@Durkin would whoop consider an option to connect a chest strap for activities that an optical sensor is just not ideal in?
4 Likes
5 or 6 rides and satisfactory HR readings, today it spiked again throwing off my strain. Whoop wrist based is not accurate enough, please allow me to connect to my Heartrate Chest Strap or get HR from Apple health during activities 
1 Like
I will try my new whoop 5 band for my ride today and see how it‘s comparable with my Carmin setup I regular use.
*** Update *** Paying really close attention to my device placement while riding, I noticed that with hands on the hoods or on the drops, a “valley” develops below the sensor as the mussels and tendons in the forearm are engaged. Reaching over with my opposite hand, I found the devise to be ever so slightly looser over this area, which I figured might be more of a challenge for the optical sensor.
I experimented with tightening and VERY SLIGHT placement adjustment (moved it up my arm a bit so maybe a few millimeters of the tan line is now exposed, so not much). Now with the strap tension higher than what I’ve been I’m accustomed to, but absolutely not cutting off circulation or discomfort, this has SIGNIFICANTLY increased the HR accuracy to the point where I’m no longer wearing my Polar HR strap on every training/joy ride anymore. For routine Zzzzzzz training and joy rides it’s more than good enough.
In any event doing this coupled with the latest BT firmware updates (remember after doing a firmware update, delete your WHOOP on whatever device you have it paired too and re-pair it for the new firmware to play as it should in the sandbox) and using a slightly higher tension on the strap, the device is NOW starting to meet expectations 
With the 4.0, the Whoop was inaccurate when drop-bar cycling, so I bought the bicep band and it was much better. I didn’t mind it because I didn’t constant soak my “everyday” wrist band with sweat. However, the 5.0 bicep band has been out of stock since my 5.0 arrived, which is annoying. The 5.0 clearly has the same problem as the 4.0 with cycling. Given the number of cycling influencers sporting the Whoop, you’d think it would be more of a priority to fix cycling HR. Or bicep bands should come standard.
1 Like
Definitely a concern. I find scooting my wrist band back an inch from my regular location gets the readings a lot closer to my Polar strap. Not the best solution as the wrist band likes to slide back near the old spot after a few miles of road vibrations and heavy sweating.
Was thinking during this mornings ride (That’s how bad this is) that a happy medium would be to pull in HR data from Strava since the two companies integrate in other areas. May be the quickest way to satisfy quite a few people until a more permanent solution is found.
1 Like
I am also a road cyclist and I was having issues with Whoop accuracy. Mostly Whoop was low balling my HR during rides (sometimes by a lot). I got the bicep’s whoop strap, and the problem was entirely resolved. I think that there was something about the wrist movement with handle bars + vibrations + the cold temperatures and (freezing winds near the wrist) where I live as the winter comes in. Hope this helps!
1 Like
Yes I am aware that Whoop is better on the Bicep but it’s crap for other area’s like ECG/EKG and BP insights. I will accept a slightly off HR on wrist but not 20/30% higher. The Whoop MG is designed for the wrist and it should work with reasonable accuracy on the wrist. I do not want to have to move from Wrist to Bicep for cycling and back to Wrist for the remainder of the day. I want Whoop to work on the wrist where it is designed to be 
That’s totally fair! I actually do move it to biceps every time I cycle, and back to wrist right after (basically everyday lol). But it is nicer to just keep it on wrist all the time. Thanks for the discussion post (it was nice to know I was not the only one who noticed this).
1 Like