The 120GB entry is one of the amaysim plans that lists unlimited talk and text alongside a large data allowance, which is a different product shape from the plain data plan at the same cycle length.
What the catalogue states
| Field | Value |
|---|---|
| Price | $50 |
| Cycle | 28 days |
| Data | 120GB |
| Talk and text | Unlimited |
| Network | Optus 4G/5G |
| Contract | No lock-in contract |
How it compares within the same cycle
| Plan | Price | Data | Talk and text |
|---|---|---|---|
| 30GB Data Plan | $25 | 30GB | Not stated on this entry |
| 42GB | $35 | 42GB | Unlimited |
| 80GB | $40 | 80GB | Unlimited |
| 120GB | $50 | 120GB | Unlimited |
Read across that table and the ladder is consistent: more money buys more data. The $40 plan at 80GB is worth noting because it sits between the $35 and $50 entries.
What we could not verify. Where a provider has not published a figure we mark it unknown rather than estimate it. Re-read the provider page linked below on the day you decide.