Hi,

I have the Dji Osmo Mobile for a long moment and I can say that the battery life of the Osmo Mobile is nearly 3 hours - 3h and 30 min max .

You should take the newer version of it : The Osmo Mobile 2 or the Zhiyun Smooth 4 (Depends of your preferences and your needs)

Osmo Mobile 2 : Dji Osmo Mobile 2

Zhiyun Smooth 4 : Zhiyun Smooth 4

Hope I could help you