The Apple Watch Series 12 and its big sibling, the Apple Watch Ultra 4, were the latest wearables announced alongside the iPhone Duo at Apple’s ‘Surprise and Shine’ event, and the array of new health features haven’t let me down.
Though I didn’t get the design upgrades I was hoping for (I wanted Apple to do a 180-degree turn and debut a completely fresh look for its watches), we got some smart new color options in the process. But that aside, the new monitoring tools do more than make up for the lack of visual upgrades — they’re smarter, insightful, and more personal than ever.
It’s hard to tell if all the new wellbeing tracking tools will be available for previous models — for anything powered by Apple Intelligence, it’s likely that these will remain native to the Series 12 and Ultra 4 — but we still think they’ll make for welcomed additions for health-conscious users.
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On-camera fitness testing
As part of the wider Health app revamp, health monitoring using the Apple Watch paired with the iPhone’s camera is a new feature, starting with full body assessments. The assessments allow the Health app to measure VO2 max — the the maximum amount of oxygen your body can use while exercising, a key measure of fitness — along with flexibility, strength, balance, and movement mechanics.
All you have to do is prop your iPhone vertically against a wall so that your whole body fits in the frame, and it will get you to follow a coach-guided workout. Apple says in order to measure VO2 max, you’ll need an Apple Watch, AirPods Pro 3, or a third-party heart rate sensing device.
Health Age
Apple is slightly behind on the Health Age feature — Garmin and Whoop got there first with Fitness Age and Whoop Age, respectively — but it’s finally coming to Apple Watch.
Health Age can be found under the new Longevity tab in the Health app, a hub for displaying deeper insights for different health topics including heart health, mental wellbeing, nutrition, and hearing health.
Your Health Age reading takes different aspects of your health profile into account and combines them into one score to show how your metrics compare to the average health and fitness level for your age and gender.
Health Sensing System
This is a technical upgrade to the Apple Watch itself, and a welcomed improvement to how the wearable reads your health data.
Both the Apple Watch Series 12 and the Apple Watch Ultra 4 come fitted with new LED sensor arrays designed for better skin contact, including a new heart-rate sensor for more accurate heart rate and heart rate variability (HRV) measurements — which helps to determine the new Readiness score, which we’ll discuss in a moment.
Under the new sensors are larger green LEDs, which now measure your heart rate up to every five seconds, all day long. Apple claims that it’s the most accurate heart rate measurement on any wearable, and it can back this up with testing results. We can’t wait to try it ourselves against an electrical heart rate monitor.
Readiness Score
Much like the Health Age metric, the new Readiness Score is a tool that’s been widely adopted by rival wearables in the past — and now it’s Apple’s turn.
Diving into your Vitals, Sleep Score, recent activity, and other metrics, you’ll be presented with a score from 0-10, along with a brief explanation to tell you if your watch thinks you need to pace yourself, or if you have the capacity to push yourself further.
It’s a clever and handy tool that could stop you from overtraining, or change your plans to fit in a long run on a day in which you’re ready for action. Readiness also updates multiple times a day as your Apple Watch gathers new data, telling you exactly what’s affecting your overall score.
Insights tab
The Health app’s new Insights tab looks very comprehensive. Throughout the day, Insights displays timely information about your health metrics including heart, sleep, readiness, fitness, vitals, and cycle tracking data.
It gives you short summaries about how different fitness categories are impacting your long-term health, while the ‚For You‘ section offers personalized recommendations and even relevant health articles based on your data.
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