What You Need
Before diving into the setup steps below, make sure you have everything ready so you're not stopping mid-process to track something down:
- →An iPhone running iOS 17.6 or later (iPhone XS/XR and above)
- →A Samsung Galaxy Watch: this guide covers Galaxy Watch 4, 5, 6, and 7; other Wear OS watches follow the same process
- →An Android phone or tablet (optional) for the one-time watch-side app install: you can borrow one for the 5 minutes it takes, or skip Android entirely and let Lynio push the watch app over Bluetooth (see "Setting Up Without an Android Phone" further down)
- →The Lynio iPhone app, downloaded from the App Store
- →Bluetooth enabled on both your iPhone and your Galaxy Watch
None of these requirements are unusual, if you already own both devices, you likely have everything you need already, and the whole process below takes about five minutes end to end.
Step 1: Install Lynio on Your iPhone
Open the App Store on your iPhone, search for Lynio, and install it. When you first open the app you'll see a short, intuitive walkthrough of what it does: read at least the first two cards, as they explain what you're about to set up and make the rest of the process easier to follow.
This step takes under a minute, and you don't need to create an account or sign in to get started, you can move straight from the walkthrough into pairing your watch. If you've used a fitness or smartwatch companion app before, the layout will feel familiar: one home screen showing your connection status, with settings for notifications, health sync, and permissions all reachable from there.
Step 2: Install the Lynio Watch App on Your Galaxy Watch
This is the one step that uses an Android device: the Lynio watch-side companion installs through the Google Play Store, the same way you'd install any other watch app. On any Android phone or tablet, even one you only have brief access to:
- 1Open the Google Play Store
- 2Search for Lynio Watch
- 3Tap Install
- 4When prompted, select your Galaxy Watch from the list of connected devices
- 5Confirm the installation on your watch when it appears
The watch app installs in under a minute. Once it's on the watch, you won't need the Android device again, not for this setup and not for anything afterward, it existed purely to get the app onto the watch this one time.
Step 3: Put Your Galaxy Watch in Pairing Mode
With the watch app installed, the next step is making the watch discoverable so your iPhone can find it over Bluetooth. This whole step happens entirely on the watch itself, you won't need your iPhone in hand yet:
- 1Swipe down from the watch face to open the Quick Settings panel and confirm Bluetooth is enabled
- 2Open Settings on the watch
- 3Go to Connections → Bluetooth → Pair new device
Your watch is now discoverable and ready to pair with your iPhone. This screen will stay active for a couple of minutes, so there's no rush to complete the next step immediately, and if it times out, simply repeat these three taps to reopen it before moving on to the iPhone side of the pairing process.
Step 4: Pair in the Lynio iPhone App
With your watch discoverable, switch back to your iPhone to complete the actual pairing, this is the step where the two devices actually exchange the security handshake that keeps the connection encrypted going forward:
- 1Open the Lynio app and tap Connect a Watch
- 2Allow Lynio to access Bluetooth when prompted
- 3Lynio scans for nearby Wear OS devices: your Galaxy Watch should appear within a few seconds; tap its name
- 4A pairing code appears on both your iPhone screen and your watch face: confirm they match, then tap Pair on the watch
The connection is established: you'll see a green Connected badge in Lynio and on your watch screen. This confirmation means the Bluetooth handshake completed successfully on both sides.
Step 5: Grant Notification Permissions
For your iPhone notifications to appear on your Galaxy Watch, Lynio needs notification access. Tap Allow when Lynio prompts you after connecting, or go to iPhone Settings → Notifications → Lynio and enable Allow Notifications.
Once granted, every app you allow (Messages, WhatsApp, Gmail, Instagram, and the rest) mirrors to your Galaxy Watch in real time. You can fine-tune exactly which apps mirror to the watch from within Lynio's own settings afterward, so a busy group chat doesn't have to buzz your wrist all day if you'd rather it didn't. This same settings screen is also where you can later add or remove apps as your notification habits change, without repeating any part of the setup you just completed.
Step 6: Test the Connection
Before you consider setup finished, run through these three quick checks to confirm everything is actually working end to end:
- →Notifications: ask someone to send you a message, and it should appear on your watch within 2–3 seconds
- →Calls: have someone call your iPhone, and the incoming call should appear on your Galaxy Watch with the caller's name if they're in your contacts
- →Auto-reconnect: lock your iPhone, wait 30 seconds, and check your watch: the connection should remain active
If all three work, your setup is complete, and you can move on to everyday use without any further configuration. If any one of them doesn't, the troubleshooting section below covers the most common fixes for each specific symptom.
Setting Up Without an Android Phone
Option 1: Borrow an Android device. Any Android phone or tablet running Android 9 or above works. You only need it for the 5 minutes the watch app install takes: a friend's phone, an old device you have stored away, or a device at a phone shop all work.
Option 2: Let Lynio handle it directly. Lynio can push the watch-side app directly to your Galaxy Watch over Bluetooth, entirely from your iPhone, with no Android device involved at any point. Follow the in-app prompts and the watch app installs automatically. No emulator, no borrowed phone, no technical steps.
Either path leads to the exact same result: a Galaxy Watch fully paired with your iPhone. Which one you pick comes down to convenience, not capability, neither option is a compromise compared to the other.
Troubleshooting Common Setup Issues
Watch not appearing in the scan: confirm Bluetooth is enabled on both devices, press the side button to wake the watch, keep the iPhone and watch within 1 metre, then restart Lynio and scan again.
Pairing code doesn't match: tap Cancel on both devices and restart pairing from pairing mode. This usually happens when the watch sleeps mid-pairing: tap the screen to keep it awake.
Notifications not appearing on the watch: confirm notification permissions are granted in iPhone Settings → Notifications → Lynio, then open Lynio → App Notifications and check that the specific app is enabled on the watch side.
Connection drops when the iPhone screen locks: in iPhone Settings → Privacy & Security → Bluetooth, confirm Lynio has permanent Bluetooth access (not "While Using App"), and enable Background Connection in Lynio's settings if it isn't already on.
What Works After Setup
Once the six steps above are done, here's the full list of what actually runs through the connection day to day, this is the complete feature set, not a partial preview:
- →Phone calls: incoming iPhone calls route to your watch; answer and speak directly from the watch
- →Contact sync: your iPhone contacts appear on your watch so names display on calls
- →All app notifications: every notification you choose to allow mirrors to your watch
- →Live Activity: iPhone Live Activities reflected on your watch face
- →Auto-reconnect: a dropped connection re-establishes automatically when both devices are in range
- →Health data sync: steps, heart rate, and sleep data synced to Apple Health
- →Media playback control: control iPhone music and podcasts from your Galaxy Watch
- →Find My Phone: trigger an alert on your iPhone from your watch
All of this keeps working indefinitely, through iOS updates and Wear OS updates alike, with no need to redo any of the setup steps above.
Frequently Asked Questions
Does this work with Galaxy Watch 4, 5, 6, and 7?
Yes. Lynio works with all Samsung Galaxy Watch models running Wear OS 3.0 and above, which includes Galaxy Watch 4 through 7.
Does the connection use a lot of battery?
Lynio uses Bluetooth Low Energy (BLE) to maintain the connection, adding less than 3% additional battery drain per hour on your iPhone and less than 5% on your watch.
Do I need to reconnect every time?
No. You pair once, and Lynio reconnects automatically whenever your iPhone and Galaxy Watch are within Bluetooth range of each other.
Can I keep using my Galaxy Watch if I switch from Android to iPhone?
Yes. That's one of the most common use cases. After the one-time watch app install, you can use Lynio entirely from your new iPhone going forward.