WeightRecord: Health Connect weight data

What Google says WeightRecord is

Captures the user's weight.

See Mass for supported units.

Quoted from Google’s WeightRecord Jetpack reference, last updated 2026-06-24, read 2026-10-03.

Class

androidx.health.connect.client.records.WeightRecord

Google's category

Body Measurement

Record type

Instantaneous

Unit class

none named in Google's table

Mandatory fields

metadatatimeweight

Added in (Jetpack)

1.1.0

Permissions

The exact strings Google’s data-types table declares for WeightRecord. Google’s page: “Before requesting any permissions, your app must declare them in the manifest.”

<uses-permission android:name="android.permission.health.READ_WEIGHT" />
<uses-permission android:name="android.permission.health.WRITE_WEIGHT" />

import androidx.health.connect.client.permission.HealthPermission
import androidx.health.connect.client.records.WeightRecord

val permissions = setOf(
    HealthPermission.getReadPermission(WeightRecord::class),
    HealthPermission.getWritePermission(WeightRecord::class),
)

The 4 fields of WeightRecord

Types and descriptions as Google’s reference prints them. The range column quotes Google’s own range annotation or sentence; a dash means Google states none, which is not the same as no validation.

Aggregate metrics

The AggregateMetric constants Google defines on WeightRecord. The value type is the T in Google’s AggregateMetric<T> signature. Every aggregate metric across all records.

Google’s read-data guide: “For cumulative types like StepsRecord, use aggregate() instead of readRecords() to avoid double counting from multiple sources and improve accuracy.” and “The aggregation API also contains logic to handle duplicate records, and lessens the chances of rate limiting.”

Read WeightRecord in Kotlin

The shape of Google’s own read example, with WeightRecord and its names filled in. Get the client with HealthConnectClient.getOrCreate(context) after checking getSdkStatus.

import androidx.health.connect.client.HealthConnectClient
import androidx.health.connect.client.records.WeightRecord
import androidx.health.connect.client.request.ReadRecordsRequest
import androidx.health.connect.client.time.TimeRangeFilter
import java.time.Instant

suspend fun readWeight(
    client: HealthConnectClient,
    startTime: Instant,
    endTime: Instant,
): List<WeightRecord> {
    val response = client.readRecords(
        ReadRecordsRequest(
            WeightRecord::class,
            timeRangeFilter = TimeRangeFilter.between(startTime, endTime),
        )
    )
    // One page of up to pageSize records (default 1000); follow
    // response.pageToken for the rest.
    return response.records
}

import androidx.health.connect.client.HealthConnectClient
import androidx.health.connect.client.records.WeightRecord
import androidx.health.connect.client.request.AggregateRequest
import androidx.health.connect.client.time.TimeRangeFilter
import java.time.Instant
import androidx.health.connect.client.units.Mass

suspend fun aggregateWeight(
    client: HealthConnectClient,
    startTime: Instant,
    endTime: Instant,
): Mass? {
    val response = client.aggregate(
        AggregateRequest(
            metrics = setOf(WeightRecord.WEIGHT_AVG),
            timeRangeFilter = TimeRangeFilter.between(startTime, endTime),
        )
    )
    // get() is declared as returning a nullable value.
    return response[WeightRecord.WEIGHT_AVG]
}

Setting up the client, the permission flow and Play Console declaration: integrating Health Connect step by step.

HealthKit counterpart

The metric on other platforms

This guide lists WeightRecord beside the types on the other platforms this site covers whose own descriptions name the same metric, each quoted, with how each one is read.

• Body Composition API: Weight, Body Fat, and Lean Mass Data

Questions

What permission does WeightRecord need?

Google's Health Connect data-types table (read 2026-10-03) declares android.permission.health.READ_WEIGHT for reading WeightRecord and android.permission.health.WRITE_WEIGHT for writing it, and says apps must declare permissions in the manifest before requesting them.

Which aggregate metrics does WeightRecord support?

Google's Jetpack reference defines 3 on WeightRecord: WEIGHT_AVG (AggregateMetric<Mass>), WEIGHT_MAX (AggregateMetric<Mass>) and WEIGHT_MIN (AggregateMetric<Mass>). Pass them in the metrics set of an AggregateRequest and read each back from the AggregationResult.

What values does WeightRecord.weight accept?

Google's reference types weight as Mass. Its description reads: "User's weight in kilograms. Required field. Valid range: 0-1000 kilograms."

Is WeightRecord an interval, instantaneous or series record?

Google's data-types table lists WeightRecord as Instantaneous, and defines that column as indicating "whether the data is recorded at an instant in time or over an interval". Its mandatory fields are metadata, time and weight.