Then samsung galaxy a35.
Samsung phones nowadays are one of the best software support on every budget, starting with the A15 4G (~150€) with 5 years to the flagship, S24 ultra with 7 years.
Samsung galaxy A15 5G, Cheap phone (~180$), micro-sd, headphone jack, good software support (4 OS updates, 5 years security updates), good battery, 1080p amoled 90Hz 800 nits.
Well for calendar I use too the default app, but my usage it is pretty basic.
For me is good enough to not use the google ones.
Samsung browser (with adblock), spotify, Samsung email
Then samsung galaxy a35.
Samsung phones nowadays are one of the best software support on every budget, starting with the A15 4G (~150€) with 5 years to the flagship, S24 ultra with 7 years.