Apple Watch Ultra Comparison Workbench

Generational upgrade telemetry: Ultra 3 vs. Ultra 4

Source: @MacRumors
Upgrade Feature Weights (1 - 10) Adjust to match your usage profile
9/10
Multi-day GPS routing & low-power sleep
8/10
MicroLED 4,000-nit direct peak output
7/10
Bidirectional Iridium satellite data & dive sonar
6/10
Grade 5 forged titanium milling & profile
Hardware Architecture Matrix Ultra 3 vs. Ultra 4
Component Ultra 3 (Baseline) Ultra 4 (Gen Delta) Impact Rating
Display OLED LTPO3 (3,000 nits) MicroLED Matrix (4,200 nits) Major Delta (+40% Lumens)
SoC / SiP S10 Dual-Core (4nm) S11 3nm Neural Engine (On-device LLM) Minor Delta (+22% AI ops)
Battery Run 36h Standard / 72h Low Power 48h Standard / 96h Low Power Major Delta (+33% Field Life)
Connectivity LTE + Dual Freq GPS Satellite Messaging + Ultra-Wideband 3 Major Field Reliability
Chassis Weight 61.4g Titanium 58.2g Aerograde Titanium 5% Mass Reduction
Sensors Depth Gauge (40m) & Water Temp Extended Sonar Sub-gauge + Hydration Specialized Sports
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