Does the WaterGuru App work with Apple Watch?

Yes. The WaterGuru App works with Apple Watch

Please note, you will need to perform the following steps to install the WaterGuru app on your Apple Watch:

1. Ensure that the WaterGuru app is installed on the iPhone connected to your Apple Watch
2. Ensure that your Apple Watch is located near your iPhone and is connected through Wi-Fi or cellular
3. Ensure that the same Apple ID of your iPhone is configured on your Apple Watch - Note:  If a different Apple ID or no Apple ID is configured on the Apple Watch, the installation will fail.
4. On your iPhone, open the Watch app
5. Tap the My Watch tab
6. Scroll to the bottom of the screen - Apps that you can install appear under Available Apps
7. Tap on Install next to WaterGuru
8. A spinning circle icon will appear during the installation process
9. When complete, WaterGuru will appear under Apps "Installed on Apple Watch"
10. WaterGuru will appear on the Apple Watch
11. Tap the WaterGuru icon on your Apple Watch.................
12. Ensure that the WaterGuru app is open on your iPhone
13. Tap Connect on your Apple Watch...........................................
14. Connecting will appear briefly on your Apple Watch and then disappear
15. The WaterGuru App on your Apple Watch will now be synced with the app on your iPhone