Retrieving Heart Rate Data from Sony Band SWR12

I am working on retrieving heart rate data from the Sony Band 2 (SWR12). I would like to do this using the Google Fit Sensors API. I followed the sample and tutorials by google here:https://github.com/googlesamples/android-fit/blob/master/BasicSensorsApi/app/src/main/AndroidManifest.xml

Having enabled the Fit API and created my Authentication token I can now read te device location.

However, when I change the data source to: .setDataTypes(DataType.AGGREGATE_HEART_RATE_SUMMARY) the app crashes.

Anyone that has previously worked with the Fit API and the Sony Band, please help me connect to the band.

I managed to record and read the grouped data with the following code:

private void suscribeDataFitness(){
    Fitness.RecordingApi.subscribe(mApiClient, DataType.AGGREGATE_HEART_RATE_SUMMARY)
            .setResultCallback(mSubscribeResultCallback);

}


private void readDataFitnessHistory()
{
    // Setting a start and end date using a range of 1 week before this moment.
    Calendar cal = Calendar.getInstance();
    Date now = new Date();
    cal.setTime(now);
    long endTime = cal.getTimeInMillis();

    cal.add(Calendar.DAY_OF_YEAR, -1);
    long startTime = cal.getTimeInMillis();

    java.text.DateFormat dateFormat = getDateInstance();
    Log.d(TAG, "Range Start: " + dateFormat.format(startTime) + " Millis : " + startTime);
    Log.d(TAG, "Range End: " + dateFormat.format(endTime)  + " Millis : " + endTime);

   final DataReadRequest readRequest = new DataReadRequest.Builder()
            //.read(DataType.TYPE_STEP_COUNT_DELTA)
            //.read(DataType.TYPE_HEART_RATE_BPM)
            //.read(ESTIMATED_STEP_DELTAS)
            .aggregate(DataType.AGGREGATE_HEART_RATE_SUMMARY)
            .enableServerQueries()
            .setTimeRange(startTime, endTime, TimeUnit.MILLISECONDS)
            .bucketByTime(1, TimeUnit.HOURS)
            .build();


    // Invoke the History API to fetch the data with the query and await the result of
    // the read request.
    DataReadResult dataReadResult =
            Fitness.HistoryApi.readData(mApiClient, readRequest).await(1, TimeUnit.MINUTES);
    showDataBuckets(dataReadResult);

}

final DataReadRequest readRequest = new DataReadRequest.Builder()
            //.read(DataType.TYPE_STEP_COUNT_DELTA)
            //.read(DataType.TYPE_HEART_RATE_BPM)
            //.read(ESTIMATED_STEP_DELTAS)
            .aggregate(DataType.AGGREGATE_HEART_RATE_SUMMARY)
            .enableServerQueries()
            .setTimeRange(startTime, endTime, TimeUnit.MILLISECONDS)
            .bucketByTime(1, TimeUnit.HOURS)
            .build();


private void showDataBuckets(DataReadResult dataReadResult) {
    //Used for aggregated data
    if (dataReadResult.getBuckets().size() > 0) {
        Log.d(TAG,"History: "+ "Number of buckets: " + dataReadResult.getBuckets().size());
        for (Bucket bucket : dataReadResult.getBuckets()) {
            List<DataSet> dataSets = bucket.getDataSets();
            for (DataSet dataSet : dataSets) {
                showDataSet(dataSet);
            }
        }
    }
}

I hope I can help you. A greeting