Apple Acquires Low-Power Wireless Chip Developer Passif Semiconductor
Apple has purchased Silicon Valley-based wireless chip developer Passif Semiconductor, reports technology writer Jessica Lessin. The company, which Apple has reportedly been after for several years, specializes in low-power communication chips that could be used to improve battery life in wearable devices such as Apple’s rumored iWatch.
Passif develops communication chips that use very little power. Its technology, which includes a radio that works with a low-energy version of Bluetooth called Bluetooth LE, is promising for health-monitoring and fitness devices that need extra-long battery life. (Apple, of course, is working on one of those.)
Apple has confirmed the acquisition, with Apple spokeswoman Amy Besette giving AllThingsD the following statement: "Apple buys smaller technology companies from time to time, and we generally do not discuss our purpose or plans."
According to rumors, battery life is one area where Apple has struggled in its iWatch development. A report in March suggested that the batteries in Apple’s iWatch prototypes were only lasting a couple of days, with the company targeting at least 4–5 days of battery life.
After trademarking the iWatch name in a number of countries, Apple has been pouring its resources into the smart watch in recent months. The company hired a number of new employees to join the iWatch team, including health sensor experts, as the iWatch is said to focus on health related applications and biosensors.
Passif's low-power chip technologies could also be used in other Apple products going forward, improving battery life across the board. In addition to Passif, Apple has acquired a number of other small companies in recent months, including Locationary and HopStop.
Popular Stories
Apple is planning to debut a high-end secondary version of AirPods Pro 3 this year, sitting in the lineup alongside the current model, reports suggest.
Back in September 2025, supply chain analyst Ming-Chi Kuo reported that Apple is planning to introduce a successor to the AirPods Pro 3 in 2026. This would be somewhat unusual since Apple normally waits around three years to make major...
iOS 27 is still many months away, but there are already plenty of rumors about new features that will be included in the software update.
The first beta of iOS 27 will be released during WWDC 2026 in June, and the update should be released to all users with a compatible iPhone in September.
Bloomberg's Mark Gurman said that iOS 27 will be similar to Mac OS X Snow Leopard, in the sense...
MacBook Pro availability is tightening on Apple's online store, with select configurations facing up to a two-month delivery timeframe in the United States.
A few 14-inch and 16-inch MacBook Pro configurations with an M4 Pro chip are not facing any shipping delay, but estimated delivery dates for many configurations with an M4 Max chip range from February 6 to February 24 or even later. At...
Over the last few months, rumors around the iPhone 18 Pro's front-panel design have been conflicted, with some supply-chain leaks pointing to under-display Face ID, reports suggesting a top-left hole-punch camera, and debate over whether the familiar Dynamic Island will shrink, shift, or disappear entirely.
Today, Weibo-based leaker Instant Digital shared new details that appear to clarify the ...
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another eight months, there are already plenty of rumors about the devices.
Below, we have recapped 12 features rumored for the iPhone 18 Pro models, as of January 2026:
The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras
Under-screen Face ID...
