T vs ISRG Comparison

The wireless business contributes nearly 70% of AT&T's revenue. The company is the third-largest US wireless carrier, connecting 74 million postpaid and 17 million prepaid phone customers. Fixed-line enterprise services, which account for about 14% of revenue, include internet access, private networking, security, voice, and wholesale network capacity. Residential fixed-line services, about 12% of revenue, primarily consist of broadband internet access, serving 15 million customers. AT&T also has a sizable presence in Mexico, with 24 million customers, but this business only accounts for 3% of revenue. The company recently sold its 70% equity stake in satellite television provider DirecTV to its partner, private equity firm TPG.

Intuitive develops, produces, and markets a robotic system for assisting minimally invasive surgery. It also provides the instrumentation, disposable accessories, and warranty services for the system. The company has placed more than 10,000 da Vinci systems in hospitals worldwide, with more than 6,000 installations in the US and a growing number in emerging markets.