It checks today's price at every store, compares the alternatives and answers in about a minute.
The Polar H9 is a chest-strap heart rate sensor that broadcasts your pulse over Bluetooth, ANT+ and 5 kHz analog to gym equipment, bike computers and phones. It is the entry point in Polar's strap line: the same soft textile strap and snap-on transmitter as the H10, but without the H10's built-in memory and running dynamics. Reviewers rate its accuracy against ECG well and call it a dependable everyday trainer. It suits people who want a reliable strap for apps and machines rather than advanced metrics.
In stock
In stock
In stockSold by giuse-0804
Availability unknownSold by valeriasav (99.7% positive, 387 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Availability unknownSold by michaelscoolfinds (99.9% positive, 2,400 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Availability unknown
As an Amazon Associate, Deal.ai earns from qualifying purchases.
Also available at
Store links may earn us a commission. Some prices via Klarna.
Owners rate the H9 highly for accuracy and reliability, and many use it for years across phones, watches and gym machines. Complaints center on the lack of memory and on comfort for people who dislike chest straps.
The Polar H9 is a chest strap heart rate sensor for training. It is a wearable, unisex sensor intended for cardio fitness goals and for use in bicycling.
It connects wirelessly over Bluetooth, ANT+ and 5 kHz. Battery life is 400 hours. It works with desktops, laptops, smartphones and tablets.
