Useful workout functions include an optical sensor for heart rate measurement, along with bearing, altitude/barometric pressure, and temperature sensors, and an accelerometer for step counting. These five sensors help to keep you in close touch with your current activity in real-time. The ability to receive GPS signals lets you access location information when you need it. When used in combination with the stopwatch, you can keep track of running information like distance, speed, pace, and more. The watch uses your heart rate and speed data to calculate a VO2max value, which is an indicator of your cardio-pulmonary capacity. This measurement is useful when trying to increase stamina for running and other activities. A phone app is available to help you configure watch settings and manage your training data.
You can monitor your current fitness level and training progress, and even automatically create a training plan based on targets specified by you. VO2max calculation and other data analysis capabilities use a library by FIRSTBEAT, a renowned sports science company.
Algorithms of improved accuracy support a higher level of training. The surface form of the back covers of these models reduces interference with the back of the hand, while a soft urethane band provides a better fit to the wrist. Bi-color molded buttons are designed for ease of use, while a high-definition MIP LCD makes display information more legible. Both USB and solar charging are supported, and solar charging can be used to power daily operations (except for pulse monitoring and GPS). Both of these models provide renowned G-SHOCK toughness along with new outdoor functions.
The watch uses an algorithm from FIRSTBEAT Technologies, a company with a reputation for advanced fitness data analysis. Highly accurate data analysis helps you get the most out of your training sessions.
Items measured using the FIRSTBEAT algorithm
• VO2max (fitness level)
• Training status
• Training load
• Recovery time
• Training effect
• Training plan
• Calories burned during training