10 sensors that will most likely be included in Apple’s iWatch


Recent iWatch rumors have reported that Apple’s iWatch will boast 10 or more sensors, but many are left to wonder what those sensors are and what they will do. Seeing as 10 sensors is a lot to try and fit into a device so small, it will be interesting to see what Apple has up their sleeve. For now, we can almost guarantee that many, if not most, of the sensors will have to do with some type of motion tracking since Apple is expected to integrate health and fitness tracking into their new wearable.

TechHive asked Hamid Farzaneh, CEO of Sensoplex (a Silicon Valley company that designs and supplies sensors for the increasing wearables market), to speculate the most likely sensor candidates for Apple’s iWatch.

Most likely candidates


An accelerometer is a device that measures non-gravitational accelerations. To put this into perspective, on the iPhone there is an accelerometer, which is used to determine the iPhone’s physical position. The accelerometer can tell when the iPhone is tilted, rotated, or moved. Accelerometers can also measure body movement to track the steps you take and your sleep patterns.


A gyroscope is a device for measuring orientation and rotation. Gyroscopes can sense when you turn your wrist to look at your display, thus waking up your display.


Magnetometers are compasses and can be used to improve accuracy in motion tracking.

Barometric pressure sensor

The barometer can measure changes in altitude as well as provide the user with weather information and data. For a runner or cyclist, this sensor would come in handy for climbing hills and such.

Ambient temperature sensor

Ambient temperature could be compared to skin temperature to determining exertion levels and exercising patterns.

Other candidates

Heart rate monitor

This sensor does exactly what it says it does, measures your heart rate. This would better integrate Apple’s HealthKit into the much rumored wearable.

Oxymetry sensor

The oxymetry sensor measures blood oxygen, which records accurate pulse and heart rates.

Skin conductance sensor

This sensor measures how much you sweat and would aid in calculating exertion levels, and thus data on calories you’ve burned.

Skin temperature sensor

When you compare skin temperature to ambient temperature, you can get a better idea of your exercising patterns and exertion levels.


This is another quite obvious sensor that will likely be integrated into Apple’s iWatch.  Of course, the GPS would determine your current location as well as the location(s) you’re traveling to and the location(s) of where you’ve been.

What do you guys think? Do these proposed sensors sound probable for Apple’s iWatch? Let me know what you think in the comments section down below or give me a shout on Twitter – @malloriedeaton.

Source: TechHive

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  • Daryl Fortney

    I don’t think it would have a GPS. For one, GPS consumes a considerable amount of power to gain a fix especially without aiding. Without a cellular radio aiding is unlikely unless it is aided by the iPhone in which case what is the point of having 2 GPS in proximity? Sure there are some cases where it could get aiding from the phone and then be used without the phone alone to track your run for example but you would definitely need to recharge it after your run. All possible, just not sure it is worth it. GPS also takes up considerable space considering chip antenna etc.

  • iWatch is a smart watch project that Apple is reportedly aiming to launch with a special event in October of this year.