Is there a minimum o/s version of android that Moto 360 watch will only use?

[AC Question]

Need to buy a new phone and the ones I can afford only have older Android operating systems.. 5.1, etc.. I thought I needed at least 5.4 to have it sync with Moto 360 watch?

 

[hallux]

There was no 5.4 version of Android. The Android Wear app supports 4.3 and up, and the specs on Motorola's site indicate the same for the watch, 4.3 and up.