Performance and Memory
With an internal storage capacity of just 650 KB, the Z300 was not designed for heavy data use or app storage, but rather simple tasks like managing contacts and messages. The phonebook could store up to 300 entries, each capable of photo call functionality, and call records could track up to ten missed, received, and dialed calls each. The absence of a card slot limited expandability, aligning with the phone's overall focus on simplicity.