Just curious, except for possible sleep monitoring, why would you need it to go more then 24 hours?
I know you asked him but I’ll give my opinion:
Long airplane travel. Recently traveled to Europe and the trip can sometimes take more than 24 hrs with 1 or 2 stops.
Travel of any kind. Going to Disney. Arriving to hotel after some hours of travel. Oh, I better stay in the room for next hour or two since I have to charge my watch.
It doesn’t measure steps since you are charging it (and don’t tell me it’s charging fast as I just charged it from 20-100% and it took 1:40 hr)
GPS tracking can go only for 5 hours and that’s if you are fully charged. Let’s say you go hiking and travel 2-3 hours to wherever you are going. Now you are out of vehicle with 80-90% charge and you hike for 3-4 hours and your watch is dead and you are not even back to your vehicle.
The more cycle charges you complete the worst battery health it is. So, let’s say you keep it for 2 yrs and you already charged it more than 700 cycles. Battery will be now even worse.
Going on a short weekend trip and forgetting a charger. Now battery is dead.
As you mentioned, sleep tracking.
I really don’t understand how people don’t see a value in a longer battery life for any device. With iPhone is much easier since you can bring portable battery and
plug it in and use it while it’s charging. Not ideal but at least it works. Or, if driving you can plug it in the car charger. Now with watch that defeats the purpose of the watch as you can’t charge it while it’s on your wrist.
there are so many more reasons why battery should last way more than a day or two.
I also have Garmin 6 Pro Solar and the battery can last for 2-3 weeks easily but of course it doesn’t have fancy OLED display.