Please suggest a good smartphone for my dad, more details in the body of the post 👇

My dad currently has Motorola edge 40 neo. The smartphone is good but the battery drains a lot! His smartphone usage is quite heavy , a lot of documents on his phone and on his WhatsApp makes the device laggy. He uses smartphone more than I do lmao.

Requirements :

1. Good storage
2. Good battery life (very imp)
3. Good RAM

Budget : 35k or below