Top stories published by Terra in 2022

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HRV: Comprehensive list of wearables that measure your heart rate variability

A range of wearables…

1 response

Kyriakos Eleftheriou in Terra

Jun 6, 2022

Who we are, and how it works

Many people are wondering what is happening at Terra. Here’s an overview…

2 responses

Ernest in Terra

Oct 18, 2022

Measuring HRV: SDNN and RMSSD

Understand how wearable devices measure HRV (e.g SDNN, RMSSD) to…

Jacob Bulbul in Terra

Oct 13, 2022

HRV Comparisons: Apple Watch vs. Oura Ring

After comparing average HRV readings during sleep between…

1 response

Terra API in Terra

Mar 31, 2022

Comprehensive list of all the wearable data that are available through APIs

HR, HRV, Pulse OX…

Jacob Bulbul in Terra

Aug 29, 2022

HRV comparison: Polar vs. Oura Ring 3

We continue to test the Polar and Oura Ring wearables, this time…

Kyriakos Eleftheriou in Terra

Nov 11, 2022

Team Spotlight: Introducing Ross

Every week we ask a Terra team member to let us know who they are. Here’s Ross:

Jacob Bulbul in Terra

Oct 31, 2022

Apple vs Oura: Sleep Stage Comparisons

After comparing sleep stage estimates for Oura and Polar, we…

Kyriakos Eleftheriou in Terra

Nov 1, 2022

Buy or build: Should you build integrations in house, or use Terra’s API

Jacob Bulbul in Terra

Sep 7, 2022

List of HR and HRV Measurement Frequencies for all Wearables

We compiled a list of wearables’…

1 response

2023

These were the top 10 stories published by Terra in 2022. You can also dive into monthly archives for 2022 by using the calendar at the top of this page.

About

Terra

TERRA is an API that makes it easy for apps to connect to wearables. We now have APIs, SDKs, and connect to all the wearables, such as WHOOP, Apple, OURA, Garmin and others. We are backed by Y-Combinator, General Catalyst and others.

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