new Hammerhead HRM
I used to get very excited about heart rate monitors. Now…less so.
That said, it’s worth a quick note to point out that Hammerhead quietly launched their new heart rate monitor a couple of days ago. It seems very reasonably priced at £54 and comes with a couple of BLE connections and the usual ANT+ too. The extra BLE connection is useful for Zwift.
The noteworthy feature is a fabric sensing pad in which strands of silver are woven with the material. This is claimed to be more comfortable and to work on low impedance skin and, as the strap supports the transmission of RR beats (HRV for want of a better phrase) this should be an accurate strap.
Finally, we come to a creditable 900 hours of battery life eked from a standard coin-cell CR2032 battery.
Hammerhead HRM Specs
- Adjustable, washable, elastic strap
- Strap length: 28”-48” or 711-1219mm
- Weight: 15 grams (pod) 28 grams (strap)
- Connection: 2x Bluetooth channels and ANT+
- R-R Intervals
- 30m (90f) Water-proof
- Electrode material: Fabric with woven silver
- Strap connector: Side
- Battery life: Approx. 900+ hours
- Battery type: User-replaceable CR2032 3 volts (included)
The strap is designed for cycling and so we should expect any fancy features to materialise in the months to come. There’s no point in retrieving cached HR data for cycling and the strap isn’t really that suitable for swimming at WR30. Maybe it could double as a cadence sensor? A feature that Wahoo can produce from some of their Tickr HR Straps.
Why bother? Well, it’s a convenience-thing for some people to buy a bundle and these straps must only cost a few dollars to make, so it’s a high margin add-on too. Instead of a bundle, Hammerhead is initially offering the HRM at half price with a new Karoo 2, which seems like a good deal.