FunDo Pro is the free smartwatch companion app for SW, GT, GW and SH-series wearables. Track steps, sleep, heart rate, and receive phone notifications — 5M+ downloads.
Activity Tracking — 24/7 step count, distance walked, calories burned, and active time tracked from your smartwatch; set custom daily step goals and view activity distribution charts throughout the day
Sleep Monitoring — nightly sleep recording with deep sleep and light sleep breakdown; daily summaries and multi-week trend charts to understand your rest patterns over time
Heart Rate Monitoring — continuous or periodic heart rate readings from compatible watch sensors; daily time-series chart with average, minimum, and maximum values
7 Sports Modes — dedicated sport modes (running, walking, cycling, and more) for more precise workout tracking; keeps the screen active and accurately captures movement data during exercise sessions
Smart Notifications — mirror incoming calls, SMS messages, and app notifications (WhatsApp, Facebook, Instagram, and more) from your phone to the watch display in real time
Call & Contact Display — on supported watch models, view the phone contact book and recent call log directly on the watch screen
Music Playback Control — remotely control your phone's music player (play, pause, skip tracks) from the watch without taking out your phone
Remote Camera Shutter — use the smartwatch as a Bluetooth shutter button to take photos on your phone from a distance; ideal for selfies and group photos
Apple Health Integration (iOS) — sync step count data to and from Apple's HealthKit so your FunDo Pro steps appear in the Health app and can be shared with other fitness apps
Daily & Monthly Statistics — view historical step, sleep, and heart rate data in clear daily and monthly charts; trend analysis makes it easy to spot changes in your health over time
Exercise Goal Setting — set a personalized daily step goal; app tracks progress and visually displays how close you are to completing your daily activity target
Device Management — add, configure, and manage connected smartwatches; access device settings such as display preferences and notification filters from within the app
Bluetooth Connectivity — fast and reliable BLE pairing with supported wearables; auto-reconnect when the watch comes back within range of your phone
Multi-Platform Support — available for Android 4.3+ via Google Play and iOS 9.0+ via the App Store; compatible with iPhone and iPod touch
Free to Use — fully featured with no subscription or in-app purchases required; the core app is free for all users
Introduction
FunDo Pro is a free smartwatch companion application developed by Shenzhen Fenyun Technology Co., Ltd. (深圳市芬云科技有限公司) and available on both Google Play and the Apple App Store. With over 5 million downloads on Android alone, it is one of the most widely distributed companion apps for budget and mid-range smartwatches — particularly generic Bluetooth wearables sold without a dedicated brand app.
If your watch's packaging or setup screen points you to download FunDo Pro, this guide explains everything: how to connect, what features it offers, how to fix the common "illegal device" error, and how it compares to similar apps.
What Devices Are Compatible with FunDo Pro?
The FunDo Pro app supports a wide range of Bluetooth smartwatches and fitness bands. Compatible series officially listed by the developer include:
SW series (SW01, SW03, SW07, and related models)
GT series (GT08, GT09, GT68, and variants)
GW series (GW33, GW44, and related models)
SH series (SH07, SH08, and similar)
NX9, W808, Q08 — specific standalone models
No.1 DT series (DT36, DT79 — confirmed in YouTube setup tutorials)
This broad compatibility is a key selling point: many manufacturers bundle the FunDo Pro QR code with their watches because no dedicated brand app exists. If your watch shows a QR code during setup that links to "FunDo" or "FunDo Pro," this is the correct companion app.
How to confirm compatibility: Install FunDo Pro, tap "+" (Add Device), enable Bluetooth, and scan. If your watch appears in the results, it is supported.
Core Features of the FunDo Pro App
Activity Tracking
Technical Specifications
Android Package Namecom.kct.fundo.btnotification
App Store ID1225561876
Android Minimum VersionAndroid 4.3+
iOS Minimum VersioniOS 9.0 or later
App Size (iOS)243.7 MB
Current Version (iOS)1.8.5
Last Updated (iOS)May 20, 2022
Last Updated (Android)July 31, 2024
Google Play Downloads5M+
Google Play Rating2.8 / 5 (66.7K reviews)
App Store Rating2.6 / 5 (142 ratings)
Supported LanguagesEnglish and 20 more languages
In-App PurchasesNone — fully free
Platform SupportiOS 9.0+ (iPhone, iPod touch), Android 4.3+. Available worldwide.
What is FunDo Pro and which smartwatches does it support?
FunDo Pro is a free smartwatch companion app developed by Shenzhen Fenyun Technology Co., Ltd. and available on Google Play and the Apple App Store. It is the official pairing app for a wide range of budget Bluetooth smartwatches that use the Fenyun protocol. Officially supported series include: SW series, GT series, GW series, SH series, NX9, W808, and Q08. YouTube setup tutorials also confirm compatibility with No.1 DT36 and DT79 smartwatches, among others. If your watch shows a QR code during setup that points to FunDo or FunDo Pro, this is the correct app. To check compatibility: install the app, tap '+' to add a device, turn on Bluetooth, and scan — if your watch appears, it is supported.
How do I fix the FunDo Pro 'illegal device' error?
The 'illegal device' error is the most frequently reported issue in FunDo Pro and typically occurs after an app or firmware update. Steps to fix it: (1) Clear app cache and data: Settings → Apps → FunDo Pro → Storage → Clear Cache / Clear Data. (2) Uninstall the app, restart your phone, and reinstall from Google Play. (3) Factory reset your watch: go to Watch Settings → System → Reset (or long-press the power button for 10+ seconds). (4) If the problem persists, try downgrading to an older APK version (1.7.2 or 1.7.3 are reported to work) from a trusted source like Uptodown. (5) After any of these steps, re-pair the watch from scratch inside the app.
How do I connect FunDo Pro to my phone?
To connect FunDo Pro: (1) Install the app from Google Play or App Store. (2) Enable Bluetooth on your phone. On iPhone, accept any system-level Bluetooth pairing request from the watch. (3) Open FunDo Pro and grant permissions: Bluetooth, Location (required for BLE scanning on Android), SMS/Notifications (for push alerts), and Contacts (for call log on supported devices). (4) Tap the '+' or 'Add Device' button. (5) Select your watch from the scanned list or scan the QR code shown on your watch screen. (6) Wait for the initial sync to complete. If the connection is unstable on Android, go to Settings → Apps → FunDo Pro → Battery and set it to Unrestricted so the OS doesn't kill the app in the background.
Where can I download the FunDo Pro APK for older versions?
If you need an older version of FunDo Pro for Android — particularly to fix the 'illegal device' error — you can download APK files from trusted mirror sites. The most reliable sources are Uptodown (fundo-pro.en.uptodown.com/android) and APKPure (apkpure.com/fundo-pro/com.kct.fundo.btnotification). Version 1.7.2, 1.7.3, and 1.8.15 are commonly referenced by users as stable versions. Always download from reputable sites and scan the file with your antivirus before installing. Avoid random sites offering 'modded' or 'premium unlocked' versions, as these may contain malware.
Is FunDo Pro free? Are there in-app purchases?
Yes, FunDo Pro is completely free to download and use. There are no subscription fees, no premium tiers, and no in-app purchases listed in either the Google Play or App Store listings. All features — including step tracking, sleep monitoring, heart rate, notifications, music control, and camera remote — are available at no cost. This is one of the advantages of FunDo Pro over some competing apps that lock features behind a VIP membership.
Does FunDo Pro work with Apple Health?
Yes, on iOS the FunDo Pro app supports Apple HealthKit integration. This allows your step count data recorded by your FunDo-compatible watch to be synced to and from the Apple Health app. To enable it: after installing FunDo Pro on your iPhone, go to the iPhone Settings → Health → Apps → FunDo and allow the data types you want to share (steps, etc.). Note: the App Store listing confirms HealthKit support with the message 'This application supports access to iPhone health data.'
Why are my notifications not showing on my FunDo Pro watch?
If phone notifications are not reaching your watch: (1) Open FunDo Pro and go to Device Settings → App Notifications; make sure Notifications is enabled and the specific apps you want are turned on. (2) On Android, grant FunDo Pro notification access: Settings → Notification Access → FunDo Pro (enable). (3) Make sure Do Not Disturb is disabled on both the phone and the watch. (4) On Android, add FunDo Pro to the battery optimization whitelist (Settings → Apps → FunDo Pro → Battery → Unrestricted) so the OS doesn't kill the app in the background. (5) On iPhone, grant notification permission: Settings → Notifications → FunDo → Allow Notifications.
What is a good FunDo Pro alternative app?
The best FunDo Pro alternative depends on your specific smartwatch. Note: most smartwatch companion apps are not interchangeable — each only works with its own ecosystem of compatible devices. Common alternatives in the same budget wearable space include: Da Fit (by Mo Young Limited, 50M+ downloads, for CRREPA-protocol devices), VeryFitPro (by Shenzhen Airy Technology, for Bozlun/iWOWN-protocol watches), HryFine, and GloryFit. If your watch is no longer supported by FunDo Pro due to the 'illegal device' error, you may also try Gadgetbridge — an open-source Android app that supports many generic wearables without a cloud account. However, only use an alternative if your specific watch model is confirmed compatible.
Can I use FunDo Pro on a PC or Mac?
FunDo Pro does not have an official Windows or Mac desktop application. It is designed for Android (4.3+) and iOS (9.0+) smartphones. You can technically run FunDo Pro on a Windows PC using an Android emulator such as BlueStacks, but Bluetooth device pairing may not work correctly in a virtual environment. For full functionality, FunDo Pro should be used on a real Android or iOS phone. There is no official web app or browser-based version.
Why does FunDo Pro keep disconnecting or not syncing automatically?
Automatic sync issues are most commonly caused by the phone's battery optimization system killing the FunDo Pro background process. Fixes: (1) Android: Settings → Apps → FunDo Pro → Battery → set to Unrestricted. Also 'lock' FunDo Pro in your recent apps list so it stays running. (2) Make sure Bluetooth and Location are always enabled (Location is required for BLE scanning on Android even when just maintaining a connection on some phones). (3) Try toggling Bluetooth off and on to force reconnection. (4) Check your router/Wi-Fi isn't interfering (2.4 GHz Wi-Fi and Bluetooth share the same frequency band). (5) Update both the app and the watch firmware to the latest versions.
User Reviews
smileyy40
App Store
This app was ok when I first got the watch. I used to be able to see my text messages but now it tells me it's not currently supported, though everything else works fine. I'd like to be able to see my text messages again — hopefully an update brings that back. The steps and sleep tracking work as expected.
MarkInTX
Jenny_Runs
TravellingTom99
FitnessNewbie2023
Michael Oswald
Keith Jefferson
Sara_Wellness
ActiveDad_Ohio
PriyaFitLife
Changelog
v1.8.5 — May 20, 2022:
· Bug fixes and stability improvements
v1.8.4 — Feb 12, 2022:
· Fixed Bluetooth reconnection issues on Android 12
· Improved sleep data sync reliability
v1.8.3 — Nov 8, 2021:
· Added support for additional watch models in the SW series
· Fixed notification forwarding for WhatsApp on Android
· UI performance improvements
v1.8.2 — Aug 25, 2021:
· Improved heart rate chart display
· Fixed crash on app launch for some Android devices
· Better handling of Bluetooth permissions on Android 11
v1.8.1 — Jun 3, 2021:
· Fixed the "illegal device" error affecting some watch models after update
· Improved device pairing flow for new users
· Minor UI fixes
v1.8.0 — Mar 17, 2021:
· Added Apple HealthKit integration for step data sync (iOS)
· New sports mode selection interface
· Improved step count accuracy algorithm
· Fixed sleep tracking data gaps
v1.7.4 — Dec 9, 2020:
· Added support for GW series watches
· Improved camera remote shutter reliability
· Fixed music control not working on iOS 14
v1.7.3 — Sep 22, 2020:
· Stability improvements for long-running Bluetooth connections
· Fixed sleep data not uploading in some regions
· Improved UI translations for multiple languages
v1.7.2 — Jun 30, 2020:
· Fixed sync issues with heart rate data
· Improved notification forwarding for SMS on Android 10
· Performance optimization for older devices
v1.7.1 — Mar 11, 2020:
· Added monthly statistics view for steps and sleep
· Fixed calorie calculation discrepancy
· Improved Bluetooth pairing stability for SH series devices
v1.7.0 — Nov 5, 2019:
· Added 7 dedicated sports modes (running, walking, cycling, and more)
· New daily activity distribution chart
· Improved data reporting interface
· Fixed occasional app crash during data sync
Pricing InfoFunDo Pro is completely free with no in-app purchases, subscriptions, or premium tiers. All features including activity tracking, sleep monitoring, heart rate, notifications, music control, and camera remote are available at no cost.
Works well for basic fitness tracking. Steps and sleep data sync reliably once connected. The heart rate display is useful, and I appreciate that it integrates with Apple Health. My only complaint is that the app could use a design refresh — it feels a bit dated. But for a free app, the functionality is solid.
App Store
The app does what it says — tracks steps, sleep, and heart rate. I had some trouble connecting at first but once I followed the instructions in the app, it paired fine. The sports mode is a nice touch. I'd like better graphs and maybe a weekly summary, but for free it covers the basics.
App Store
I've been using this for about 6 months with my GT series watch. The step tracker is accurate and sleep data is helpful. Call notifications pop up on the watch reliably. Would like to see blood oxygen added in a future update. Overall happy with it as a free companion app.
App Store
Does the job for basic health tracking. I use it mainly for sleep and steps, both of which work well. The camera remote is a fun extra. Wish there were more watch faces and the UI could be more modern, but for a free app with no ads or subscriptions, I can't complain too much.
Google Play
It's an ok app. The biggest frustration is that it doesn't automatically sync itself with the watch — I have to manually hit the sync button or sleep data gets lost. Can't export data which is a shame. That said, steps track fine and notifications work. Would be a better app with auto-sync.
Google Play
The app always was a bit fussy to connect, but once connected it worked and worked well. The step counter and sleep tracking were reliable before the latest update introduced the 'illegal device' error. Fingers crossed the devs fix it soon. The core functionality when working is genuinely useful.
Google Play
Been using this with my SW series watch for almost a year. Steps, sleep stages, and heart rate all sync well. The app is simple but effective — no bloat, no ads, no paywalls. I particularly like the monthly trend charts. Occasional sync delays but nothing major.
Google Play
Good basic fitness app. Pairs with my GT-series watch without issues. Notifications from my phone come through to the watch reliably. Heart rate monitoring works as expected. The interface is a little dated but functional. Main wish: add Google Fit sync and automatic data sync.
Google Play
Very useful app for the price (free!). My GW series watch connects every morning and syncs sleep data automatically. I use the 7 sports modes for my runs and the data looks accurate. The camera remote shutter is a nice bonus feature. Would appreciate HealthKit on Android in the future.
Overall Rating
2.7
Google Play Downloads5M+
Version1.8.5
Size243.7 MB
Last Updated2024/07/31
Age Rating4+
Supported DevicesSW series (SW01, SW03, SW07), GT series (GT08, GT09, GT68), GW series (GW33, GW44), SH series (SH07, SH08), NX9, W808, Q08, No.1 DT36, No.1 DT79, and other compatible Bluetooth smartwatches using the Fenyun protocol. Check your watch QR code or documentation to confirm FunDo Pro compatibility.
Supported LanguagesEnglish, and 20 more languages including Chinese, French, Spanish, German, Portuguese, Italian, Arabic, Russian, Japanese, Korean
CompatibilityRequires iOS 9.0 or later (iPhone, iPod touch). Android 4.3+. Available worldwide.
Published date2026/03/12
FunDo Pro records your daily step count, estimates calories burned, measures walking distance, and tracks active time. Data is synced from the watch via Bluetooth and displayed in clear daily and monthly charts. Users can set a custom daily step goal and view activity distribution across the day to understand when they are most active.
Sleep Monitoring
The app logs your nightly sleep duration, separating data into deep sleep and light sleep phases. Sleep summaries are shown both for individual nights and as multi-week trend charts, making it easy to spot patterns or irregular nights.
Heart Rate Monitoring
For watches with an optical heart rate sensor, FunDo Pro collects heart rate readings throughout the day. The app displays a time-series chart of your heart rate and surfaces your average, minimum, and maximum readings, helping you understand your cardiovascular trends.
7 Sports Modes
FunDo Pro supports 7 dedicated sport modes (including running, walking, cycling, and more), which provide more accurate tracking during workout sessions and keep the display active through the workout.
Smart Notifications
Once connected and permissions are granted, FunDo Pro mirrors your phone's incoming calls, SMS messages, and third-party app notifications (WhatsApp, Facebook, Instagram, and more) to the watch display. On supported watch models, the app can also display the phone contact book and call log directly on the wrist.
Remote Controls
Music control — play, pause, and skip tracks on your phone from the watch
Remote camera shutter — use the watch as a Bluetooth shutter trigger to take photos from a distance
Apple Health Integration (iOS)
On iPhone, FunDo Pro supports HealthKit integration, allowing step count data to be read and written through the Apple Health app. This means your FunDo Pro steps can appear in Health and be used by other apps that rely on Apple Health data.
Enable Bluetooth on your smartphone — on iPhone, also allow system Bluetooth pairing if the watch requests it
Open FunDo Pro and grant required permissions: Bluetooth, Location (required for BLE scanning on Android), Notifications, SMS (for notification forwarding), and Contacts (for call logs on supported devices)
Tap the "+" or "Add Device" button on the home screen
Your phone will scan for nearby Bluetooth devices — select your watch from the list, or scan the QR code shown on the watch screen
Wait for the initial data sync to complete
Connection tip for Android: If FunDo Pro frequently disconnects in the background, go to Settings → Apps → FunDo Pro → Battery and set it to Unrestricted. Most connection problems are caused by the OS killing the app to save power.
How to Fix the FunDo Pro "Illegal Device" Error
The "illegal device" error is the most common issue reported by FunDo Pro users on Google Play. It typically appears after a firmware or app update and prevents the watch from connecting. Here are the recommended fixes:
Clear app cache and data: Go to Phone Settings → Apps → FunDo Pro → Storage → Clear Cache (and if needed, Clear Data)
Reinstall the app: Uninstall FunDo Pro, restart your phone, then reinstall from Google Play
Factory reset the watch: Navigate to Watch Settings → System → Reset (or long-press the power button for 10+ seconds)
Use an older APK version: Some users report that downgrading to version 1.7.2 or 1.7.3 resolves the illegal device error; APKs are available on Uptodown and APKPure
Check the developer note: The error sometimes occurs when the app update fails to recognize the watch's device ID — a full factory reset of the watch usually resolves it
FunDo Pro vs Similar Apps — Which Should You Use?
Feature
FunDo Pro
Da Fit
VeryFitPro
Developer
Shenzhen Fenyun
Mo Young
Shenzhen Airy
Downloads
5M+
50M+
10M+
Compatible watches
SW, GT, GW, SH series
Mo Young / CRREPA protocol
Bozlun / iWOWN protocol
Apple Health
✓
✓
✓
Sports modes
7
Multiple
Multiple
App Store rating
2.6★
4.7★
~4.0★
Bottom line: Only use FunDo Pro if your watch specifically requires it (i.e., the QR code on the watch or packaging links to FunDo Pro). These apps are not interchangeable — each works only with its own supported device ecosystem.
Privacy and Safety
FunDo Pro is published on both official app stores and is the legitimate companion app for many smartwatches. However, users should note:
Permissions: The app requests SMS, call log, contacts, location, and Bluetooth access. These permissions are needed for its core notification features. You can selectively grant only the permissions relevant to your use.
Data safety (Google Play): The developer indicates the app may share location and device IDs with third parties and that data is not encrypted at rest. Data cannot be deleted through the app.
Download only from official stores: APK files from unofficial third-party websites may contain modified or outdated versions. Use Google Play or the App Store whenever possible.
Privacy policy: The full privacy policy is available at fundo.xyz
Medical disclaimer: FunDo Pro is not a medical device. All health metrics (steps, heart rate, sleep) are for general wellness reference only and should not be used for clinical diagnosis or treatment decisions.
