Why a high rate can still be the wrong fit
A high displayed APY can attract attention, but a product's usefulness depends on the job assigned to the money. Emergency cash may require immediate access and stable terms. Short-term savings may need predictable transfer timing. A slightly lower rate with fewer restrictions may better serve those goals.
The comparison should therefore include four columns: expected yield, access, conditions and product structure. A headline wins only one column.
Balance tiers without confusion
Tiered pricing can work in several ways. One rate may apply to the entire balance after a threshold is reached, or different portions of the balance may earn different rates. Some offers provide the best rate only inside a narrow band. Always look for a worked example or calculate each tier separately.
What “for a limited time” changes
A promotional period creates two phases: the introductory window and the period after it ends. A useful comparison estimates both. If the rate changes after three months, an annualized headline does not mean the same rate will be paid for the full year.
When convenience has measurable value
Fast transfers, clear support, predictable statements and simple rules reduce operational friction. That value is not always visible in an APY comparison, but it can matter when funds are used for bills, reserves or planned purchases.