Apple Watch Ultra 2

79eb7d6560b71405…

Marketing claim

12h

Blackout ETA

13.6h

Reality Gap

-13.0%

Risk

SAFE

Physics Breakdown

C_nom2100 mWh

C_thermal1383.12 mWh

C_eff816.81 mWh (38.9%)

α_cycle0.94

T_case12.09°C

P_total102 mW

Chemistryli-polymer

Displayamoled

Casesapphire-titanium

Physics-derived estimate under one fixed scenario. The model is calibrated but not yet independently validated against measured field runtime. Estimated hardware inputs are labeled as such. Full method at /methodology.