just a suggestion from me, don't save crypto assets on a smartphone. choose proper storage and indeed specifically for crypto.
I'd say unrooted/unjailbroken mobile phones are mostly better for low-amount crypto storage compared to desktop devices.
because I lost my smartphone and I no longer have access to my assets
It ain't going to matter whatever device you use to store your coin's keys if you don't write down a backup of your wallet's recovery seed, which was the reason why you weren't able to gain back access to your assets.