I don’t have the updated devices but I’m confident that my calories are low by about 200, as I typically ear above them each day and still don’t gain weight
Same issue for me here. My average calorie output per day since moving from whoop 4 to 5 has gone down by almost 500 calories per day, doing almost exactly the same routine. Ive been using this app now for 2 full years without missing a day and now everything seems to be tracking much lower. Intensity lower, calories lower, effort lower. HAS to be from this update because nothing else has changed for me.
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Agree! Especially lower intensities like when Im using my walking pad. I’ll walk 3 miles in one hour and it’ll say I burned 50 calories whereas my Apple Watch or Peloton will say it’s like 250. If I do a 20 minute run at a 9 min mile pace, then the 3 trackers are much closer, saying around 200 for whoop and 240 for Apple and Peloton.
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So frustrating! So either the new device is wildly inaccurate, or the last one was.
Glad we pay so much for it.
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I walked/hiked 25km yesterday at about 4.3-4.5km per hour speed…and my whoop tells me I burned about 1300 calories in total for the day. It didn’t pick up the activity at all.
Yes. Calories per day is way off! Like really way off. For some time I tracked macros and calories with a third party app to see if I match my daily burned calories Whoop shows me. The result was: It’s highly inaccurate. I lost weight. I do a high training volume each week and can not afford to lose weight. So yes I agree with you: Whoop’s calories are 
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Completely agree. I get the same canned response from Whoop when I asked them about it.
With my 4.0 I burned more calories during a time where I was recovering from shoulder surgery and mostly inactive. Now that I am running 2x a week and lifting daily, I am burning at least 100 calories less a day. It’s non sensical.
I use my fitness trackers to manage my calorie burn and intake. If it doesn’t improve I will not renew my membership in January.
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I’ve had my Whoop for 5 days and was hoping the calorie burn would calibrate. It hasn’t. It’s averaging ~1,500 kcal/day for me.
I consume ~2,600 kcal/day (logged in MyFitnessPal). If Whoop were right, that’s a surplus of ~1,100 kcal/day → ~7,700 kcal/week → over 2 lb/week of weight gain. That’s obviously not what’s happening.
Any basic BMR calculator puts my BMR around 1,500–1,600 kcal/day, which is further proof your estimate is way too low.
This is a shame because accurate calorie burn was the primary reason I bought Whoop—to maintain a slight deficit while still fueling my training. And it’s frustrating to keep getting the same canned responses from your team. This is a critical metric for people paying good money to monitor calories and performance. Whoop needs to fix this.
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I have the feeling, that they calc calories like Mi Fitness. Active calories + BMR, but they add BMR only during movements, like steps, exercises etc. Lets say when you dont move for 24 hours, your calories for that 24 hours would be just 0. But BMR is a fixed value, independent of you move or not! That all with whoop is so strange.
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What’s even stranger is that when I woke up at 6:30 a.m., my calorie burn was already at 542. Now it’s 3 p.m. and it’s only at 1,000. That means I burned more calories while sleeping. Lol. It’s frustrating that Whoop continues to ignore this issue. I’m still in my trial period and seriously considering canceling and switching to the Oura Ring, which is apparently much more accurate with calorie burn.
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Can anyone recommend a device which they feel would have a similar accuracy to Whoop 4.0 or just an accurate calorie measurement in general.
I will be cancelling whoop MG after this year due to the obvious issues reflected in this thread and I’m looking for an alternative.
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Amazfit Helio band looks interesting. It’s a bit weird how it detects activities but there is a sensitivity button which I have not tried But I do find the HR HRV, sleep are good, calories also seem good enough. Works well on the wrist and there is a bicep band if preferred. I assume this will be deleted soon by admin. Good luck on your search.
Same Cycling Activity. Easy spin for 53 mins, 17mph average.
Garmin 549Kcal but knows more than just HR: Power, Distance and Speed
Whoop 288Kcal
Amazfit 454Kcal
I expect Garmin to be more accurate because it knows more about the activity. But Amazfit is close enough 
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Yep, the Whoop is miles out. On Sunday. I did 8k steps, I’m 90kg and 6 foot 3 and it said I burned 1676 calories. I’d burn that laying in bed all day. Oura ring is much more accurate IMO. I wear both and Oura far more accurate
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I am a little confused, unless you are being sarcastic, but 1676 calories for 8k steps seems a real lot 
My total for the day this is - so total should be circa 2500-2700 based on a 6 foot 3 male at 90kg
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I also have problem with low calories. I eat 2700 kcal a day, whoop calculates 1900 max. Doing it for 3 weeks, weight is slightly higher.
However I am totally frustrated by another thing - developers keep silence since the first post in this thread. What are they doing?
I paid for the life subscription to have a useless chat with ai bot in the app? Cool. Hopefully they will start work.
The daily calorie estimate after a full day is lower than my calculated basal metabolic rate after a full day of activity. I’m incredibly skeptical about the helpfulness of the device with how inaccurate the data is.
Have been running into same issue - burned calories are way too low using common sense and comparing to BMR - making the device useless for calorie tracking and attempting to track a caloric deficit
Hello Guys,
I have the same issue. Been using aw ultra and aw in general for years, whoop was a logical choice to wear at nights, maintaining some sleep measurements and option to wear a normal watch with the whoop on the right wrist. I’ve been using whoop for the 7th day now and I was shocked to see the HR estimates are RIDICULOUS! I am playing a lot of squash with the aw measuring up to 1500-1800kcal / 2 hours, whoop says it’s 1000 kcal tops. The problem with the HR being off with 30-50!% is the whole being of the device falls apart, since after a hard workout, it won’t tell you to rest properly, since it thinks you’ve been lightly training. I’ve ordered the bicep strap and if that does not work, I am cancelling for sure, since it is DANGEROUS for your health because it mistakenly motivates you to overwork and underfeed yourself to achieve your goals. This is not only a mistake in calculations, people can and will seriously injured or worse with these kinds of scores. I’ve read comments like: yeah, all wearables have faulty scores but come on… I can’t take another step during a session and it says I am in Zone1, this is ridiculous.
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Same issue over here. On holidays, hit over 27k steps (around 6 hours walking), and 1 hour of strength training, and below 1700 kcal, when my bmr is around 1450. Garmin is counting almost 2900 kcal.
When writing to support, they just suggest I’m wearing it wrong (I’m wearing the same way as I used the 4.0). Starting to look for a more trustworthy device
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