Juli Clover:

Google Health (previously the Fitbit app) collects fitness, sleep, and wellness data from a connected wearable device. Steps, distance traveled, heart rate, sleep, and more can now be added to Apple Health. As noted on Reddit, some data such as HRV doesn't transfer over.

[…]

Syncing can be enabled after downloading the update by selecting Connections, choosing Apps and services, and then adding Apple Health.

My wife is a longtime Fitbit user. A few weeks ago, some family and friends started a friendly competition to see who could get the most steps. They’re all Fitbit users, too. Then she wanted to start comparing step counts with me, but I have an Apple Watch. I thought this would be no problem because the Health app has a sharing feature, and Fitbit and HealthKit have both been around forever. I was shocked to learn that there has never been any syncing. I don’t really understand the reason for this, as it seems like it would make the Fitbit more valuable.

It looks like the syncing part is now solved, but we still can’t automatically compare our steps. We’ve both tried inviting each other to share step counts and some other metrics multiple times over the last several weeks, and it has never worked. Either the invitation doesn’t arrive or the app just spins forever when trying to accept it.

Previously:

• Google Acquires Fitbit

O Google atualizou recentemente seu aplicativo Health no iOS para incluir suporte à sincronização completa de dados com o aplicativo Saúde (Health) da Apple, conforme notado pelo 9to5Google.

A novidade pode ser considerada uma expansão da sincronização limitada que já existia entre os dois aplicativos, e que permitia enviar dados já consolidados do aplicativo da Apple para o do Google — mas não o contrário.

Segundo o site, agora é possível compartilhar dados gravados com o Fitbit Air — como registros de exercícios, de sono e de passos — diretamente para o app da Maçã, sem usar qualquer gambiarra ou apelar para o registro manual.

Para isso, basta tocar no ícone de perfil dentro do app do Google, selecionar “Apps parceiros” e depois escolher o Apple Health entre as opções. Aí, é só conceder as permissões para a sincronização ser completada.

De acordo com o site Droid Life, no entanto, a sincronização ainda não funciona para a variabilidade da frequência cardíaca (HRV), uma vez que as duas empresas calculam essa métrica usando fórmulas diferentes.