Darth Vader
The Sith Lord's power derives from the Force, an energy field generated by all living things that certain individuals can manipulate to devastating effect. Vader's documented capabilities include telekinetic strangulation across vast distances, deflection of blaster fire, and the sensory perception of disturbances across galactic scales.
His administrative power proves equally formidable. As commander of the Imperial fleet, Vader oversees military assets capable of planetary annihilation. His authority to summarily execute underperforming officers creates what management theorists might term a highly motivated workforce.
iPhone
The iPhone's power manifests through more subtle mechanisms. Its A-series processors execute billions of operations per second, enabling computational feats that would have required building-sized machines mere decades ago. The device grants its wielder access to the combined knowledge of human civilisation, instantaneous global communication, and the ability to summon transportation and sustenance.
More insidiously, the iPhone exercises power over attention itself. Studies indicate users interact with their devices 2,617 times daily. This attention capture capability exceeds any Force power in terms of affected population size, if not dramatic visual appeal.