Replacement Silicone Watch Strap Loop for Polar A370

Strap keeper to suit the Polar A370

With continuous heart rate tracking, the Polar A370 is meant to stay on the wrist, and a strap that comes undone defeats the purpose. If the keeper that holds the strap end has split or disappeared, this silicone replacement, listed for the A370, gets the band back in shape.

Choosing by model, not by width

Traditional watch keepers are sold by strap width because classic straps are flat and uniform. Tracker bands like the A370 are moulded to their own profile, so the dependable approach is to buy the loop made for the device. That way it hugs the band instead of rotating or sliding.

The silicone is flexible, so it goes on by hand in a few seconds, and it is comfortable against the skin day and night. Sweat from a workout, a shower or a swim leave it unaffected. Cleaning means a rinse in warm water with a drop of soap, then a pat dry.

A keeper can disappear when you remove the band to charge or clean it, so ordering a spare is also common among A370 owners.

Polar A370 loop questions

Why does my A370 strap end keep popping out? Usually because the keeper has stretched or split. A new loop holds it flat again.

Does the loop interfere with the heart rate sensor? No, it sits on the strap, away from the sensor underneath the device.