Which Google Play Store app is required to configure this fasttrack watch ?

[Futureized]

Its a kids watch, I configured the same few months ago but forgot which app was used from Google PLay Store.
Please check the pics and kindly suggest right app.
I tried 2 apps from Play Store (from Titan) enabled bluetooth on mobile, but the watch is not getting detected..

Thanks

Post automatically merged: Dec 22, 2019

Update:
Fastrack Reflex by Titan India worked properly, I dont know how it was detected by the app (was trying since yesterday).
Kept pressing the watch screen and it appeared on mobile with bluetooth on.

Thanks, configured it well..