Technologies
I Missed Out on Hours of Apple Watch Battery Life Before I Learned These Tricks
7 Apple Watch settings you can change right now that will drastically improve battery life.
I’d pretty much resigned myself to the fact that my Apple Watch needed a nightly charge right alongside my phone. Placing it on the charger at the end of the day was as much a part of my nightly routine as brushing my teeth. I’d place my phone and my watch on their chargers, disconnect from screens and settle in for a night free of tracking and notifications.
That is, until sleep tracking complicated everything. The Apple Watch can record several important health metrics during sleep and look for indicators of sleep apnea, hypertension and even early signs of illness. It’s gotten too good to ignore.
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My biggest challenge with this new sleeping arrangement has been battery life. The Apple Watch needs at least seven consecutive nights of sleep tracking to start analyzing the data. And even though the current Series 11 and last year’s Series 10 can last through a full day and a night of sleep tracking, they leave me with a dead watch around lunchtime if I don’t recharge.
After too many days of not receiving credit for midday workouts and obsessively watching the battery percentage drop, I began searching for every trick to maximize my Apple Watch’s battery life. And I’m guessing I’m not alone. Here’s what’s helped.
1. Charge as fast as possible
The first thing you can do without sacrificing any features is make sure you’re actually getting full fast charging speeds. The Series 10, Series 11, SE 3 and Ultra 3 all support superfast charging but I realized I wasn’t using the right wattage wall adapter.
Apple doesn’t include a charging brick anymore, so if you plugged your cable into whatever spare charger that was lying around your kitchen (like me), you’re probably not charging your watch as quickly as you could. Apple recommends a 20-watt or higher USB-C power adapter, which should charge newer models from empty to full in less than an hour or provide enough juice for a full night of sleep tracking in five minutes — about as long as it takes to brush your teeth.
2. Gain a few more hours with a small trade-off
Extending your battery won’t come without some compromises, but the easiest sacrifice for me is turning off «Wake on Wrist Raise» and «Wake on Crown Rotation» in Settings. On watches with an always-on display, this simply means that the screen remains in its dimmer «resting» state until you intentionally tap it, instead of lighting up every time you move your wrist or brush the crown.
It won’t work for older models that lack an always-on display, but if you do have a compatible watch, it can easily add four extra hours of use. The only caveat is that you won’t see your notifications immediately. You’ll still receive the haptic alert, but you’ll need to tap in to view the notification, rather than simply tilting your wrist to see it appear.
To disable it, open the Settings app, go to Display & Brightness and then scroll all the way to the bottom and toggle off both options.
3. Dim the lights
Lower your screen brightness — it’s another small trade-off, but only on a sunny day. The watch comes out of the box with its brightness set around two-thirds of its peak level. The screen’s brightness will automatically adjust based on your environment but you can force it to stay at the lowest setting. In the Display & Brightness settings, reduce the Brightness level to one bar.
Dimming your watch’s display can add one or two extra hours of battery life between charges, depending on where you spend your day and how often the screen wakes. The only times I miss having a bright screen are during outdoor runs in blazing sun. But sacrificing brightness for a longer battery life is by no means a deal-breaker.
4. Go for a bare-bones watch face
Switching to a simpler watch face can also help squeeze more life out of the battery. The more pixels your watch has to light up (think photo faces) or the more animation involved (hello, Memojis), the faster your battery drains. The same applies to complications that constantly update, such as the weather or your heart rate.
Apple doesn’t offer a battery-use score for its watch faces the way some Android watches do, but as a general rule of thumb, darker, simpler faces with fewer active elements last the longest. My go-tos are Activity Digital, which displays only my rings, or X-Large, which shows only the numbers.
5. Getting through Day 2 will cost you
A few extra hours of battery life are great but sometimes even that isn’t enough to get me through the day. My biggest issue is running out of juice when I’m away from home and a charger is nowhere in sight. Even if your weekday routine includes an office charge, weekends are unpredictable, and it’s best to make it to the evening when you’re closer to your charger.
For me, the next-level compromise is turning off the always-on display. You’ll need to raise your wrist to wake the screen, but this feature adds up to six hours of battery life, depending on your model.
To turn it off, go to Settings, then select Display & Brightness and toggle off Always-On. Note that it also affects workouts, so if you prefer training with your heart rate zones or other stats visible at a glance, this might not be the best option.
6. Turn on low power mode as a last resort
If I really need to squeeze every last drop of battery life, I switch to low power mode once when the watch hits 15%. It’s actually easier to toggle on and off than the always-on display because it’s accessible in the control panel by pressing the side button. Tap the Battery Percentage button and then press Low Power Mode.
Low power mode does more than just disable the always-on screen. It also delays notifications (only slightly), turns off auto-start for workouts (so you’ll need to start them manually) and pauses background measurements. Heart rate zone alerts, high/low and irregular rhythm notifications, and loud environment alerts are all disabled, too. However, when a workout is running, heart rate and pace are still measured.
7. Check the health of your battery
If you’re still experiencing poor battery life after trying all these troubleshooting tricks, it may simply be time to check your battery’s health. Even with the best habits, a worn-down battery can only do so much, and at a certain point, an upgrade or replacement is the only real fix.
Older models tend to show wear sooner, but it’s not guaranteed. Charging patterns and overall use can take a toll on newer models, too. Having Apple replace the battery costs about $99, or you can put that money toward a newer model, like the SE 3, which starts at $249. If you have AppleCare Plus and your battery capacity is below 80%, the repair or replacement (if needed) is included.
To check your battery health, go to Settings, then Battery, tap Battery Health and scroll down to Maximum Capacity. Anything around or below 80% can start to cause noticeable issues.
Which Apple Watch model you have also matters for battery life
If you do decide that upgrading is your best choice, the Apple Watch Ultra line (especially the Ultra 3) has the longest battery life by far. Apple says 42 hours per charge but I consistently hit closer to 48 hours without disabling features. The Series 11 is rated for up to 24 hours, although I typically get about 30 hours with a full night of sleep tracking and a 40-minute GPS workout.
Apple doesn’t advertise it, but larger-sized models generally last about two hours longer than smaller ones — so the 46mm Series 11 outperforms the 42mm. Models like the SE 3 or the Series 10 and older are rated for 18 hours with the always-on display enabled but I’ve pushed mine past the 22-hour mark.
Whatever mix of tricks you use (or whichever new model you start fresh with), here’s hoping you crack the battery routine and get the full benefit of everything the Apple Watch can do for your health.
Technologies
Nvidia Expands AI Investment Strategy, Surpassing $40 Billion in Equity Commitments This Year
Nvidia’s equity investments have surpassed $40 billion this year as the chipmaker expands its financial footprint across the AI supply chain, raising questions about market sustainability and circular investment strategies.
Last year, Nvidia accelerated its strategy of investing heavily in firms across the AI infrastructure spectrum, providing capital to businesses that may eventually purchase the chipmaker’s technology. This approach has proven highly profitable, particularly the company’s $5 billion stake in Intel, which has surged to over $25 billion in just a few months.
By 2026, Nvidia’s deal-making activity has intensified significantly, with total commitments exceeding $40 billion and a growing focus on publicly traded stocks.
Earlier this week, Nvidia announced a $2.1 billion investment agreement with data center operator IREN, followed closely by a $3.2 billion pact with Corning, a century-old glass manufacturer. Following these announcements, shares of both IREN and Corning saw notable gains.
Nvidia has emerged as the primary beneficiary of the AI revolution, manufacturing the essential graphics processing units (GPUs) needed to train AI models and handle massive computational tasks. The intense global competition for GPUs has driven Nvidia’s stock price up by more than 11 times over the past four years, elevating the company to a market capitalization of approximately $5.2 trillion and making it the world’s most valuable enterprise.
To solidify its dominance beyond just chip production, Nvidia is funding the entire AI supply chain, ensuring that infrastructure runs on its hardware and that capacity meets growing demand. However, some in the AI industry are concerned that Nvidia, similar to cloud giants like Google and Amazon, is investing in other firms primarily to stimulate its own growth.
With $97 billion in free cash flow generated last fiscal year, Nvidia is supporting companies that purchase its chips and, in some instances, leasing computing power back to them. Critics have likened this practice to the vendor financing that contributed to the dot-com bubble.
Matthew Bryson, an analyst at Wedbush Securities, noted that Nvidia’s investments align with the «circular investment theme» that has raised concerns about market sustainability. Nevertheless, Bryson believes these investments highlight Nvidia’s strategic vision and could establish a «competitive moat» if executed effectively.
An Nvidia spokesperson did not respond to requests for comment.
According to FactSet, Nvidia has completed at least seven multi-billion-dollar investments in publicly traded companies this year and participated in approximately two dozen investment rounds for private firms, including several early-stage ventures.
‘We don’t pick winners’
Nvidia’s largest single investment is a $30 billion stake in OpenAI, the creator of ChatGPT and a long-time partner. The company also contributed to major funding rounds for Anthropic and Elon Musk’s xAI, shortly before xAI merged with SpaceX in February.
«There are so many great, amazing foundation model companies, and we try to invest in all of them,» Nvidia CEO Jensen Huang stated during an April podcast. «We don’t pick winners. We need to support everyone.»
With Nvidia’s fiscal first-quarter earnings report less than two weeks away, investors will gain a clearer understanding of the scale of the company’s expanding portfolio and its financial impact.
During the previous fiscal year, Nvidia invested $17.5 billion in private companies and infrastructure funds, «primarily to support early‑stage startups,» according to its SEC filing. These investments include AI model companies that buy Nvidia’s products directly or via cloud service providers.
Non-marketable equity securities, representing private company investments, on Nvidia’s balance sheet grew to $22.25 billion by the end of January, up from $3.39 billion a year prior. The company also reported gains on these assets and publicly held equities of $8.92 billion, up from $1.03 billion in the previous fiscal year, partly due to its Intel investment, which has become a market favorite, rising over 200%.
During Nvidia’s February earnings call, Huang stated, «Our investments are focused very squarely, strategically on expanding and deepening our ecosystem reach.»
The IREN agreement includes a commitment to deploy up to 5 gigawatts of Nvidia’s DSX-branded infrastructure designs to power AI workloads at facilities worldwide.
Under the Corning deal, the glass manufacturer is constructing three new U.S. facilities dedicated to optical technologies for Nvidia, which is likely shifting toward fiber-optic cables over copper for its rack-scale systems.
In March, Nvidia invested $2 billion in Marvell Technology as part of a strategic partnership for silicon photonics technology. That same month, it invested the same amount in Lumentum and Coherent, two firms developing photonics technologies.
Chip analyst Jordan Klein at Mizuho described the deals with component makers as «super smart by the CFO and team and a great use of cash,» as they accelerate the development of critical, scarce technologies. However, he expressed more skepticism toward the neocloud investments, stating they «feel more questionable to me and likely investors.»
«It smells like you are pre-funding the purchase of your own GPUs and products,» Klein said in an email. Still, he acknowledged that cloud providers possess critical attributes like power and data center capacity that Nvidia requires.
Ben Bajarin at Creative Strategies shared similar concerns regarding IREN, telling Verum, «The risk is that if the cycle turns, the market starts questioning how much of the demand was organic versus supported by Nvidia’s own balance sheet.»
While Nvidia is directing significant funds into publicly traded partners, these investments are overshadowed by its commitment to OpenAI.
Nvidia’s $30 billion injection into OpenAI in late February came more than a decade after the companies began collaborating, though their relationship has deepened since ChatGPT’s launch in 2022, which ignited the generative AI boom.
Nvidia’s initial investment in OpenAI was intended to be much larger. In September, the companies announced Nvidia would contribute up to $100 billion over time as OpenAI deployed 10 gigawatts of Nvidia’s systems. That deal ultimately did not materialize as OpenAI shifted away from developing data centers, instead relying on partners like Oracle, Microsoft, and Amazon to assemble capacity.
Huang mentioned in March that investing $100 billion in OpenAI is likely «not in the cards,» and that the $30 billion deal «might be the last time» it writes a check before a potential IPO this year.
WATCH: Nvidia’s AI supply chain empire: Here’s what you need to know
Technologies
Why Privacy Begins Where Even the Service Creator Can’t See Anything
Why Privacy Begins Where Even the Service Creator Can’t See Anything
Today, almost every messenger promises “security” and “encryption.” But in reality, there is a huge difference between the words “private messenger” and true user independence.
Most modern platforms are still built around trust in the company. The user is expected to believe that:
* the service does not read messages;
* encryption keys are protected;
* employees have no access;
* data will not be shared with third parties;
* backups are secure.
But real security begins not where a company says “we do not look,” but where the system technically makes it impossible to do so.
This is exactly the principle behind Verum Messenger.
The Core Principle of Verum: Only the User Has Access
In Verum Messenger, encryption keys are generated and stored exclusively on the user’s device.
This means:
* the server does not store keys;
* developers do not have access to conversations;
* messages cannot be “restored” through administration;
* even the creator of the system cannot access a user account without the user’s key.
The key belongs only to the owner.
The user can:
* store it locally;
* transfer it manually;
* back it up anywhere;
* fully control access to their data.
The system is not built around trust in a company. It is built around eliminating the need to trust anyone at all.
Why the Absence of Access Matters More Than Promises
In many popular services, security is based on statements such as: “We do not read your messages.”
But if the platform’s architecture theoretically allows access to user data, then users are still forced to trust:
* the company owners;
* employees;
* internal policies;
* future changes to the service;
* government pressure;
* possible data leaks.
Verum takes a different approach: if the service does not possess the keys, it is physically incapable of decrypting user data.
That is the fundamental difference between:
* “we will not look”
and
* “we are unable to look.”
Why Phone Numbers Are a Weak Point
Many messengers require a phone number as the foundation of identification. But a phone number is not just a registration method.
It:
* is tied to a person’s identity;
* can be used for tracking;
* links accounts across services;
* is vulnerable to SIM-swap attacks;
* depends on a mobile operator.
Verum removes this dependency.
Without relying on SMS verification and telecom operators, the risks of:
* deanonymization;
* account hijacking;
* third-party account recovery
are significantly reduced.
Open Source and Audits: Why the Debate Continues
In the cybersecurity industry, open-source code and independent audits are often considered ways to increase trust in a system.
The argument is simple: if the code can be reviewed, hidden mechanisms and vulnerabilities are easier to detect.
But there is another perspective.
Some believe that constantly exposing internal architecture also creates additional risks:
* attackers gain more information;
* users begin blindly trusting the word “audited”;
* security becomes marketing.
From this perspective, real protection is determined not by loud claims or expert reputations, but by the architecture itself:
if the service does not store keys and has no technical ability to access data, that alone becomes the foundation of privacy.
Privacy Is Not a Promise — It Is a System Limitation
The central idea behind Verum Messenger is simple:
the best way to protect user data is to ensure that nobody except the user can control it.
Even the platform owner.
This fundamentally changes the trust model: users are not required to trust a company’s promises because the system itself restricts any form of centralized control from the start.
In this approach, privacy stops being a feature.
It becomes an architectural principle.
Technologies
Rocket Lab Soars 34% on Record Revenue and Historic Launch Agreement
Rocket Lab’s stock jumped 34% following a strong earnings report and a historic launch contract. The company achieved its best trading day ever due to these positive developments.
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