Polar H9 vs OH1 - Where are the differences?
Where are the differences?
Let's take the two heart rate sensors H9* and OH1* of the brand Polar and look at the differences.
Heart rate measurement
Polar H9 works with a EKG measurement. For the Polar OH1 rely on the Optical technology. In general the measurement via ECG is considered more accurate. Thus the Polar H9* is equipped with the more accurate technology.
With the Polar H9 the measurement is taken across the chest. This is a chest belt. The Polar OH1 is worn on the arm.
Connection options
Bluetooth has become a very popular option for connecting heart rate sensors and pulse belts. Both the Polar H9 and the Polar OH1 offer this. The connection via Bluetooth is mostly used for cell phones or fitness watches. Some new devices in fitness studios also offer Bluetooth as an option.
The standard ANT+ less known. However, it is often used in the field of sports. Some finte watches, especially from Garmin and Polar, support the form of the connection. In comparison between the Polar H9 and the Polar OH1 you get ANT+ with both.
The Polar H9 offers you 5kHz in contrast to the Polar OH1. The connection type is also called a gymlink. The 5kHz is, as Gymlink says, mostly used for equipment in the gym. These include, for example, treadmills or bicycle ergometers.
Waterproof
Both heart rate sensors from the comparison are waterproof. Up to 30 m both devices can be used under water
Belt
Most heart rate sensors can be adjusted in size. This is especially relevant for chest straps. The minimum belt length of the Polar H9 is 54,0 cm. The maximum length for the Polar H9 is 95,0 cm.
