diff --git a/fastpair/internal/fast_pair_seeker_impl.cc b/fastpair/internal/fast_pair_seeker_impl.cc
index 41c1e9ad..d0496bd4 100644
--- a/fastpair/internal/fast_pair_seeker_impl.cc
+++ b/fastpair/internal/fast_pair_seeker_impl.cc
@@ -51,7 +51,7 @@ FastPairSeekerImpl::FastPairSeekerImpl(ServiceCallbacks callbacks,
   pairer_broker_->AddObserver(this);
   mediums_.GetBluetoothClassic().AddObserver(this);
   retro_detector_ = std::make_unique<RetroactivePairingDetectorImpl>(
-      mediums_, devices, executor);
+      mediums_, devices, account_manager_, executor);
   retro_detector_->AddObserver(this);
 }
 
diff --git a/fastpair/internal/fast_pair_seeker_impl_test.cc b/fastpair/internal/fast_pair_seeker_impl_test.cc
index d77c6cf4..9957265c 100644
--- a/fastpair/internal/fast_pair_seeker_impl_test.cc
+++ b/fastpair/internal/fast_pair_seeker_impl_test.cc
@@ -22,8 +22,6 @@
 #include "gmock/gmock.h"
 #include "protobuf-matchers/protocol-buffer-matchers.h"
 #include "gtest/gtest.h"
-#include "absl/time/clock.h"
-#include "absl/time/time.h"
 #include "fastpair/common/fast_pair_prefs.h"
 #include "fastpair/fast_pair_events.h"
 #include "fastpair/fast_pair_seeker.h"
@@ -76,6 +74,8 @@ class FastPairSeekerImplTest : public testing::Test {
     NEARBY_LOG_SET_SEVERITY(VERBOSE);
     repository_ = FakeFastPairRepository::Create(
         kModelId, absl::HexStringToBytes(kBobPublicKey));
+    repository_->SetResultOfIsDeviceSavedToAccount(
+        absl::NotFoundError("not found"));
     account_manager_ = std::make_unique<FakeAccountManager>(
         preferences_manager_.get(), prefs::kNearbyFastPairUsersName,
         authentication_manager_.get(), task_runner_.get());
diff --git a/fastpair/retroactive/BUILD b/fastpair/retroactive/BUILD
index ec1f012c..33884bf9 100644
--- a/fastpair/retroactive/BUILD
+++ b/fastpair/retroactive/BUILD
@@ -36,7 +36,9 @@ cc_library(
         "//fastpair/internal/mediums",
         "//fastpair/message_stream",
         "//fastpair/pairing",
+        "//fastpair/repository",
         "//fastpair/repository:device_repository",
+        "//internal/account",
         "//internal/base",
         "//internal/platform:comm",
         "//internal/platform:types",
diff --git a/fastpair/retroactive/retroactive_pairing_detector_impl.cc b/fastpair/retroactive/retroactive_pairing_detector_impl.cc
index 4aae90c5..7a104b94 100644
--- a/fastpair/retroactive/retroactive_pairing_detector_impl.cc
+++ b/fastpair/retroactive/retroactive_pairing_detector_impl.cc
@@ -17,18 +17,23 @@
 #include <ios>
 #include <memory>
 #include <optional>
+#include <string>
 #include <utility>
 
 #include "fastpair/internal/mediums/mediums.h"
-#include "fastpair/pairing/pairer_broker.h"
+#include "fastpair/repository/fast_pair_repository.h"
+#include "internal/account/account_manager.h"
 
 namespace nearby {
 namespace fastpair {
 
 RetroactivePairingDetectorImpl::RetroactivePairingDetectorImpl(
     Mediums& mediums, FastPairDeviceRepository* repository,
-    SingleThreadExecutor* executor)
-    : mediums_(mediums), repository_(repository), executor_(executor) {
+    AccountManager* account_manager, SingleThreadExecutor* executor)
+    : mediums_(mediums),
+      repository_(repository),
+      account_manager_(account_manager),
+      executor_(executor) {
   mediums_.GetBluetoothClassic().AddObserver(this);
   mediums_.GetBluetoothClassic().StartDiscovery();
 }
@@ -75,15 +80,33 @@ void RetroactivePairingDetectorImpl::DevicePairedChanged(
   // first check if it has already been saved to the user's account. If it has
   // already been saved, we don't want to prompt the user to save a device
   // again.
-  // TODO(b/285047010): check if device has already been saved to the user's
-  // account
+  if (!account_manager_->GetCurrentAccount().has_value()) {
+    NEARBY_LOGS(INFO) << __func__ << ": Ignoring because no logged in user.";
+    return;
+  }
 
+  FastPairRepository::Get()->IsDeviceSavedToAccount(
+      device.GetMacAddress(),
+      [this, mac_address = device.GetMacAddress()](absl::Status status) {
+        if (status.ok()) {
+          NEARBY_LOGS(VERBOSE) << __func__
+                               << ": Ignoring because device is already saved "
+                                  "to the current account.";
+          return;
+        }
+        NotifyRetroactiveDeviceFound(mac_address);
+      });
+}
+
+void RetroactivePairingDetectorImpl::NotifyRetroactiveDeviceFound(
+    absl::string_view mac_address) {
+  NEARBY_LOGS(VERBOSE) << __func__ << ": mac_address = " << mac_address;
   auto fast_pair_device =
       std::make_unique<FastPairDevice>(Protocol::kFastPairRetroactivePairing);
-  fast_pair_device->SetPublicAddress(device.GetMacAddress());
+  fast_pair_device->SetPublicAddress(mac_address);
   repository_->AddDevice(std::move(fast_pair_device));
   executor_->Execute("notify-retro-candidate",
-                     [this, address = device.GetMacAddress()]() {
+                     [this, address = std::string(mac_address)]() {
                        std::optional<FastPairDevice*> fast_pair_device =
                            repository_->FindDevice(address);
                        if (!fast_pair_device) return;
diff --git a/fastpair/retroactive/retroactive_pairing_detector_impl.h b/fastpair/retroactive/retroactive_pairing_detector_impl.h
index a24d0617..7c876f86 100644
--- a/fastpair/retroactive/retroactive_pairing_detector_impl.h
+++ b/fastpair/retroactive/retroactive_pairing_detector_impl.h
@@ -14,13 +14,12 @@
 
 #ifndef THIRD_PARTY_NEARBY_FASTPAIR_RETROACTIVE_RETROACTIVE_PAIRING_DETECTOR_IMPL_H_
 #define THIRD_PARTY_NEARBY_FASTPAIR_RETROACTIVE_RETROACTIVE_PAIRING_DETECTOR_IMPL_H_
-#include <string>
 
-#include "absl/container/flat_hash_set.h"
+#include "absl/strings/string_view.h"
 #include "fastpair/internal/mediums/mediums.h"
-#include "fastpair/pairing/pairer_broker.h"
 #include "fastpair/repository/fast_pair_device_repository.h"
 #include "fastpair/retroactive/retroactive_pairing_detector.h"
+#include "internal/account/account_manager.h"
 #include "internal/base/observer_list.h"
 #include "internal/platform/bluetooth_classic.h"
 #include "internal/platform/single_thread_executor.h"
@@ -34,6 +33,7 @@ class RetroactivePairingDetectorImpl
  public:
   RetroactivePairingDetectorImpl(Mediums& mediums,
                                  FastPairDeviceRepository* repository,
+                                 AccountManager* account_manager,
                                  SingleThreadExecutor* executor);
   RetroactivePairingDetectorImpl(const RetroactivePairingDetectorImpl&) =
       delete;
@@ -50,9 +50,11 @@ class RetroactivePairingDetectorImpl
                            bool new_paired_status) override;
 
  private:
+  void NotifyRetroactiveDeviceFound(absl::string_view mac_address);
   Mediums& mediums_;
   ObserverList<RetroactivePairingDetector::Observer> observers_;
   FastPairDeviceRepository* repository_;
+  AccountManager* account_manager_;
   SingleThreadExecutor* executor_;
 };