39 facts in comparison
Dustproof/water resistant at depth equal to or greater than 1 meter.
Resistance to sweat makes it ideal for use while doing sports.
The device has an electronic display to present information to the user.
128 x 128px
128 x 128px
Suunto 9 Baro
300 x 320px
Polar RCX3 GPS
GPS enables global positioning, useful in map, geo-tagging or navigation apps.
A heart rate monitor can help show your fitness levels, enabling you to calculate a suitable intensity of exercise.
An accelerometer is a sensor used to measure the linear acceleration of a device. A common application is detecting when a device changes between vertical and horizontal positions.
A cadence sensor measures the revolutions of the pedals on a bicycle. You can monitor your revolutions per minute, i.e. how fast you are pedalling.
It tracks how far you travel.
Your activity data is analysed to give you reports, available to view through the app or website. This allows you to see how active you have been and to help you make improvements.
With a route tracker you can add your route onto a map. It is helpful if you plan to do the same route again, or want to share it with your community.
Measuring pace shows how much time it takes to travel one kilometer or one mile. For example, in running, a 4 minute kilometer would be a very good pace.
Allows you to set your own goals, such as reaching 15,000 steps in a single day.
This is useful if you are on a strict training diet or if you are trying to lose weight. It can also help to boost your motivation.
The device syncs all of your data wirelessly, without the need for cables.
Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.
It is compatible with a range of Android devices such as smartphones and tablets.
It is compatible with a range of iOS devices such as iPhones, iPads and the iPod Touch.
It is compatible with Mac OS X devices such as MacBooks and iMacs.
It is compatible with PCs and laptops running the Windows operating system.
An indicator shows you when the device has low battery.
There is less chance that you will run out of battery during an adventure.
Suunto Ambit3 Peak Sapphire (HR)
With a long battery life, you can train for several hours a week and only have to recharge the device every few weeks.
Casio Pro Trek PRW2500T-7
The battery can be recharged and used over again.
Vibrating alerts have a variety of uses, such as interval training.
It can periodically download data on the future position of GPS satellites. This enables it to lock on much faster, so you don’t have to wait around to get a GPS fix.
The device detects when you have been idle for too long, and alerts you to encourage you to stay active.
Your tracking data is uploaded via your smartphone or computer, and is available to view on the manufacturer’s online portal in the form of reports and graphs.
With a stopwatch you can time yourself.
If you get a notification such as a call or message, the device will vibrate on your wrist or make a noise to alert you.
It supports third-party heart rate monitors to incorporate your pulse data.