diff --git a/Komusou/KomusouApp.swift b/Komusou/KomusouApp.swift
index 175c4eb..6e7dede 100644
--- a/Komusou/KomusouApp.swift
+++ b/Komusou/KomusouApp.swift
@@ -9,10 +9,7 @@ import Combine
 import SwiftUI
 
 // TODO:
-// - Reconnecting to Peripherals https://developer.apple.com/library/archive/documentation/NetworkingInternetWeb/Conceptual/CoreBluetooth_concepts/BestPracticesForInteractingWithARemotePeripheralDevice/BestPracticesForInteractingWithARemotePeripheralDevice.html#//apple_ref/doc/uid/TP40013257-CH6-SW6
-//   - ユーザがセンサーを選ぶ画面を作る → ユーザが選んだセンサーがあればそれに接続する ということをすればそれぞれのセンサーを扱うクラスを安全に分離できそう
 // - Mac対応
-// - Bluetoothが有効にされていないときの対応
 // - i18n
 
 @main
diff --git a/Komusou/PlayView.swift b/Komusou/PlayView.swift
index 824d52d..80f2769 100644
--- a/Komusou/PlayView.swift
+++ b/Komusou/PlayView.swift
@@ -27,6 +27,12 @@ struct PlayView: View {
         .sheet(isPresented: $isSettingsPresented) {
             SettingsView()
         }
+//        .alert("Bluetoothを有効にしてください", isPresented: .constant(BluetoothManager.shared.isBluetoothEnabled)) {
+//            // TODO: 設定画面に飛ばす
+//            Button("OK") {
+//                print("TODO: 設定画面に飛ばす")
+//            }
+//        } message: {}
     }
 }
 
diff --git a/Komusou/Settings/SensorSettingView.swift b/Komusou/Settings/SensorSettingView.swift
index 369cd16..ed2409c 100644
--- a/Komusou/Settings/SensorSettingView.swift
+++ b/Komusou/Settings/SensorSettingView.swift
@@ -168,6 +168,9 @@ final class BluetoothManager: NSObject {
     static let shared = BluetoothManager()
     private static let kSavedSpeedSensorUUIDKey = "speed_sensor_uuid_key"
 
+    var isBluetoothEnabled: Bool {
+        centralManager.state == .poweredOn
+    }
     @Published
     private(set) var discoveredPeripherals = [UUID: CBPeripheral]()
 
@@ -194,16 +197,12 @@ final class BluetoothManager: NSObject {
     private var speedSensorPromise: ConnectingWithPeripheralFuture.Promise?
 
     private let centralManager = CBCentralManager()
-    private var isBluetoothEnabled: Bool {
-        centralManager.state == .poweredOn
-    }
     private var cancellables = Set<AnyCancellable>()
 
     override init() {
         super.init()
 
-        // TODO: 起動時の処理
-        // Bluetoothの許可の確認
+        // TODO: Bluetoothが有効にされているか確認する/ダイアログを出す
 
         centralManager.delegate = self