WEARABLES & DEVICES

Measure trends. Not your worth.

Understand what a device measures, what it estimates, and whether its feedback can support a useful daily habit.

What matters in a wearable

Compare comfort, battery life, subscription costs, data export, and privacy. A device you can wear consistently is often more useful than a longer feature list.

Read the signal carefully

Sleep stages, readiness, and energy expenditure are estimates. Use trends as context rather than treating a single score as a diagnosis or instruction.