I daily charge my phone to 100%. Dunno can last long. 4 yrs cannot, 2 yrs saving to get sgd2k phones. For gaming, other task , like samsung s23 ultra.
Am a simba user for months now, their network is acceptable. It's better than M1, i'm a M1 user for decades before moving to simba. Though i don't really fancy singtel due to their prices, but i have to respect that they have the best network in terms of network coverage and speed. However, singtel has its flaws too, their latency is higher than M1 and Simba. Sometimes webpages loading speed on singtel is quite slow despite having high speed test. Hence, i always tell people to not judge a telco purely based on speed test results. It's the overall experience.
I have to admit Simba have to improve in many other aspects like network coverage. Train underground tunnels, KPE, MCE vehicle underground tunnels works well. The only problem for simba is those older buildings which are quite big, the indoor coverage is bad.
Depends where you work and your work place have good coverage. It works differently for people.
Back to S23 Ultra, i'm using it with e-SIM from SIMBA. I got 5G services and using the $10/mth plan. I chose esim because i'm planning to use it for at least 3-years. Prior to that i use my Z Flip 3 for 2-years, with a small battery. Moving to S23 Ultra, my battery life improved tremendously.
One advice i would give and people suggest is not to fully charge to 100%. It's too technical to understand and explain, it's not good for battery over long time. If you want to prolonged use for your S23Ultra, don't charge it over 85% too often. I often remove from charger from 88%.
Use modes & routines to restrict battery charge beyond 85% if you intend to charge overnight.