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 10
Buyer's Guide: Apple Watch (Caution)

Popular Stories

Nineth iOS 19 Feature

iOS 19 Beta is a Month Away With These New Features for Your iPhone

Thursday May 8, 2025 7:37 am PDT by
The first iOS 19 beta is just one month away, and there are already many new features and changes that are expected with it. Apple should seed the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key iOS 19 rumors...
Foldable iPhone 2023 Feature Homescreen

Apple's Foldable iPhone Display Tech May Set New Industry Standard

Thursday May 8, 2025 3:29 am PDT by
Apple's upcoming foldable iPhone will feature a new type of display panel developed by Samsung that has never been used in a foldable product, claims a source with links to Apple's supply chain. According to the account yeux1122 on the Korean Naver blog, the foldable iPhone will use a custom display process for which Apple will hold branding trademark rights, and that meets Apple's stringent ...
siri glow

iPhone Users Now Able to Submit Claims in $95 Million Siri Spying Lawsuit

Wednesday May 7, 2025 11:40 am PDT by
If you owned a Siri-compatible device and had an accidental Siri activation between September 17, 2014 and December 31, 2024, you could be eligible for a payment from Apple as part of a class action lawsuit settlement. Apple in January agreed to pay $95 million to settle a class action lawsuit involving Siri spying accusations, and a website to distribute the funds has now been set up and...
iOS 18

Here Are Apple's Full iOS 18.5 Release Notes

Tuesday May 6, 2025 2:17 pm PDT by
Apple today seeded the release candidate version of iOS 18.5 to developers and public beta testers, giving us a look at the final version of the update that will be provided to the public next week. With the release candidate, Apple provided release notes, so we have a more complete look at the new features that are included in the update, including those that weren't found during the beta...
Mayday Calendar

Apple Acquisition Hints at Upgraded Calendar App on iOS 19 or Beyond

Friday May 9, 2025 9:13 am PDT by
Apple acquired Canadian startup Mayday Labs in April 2024, according to a European Commission listing, spotted by French blog MacGeneration. The acquisition had not received widespread attention from tech publications until now. Apple is legally required to report certain acquisitions to the European Commission, under the terms of the EU's Digital Markets Act. Mayday Labs founder Jeremy...
fortnite apple featured

Epic Games Submits Fortnite to U.S. App Store

Friday May 9, 2025 9:57 am PDT by
As promised, Epic Games today submitted Fortnite to the U.S. App Store, and if approved by Apple, it will mark the first time that the Fortnite app has been available in the United States since 2020. Fortnite will include options to purchase in-app currency from the web rather than through in-app purchase, which is what got the game banned to begin with. This time, though, Apple has been...
airpods pro purple

Apple's Camera Equipped AirPods and Apple Watch Could Launch as Soon as 2027

Thursday May 8, 2025 10:14 am PDT by
Apple is working on versions of the AirPods and Apple Watch that incorporate a camera, and the devices could be ready to launch sometime around 2027, reports Bloomberg. Apple has developed a chip codenamed "Nevis" that will be used for its camera-equipped Apple Watch, while a chip codenamed "Glennie" will be incorporated into the AirPods. Apple is aiming to have the chips ready "by around...

Top Rated Comments

SnakeEater1993 Avatar
40 months ago
Blood glucose and blood pressure ...THESE things are going to save lives.
Score: 43 Votes (Like | Disagree)
Eriamjh1138@DAN Avatar
40 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
40 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
40 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
40 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
40 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)