Kuo: Apple Watch Series 7 Missed Body Temperature Monitoring Due to Algorithm Problems, but Feature Could Still Come to Series 8

Apple canceled plans to add a body temperature sensor to the Apple Watch Series 7, but the feature could come to the Apple Watch Series 8 instead, according to reputable analyst Ming-Chi Kuo.

Apple Watch Body Temperature Finished
In a thread of tweets, Kuo explained that Apple originally intended to offer a body temperature measurement feature with the Apple Watch Series 7 models, but the company shelved the plans when the body temperature algorithm it had developed failed to meet requirements before the device entered the engineering validation testing (EVT) phase last year.

Kuo believes that the upcoming Apple Watch Series 8 could feature body temperature monitoring, providing "the algorithm can meet Apple's high requirements before mass production."

The problems Apple has experienced relating to body temperature measurement purportedly relate to the fact that skin temperature quickly varies based on the environment, and since a smartwatch cannot monitor core body temperature using hardware, the feature is heavily dependent on an algorithm that produces accurate results.

Kuo added that Samsung is experiencing similar challenges with body temperature measurement, noting that the Samsung Galaxy Watch 5 may not come with a body temperature monitoring feature due to algorithmic limitations.

Both Kuo and Bloomberg's Mark Gurman have previously discussed how the 2022's Apple Watches were likely to offer body temperature monitoring capabilities, but rumors related to the feature have quietened in recent times. Kuo's comments today appear to raise further doubts around whether the feature will actually debut with the Apple Watch Series 8 later this year.

For everything we know so far about the Apple Watch Series 8, check out our dedicated guide.

Related Roundup: Apple Watch Series 9
Buyer's Guide: Apple Watch (Neutral)

Top Rated Comments

SnakeEater1993 Avatar
24 months ago
Blood glucose and blood pressure ...THESE things are going to save lives.
Score: 43 Votes (Like | Disagree)
Eriamjh1138@DAN Avatar
24 months ago


I went from a S0-watch to S6. Some updates, a little faster and a few gimmicks like EKG and Oximeter - but essentialy it still feels like a minor upgrade to me - probably going to wait for S10-S12 for the next one.
Unless you stayed at watch OS 2.x, I’m calling you a liar.
For me, 3.x was a performance killer on my S0. Every touch took seconds to react.

There’s no way the watch 6 doesn’t feel faster unless you just use it to tell time.
Score: 22 Votes (Like | Disagree)
t0rqx Avatar
24 months ago
Cool, but not really making me want to upgrade from a say series 5 or 6.
Score: 17 Votes (Like | Disagree)
No5tromo Avatar
24 months ago

Blood glucose and blood pressure ...THESE things are going to save lives.
Even if they are not super accurate but they can just provide an indication that something might be off I would buy this for my mother right away.
Score: 11 Votes (Like | Disagree)
SilenceBroken Avatar
24 months ago
I have a S3... I think It'll be at least another generation or two before a worthy/needed update.
Score: 10 Votes (Like | Disagree)
Howyalikdemapls Avatar
24 months ago

I went from a S0-watch to S6. Some updates, a little faster and a few gimmicks like EKG and Oximeter - but essentialy it still feels like a minor upgrade to me - probably going to wait for S10-S12 for the next one.
I went from S2 to S5 and it’s night and day. The series 2 was so slow it was laughable, and the battery only lasted about half the day. I love my S5 but am still hoping to upgrade to the S8 if there are some worthy changes. I decided to skip the S6, so when the S7 was discovered to be essentially the same as the S6 I decided to skip the S7 too. Really hopeful S8 brings something new to the table or at least a faster processor and better battery life.
Score: 9 Votes (Like | Disagree)

Popular Stories

iOS 17

10 New Things Your iPhone Can Do in Next Week's iOS 17.4 Update

Friday March 1, 2024 1:30 am PST by
Apple will this month release iOS 17.4, its biggest iPhone software update of the year so far, featuring a number of features and changes that users have been anticipating for quite a while. Below, we've listed 10 new things that your iPhone will be able to do after you've installed the update, which is projected to arrive by March 7. When the day arrives, be sure to check Settings ➝...
Google maps feaure

Google Maps Finally Rolls Out Glanceable Directions

Wednesday February 28, 2024 2:07 am PST by
After more than a year since announcing the feature, Google Maps is finally rolling out glanceable directions on Android and iOS (via Android Police). The feature allows users to view turn-by-turn directions and a live ETA directly from their device's lock screen – information that was previously only visible when a phone was unlocked. Glanceable directions also work on the app's route...
iOS 18 Mock iPhone 16 Feature Gray

iOS 18 Rumored to Be Compatible With These iPhone Models

Tuesday February 27, 2024 6:31 am PST by
iOS 18 will be compatible with the iPhone XR, and thereby also the iPhone XS and iPhone XS Max models with the same A12 Bionic chip, according to a post on X today from a private account with a proven track record of sharing build numbers for upcoming iOS updates. The post was spotted by MacRumors contributor Aaron Perris, and it has since been deleted. However, this was likely because the...
M3 MacBook Air Feature

New MacBook Air Models Launching This March: 5 Features to Expect

Wednesday February 28, 2024 1:50 am PST by
The existing 15-inch MacBook Air arrived in June 2023, which is not that long ago in terms of Mac update cycles. However, Apple released the current 13-inch ‌MacBook Air back in June 2022. It is now the oldest Mac in Apple's current crop, having not been updated in 600 days. But rumors suggest that is unlikely to be the case for much longer. According to Bloomberg's Mark Gurman, Apple has...
Apple Maps vs Google Maps Feature

Apple Maps vs. Google Maps: Which Is Better?

Friday March 1, 2024 7:10 am PST by
Apple Maps has been providing navigational guidance to Apple users for almost 13 and a half years now, and much has changed about the app in that time. However, according to data from Canalys, the overwhelming majority of iPhones in the U.S. still have Google Maps downloaded as an alternative to Apple Maps, which comes preinstalled on all iPhones. We want to hear from MacRumors readers. Which do...
iPad Pro OLED Feature 2

OLED iPad Pro's Thin Design Highlighted in CAD Drawings

Wednesday February 28, 2024 1:22 pm PST by
Apple is working on a new version of the iPad Pro that is set to launch as soon as March, and the refresh will mark the biggest design update to the Pro lineup since 2018. Apple is transitioning to OLED displays, and the swap will allow for a major change to the overall thickness of the device. CAD drawings of the upcoming ~11-inch and ~13-inch iPad Pro models give us some insight into just...
airpods pro 2 pink

Apple Releases New Beta Firmware for AirPods Pro 2

Thursday February 29, 2024 11:41 am PST by
Apple today introduced a new beta firmware update for the AirPods Pro 2, both the USB-C and Lightning versions. The new firmware is version 6E188, up from the prior 6B34 firmware released in December. Apple does not often provide details or notes on what features might be included in the refreshed firmware, so it is unclear what's new. Note that this software is limited to developers at the...