We're not sure why Apple isn't offering those alerts, and it makes it hard to say whether the SPO2 meter is particularly useful as a result. You do need to get the gesture right though, and too often we found that Siri wasn’t in fact listening, which turns you off from using a voice assistant instantly, especially if other people can see you. That shouldn't put off prospective Watch owners who like the idea of a heart rate monitor on their wrist – it was as good as anything we've tested of late, bar some really high-end running watches; it's just that it still lost connection from time to time. ECG app is available on Apple Watch Series 4 and later (excluding Apple Watch SE) and can generate an ECG similar to a single-lead electrocardiogram. Intended for use by people 22 years old and over. It's lightweight too – at 36.5 grams (for the 44mm edition) we didn't feel it weighing down our wrist very often, and it's sometimes easy to forget you have it on.

M00J3B/A - APPLE Watch Series 6 - Blue Aluminium with Deep

But it feels odd that Apple isn't giving you notifications that your SPO2 dropped randomly through the night – which can signify the sometimes-serious condition of sleep apnea – or, advising you, when your heart rate gets lower or higher than usual at rest, whether you need to do something about it right away. The Apple Watch Series 6 has an always-on altimeter setting so a user can see elevation changes on a hike, for example, in real time. Users can measure their blood-oxygen saturation, which represents how much oxygen is carried by red blood cells from the lungs to the rest of the body, from the watch wherever they are. The Apple Watch Series 6 also features an ECG app that the company said can generate an ECG similar to an electrocardiogram. Apple Watch Ultra 2 has a water resistance rating of 100 metres under ISO standard 22810. It may be used for recreational scuba diving (with compatible third-party app from the App Store) to 40 metres and high-speed water sports. Apple Watch Ultra 2 should not be used for diving below 40 metres. Water resistance is not a permanent condition and can diminish over time. For additional information, see support.apple.com/en‑gb/HT205000. But... for the most part. According to the Health app on the phone, which records this information, there was a moment when our SPO2 level fell to 88% – was that something to worry about? We assumed that, because it wasn't repeated, it was just an outlier reading, but it was still a little disconcerting to see.Apple Watch SE has a water resistance rating of 50 meters under ISO standard 22810:2010. This means that it may be used for shallow-water activities like swimming in a pool or ocean. Apple Watch SE should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth. Water resistance is not a permanent condition and can diminish over time. For additional information see support.apple.com/en-us/HT205000.

Apple Watch Series 6: A cheat sheet | TechRepublic Apple Watch Series 6: A cheat sheet | TechRepublic

When you start a blood oxygen scan, you'll see a 15-second countdown timer on the screen along with a relaxing blue and red graphic. After 15 seconds, your blood oxygen saturation percentage will appear onscreen. You can also view blood oxygen measurements in the Health app on your iPhone.

Living with it

We want to wear the Watch 6 for everything, though, so it would be great if Apple equipped this device with a way to set up interval training, more easily see laps when you're trying to beat a mile PB, or just step up the Workouts app to encourage those who’ve been training with the Watch for years to go to the next level. However, while this is useful, we feel it's still not well-implemented. The always-on display is helpful at times, but mostly we just want to see the time. The problem is that, even though the screen of the Apple Watch 6 dims when it's not being looked at, it’s still rather bright. During its Time Flies event, Apple employees discussed how eco-friendly both the company and the watch are not just in terms of energy usage but in the materials that are used. The Apple Watch Series 6 is made with 100% recycled tungsten and does not contain these harmful chemicals: BFR, PVB, beryllium or mercury. Also, the Apple Watch Series 6 is made with arsenic-free glass. So it's not a new feature, but the question is how Apple is implementing it into the new watch, and whether it can be truly useful, especially when the world is facing a respiratory disease-based pandemic.