![]() ![]() So, I’m a little bit unclear as to what the battery life is with and without dual frequency or if the low-power mode needs to be used to get 12 hours of GPS time. If instead, the Apple Ultra owner used the lower quality reception, battery life would increase to, say, 14 hours but that’s still in low power mode without an always-on screen.Īgainst all of that, I’d point out that earlier Apple Watch models could get similar GPS battery lives provided that the display was mostly inactive, so there is some hope of better performances in some circumstances with a new battery or by fiddling around with various power-saving settings. ie by turning off the screen and using a chest strap. So let’s say that Apple has equated that time to its low-power, high-precision mode. So for Apple’s claim to be accurate, it needs to be based on a battery life of at least 12:35:00. ![]() Using the new low-power workout setting, most athletes can do a 2.4-mile swim, plus a 112-mile bike ride, and then run a marathon to complete a long-distance triathlon with *full precision GPS* and heart rate.įirst up the average Ironman completion time is 12:35:00. Of course, you can easily complete a marathon with battery life to spare. Here’s an extract from the transcript:įor endurance athletes, the bigger battery makes a big difference. Yet when Watch Ultra was launched in the keynote presentation, it was specifically stated that most people could complete an Ironman with full precision GPS. That definitely uses more battery juice, conservatively at least 10%. Here’s why.Īpple increases GPS accuracy with dual-frequency reception. ![]() That’s by the bye, the point is that if you don’t use a chest strap, the GPS battery life will definitely be less than 12 hours. And it gets worse as that figure is reduced to 10 hours with LTE.Īpple’s tests used a separate Bluetooth heart rate monitor, which is interesting as it finally lays to bed the conundrum of whether maintaining a BLE 5.3 connection was more efficient than using the internal oHRM. Apple definitely says in the specs that Apple Watch Ultra gives “Up to 12 hours outdoor workout with GPS”. Q: What? I thought Apple said it was 36 or 60 or whatever. So its star athlete from the announcement video, the ultra runner Ray Zahab, simply couldn’t use a Watch Ultra for his events like the 6-day Marathon des Sables over 156 miles without a nightly recharge. Apple Watch Ultra – the truth behind the battery claimsįor endurance athletes, the real claimed battery life of the Apple Watch Ultra is a mere 12 hours. ![]()
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