Redesigned Apple Watch Series 7 Could Prioritize Longer Battery Life Over Additional Sensors

Apple could skip adding new health sensors to this year's redesigned Apple Watch Series 7 in favor of improving the battery life of the device, based on rumors and recent reports.

Apple Watch 7 Unreleased Feature Red
According to well-respected Apple analyst Ming-Chi Kuo, the Series 7, expected to drop in September, could feature the first significant redesign the Apple Watch has had in several years. As part of the redesign, which could include a flat-edged case that's similar to the iPhone 12 or the iPad Pro, Apple is also said to be adopting new double-sided System in Package (SiP) technology to reduce the size of the processor.

A new report from the Economic Daily News notes that the smaller "S7" chip will free up internal space for a larger capacity battery or additional health sensors. However, Apple is expected to delay the introduction of other sensors until 2022 at the earliest, according to multiple reports from sources with a high accuracy for predicting Apple's plans.

According to Bloomberg, Apple is working on a way to bring blood glucose monitoring capabilities to the Apple Watch using a non-invasive optical sensor, but it will not be ready for commercial launch for several more years. Apple was also considering adding a body temperature sensor in the 2021 Apple Watch, but Bloomberg says it is instead likely to be introduced in the 2022 update.

With the redesign expected to allow Apple to either retain the size of the current generation model or slightly thicken it – albeit not in a way noticeable to the user – this could leave ample room for Apple to increase the battery capacity inside.

The 44mm Apple Watch Series 6 uses a 1.17Wh battery that's 3.5% larger than the battery in the Series 5, while the 40mm Apple Watch Series 6 includes a 1.024Wh battery that's 8.5% larger than the battery in the Series 5. However, despite improvements in charging speed, the addition of new features and sensors in successive Apple Watch models has seen battery life stay relatively constant over the years.

applewatchseries6design
Apple advertises the Series 6 as offering all-day battery life up to 18 hours. Apple bases "all-day" estimates on 90 time checks, 90 notifications, 45 minutes of app use, and a 60-minute workout with music playback via Bluetooth. Unlike other Apple products like iPhones, however, this claim has been consistent since the Apple Watch Series 1 through to the latest model.

One rationale for prioritizing increased battery life in the Series 7 is that Apple could heavily promote the improvement in order to lure owners of older Apple Watch models to upgrade. This could be particularly attractive to users whose Apple Watch battery life has gradually deteriorated over the years due to chemical aging.

Increasing the battery capacity could also allow Apple Watch to better compete with rival smartwatches that tend to promote their multi-day battery life as a tentpole feature, such as the Fitbit Versa 3, which can operate for over six days on a single charge.

Aside from potential battery improvements, Apple Watch Series 7 is also expected to feature improved wireless connectivity, an improved U1 Ultra Wideband chip, thinner display bezels, and the use of a new lamination technique that brings the display closer to the front cover, with updated screen technology.

Related Forum: Apple Watch

Top Rated Comments

haruhiko Avatar
17 weeks ago
“Apple delays features for the Apple Watch Series 7 so that they will have something to sell for the Series 8.”

(I know, I know, it’s just a joke?)

I have used Apple Watch since the first generation in 2015 and I’ve upgraded every generation or 2 since then. The battery life has never been a concern for me. I just charge it overnight during sleep and at the end of the day it’s down to around 40-50% always.
I’d prefer more sensors than adding battery life UNLESS they can make it to last 3-4 days.
Score: 30 Votes (Like | Disagree)
contacos Avatar
17 weeks ago
Unless they improve it to DAYS I don’t see the point. What does 1,5 days for example being me? I rather start every day with 100% and know for sure it will last me all day instead of continuing day 2 on 43% or something like that and hoping it will last.

same reason I never got the discussion about the iPhone either. Who wants to leave the house in the morning with 40% battery? I always start on 100% to be on the save side. As long as a device lasts me until bed time, I am good. I’d charge it to 100 anyway
Score: 15 Votes (Like | Disagree)
NPC Compliant Avatar
17 weeks ago
Battery life is my main gripe, still using a series 4 (which actually lasts for a significantly shorter time than my series 3 did)
Score: 12 Votes (Like | Disagree)
The Game 161 Avatar
17 weeks ago
Good my series 6 battery life is poor
Score: 11 Votes (Like | Disagree)
djcerla Avatar
17 weeks ago
My Series 4 battery had deteriorated to 82% capacity; even now, it lasts a full day, no exceptions, even if I use the 4G modem and record a training session. I'd take the extra sensors over a better battery.
Score: 10 Votes (Like | Disagree)
TheralSadurns Avatar
17 weeks ago

“Apple delays features for the Apple Watch Series 7 so that they will have something to sell for the Series 8.”

(I know, I know, it’s just a joke?)

I have used Apple Watch since the first generation in 2015 and I’ve upgraded every generation or 2 since then. The battery life has never been a concern for me. I just charge it overnight during sleep and at the end of the day it’s down to around 40-50% always.
I’d prefer more sensors than adding battery life UNLESS they can make it to last 3-4 days.
This.
I actually think knowing that it lasts a day rather than... 3 days or so can be an advantage.
For example: I know my Apple Watch will last ONE day. I put it on the charger every single night when I go to bed. It's a ritual like brushing your teeth.
Speaking of which... my electric toothbrush lasts around 5-7 days so I don't have to... and shouldn't charge it every day. As a result I forget charging it every few weeks... and find an empty toothbrush the next day. This has never happened to my Apple Watch.
Score: 10 Votes (Like | Disagree)

Related Stories

Apple Watch 7 Unreleased Feature

Apple Watch Series 7 to Focus on One Major Upgrade

Wednesday August 4, 2021 2:12 am PDT by
The upcoming Apple Watch Series 7 will focus on one important feature in an attempt to tempt existing Apple Watch users that have an older device to upgrade, according to recent reports. Apple may skip adding new health sensors to this year's Apple Watch Series 7 in favor of improving the device's battery life. The company is said to be adopting new double-sided System in Package (SiP)...
apple watch 6s 202009

Apple Discontinues Apple Watch Series 6 as Series 7 Pre-Orders Begin

Friday October 8, 2021 7:03 am PDT by
The Apple Watch Series 6, introduced by Apple in September of last year, has been discontinued following the launch of the new Apple Watch Series 7. Following pre-orders of the Apple Watch Series 7 opening up earlier today, Apple has removed the Series 6 from its website, no longer offering it to purchase for customers. The Apple Watch Series 7 replaces the Series 6 and now leaves the Apple...
91mmobile apple watch series 1

What to Expect From the Apple Watch Series 7

Friday August 27, 2021 11:12 am PDT by
Apple in just a few weeks is expected to release the Apple Watch Series 7 alongside new iPhone 13 models, and it's looking like this could be one of the most exciting design updates we've had to the Apple Watch in a few years. Subscribe to the MacRumors YouTube channel for more videos. We're not expecting new health features this year, and if there are new health sensors, Apple has kept them...
ifixit apple watch teardown 1

Apple Watch Series 7 Teardown Reveals Battery Capacity, Display Updates and More

Thursday October 21, 2021 1:52 pm PDT by
With the Apple event this week and the imminent launch of new MacBook Pro models, it's easy to forget that the Apple Watch Series 7 just came out last Friday. iFixit didn't forget, though, and has done one of its traditional teardowns on Apple's newest wrist-worn device. Today's teardown features both the 41 and 45mm versions of the watch, and it unveils some secrets we weren't previously...
apple watch series display lineup

Apple Watch Series 7 Tidbits: S7 Chip, Storage Remains 32GB, USB-C Fast Charging Cable in the Box, and More

Wednesday September 15, 2021 9:00 am PDT by
Contrary to some recent media reporting, MacRumors can confirm that the new Apple Watch Series 7 is powered by a new S7 chip, although the S7 is based around the same CPU found in the S6 chip from the Series 6. Apple announced the Apple Watch Series 7 during its event yesterday, but the watch will not be available until "later this fall." As a result, Apple has so far offered relatively...
Apple Watch Series 7 Pink and Green Feature

Apple Watch Series 8 Could Come in Three Sizes, Claims Analyst

Tuesday October 12, 2021 11:06 am PDT by
Next year's Apple Watch, which would be the Series 8, could come in three sizes, according to display analyst Ross Young. On Twitter, Young said that people should not be surprised "if there are three sizes next year." Young did not provide details on what those three sizes might be, but he asked if users would like to see a "bigger display," so presumably the third size would be a larger...
series 7 vs series6 screen size

New Image Offers Clearer Look at Apple Watch Series 7 Screen Size Compared to Series 6

Thursday October 14, 2021 2:27 am PDT by
The Apple Watch Series 7 officially hits the shelves and starts arriving with customers worldwide tomorrow. While we have seen media reviews of the new watch, we've yet to see a clear real-world comparison to last year's Apple Watch Series 6 until now. Apple says the new Apple Watch Series 7 features a 20% larger screen than the Series 6, primarily thanks to reduced bezels that allow the...
apple watch series 7 mystery

What Went Wrong: Apple Watch Series 7 Rumors Edition

Thursday September 16, 2021 6:57 am PDT by
Going into an Apple fall season, excitement typically revolves around the new iPhones. This year, however, the Apple Watch stole some of the iPhone's spotlight due to reports, leaks, and rumors suggesting it would be getting a significant redesign. One of the biggest surprises during Apple's "California streaming" event was the new Apple Watch, not because of the features or design it...
Apple Watch Series 7 Pink and Green Feature

Prosser: Apple Watch Series 7 to Ship in Mid-October

Thursday September 30, 2021 3:31 pm PDT by
The Apple Watch Series 7 will ship in mid-October with pre-orders to begin "as early as next week," claims leaker Jon Prosser, citing sources "familiar with the release." Apple introduced the Apple Watch Series 7 at its September "California Streaming" event alongside the iPhone 13 models, but at the time, said the new Apple Watch would ship later in the fall. There has been no official...
91mmobile apple watch series 1

Apple Watch Series 7 Major Redesign Revealed

Friday August 27, 2021 3:07 am PDT by
A major redesign appears to be in store for the upcoming Apple Watch Series 7 models, based on recent reports. According to renders from 91mobiles that were reportedly obtained from supply chain sources, the Apple Watch Series 7 will offer a new design that mirrors the squared-off edges of the iPhone 12 lineup, iPad Pro, iPad Air, and 24-inch iMac. The Series 7 will also apparently be 1.7mm...