diff --git a/services/identity/src/database/device_list.rs b/services/identity/src/database/device_list.rs
--- a/services/identity/src/database/device_list.rs
+++ b/services/identity/src/database/device_list.rs
@@ -3,7 +3,9 @@
 
 use std::collections::HashMap;
 
-use aws_sdk_dynamodb::{client::fluent_builders::Query, model::AttributeValue};
+use aws_sdk_dynamodb::{
+  client::fluent_builders::Query, model::AttributeValue, output::GetItemOutput,
+};
 use chrono::{DateTime, Utc};
 use tracing::{error, warn};
 
@@ -305,6 +307,30 @@
   }
 }
 
+/// Checks if given device exists on user's current device list
+pub async fn device_exists(
+  db: &crate::database::DatabaseClient,
+  user_id: impl Into<String>,
+  device_id: impl Into<String>,
+) -> Result<bool, Error> {
+  let GetItemOutput { item, .. } = db
+    .client
+    .get_item()
+    .table_name(devices_table::NAME)
+    .key(ATTR_USER_ID, AttributeValue::S(user_id.into()))
+    .key(ATTR_ITEM_ID, DeviceIDAttribute(device_id.into()).into())
+    // only fetch the primary key, we don't need the rest
+    .projection_expression(format!("{ATTR_USER_ID}, {ATTR_ITEM_ID}"))
+    .send()
+    .await
+    .map_err(|e| {
+      error!("Failed to check if device exists: {:?}", e);
+      Error::AwsSdk(e.into())
+    })?;
+
+  Ok(item.is_some())
+}
+
 /// Retrieves user's current devices and their full data
 pub async fn get_current_devices(
   db: &crate::database::DatabaseClient,