Swimming Heart-Rate Armband

Dive in—and still hear every beat.

This summer belongs to the blue lane. Chileaf straps “lab-grade heart-rate” to your arm: our new Swimming Heart-Rate Armband turns every stroke into hard data.

· 30 m Water-Proof  

One-piece sealed body, 72 h salt-spray tested. Ocean, chlorinated pool, free-style, butterfly, tri-switch—no problem.

· PPG + Kelee Swim Algorithm  

Locks onto micro-vessels at arm or temple, filters water-surface noise. Delay < 1 s, accuracy ± 1 bpm.

· Dual-Mode Instant Pair  

Bluetooth 5.0 & ANT+ broadcast together—phone app or gym wall display, connect in a heartbeat.

48 h heart-rate + 7-day offline storage for steps & calories

Left the phone in the locker? The band remembers. One-tap sync when you’re back on land—every lap, zone and calorie auto-plotted.

· Feather-Light Fit  

12 g total, lighter than an energy gel. Skin-friendly strap is machine-washable, stays put after endless laps—no slip, no mark.

· Smart Alert  

Vibrates the moment HR hits 165 bpm—stop you from over-cooking or under-loading.

· EAP Team Training System  

Coach’s dashboard shows live HR for the whole squad. The pool-side iPad becomes your tactics board—adjust intensity on the fly.

Real-time monitoring of student HR, training load, calories, VO₂ Max, breathing rate, stress—everything at a glance.

— Quick Start —  

1. Before diving, slide the sensor onto goggle strap, press the LED against your temple.

2. Open the app, select “Swim Mode”.

3. After training, long-press 3 s—data auto-uploads to the cloud.

Strap on the Chilef Swimming Heart-Rate Armband—let your heartbeat become your personal pacer.