Quick Comparison
| Feature | Apple Watch + YoBPM | Chest Strap HRM |
|---|---|---|
| Extra hardware needed | No, uses watch you already own | Yes, $50–$100+ strap |
| Setup time | Under 1 minute, no extra device | Buy, wet electrodes, pair, maintain |
| Comfort during long rides | High, nothing on your chest | Moderate, strap can chafe |
| Accuracy (steady state) | Excellent | Excellent |
| Accuracy (sprint intervals) | Excellent for real-world Zwift training | Slightly faster in lab conditions |
| Works with Zwift | Yes, pair in seconds with YoBPM | Yes, after buying a separate strap |
| Battery / maintenance | Recharge watch nightly, no extra parts | Replace CR2032, wet electrodes, wash strap |
| Multi-app compatibility | Zwift, TrainerRoad, Rouvy, myWhoosh, and more | Works, after buying a separate strap |
| Cost | $9.99 one-time (YoBPM lifetime) | $50–$100+ for quality strap |
| Always with you | On your wrist every day | Easy to forget or leave at home |
Why Apple Watch + YoBPM Wins
- No extra device to buy, charge, wet, or maintain
- Comfortable, nothing strapped to your chest during long rides
- Accurate and reliable for the vast majority of Zwift training
- One-time $9.99 purchase, no subscription, no $50–$100 strap
- Works with Zwift, TrainerRoad, Rouvy, myWhoosh, Bitgym, and more
- Your watch is already on your wrist. YoBPM unlocks it in under a minute
- Full smartwatch: daily health, notifications, and workouts in one device
The Hidden Costs of Chest Straps
Many riders buy a chest strap hoping for a better Zwift experience, then stop using it because of the hassle. Before you add another device to your setup, consider what a traditional strap actually costs you:
- $50–$100+ upfront for a quality strap, on top of gear you already own
- Skin irritation and chafing on long indoor rides
- Wetting electrodes and adjusting the strap before every session
- CR2032 battery replacements and strap washing
- Another device to remember, pack, and keep charged
When YoBPM Is the Right Choice
If you already own an Apple Watch, YoBPM is the smartest path to heart rate on Zwift. It is ideal for endurance rides, group rides, recovery sessions, structured training, and everyday riding where comfort and convenience matter.
Many riders who tried chest straps and abandoned them because of discomfort, forgotten batteries, or straps left at home find YoBPM is the solution that actually sticks. As one App Store reviewer put it: "Worth every penny" after struggling to connect Apple Watch to Zwift through other methods.
Keep your iPhone within Bluetooth range of your watch and Zwift device during rides. For most riders, that is the only practical requirement, and it is the same phone you already bring to your trainer anyway.
Our recommendation
For the vast majority of Zwift riders, Apple Watch + YoBPM is the better choice: accurate enough for real training, far more comfortable, and a fraction of the cost of buying and maintaining a chest strap. You already own the hardware. YoBPM unlocks it for Zwift and every other cycling app you use.
New to setup? Read our step-by-step Apple Watch Zwift guide.
Try Apple Watch heart rate on Zwift
One-time purchase. No subscription. Works in under a minute.
Download YoBPM