# Your Fitness Tracker Has No Idea How Many Calories You’re Burning

> When I test smartwatches and fitness trackers, I place a particular emphasis on accuracy. Is my running pace correct? Does the device capture the ups and downs of my heart rate?

- **Source:** [Lifehacker](https://lifehacker.com/you-cant-trust-your-fitness-tracker-on-calorie-burn?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6ac4ef2d1b5e06c126858d0d)
- **Published:** 2026-10-06
- **Category:** Wearables
- **Tags:** #wearables #fitness #test #accuracy #burning #calories #idea #tracker
- **Canonical:** http://localhost:4321/a/6ac4ef2d1b5e06c126858d0d

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_GearOpen's distilled summary. The full original article is published at Lifehacker (source link above); GearOpen does not republish the source's full text._