If you have several thousand dollars in your wallet and you constantly trade from your mobile phone wallet, but I would not keep more than 10,000 dollars in a mobile wallet.
If you store coins, then you can use the Ledger or Trezor, and if you like trading, then read about SafePal. You will get the opportunity to trade without KYC on binance.
I don't trade much and even I do, I use binance for that purpose and have some balance left in the exchange for trading.
Although the amount is not more than $10,000 all the amount that I hold in the smartphone wallet is for long term.
I am planning to delete the smartphone wallet from my phone now since I already have the backup of the seed.
For monitoring the balance I will just look it up on the explorer.