Technologies
Living With the Apple Watch Series 9: My Thoughts 3 Months Later
The Apple Watch Series 9 checks all the right boxes, but it feels like bigger changes are coming with future models.
The Apple Watch Series 9 leaves me wanting more, in both good ways and not-so-good ways.
Wearing the $399 Series 9 as my regular watch for three months (aside from taking a few breaks to test other smartwatches) has given me a lot to look forward to, thanks to new features like Double Tap and Siri’s ability to answer health questions. At the same time, these fresh tricks aren’t integral enough to my daily life to make the Apple Watch Series 9 feel significantly different from its predecessor.
My initial impression of the Series 9 from September holds true. It’s the best smartwatch for iPhone owners (and perhaps the best smartwatch) in general, thanks to its snappy and easy-to-navigate interface, wide selection of health monitoring options and smooth integration with Apple products. The biggest reason to buy it over the cheaper Apple Watch SE remains the Series 9’s extra health and wellness tracking functionality, such as ECG monitoring, blood oxygen readings and temperature sensing. If your primary reason for buying a smartwatch is keeping a closer eye on your health, the Series 9 is the right choice.
Apple briefly stopped selling the Series 9 online and in its stores because of a patent dispute with health tech company Masimo regarding the watch’s blood oxygen detection feature. But an appeals court paused the ban Wednesday, according to CNBC, and Apple has since resumed sales of the Series 9. At least for now.
If you are able to get your hands on a Series 9 and are considering whether it’s worth it, here are my thoughts after using it for three months. For a deeper dive into everything that’s new with the Series 9, check out my full review from September.
Siri gets a health boost on the Apple Watch Series 9

A big part of why I wanted to revisit the Series 9 is because some of the watch’s most interesting features weren’t available at launch. Siri’s ability to answer health-oriented questions is one such example. Apple announced this functionality when the watch debuted in September, but only brought it to the watch through a software update in December. The Series 9 and Ultra 2 are the only Apple Watches that support this feature because the feature requires Apple’s latest processor.
I’ve been excited to try this out because it could solve one of the Apple Watch’s biggest problems: that it can be too difficult to find specific health statistics at a glance. Seeing how many steps you’ve taken this week, for example, can take a few taps in Apple’s Health app. Siri’s ability to answer questions like these on the fly opens up a lot of potential for Apple’s digital assistant to become even more useful.
So far, I’ve been asking the Series 9 questions like how I slept last night, how many minutes I’ve spent exercising this week, how far I’ve walked today and what my average walking heart rate is. Siri has been able to answer these questions with ease, but I also feel like Apple’s virtual helper could be doing much more in this area. For example, I’d love to be able to ask Siri what time I should go to sleep tonight based on my daily activity and the previous night’s sleep. Siri also couldn’t tell me what my most active day was for this week when asked.

Part of that is because of Siri and the Apple Watch’s limitations. While Apple does highlight trends related to your sleep and allows you to set a bedtime schedule, it doesn’t offer sleep coaching features that provide advice on how to improve your sleep. Nor does it provide bedtime recommendations based on your activity and slumber patterns, like some of its rivals. How can Siri tell me when to hit the sack based on how busy my day was if the Apple Watch isn’t analyzing that type of data?
Siri can also only answer health questions based on data from the last week or so since such queries are processed on the watch itself rather than the cloud for privacy reasons. Still, Siri’s new health knowledge feels like an important first step toward making the Apple Watch (and Siri) better health-tracking companions.
Double Tap on the Apple Watch Series 9

Another major new feature that wasn’t available until after the Series 9 launched is Double Tap. As the name implies, Double Tap makes it possible to navigate your Apple Watch by tapping your thumb and index finger together. It’s kind of like an invisible button for scrolling through your widget stack and dismissing notifications. You can also use Double Tap to answer and dismiss calls, play or pause music, reply to text messages through voice dictation, manage timers and capture a photo with your iPhone using the Camera Remote app.
Shortly after Double Tap arrived on the Series 9, I wrote that I hadn’t been using the feature often. My opinion hasn’t changed, although Double Tap does feel more responsive than before. I don’t know if the feature itself has improved with new software updates, or if I’ve just had more time to get the hang of it.
The biggest problem is that Double Tap doesn’t feel intuitive just yet. While I love the idea of using my Apple Watch without having to touch it with my opposite hand, I’m conditioned to tap or swipe, or even twist the Digital Crown before tapping my fingers together. Whenever I use Double Tap, it feels like I’m consciously thinking about it rather than having it be a genuine reaction when my wrist buzzes.
That said, I’m excited about what Double Tap means for the Apple Watch. It feels like the start of the Apple Watch becoming a more intuitive, ambient screen that lives on your wrist rather than something that you have to consciously interact with. Although I don’t find Double Tap very useful yet, that’s just one opinion. My colleague Lexy Savvides called Double Tap «helpful» and «accurate» after testing the Apple Watch Series 9 and Ultra 2.
The Apple Watch Series 9 as a health tracker

The Apple Watch Series 9 has all the health and wellness tracking metrics that are expected of a watch at this price. That includes:
- ECG monitoring
- High and low heart rate notifications
- Irregular heart rate notifications
- Blood oxygen monitoring
- Overnight temperature readings
- Sleep tracking
- A wide variety of workout types
- Automatic workout detection for certain exercises like walking, running and cycling
- The Mindfulness app for breathing exercises and mood logging
All of these features are present in the Series 8 as well, but the cheaper $249 Apple Watch SE is missing ECG monitoring, blood oxygen and skin temperature readings. The pricier $799 Apple Watch Ultra 2 has a few extras for athletes and outdoor enthusiasts, such as a more rugged titanium build and dual-frequency GPS.
While the Series 9 checks the right boxes, I wish Apple did more to make sense of all the health data it gathers. Products from Garmin, Oura and Fitbit can make observations about whether you’re ready for a workout or need to take a rest day based on factors like activity and sleep. Apple can nudge you to get up and move, but the Apple Watch is still missing these big-picture observations. Google-owned Fitbit is also launching a program called Fitbit Labs in 2024 that will use AI to connect the dots between certain data points, in yet another sign that Apple’s rivals are investing in new ways to analyze and contextualize health metrics and activity.
You also don’t get nearly as much sleep data from the Apple Watch as you do with other trackers from the companies mentioned above. The Apple Watch can log sleep duration and stages of sleep along with highlighting trends such as average sleep duration over the past week and changes in respiratory rate.
Other trackers provide sleep scoring and coaching features that assess the quality of your sleep, making it easier to make decisions about whether you need to get to bed earlier or later. Garmin, for example, was able to tell me whether my sleep was calm, too short or non-restorative. Knowing that I didn’t sleep well the night before made me feel more motivated to wind down earlier the following evening.
Apple Watch Series 9 battery life

The Apple Watch Series 9 typically lasts between one to two days depending on how you’re using it. That’s about average for smartwatches in this price range, although watches from Fitbit and Garmin typically last for multiple days on a single charge. You’ll need the pricier Apple Watch Ultra 2, pictured above if you want longer battery life
When I didn’t exercise, track sleep or record outdoor walks, the Apple Watch Series 9 lasted for about two full days. But after a full day of use that included about 30 to 40 minutes of indoor exercise and an outdoor walk, plus overnight sleep tracking, the Series 9 had 35% of its battery left when I woke up in the morning. The Apple Watch Ultra 2 lasted for about two full days even after tracking GPS workouts and monitoring sleep, according to CNET’s testing.
Luckily, the Series 9 can charge fairly fast. It went from 35% to 92% after 30 minutes, which fit nicely with my morning routine. I left the watch on its charger while I got ready to head to the office, and the battery was almost full by the time I left.
Still, the Series 9’s battery life does limit its appeal as a sleep tracker compared to competitors. The Garmin Venu 3 lasted for about a week during my testing, for example, and the Oura ring usually lasts for about four days, according to my colleague Scott Stein who has worn it for months.
While Garmin and Oura’s devices may fall short in other areas compared to the Apple Watch, their relatively long battery life and deeper metrics may make them a better choice for those who prioritize sleep monitoring above all else in a wearable. Multi-day battery life makes it easier to track sleep without potentially having to sacrifice some activity tracking the next day.
Apple Watch Series 9 overall thoughts

As I wrote in my initial review, the Apple Watch Series 9 isn’t a big leap over the Series 8. If you have a recent Apple Watch, especially the Series 7 or Series 8, you can hold off on upgrading.
The subtle changes in the Series 9 set the Apple Watch up for a promising future. I’m still waiting for workout recovery metrics and more detailed sleep insights, but updates like Siri’s ability to answer health questions and Double Tap make it clear that there’s more in store for the Apple Watch beyond new health sensors.
Technologies
Scouts Can Now Earn a Merit Badge for AI
Scouting America has also created an AI chatbot to explain the requirements for the different merit badges.
Scouts are doing more than tying knots, building fires and learning first aid. Scouting America has added artificial intelligence and cybersecurity to its lineup of merit badges, keeping the 115-year-old organization in step with modern technology.
Scouting America is the youth organization that was known as Boy Scouts of America before 2019, when it changed its name to Scouts BSA and allowed girls to join all-girl troops. In February, the organization changed its name to Scouting America to reflect a more-inclusive philosophy.
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The AI merit badge «will introduce scouts to the fundamentals of AI and automation through hands-on activities and real-world examples,» according to Scouting America’s website, while the cybersecurity merit badge «equips Scouts with essential knowledge and skills to navigate and protect the digital world.»
While many of the merit badges seen on individual Scouts’ iconic sashes focus on hands-on experiences, often in the outdoors — such as fire safety and insect study — Scouting America says the new additions are relevant to modern life.
«Both badges focus on real-world practice, not just reading about technology,» Scouting America said in a statement. «The AI badge gets Scouts thinking about how to use technology responsibly. The cybersecurity badge teaches actual security skills along with safe online habits.»
Scouting America added another modern twist. The organization recently released an AI chatbot named Scoutly that can share the requirements for the various merit badges, among other tasks. Scouts can earn more than 130 badges in different subjects.
Scouting America is the largest scouting organization and one of the largest youth organizations in the United States, with over 1 million youth, including nearly 200,000 female participants.
Technologies
The Ultimate AI Wearable Is a Piece of Tech You Already Own
Commentary: Tech companies are trying to give us dedicated AI devices. There’s no need — we all have them already.
In some quarters, the rise of AI has sparked the urge to invent all-new devices, which are deeply invested in that technology but which look and function differently from any products we’ve owned before.
These range from head-mounted XR devices, such as headsets and glasses, to pins, necklaces, phone accessories and whatever mystery product former Apple designer Jony Ive and OpenAI are developing in secret.
But what if, in pursuit of these new devices, we overlook the fact that the ultimate AI form factor is something we all already own? It could even be that the best way to deploy AI is through tech that dates back to the 19th century.
I’m talking about headphones.
There hasn’t been a lack of evolution in personal audio over the years, but integrating AI into headphones is giving them a new lease on life, says Dino Bekis, vice president of wearables at chipmaker Qualcomm. We’re starting to see this with devices like Apple’s new AirPods Pro 3.
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The impact of AI on headphones will be twofold, says Bekis. First, it will build on improvements we’ve already seen, such as the ability to easily switch among active noise cancellation, transparency and other listening modes.
Instead of that being something we need to control manually, the headphones themselves will increasingly handle it all dynamically. Sensors on board, layered with AI, become more adept at reading and understanding our immediate surroundings.
Bekis says that maybe your headphones could alert you to someone trying to get your attention by recognizing your name being called, even if you’re listening to music with ANC enabled. If you’re on a call, walking along a busy street, they could alert you to traffic dangers, sirens or someone who might be walking close behind you.
But where he really sees AI headphones coming into their own is in the interactions you’ll have with AI agents. These personal assistant-like versions of artificial intelligence will operate autonomously with our devices and services on our behalf.
There’s no more «natural way» than conversation to interact with them, he says, and the high-quality mics and speakers in your headphones will allow for clear and effective communication.
«Earbuds or headphones are really yesterday’s technology that’s suddenly been reinvented and is becoming the primary way we’re going to be interfacing with agents moving forward,» says Bekis.
Headphone-makers, meet AI
Not all headphones are on the verge of transforming into wearable AI assistants, and the situation is not the same across the board. Many legacy headphone companies are «entrenched in their core focus of audio quality and audio file capability,» says Bekis.
At the same time, Bekis says Harman-owned high-end audio brand Mark Levinson is one headphone maker Qualcomm is working with on integrating AI into its products. And smartphone manufacturers who also have audio products in their lineup are at the forefront of the charge.
You only need to look at the new capabilities that Samsung, Google and Apple have bolstered their headphones with over the past few years. In addition to adaptive audio, the companies are starting to add AI-specific features. Google’s Pixel Buds 2 are engineered not just as an audio device but as hardware with the company’s Gemini AI assistant at the core (you could say «Hey, Google» to activate Gemini and ask it to summarize your emails, for example).
In September, Apple introduced AI-powered live translation with the AirPods Pro 3. The AirPods will parse what someone is saying to you and play it in your chosen language in your ear. They will also pick up your speech and translate it so that you can show the other person a transcript in their language on your phone screen.
Apple also seems to be searching for ways to further tap the AI potential of its headphones range. A report from Bloomberg earlier this month suggested that the company might introduce AI-powered infrared cameras with the next version of the AirPods Pro, which could be activated by and respond to gestures.
It’s clear that smartphone-makers can see the potential in headphones to be more than just audio products, in the same way they once recognized that the phone could be more than simply a device for making calls. They might even turn headphones and earbuds into what I think could be the ultimate AI wearable.
Why headphones?
The biggest argument for headphones over other emerging AI-focused wearable tech is their popularity: Who doesn’t own at least one pair? (My feeling is that everyone should own at least three different styles, each with its own strengths.) It’s just not the same with glasses or watches.
Yes, they are common and familiar, but the likelihood is that if you don’t already wear them regularly, the addition of AI is unlikely to persuade you. Glasses, in particular, have drawbacks, including battery life. There’s also the difficulty of combining the tech with prescription lenses and privacy concerns due to the addition of cameras.
After well over a decade of effort, tech companies are also still struggling to make smart glasses as sleek and comfortable to wear as their non-smart counterparts (the Meta Ray-Bans perhaps being the one exception to the rule here).
Smartwatches and fitness bands, meanwhile, have become more comfortable, but many people still find them cumbersome for sleeping. The sensors in them are too far away from our faces, where we receive the majority of our sensory inputs, to comprehend the world around us with forensic detail. They cannot relay sensory feedback to us without us having to look at a screen. The same is true for rings and other smart jewelry.
There are no devices that rival headphones, and earbuds in particular, for sheer proximity to a major sensory organ capable of both inputting and outputting complex sensory data. They have been and remain discreet, easy to take on and off, and not overly power hungry or demanding when it comes to charging frequency.
«Critically, there’s the social acceptance level of this as well, where, ultimately, headphones have become incredibly commonplace,» says CCS Insight Analyst Leo Gebbie.
They don’t insert a noticeable barrier between you and the world you’re experiencing. Plus, even when they’re obvious, they don’t tend to put people on edge over concerns you could be capturing their image, and you don’t need to learn how to use them, Gebbie says.
«Contrast that with something like smart glasses, where I think there is a whole new set of user behaviors that would need to be learned in terms of exactly how to interact with that device,» he says. «Also, there’s kind of a social contract, which, for me, at least with smart glasses, has always been one of the biggest stumbling blocks.»
What’s more, headphones have been getting gradually smarter all this time without most of us even noticing.
This invisible evolution is the closest tangible expression I’ve seen of the widespread belief among tech leaders that AI should be a subtle, ambient force that permeates our lives as inconspicuously as possible.
Headphones are an established product that shows consistent growth, making them the safest bet for companies that want as many people as possible to engage with AI through wearable tech.
Multiple forecasts, including from SNS Insider and Mordor Intelligence, estimate the global market for headphones will grow to over $100 billion by the early 2030s. By contrast, Mordor forecasts the smart glasses market will grow to $18.4 billion in the same period, one of the higher estimates I found.
Companies are always searching out new revenue streams, hence their determination to explore new kinds of AI devices, says Gebbie. But, he adds, «headphones definitely feel like a safer bet, because it’s a form factor that people are familiar with.»
It may well be the case that no single wearable device will define our coexistence with AI, and if there is, it will be a device of our choosing.
But rather than reinvent the wheel, I strongly suspect the companies embracing the potential of headphones will see these formerly audio-focused devices fly in the age of AI. And perhaps it’s just personal preference, but I’m on board.
Technologies
Phone Plugged in 24/7? Experts Reveal the Science Behind Battery Damage
Phone batteries degrade over time, but heat and use habits are a larger danger than keeping your phone plugged in.
There was a time when smartphone users were warned not to leave their phones plugged in for too long, or it could do damage to the battery. While modern smartphones now have overcharge protection that keeps them safe, many people still have questions about whether keeping their phone perpetually plugged in will damage the battery.
The short answer is no. Keeping your phone plugged in all the time won’t ruin your battery. Modern smartphones are built with smart charging systems that cut off or taper power once they’re full, preventing the kind of «overcharging damage» that was common in older devices. So if you’re leaving your iPhone or Android on the charger overnight, you can relax.
That said, «won’t ruin your battery» doesn’t mean it has no effect. Batteries naturally degrade with age and use, and how you charge plays a role in how fast that happens. Keeping a phone perpetually at 100% can add extra stress on the battery, especially when paired with heat, which is the real enemy of longevity.
Understanding when this matters (and when it doesn’t) can help you make small changes to extend your phone’s lifespan.
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The science behind battery wear
Battery health isn’t just about how many times you charge your phone. It’s about how it manages voltage, temperature and maintenance. Lithium-ion batteries age fastest when they’re exposed to extreme levels: 0% and 100%.
Keeping them near full charge for long stretches puts additional voltage stress on the cathode and electrolyte. That’s why many devices use «trickle charging» or temporarily pause at 100%, topping up only when needed.
Still, the biggest threat isn’t overcharging — it’s heat. When your phone is plugged in and running demanding apps, it produces heat that accelerates chemical wear inside the battery. If you’re gaming, streaming or charging on a hot day, that extra warmth does far more harm than leaving the cable plugged in overnight.
Apple’s take
Apple’s battery guide describes lithium-ion batteries as «consumable components» that naturally lose capacity over time. To slow that decline, iPhones use Optimized Battery Charging, which learns your daily routine and pauses charging at about 80% until just before you typically unplug, reducing time spent at high voltage.
Apple also advises keeping devices between 0 to 35 degrees Celsius (32 to 95 degrees Fahrenheit) and removing certain cases while charging to improve heat dissipation. You can read more on Apple’s official battery support page.
What Samsung (and other Android makers) do
Samsung offers a similar feature called Battery Protect, found in One UI’s battery and device care settings. When enabled, it caps charging at 85%, which helps reduce stress during long charging sessions.
Other Android makers like Google, OnePlus and Xiaomi include comparable options — often called Adaptive Charging, Optimized Charging or Battery Care — that dynamically slow power delivery or limit charge based on your habits. These systems make it safe to leave your phone plugged in for extended periods without fear of overcharging.
When constant charging can hurt
Even with these safeguards, some conditions can accelerate battery wear. As mentioned before, the most common culprit is high temperature. Even for a short period of time, leaving your phone charging in direct sunlight, in a car or under a pillow can push temperatures into unsafe zones.
Heavy use while charging, like gaming or 4K video editing, can also cause temperature spikes that degrade the battery faster. And cheap, uncertified cables or adapters may deliver unstable current that stresses cells. If your battery is already several years old, it’s naturally more sensitive to this kind of strain.
How to charge smarter
You don’t need to overhaul your habits but a few tweaks can help your battery age gracefully.
Start by turning on your phone’s built-in optimization tools: Optimized Battery Charging on iPhones, Battery Protect on Samsung devices and Adaptive Charging on Google Pixels. These systems learn your routine and adjust charging speed so your phone isn’t sitting at 100% all night.
Keep your phone cool while charging. According to Apple, phone batteries perform best between 62 and 72 degrees Fahrenheit (16 to 22 degrees Celsius). If your phone feels hot, remove its case or move it to a better-ventilated or shaded spot. Avoid tossing it under a pillow or too close to other electronics, like your laptop, and skip wireless chargers that trap heat overnight.
Use quality chargers and cables from your phone’s manufacturer or trusted brands. Those cheap «fast-charge» kits you find online often deliver inconsistent current, which can cause long-term issues.
Finally, don’t obsess over topping off. It’s perfectly fine to plug in your phone during the day for short bursts. Lithium-ion batteries actually prefer frequent, shallow charges rather than deep, full cycles. You don’t need to keep it between 20% and 80% all the time, but just avoid extremes when possible.
The bottom line
Keeping your phone plugged in overnight or on your desk all day won’t destroy its battery. That’s a leftover myth from a different era of tech. Modern phones are smart enough to protect themselves, and features like Optimized Battery Charging or Battery Protect do most of the heavy lifting for you.
Still, no battery lasts forever. The best way to slow the inevitable is to manage heat, use quality chargers and let your phone’s software do its job. Think of it less as «babying» your battery and more as charging with intention. A few mindful habits today can keep your phone running strong for years.
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