BigBeat

BigBeat shows your heart rate in the largest numbers possible on your Apple Watch screen. Designed for people who want to see their pulse clearly during exercise — no squinting, no confusion.

Five color-coded heart rate zones help you stay in the right intensity range. Green means you're relaxed. Blue is light effort. Yellow is moderate. Orange is high. Red means maximum effort. You always know where you are at a glance.

If your heart rate exceeds the safe limit, BigBeat triggers a full-screen alarm with flashing red screen, loud klaxon sound, and strong vibration. This is not a subtle notification — it demands your attention.

Features:

• Extra-large heart rate display with automatic color zones
• Full-screen STOP alarm when heart rate is too high
• Customizable heart rate zones based on your age
• Training timer with flip animation
• Alarm sound and vibration controls
• Saves workouts to Apple Health
• Works standalone on Apple Watch — no phone needed
• 20 languages supported

BigBeat calculates your zones automatically using the AHA formula (220 minus your age). You can customize each zone manually if your doctor recommends different limits.

BigBeat is not a medical device. Always consult your doctor before setting heart rate limits.