Specification of Apple Watch Ultra

Its case size is 49 mm with flat sapphire front crystal with edge protection.

Nearly 27% more screen area than Apple Watch SE with brightness 2,000 nits.

100m water resistant with Blood oxygen app and ECG app and emergency SOS with international calling.

Redesigned Compass with Cellular connectivity and battery backup up to 36 hours.

Pixel resolution is 502 x 410 at 338 ppi with OS 9.0.

Internal memory is 32GB with no camera and no card slot.

GPS available with dual-band A-GPS.

Colour available is only Titanium with wireless charging.

Price of Apple Watch Ultra is $799.