Why does Apple Watch sync the exact Active Energy figure but not Garmin?

Apple Watch uses an algorithm in the background to deduct BMR (basal metabolic rate) calories automatically, before giving you a total active energy figure. On this basis we believe the active energy figure provided by Apple is accurate enough for us to pull the exact figure across into your Nutracheck diary.

Garmin calculates calories slightly differently. Any workouts or activities you do (e.g. a run, walk, swim) are pulled directly through from your Garmin. The calorie burn figure for these activities should match exactly what is recorded on your Garmin, however you might see a slight difference in the overall calorie burn figure. This is because Nutracheck makes an adjustment for your remaining step count i.e. steps you've taken not attributed to any tracked activities.

Nutracheck only counts calories burned once you've exceeded 2,500 steps – we assume most people take this number doing everyday activities. It is to avoid overestimating how many calories you've burned throughout the day (in your best interest for weight loss).

However if you'd prefer to use the calorie burn figure Garmin calculates, you can manually add this exact number – tap the blue menu button in your Diary > 'Manually Added' > 'Add New Exercise'.