PeteM

johnwhite1001 said:

So disappointing.  Apple had to make it so thin.  That means it has a much smaller battery than it could have had.  OLED screens typically have higher power demands.  In reality it will probably only get 6 hours or so.

mike1 said:

AppleInsider said:

The issue with Apple Watch Ultra is that it has no way of connecting to a transmitter. Bluetooth is used for countless accessories but isn't feasible for underwater use because it can't reliably travel through water.

Aqualung, Suunto, Mares, and Scubapro all use RF, while Garmin developed its own Subwave sonar system that is even more reliable. Neither of those options will work with the existing Apple Watch Ultra.

RF stands for Radio Frequency, therefore Bluetooth is also RF. What RF bands do the named devices use that allows them to work reliably under water?

 Dive Tank Pressure Gauges use 123Khz to send the signal to the dive computer. Bluetooth is 2.4Ghz. Doesn't travel well through water.

hcrefugee said:

PeteM said:

Will the new remote work with the old 4K Apple TV?

Per Apple website: "The Siri Remote (2nd generation) brings precise control to your Apple TV 4K and Apple TV HD" with no distinction being made between the new 4K/HD boxes and the 2017 4K and 2015 HD Apple TV boxes (at least not yet).