthKit integration, AI-driven rest timers, and exercise demos on wrist. Series 6+, watchOS 10+.
Other strength apps treat your Apple Watch like a glorified notification.
You raise your wrist between sets expecting to log. Instead: a timer screen that does nothing, no rep input, no RIR, and the rest timer lives on the iPhone. Your premium watch becomes a buzz-only device.
No real on-wrist set logger
Hevy and Strong have Apple Watch apps, but logging is crippled: often read-only or one-tap "done" without reps, weight, RPE, or RIR. You still pull out the phone.
No Live Activity or Dynamic Island
Gym apps don't pin your current set to the lock screen or Dynamic Island. You lock the phone and lose the session state. A 2024 iPhone feature, still untouched by strength apps.
Rest timers are phone-only
The whole point of the watch is to run timers. Most apps trigger the rest timer on the iPhone and forget the watch exists. You miss the haptic tap and push past your rest window.
HealthKit is shallow or ignored
Some apps write a workout stub to HealthKit, none with proper heart rate per set and zone distribution. Your Apple Health history shows "Other Workout" blobs, not real strength data.
Everything you need, on your wrist.
SwiftUI, HealthKit, WatchConnectivity, ActivityKit. Every core workout action on the watch, with iOS 17 and watchOS 10 features wired in, not faked.
On-wrist set logger
Log reps, weight, RPE, and RIR directly from the watch with Digital Crown scrub and haptic feedback. WatchConnectivity syncs to the iPhone session instantly. Ten exercise types, multiple input styles.
Live Activity + Dynamic Island
Pin the current exercise, set, and rest countdown to the lock screen and Dynamic Island of iPhone 14 Pro and later. ActivityKit keeps it alive across app switches. Tap to jump back into the logger.
HR live + AI rest timer
Continuous heart rate during the workout. Rest timer starts automatically when you confirm a set and buzzes at zero. Length auto-tunes based on RPE, rep count, and fatigue insights from your AI coach.
Quick RPE/RIR input
One-tap RPE/RIR input after each set with crown support. The AI coach uses the readings set-by-set to adjust weight suggestions. No more "I'll log it later" that never happens.
HealthKit sync
Completed workouts land in HealthKit as HKWorkout sessions with duration, active energy, and heart rate samples. Fitness rings close, Apple Health history shows real strength data, third-party apps read it automatically.
Exercise demos on wrist
Forgot what a Pendlay row looks like? Tap the exercise on the watch, see a short demo loop and key cues. No phone pickup mid-rack. Works offline once the session is loaded.
Full iPhone + Apple Watch parity. Every feature, both screens.
Arvo on Apple Watch isn't a cut-down port. Same protocol, same UX surface, same features as the iPhone app—with watchOS-native touches on top.
| Feature | iPhone | Apple Watch |
|---|---|---|
| Set log with reps, weight, RPE, RIR | ||
| Live heart rate during workout | ||
| Rest timer with haptic cue | ||
| Dynamic Island current-set pin | ||
| Live Activity on lock screen | ||
| HealthKit workout session write | ||
| Exercise demo previews | ||
| Standalone mode (phone in locker) |
How Arvo compares to Hevy, Strong, Fitbod, and JEFIT on Apple Watch.
Gap in the market. As of 2026, Arvo is among the few native watchOS strength training apps shipping Live Activity, Dynamic Island, and AI-driven rest timers end-to-end.
| App | HealthKit + Standalone | Live Activity + Dynamic Island + Rest Timer AI | Notes |
|---|---|---|---|
| Arvo | Full | Full | Native SwiftUI, ActivityKit, full HealthKit integration |
| Hevy | Full | None | Apple Watch app, no Live Activity/Dynamic Island |
| Strong | Limited | None | Apple Watch app, limited logging, no Dynamic Island |
| Fitbod | Full | None | Apple Watch app, no Live Activity, basic timers |
| JEFIT | Limited | None | Apple Watch app, very limited, phone-centric |
Install to training in 4 steps
Install Arvo on iPhone
Download Arvo from the App Store on your iPhone. Magic link login, free plan included.
Pair Apple Watch
The ArvoWatch target installs automatically on your paired Apple Watch. Series 6, SE 2, Series 7/8/9/10, and Ultra/Ultra 2 all supported on watchOS 10+.
Start the workout
Today's session lands on the watch as soon as you open it. HealthKit workout session begins, Live Activity appears on the lock screen and Dynamic Island.
Log from the wrist
Tap reps, weight, RPE, RIR. Rest timer starts automatically. Phone can stay in the locker—WatchConnectivity + ActivityKit keep everything synced.
Frequently Asked Questions
Is there an Apple Watch app for strength training?
Yes. Arvo ships a native watchOS app built in SwiftUI for serious lifters. On-wrist set logger, Live Activity on the Dynamic Island, HealthKit workout sessions, live heart rate, and AI-driven rest timers. Full parity with the iPhone app, not a watered-down companion.
Does Arvo work on Apple Watch Series 6?
Yes. Arvo for Apple Watch supports Series 6 and later, including SE (2nd gen), Series 7/8/9/10 and Ultra/Ultra 2. Install Arvo on your iPhone, the ArvoWatch target installs on the paired watch, and your workout syncs via WatchConnectivity in real time.
What watchOS version is required?
Arvo for Apple Watch targets watchOS 10 and later on iOS 17+. That means Series 6, SE 2, Series 7/8/9/10, and Ultra/Ultra 2 are all supported. Older watchOS versions are not targeted because the Live Activity and Dynamic Island APIs we rely on require iOS 17 and watchOS 10.
Can I track workouts without my iPhone?
The watch pairs with the iPhone to load your program and sync logs, but during a session the phone can stay in your locker. Sets, heart rate, and rest timers run on-watch and queue via WatchConnectivity. When the phone comes back in range, everything flushes to the cloud.
Does Arvo sync with HealthKit?
Yes. Completed workouts are written to HealthKit as HKWorkout sessions with duration, active energy, and heart rate samples. This means the Fitness app rings, third-party health apps, and Apple Health history all reflect your lifting sessions automatically.
Does Arvo show my workout on the Dynamic Island?
Yes. A Live Activity pins the current exercise, set number, and rest timer on the lock screen and Dynamic Island of iPhone 14 Pro and later. Tap to return to the logger. No other strength app we know of ships this on iPhone.
Can I log sets without looking at my phone?
Yes. The watchOS set logger lets you tap reps, weight, RPE, and RIR directly from your wrist with crown and haptic feedback. The rest timer starts automatically when you confirm the set. The phone can stay in your bag.
Is the Apple Watch app free?
Yes. Arvo for Apple Watch is included with the free plan—no separate purchase. The free tier covers core tracking, set logging, heart rate, and rest timers. Advanced AI coaching and unlimited history live in Arvo Pro.
