Timex Ironman One GPS+
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.
These devices will not experience water damage, e.g. in the shower. Devices which can withstand more water pressure are better for swimming or diving.
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Polar RCX3 GPS
GPS enables global positioning, useful in map, geo-tagging or navigation apps.
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.
It tracks how far you travel.
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.
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.
Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.
RunKeeper is a popular app designed to help you track your fitness activities such as jogging. With a compatible fitness tracker you can sync data between the two services.
Devices which use cellular technology can connect to mobile networks. Cellular networks have much wider signal coverage than WiFi.
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 longer battery life, you don’t have to worry about charging the device as often.
Tech4o Traileader Jet
The battery can be recharged and used over again.
Vibrating alerts have a variety of uses, such as interval training.
You are awarded achievements for reaching goals, helping to encourage you and keep you motivated.
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.
With a stopwatch you can time yourself.
Garmin Fenix 5 42mm
It supports third-party heart rate monitors to incorporate your pulse data.
It can determine when you have stopped working out and pause your current workout tracking until you start moving again.
You can share your workout progress live, for example allowing your friends to see where you are on your running route.