Planning tools

Independent reading and planning resources. Check the linked original sources before making decisions.

Budget planner

Remaining = budget − (cost × quantity) × (1 + reserve / 100). Use your own currency consistently. Estimates are personal planning inputs, not prices or advice.

Weighted comparison

Score = sum of (rating × weight) / sum of weights. Enter your own ratings; the result is not a product recommendation.

Preparation checklist

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List the applications you cannot replace.Check operating-system and processor compatibility.Record required ports and display connections.Compare carry weight including the charger.Include accessories and software in the budget.Read the exact seller return and warranty terms.Checklist selections stay in this browser tab only.