Apple Watch Series 12 Packs Some Surprises You Might Not Expect

Something thrilling happens when you try out a new smartwatch for the first time. All you can think about is how this small thing can change your life. It will make everything easier for you, help you become more active and even tell you some information about yourself that you would not know without this little gadget. Yet there is one more important question to be asked. Is it worth buying?

That is exactly what I want to explore with the Apple Watch Series 12. A new Apple Watch always brings expectations, but I am more interested in what actually makes this one stand out. Is it a meaningful step forward or just another new model that makes the older one look less exciting? Before spending $399, I think it is worth looking beyond the hype and finding out what this watch really has to offer. So, let’s take a closer look at what the Apple Watch Series 12 brings to the table.

Specifications

Specification	Apple Watch Series 12
Sizes	42mm, 46mm
Processor	S11 chip, 4-core Neural Engine
Display	2000 nits, LTPO3 OLED
Durability	Ceramic Shield 2, 50m water, IP6X dust
Battery Life	24h mixed use, 10h workout
Charging	Fast charge (15 mins = 12h use)
Software	watchOS 27
Sensors	5-sec HR, HRV, ECG, SpO2, Wrist Temp
Health & Safety	Readiness Score, Sleep Apnea alerts, Crash/Fall detection
AI Features	Audio Intelligence, Siri Recap, Live Rewind
Connectivity	Precision L1 GPS, Bluetooth 5.3, Wi-Fi
Price	$399 (GPS), $499 (Cellular)

Apple Watch Series 12: What’s New?

At the very first glance when I unboxed this gadget, it was easy to realize that the design is familiar but much more refined. In terms of its features, Apple equipped it with an innovative S11 chip and redesigned the whole Health Sensing System. With this new hardware, I’ve seen that it monitors my heart rate and HRV much more often than ever.

What truly amazed me, however, is the addition of Readiness Score and Audio Intelligence capabilities. They are not some fancy features which were created to show off. These features actually impacted the way that I use the watch. In terms of the durability, it seems to be strong. I already tried to beat it with the door several times (of course by accident) and there is not even a scratch on it. However, is everything in this watch amazing? No, not at all and there are a few things worth considering before deciding whether it deserves a place on your wrist.

Design and Comfort: How Does It Feel on the Wrist?

As soon as I unboxed the new Apple Watch Series 12, I definitely did not believe my eyes. Since the overall look has not been changed much compared to the Apple Watch Series 11, it still maintains that typical curved rectangular design that everyone is familiar with. Yet, as soon as you try wearing the new Apple Watch Series 12, you will notice the premium differences. The Apple has present its new range in 42mm and 46mm sizes and as a person with average wrist sizes, I decided to go for the latter one. The additional display space is really convenient while reading text messages and monitoring your workout statistics, however, the smartwatch is not heavy at all. Additionally, the aluminum versions come with Ceramic Shield 2 front glass, which provides me with ultimate security because I am pretty clumsy and always hit my arm into the doorframe.

As far as daily wearability is concerned, comfort-wise, I can say this smartwatch can actually be rated as one of the best. In all the intense tests I carried out, the device proved almost weightless and I was able to write papers at my office and exercise in the gym without any friction whatsoever. This is also linked to the sport strap it comes with which is soft and breathable and so I did not get any kind of rash or itching after a very sweat-producing session at the gym. But let me be brutally honest, there is also a downside to this product. The lack of revolutionary design will disappoint those who wanted to show off to their friends with the newest fashion gadget from Apple. Still, the comfort and robustness of the product make its daily wearability perfect and particularly enjoyable when worn during sleep tracking.

Health Tracking: Is the Series 12 a Meaningful Upgrade?

As far as health is concerned, it is fair to say that the Apple Watch Series 12 proves itself. There are many different sensors installed on this watch, but how effective are they in real life?

Heart Rate Monitoring

It is something we are used to by now however, the Apple Watch Series 12 has raised the bar. Because of the new Health Sensing System, it takes background heart rate readings every 5 seconds. In my experience, the measurement intervals were amazingly accurate. No matter if I was on the couch measuring my resting heart rate or on the treadmill measuring my workout heart rate, the readings would become steady right away. I have configured both high and low heart-rate alerts for myself. Fortunately, no emergency alerts ever came through for me. However, knowing that there is always a background measurement taking place is very reassuring.

Heart Rate Variability (HRV) Tracking

Understanding HRV or heart rate variability has been quite tricky for me before, but with the help of the new Apple Watch series 12, things are a lot easier now. It helps determine the time between heartbeats, which is an accurate measure of recovery and stress. In the last few weeks, whenever I have been stressed because of work, my HRV has drastically dropped. The interpretation of this has helped me in figuring out when I needed to take a breath.

Readiness Score and Recovery Insights

This is the feature I have been waiting for. The Readiness Score on the Apple Watch Series 12 takes your sleep, heart rate variability and resting heart rate into account and gives you a score showing how well-recovered you are. When I tested this metric, I realized how accurately it works. Once on a Sunday, I was exhausted and my Apple Watch Series 12 displayed a low readiness score, which proved that I had to take a break that day. It is designed to help you estimate your readiness for daily tasks and training and let me tell you, it is really a game changer.

ECG and Heart Rhythm Notifications

Taking an ECG on your wrist still feels like living in the future. An ECG application on the Apple Watch Series 12 device is fast and easy to use. All I needed was to touch my finger to the Digital Crown and within 30 seconds, it provided the result of sinus rhythm readings. It is great that there are irregular rhythm alerts on the device, which help in the early diagnosis of possible heart problems. But remember that this device can detect only an irregular heartbeat and not a heart attack.

Blood Oxygen Monitoring

Another very important factor that you have to measure is your blood oxygen level, which can be measured effortlessly with the Apple Watch Series 12. These sensors will monitor your blood oxygen level in the background mode, particularly when you are sleeping. After analyzing my results through the Apple Health app, my levels were from 95% to 100% all the time. Of course, you need to find out whether this function has any geographical restrictions for your area, but if it is working, it performs perfectly.

Sleep Tracking and Sleep Stages

I have to say, I am not a big fan of wearing watches while sleeping. However, the Apple Watch Series 12 is so lightweight that it almost went unnoticed by me. The sleep analytics divides your sleep cycle into the different stages of sleep: Awake, REM, Core and Deep Sleep. Looking at my night metrics every day became part of my morning routine. With the help of the sleep trends chart from Apple Health, I found out that my Deep Sleep suffers from too much scrolling in the night time.

Sleep Apnea Notifications

Another one of the advanced functions is the sleep apnea notifications. Personally, I did not get any notifications during the testing period however, the Apple Watch Series 12 detects breathing problems using its accelerometer while you sleep at night. This function is very useful if you worry about the quality of your sleep. Just remember to find out if it works where you live.

Temperature Sensing and Women’s Health

While there is a lot of hype about using wrist temperature sensors to track periods and ovulation retrospectively, they are equally excellent at being a general health monitor for everyone. For me, as a male, the temperature sensing feature of Apple Watch Series 12 was an excellent way to measure my body temperature. One night when my wrist temperature rose slightly above my baseline temperature, I found myself down with a cold the very next day.

Fitness Tracking and Everyday Smartwatch Features

Workout Tracking and Supported Exercise Modes

As far as the fitness aspect is concerned, the Apple Watch Series 12 is a monster of a watch. It can handle numerous workout modes. I basically used it for weightlifting and high-intensity interval training (HIIT). It monitors time spent, active calories burned and the heart rate effortlessly. Activity metrics are quite accurate and it is great that the screen remains lit, so that one does not have to wave his hand too violently mid-workout to get to the rest timer.

GPS Tracking and Outdoor Workouts

The Apple Watch Series 12 really comes alive when going out for a jog in the open. It is able to pick up a GPS signal within moments. It was able to track my path, the distance, the pace and even the elevation. For someone who is simply jogging for fun, this is ideal. But if you are an extreme marathoner who wants multi-band GPS precision in a forest setting, then you would be better off with a Garmin watch.

Activity Rings and Daily Movement Tracking

The closing of the rings is still strangely addicting to do daily. The Move, Exercise and Stand challenges give me constant motivation. My Apple Watch Series 12 monitor my activity and keep encouraging me through the day. Looking at my activity trends gave me an idea that how inactive I have been on my office days, which led me to walk during meetings.

Training Load and Workout Intensity

The addition of the concept of Training Load will certainly be one that fitness enthusiasts will like. Training Load takes into account how hard you train and even the trends of your training intensity over time. Using the Apple Watch Series 12, I was able to easily see where I was overworking myself on my training load for the week.

Swimming and Water-Based Workout Tracking

It works well when it comes to swimming and tracking water exercises, although it does not provide anything revolutionary that would be different from the previous versions. The watch monitors your distance, strokes and number of rounds in the pool, this is what you can expect from a product of this kind that costs $399. In addition, the official water resistance rating is maintained when performing simple water exercises, but you should not use it in fast water activities. As a result, the integrated water lock clears the water out of the speakers.

Cycling and Other Endurance Workouts

Coming to cycling and other types of endurance exercises, the series 12 calculates conventional cycling statistics and works with Bluetooth accessories such as power meters. Since the watch is able to detect your activity automatically, it will remind you to log a workout if you fail to activate it yourself. Even though the watch is compatible with different sensors, you would get more informative visualization using cycling computers for the same price. Nevertheless, for simple training purposes it will be quite sufficient.

Audio Intelligence and Siri AI

Now let us focus on the magic of the software behind the Apple Watch Series 12: Audio Intelligence. The new S11 chip and watchOS 27 have brought some of the amazing features to Apple’s devices.

Firstly, there is Sound Recognition that allows your Apple Watch Series 12 to notify you about various critical sounds such as sirens, doorbells or even a baby crying. It is just an amazing accessibility feature.

And then, there’s Live Rewind. If you miss something the other person just said, double-clicking the Digital Crown on the Apple Watch Series 12 will show you the last 15 seconds of the conversation in the form of text. During my testing of this smartwatch, I have tried this particular feature when it was too noisy at work and didn’t need to ask my colleague to repeat himself. It’s like having a superpower.

Moreover, Siri Recap extracts the highlights of conversations. Some of the above-mentioned features may seem a bit creepy, but Apple uses Secure Enclave on the Apple Watch Series 12 to guarantee that all the audio processing takes place instantaneously and that the data is deleted for your protection. If you want to get into more detail about how these features work, read our article on Apple Watch Audio Intelligence Explained.

You might be wondering then whether these features are absolutely necessary? Probably not. One of the disadvantages of the Apple Watch Series 12 is that these AI features could sometimes be perceived as a mere gimmick and not as an indispensable part of your daily life, but that certainly makes this watch next-generation.

Battery Life and Charging

Well, let’s talk about the elephant in the room. There is one thing that keeps the Apple Watch Series 12 from being outstanding and that is its battery life. The company states that the watch has up to 24 hours of battery life, which is okay but still means that you need to recharge it daily. In case you use the GPS tracking and streaming of your favorite music in addition to Cellular usage, the battery will be drained even more quickly. The Apple Watch Series 12 has up to 10 hours of exercise tracking, which is 25% better than the previous version, but is still not as good as the battery life of Garmin.

But the fast charging saves the day. While testing this Apple Watch, I noticed that when I place it on the charger after a shower, it becomes sufficient to make it last for the rest of the day. A 15-minute fast charge provides power for up to 12 hours of use and a 5-minute fast charge is enough for 10 hours of sleep monitoring. I only wish that the Apple Watch Series 12 lasted for 2 days.

Is the Apple Watch Series 12 the Best Smartwatch for iPhone Users?

After trying the Apple Watch Series 12 for quite some time now, I can tell you that it is still an undisputed king of the Apple family. It works flawlessly when paired with the iPhone. The Readiness Score makes it an even more useful partner to your body, while Audio Intelligence is a truly fun and future feature to use.

But remember, I said I will be honest about the downsides. The Apple Watch Series 12 still has its daily battery anxiety issue and the design has not changed much from its predecessors. For those of you who like mountain climbing during weekends or marathons, the Apple Watch Ultra 4 or one of our Apple Watch Alternatives for iPhone is probably the right choice for you.

But for the average consumer interested in getting a gorgeous display, smooth integration of applications, the highest level of health tracking and a watch that simply pairs perfectly with their smartphone? Apple Watch Series 12 definitely deserves your attention. It is an awesome combination of technology and comfort. For those who wonder how it compares with other options available on the market, have a look at the Best Smartwatches in 2026.

And in conclusion, Apple Watch Series 12 combines everything that is great about Apple products into a single item and improves everything. It is blazingly fast, provides you with the highest level of health tracking and integrates seamlessly with your iPhone. While it is not a perfect product, in search of an everyday smartwatch, Apple Watch Series 12 is definitely the best choice for iPhone owners.

Who Should Buy the Apple Watch Series 12?

You should buy the Apple Watch Series 12 if:

• You want advanced health tracking, including heart rate, HRV, ECG and sleep insights.
• You want the new Readiness Score to help you understand your recovery and daily activity.
• You regularly run, cycle, swim or track other workouts.
• You use an iPhone and want seamless integration with Apple apps and services.
• You want a premium smartwatch with a bright display and useful everyday features.

Who Should Avoid the Apple Watch Series 12?

You should avoid the Apple Watch Series 12 if:

• You already own a recent Apple Watch and do not need its new features.
• You want multi-day battery life without frequent charging.
• You use an Android phone, as the Apple Watch requires a compatible iPhone.
• You only need basic step counting, notifications and workout tracking.
• You are looking for a more affordable smartwatch or prioritise long battery life over advanced health features.

Wrap Up

There is a great number of advantages that the Apple Watch Series 12 has to offer to those users who are into health tracking, workouts and need the features of their iPhones directly at hand. However, it is important to mention that this watch may be rather expensive and its battery will require daily charging. 

In my opinion, the most important thing to consider here is whether or not the user will use the new functions that are offered by the Apple Watch. In case the user is buying an Apple Watch for the first time, he/she should think about purchasing the Series 12. However, if the user already has a relatively new Apple Watch, he/she may want to reconsider this choice.

FAQs