Sensor hub

A sensor hub is a microcontroller unit/coprocessor/DSP that helps to integrate data from different sensors and process them.^[1] This technology can help off-load these jobs from a product's main central processing unit, thus saving battery consumption^[2] and providing a performance improvement.^[3]

Examples

Some devices with Snapdragon 800 series chips, including HTC One (M8), Sony Xperia Z1, LG G2, and on, have a sensor hub, the Qualcomm Snapdragon Sensor Core,^[4] and all HiSilicon Kirin 920 devices have sensor hub embedded in the chipset with its successor Kirin 925 integrated an i3 chip with same function into it.^[5] Some other devices that are not using these chips but with a sensor hub integrated are listed below:

Brands	Product	Chips
Apple	Apple iPhone 5s	Apple M7 NXP LPC18A1[6]
	Apple iPad Air
	iPad Mini (2nd generation)
	Apple iPhone 6	Apple M8
	Apple iPhone 6 Plus
Google	Nexus 6P	Android Sensor Hub
	Nexus 5X
Meizu	Meizu MX3	Atmel AVR UC3L microcontroller[7][8]
Microsoft	Microsoft Surface	Atmel's sensor hub[9]
Motorola	Motorola Droid Ultra	Motorola X8 Mobile Computing System[10] including TI MSP430 and TI C55x[11]
	Motorola Droid Maxx
	Motorola Droid Mini
	Motorola Moto X
Motorola Moto E 2nd Gen
Samsung	Samsung Galaxy Note II	Atmel AVR UC3L microcontroller[12]
	Samsung Galaxy S4	Atmel AVR microcontroller-based sensor hub solution[13]

References

1. "Atmel Sensor Hub MCU Helps Enhance Samsung Galaxy S4 User Experience, Battery Life". Mobilitytechzone.com. 2013-05-13. Retrieved 2013-09-29.
2. "iPhone 5S懂你"芯"：M7协处理器浅析-iPhone 5S,M7,协处理器,浅析-驱动之家". News.mydrivers.com. Retrieved 2013-09-29.
3. "Sensor Hub". Atmel.com. Retrieved 2013-09-29.
4. "Snapdragon Sensor Core | Qualcomm". 2013. Retrieved 16 July 2014.
5. http://www.usdaycarejobs.com/huaweis-new-phablet-gets-an-iphone-5s-like-fingerprint-reader.html
6. "Inside the iPhone 5s | Chipworks Blog". Chipworks.com. 2013-09-20. Retrieved 2013-09-29.
7. "详解 iPhone5s 的 M7 处理器_系统 - 我爱研发网_52RD.com - R&D大本营". 52rd.com. Retrieved 2013-09-29.
8. "领先iPhone5SM7协处理器与魅族SensorHub-MSN软件频道". Digital.msn.com.cn. 2013-09-12. Retrieved 2013-09-29.
9. "ITO/MCU皆可省　Atmel觸控方案打入Surface". Mem.com.tw. 2012-11-27. Retrieved 2013-09-29.
10. "Google's Motorola Confuses Everyone With Its 'X8 Computing System'". Forbes. Retrieved 2013-09-29.
11. "Moto X Review". AnandTech. Retrieved 2013-09-29.
12. "Samsung Selects Atmel's New Sensor Hub Solution for Galaxy Note II (NASDAQ:ATML)". Ir.atmel.com. 2012-11-26. Retrieved 2013-09-29.
13. "Samsung Selects Atmel's Low-power Sensor Hub MCU For Galaxy S4 For More Responsive End-User Experiences (NASDAQ:ATML)". Ir.atmel.com. 2013-05-13. Retrieved 2013-09-29.