Needing pairing my German tactics watch with my Android phone

I bought a VivoSmart 4 tonight. The instructions that came with it had exactly and only 5 steps:
1 - Align charger posts and connect charging clip. Did that.
2 - Plug charger into power source. Did that - plugged the USB port on my laptop. The battery icon appeared.
3 - Go to garminconnect/vivosmart on phone's browser. Did that.
4 - Install and open Garmin Connect Mobile App. Did that using the Google Play Store.
5 - Follow instructions on screen to pair the device and phone. Did that and it doesn't work.

The app shows a pop-up that says

Bluetooth pairing request
To pair with:
vivosmart #-----------------
Enter that device's PIN:
(Try 0000 or 1234)



Tapped the pop-up, typed in 0000 and clicked ok and geot an error:

Unable to communicate with vivosmart #--------------. Incorrect PIN or password.



Ummmmm....... huh? It's brand-new, out of the box less than 20 minutes the first time I tried. I get the same response using 1234 or 9999.


So how exactly am I supposed to pair this device if it needs a PIN that I have no way to find?

Those instructions sounds a bit odd. Point 1, 2 and 3 got nothing to do with pairing. 

This is what I found with google:

1. Install and open the Garmin Connect app on your mobile device (Garmin Connect, page 7).
2. On your vívosmart 4 device, press to view the menu, and swipe to select > to enter pairing mode.
3. Follow the instructions on your mobile device to pair your vívosmart 4 device and complete the setup process