"Hi Mona, Thank you for your query. Galaxy M21 has LPDDR4x RAM, which gives a blazing fast experience and is built for multitasking. Hope this is of help. Regards, Samsung India" No auto restarting problem in M21 2021 edition, works absolutely fine even better ?####[['auto restarting problem', 'Performance#General', 'positive'], ['works', 'Overall#Overall', 'positive'], ['LPDDR4x RAM', 'Product Configuration#Operating Memory', 'neutral']]