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FuelWise™

Stay energized throughout your session with the FuelWise™ fueling assistant. FuelWise™ includes three features that remind you to refuel and help you maintain adequate energy levels during your long sessions. These features are Smart carbs reminder, Manual carbs reminder and Drink reminder.

It’s crucial for any serious endurance athlete to maintain adequate energy levels and stay hydrated throughout a long performance. To perform at your best, you need to fuel your system with carbohydrates and drink regularly in the course of a long race or a training session. With two useful tools, carbs reminder and drink reminder, FuelWise helps you find the optimal way to fuel and stay hydrated.

Carbohydrates are ideal for fueling because they can be absorbed and converted into glucose quickly, unlike fat or protein. Glucose is the primary source of energy used during training. The higher your training intensity, the more glucose you use in proportion to fat. If your session is shorter than 90 minutes, you don't usually need to fuel with carbs. However, extra carbs may help you stay more alert and focused even during a shorter session.

Training with Fuelwise

FuelWise™ is located in the main menu under Fueling, and consists of three types of reminders during training sessions. These are Smart carbs reminder, Manual carbs reminder and Drink reminder. The Smart carbs reminder calculates your refueling need from your estimated session intensity and duration taking your training background and physical details into account. The Manual carbs reminder and Drink reminder are time-based, which means you'll get a reminder at preset intervals, every 15 or 30 minutes for example.

When using any of the fueling features the training session is started from the Fueling menu. After setting your reminder and choosing Next , you'll be taken straight to the pre-training mode. Then choose your sport profile and start your session.

Smart carbs reminder

When using the smart carbs reminder, set the estimated session duration and intensity, and we'll estimate the amount of carbs you'll need for refueling during your session. When estimating your carbohydrate need for refueling we take your training background and physical settings including age, gender, height, weight, maximum heart rate, resting heart rate, VO2max, aerobic heart rate threshold and anaerobic heart rate threshold into account.

Your capability to absorb carbohydrates is estimated from your training background. This limits the maximum amount of carbohydrates (grams per hour) that the smart carbs reminder can give you. This data is used to pre-calculate the relationship between your heart rate and carbohydrate consumption rate based on your physical settings. The recommended carbohydrate intake rate is then adjusted up or down (within min/max limits) based on your heart rate data and the pre-calculated heart rate vs. carbohydrate consumption rate relationship.

During training, your watch will track your actual energy expenditure and adjust the frequency of the reminders accordingly but the portion size (carbs in grams) is always the same during a session.

Set smart carbs reminder

  1. In the main menu choose Fueling > Smart carbs reminder.
  2. Set the estimated duration of your session. The minimum is 30 minutes.
  3. Set the estimated intensity of your session. The intensity is set with heart rate zones. See heart rate zones to learn more about different training intensities.
  4. Set the carbs per serving (5 -100 grams) of your preferred sports fuel.
  5. Choose Next

After setting the reminder you'll see an overview of your selection. At this point you can still remove the reminder you just set or add a drink reminder. When you're ready to start your session choose Use now to go to pre-training mode.

When adding a drink reminder to a smart carbs reminder, you'll also get an estimation of your hydration need per reminder. This is based on the average sweat rate in moderate conditions

Take ( ) g carbs! is shown on the display including vibration and sound when it's time to take some carbs.

 

Manual carbs reminder

A time-based reminder that helps you stay fueled by reminding you to take some carbs at preset intervals. Can be set to remind you in 5 to 60-minute intervals.

Set manual carbs reminder

  1. In the main menu choose Fueling > Manual carbs reminder.

  2. Set the interval (5-60 minutes) of the reminder.

After setting the reminder you'll see an overview of your selection. At this point you can still remove the reminder you just set or add a drink reminder. When you're ready to start your session choose Use now to go to pre-training mode.

Take carbs! is shown on the display including vibration and sound when it's time to take some carbs.

Drink reminder

A time-based reminder that helps you stay hydrated by reminding you to drink. Can be set to remind you in 5 to 60-minute intervals.

Set drink reminder

  1. In the main menu choose Fueling > Drink reminder.

  2. Set the interval (5-60 minutes) of the reminder.

After setting the reminder you'll see an overview of your selection. At this point you can still remove the reminder you just set or add a carbs reminder. When you're ready to start your session choose Use now to go to pre-training mode.

Drink! is shown on the display including vibration and sound when it's time to drink.

Learn more about FuelWise™