Apple has opted to equip the iPhone 6 and 6 Plus with two separate accelerometers, as discovered in Chipworks' comprehensive iPhone 6 and 6 Plus teardown. There's a three-axis Bosch BMA280 accelerometer and what Chipworks believes is a MPU-6700 six-axis accelerometer from InvenSense.
According to Chipworks, Apple may have decided to incorporate two accelerometers into the iPhone 6 and 6 Plus to both minimize power consumption and "improve the overall user experience."
The InvenSense accelerometer has a range of functions, allowing it to operate in several different modes, but it can draw more power than the Bosch accelerometer due to its higher sensitivity. The maximum sensitivity of the InvenSense is at 16684 LSB/g, much higher than the Bosch's 4096.
The InvenSense device can operate as a six axis inertial sensor, or as either a three-axis gyroscope or a three-axis accelerometer. It is rated to consume 3.4 mA in the six-axis mode, 3.2 mA in the gyroscope mode and 450 µA in the accelerometer normal mode. By contrast, the Bosch device operates as a 3-axis accelerometer only and it consumes 130 µA of current in the accelerometer normal mode. Both devices offer two low power levels of operation for the accelerometer function. The InvenSense device actually consumes less current in its lowest power mode, with a 1 Hz update rate.
The main benefit of the InvenSense is full six-axis integration of the data by the on-chip digital motion processor (DMP). This will provide a direct benefit for gaming and other applications that need sophisticated inertial sensing capabilities. In addition the InvenSense provides significantly higher sensitivity than the Bosch device. The price however, is higher power consumption.
The Bosch accelerometer is able to operate at a lower power than the InvenSense and it has a "much faster" cold start up time, at 3ms compared to 30ms, allowing it to be used when complete six-axis integration is unnecessary. Chipworks speculates that it may be used for tasks where higher sensitivity is unneeded, perhaps for rotating the screen from landscape to portrait mode or for pedometer functionality.
According to Chipworks, the inclusion of two accelerometers in the iPhone 6 and 6 Plus is an example of Apple's "elegant engineering." A single InvenSense accelerometer would have enabled the device to work perfectly well, but the addition of the Bosch accelerometer allows for lower power consumption in the appropriate situations.
Sunday October 12, 2025 7:05 am PDT by Joe Rossignol
Apple plans to announce new products "this week," according to Bloomberg's Mark Gurman.
Apple's "Mac Your Calendars" teaser last October
In his Power On newsletter today, Gurman said the products set to be updated this week include the iPad Pro, Vision Pro, and "likely" the base 14-inch MacBook Pro, with all three likely to receive a spec bump with Apple's next-generation M5 chip.
Gurman...
Saturday October 11, 2025 6:59 pm PDT by Joe Rossignol
Apple's software engineers are internally testing iOS 26.0.2, according to MacRumors logs, which have been a reliable indicator of upcoming iOS versions.
iOS 26.0.2 will likely be a minor update that addresses bugs and/or security vulnerabilities, but we do not know any specific details yet.
The update will likely be released within the next few weeks.
Last month, Apple released iOS...
Monday October 13, 2025 8:25 am PDT by Eric Slivka
Buried in its announcement about "F1: The Movie" making its streaming debut on December 12, Apple has also announced that Apple TV+ is being rebranded as simply Apple TV.
A single line near the end of the press release states "Apple TV+ is now simply Apple TV, with a vibrant new identity," though Apple's website has yet to be updated with any changes, so we're unsure on the details of the...
Saturday October 11, 2025 10:10 am PDT by Joe Rossignol
While the iPhone 18 Pro and iPhone 18 Pro Max are still nearly a year away, a handful of new features and changes have already been rumored for the devices.
Below, we have recapped some of the early iPhone 18 Pro rumors so far.
Smaller Dynamic Island
The standard iPhone 18, iPhone 18 Pro, and iPhone 18 Pro Max will be equipped with a slightly smaller Dynamic Island, but the devices will...
Sunday October 12, 2025 9:24 am PDT by Joe Rossignol
After releasing AirPods Pro 3 last month, Apple is already working on the next AirPods Pro, according to Bloomberg's Mark Gurman.
It is unclear if the new AirPods Pro would be branded as AirPods Pro 4, or if they would be considered an updated version of AirPods Pro 3. Gurman did not take a position, opting to describe them as a "new version" of the "high-end in-ear buds."
AirPods Pro 2...
Tuesday October 14, 2025 11:59 am PDT by Juli Clover
Apple marketing chief Greg Joswiak today teased the launch of an upcoming product, saying "something powerful is coming" on social media.
Subscribe to the MacRumors YouTube channel for more videos.
A short animation accompanying Joswiak's teaser reveals a brief glimpse of a MacBook Pro along with the words "coming soon." The shape of the MacBook Pro is a V, which is the Roman numeral...
Wednesday October 15, 2025 6:07 am PDT by Joe Rossignol
Apple today updated the 14-inch MacBook Pro base model with its new M5 chip, which is also available in updated iPad Pro and Vision Pro models.
In addition, the base 14-inch MacBook Pro can now be configured with up to 4TB of storage on Apple's online store, whereas the previous model maxed out at 2TB. However, the maximum amount of unified RAM available for this model remains 32GB.
Like...
Apple today announced the next-generation iPad Pro, featuring the custom-designed M5, C1X, and N1 chips.
The M5 chip has up to a 10-core CPU, with four performance cores and six efficiency cores. It features a next-generation GPU with Neural Accelerator in each core, allowing the new iPad Pro to deliver up to 3.5x the AI performance than the previous model, and a third-generation ray-tracing ...
Sunday October 12, 2025 9:43 am PDT by Joe Rossignol
Apple's second-generation smart glasses with an in-lens display may have two modes, depending on which device they are connected to.
Meta Ray-Bans without an in-lens display
In his Power On newsletter today, Bloomberg's Mark Gurman said he was told a future version of Apple's smart glasses may be able to run a full version of the visionOS operating system when they are paired with a Mac, and...
OK, so I got the obvious, witty Android joke out of the way. Here's the real point:
A lot of people look at these devices being released every year with the sense that all these companies do (LG, Samsung, and others included) is slap the same old components on the inside and change the case or screen size. In reality, they are re-architecting a lot of the technology every year or two. This is not easy to do.
Only when we get tear downs and such do we get the full story of everything going on inside the shell. These guys are doing amazing work to move technology forward. The result is better devices and increased convenience/utility for the user.
The engineers that put this particular solution together aren't going to be recognized or win any awards, but they're doing great things.
