Being a loyal blackberry user it's been more then 8 months using Samsung s21 ultra and I don't regret having shifted to samsung.
Lot of them convinced me to buy apple though.
Till date can comment it has best camera , battery, superfast charging, ease of use, many many more feature which I doubt competitors had.
Sometimes we wakeup late and that's OK till you don't wake up dead..... 🌝
