There is no sensible fixed percentage of the phone price. Set the accessory budget from the risks and tasks you actually have.
Prioritise in this order
- Any safe charging equipment that is genuinely missing.
- Protection appropriate to the environment and repair cost.
- Accessibility, work or travel requirements.
- Convenience products only after the phone has been used.
Illustrative budgets
| Scenario | Reasonable approach |
|---|---|
| Careful home and office use | Existing compatible charger plus a modest case |
| Outdoor or manual work | Stronger case and protection chosen for the actual hazards |
| Frequent travel | Reliable charging, cable redundancy and possibly a power bank |
| Temporary low-cost phone | Minimum compatible equipment; avoid accessories worth a large share of the phone |
No amounts in the table are prescribed. Price current products and compare the consequence of not buying them.
Set a replacement reserve
Accessory spending is not finished at checkout. Allow for wear in cables, cases and protectors over the ownership period.
Stop when the problem is solved
Bundles, duplicate chargers and speculative gadgets often create the greatest overspend. A smaller deliberate kit is usually better value.
Do not scale the budget mechanically with phone price
An expensive phone may justify stronger protection because repair exposure is high, but it does not require luxury versions of every accessory. A low-cost phone used for critical navigation or accessibility may justify a reliable charger and mount.
Review the basket as one system
Before paying, remove duplicated cables, incompatible charging products and items included only to unlock a nominal bundle discount. Compare the revised basket with buying the useful pieces separately.
Related guides
Sources and editorial method
Information checked 26 July 2026. The comparisons in this guide are editorial methods, not current market averages or guaranteed valuations. Recheck seller, platform and provider terms before acting.
