Technology

Your Annual Device Health Check

Laptop, smartphone, and tablet arranged on a clean desk alongside a checklist notebook.

Key Takeaways

  • Battery health degrades over time — checking it annually helps you plan ahead before performance suffers.
  • Outdated software is one of the most common and preventable security vulnerabilities on consumer devices.
  • A full backup should be verified, not just initiated, to confirm your data is actually recoverable.
  • Physical wear like cracked ports or swollen batteries can escalate into serious safety issues if ignored.
  • Reviewing app permissions and subscriptions once a year can uncover privacy risks and forgotten charges.
30–60 min

Summary

22 items · 30–60 minutes

Why an Annual Device Check Matters

Most people treat their devices like appliances — using them daily without a second thought until something goes wrong. But smartphones, laptops, and tablets accumulate problems gradually: storage fills up, software falls out of date, batteries degrade, and apps quietly collect permissions they no longer need. By the time you notice a slowdown or a failure, the underlying issue has often been building for months.

An annual device health check is a deliberate pause to audit what's actually happening under the hood. Think of it the way you'd think about a routine vehicle maintenance review — proactive attention prevents larger, more expensive problems later. This checklist covers the five areas that matter most: battery health, software and security, storage, backups, and physical condition.

Work through each group at your own pace. You don't need any specialized tools — just access to your device's built-in settings and about 30 to 60 minutes of focused time.

Battery Health

Check your battery's maximum capacity in your device settings (on iPhone: Settings > Battery > Battery Health; on Android: use a manufacturer diagnostic app or built-in battery settings). Must
Note whether your device is experiencing unexpected shutdowns or significant heat during normal use, both of which can indicate battery degradation. Must
Review your charging habits — avoid leaving devices plugged in at 100% for extended periods and try not to regularly drain to 0%. Should
If battery capacity is below 80% of its original rating, research replacement options through the device manufacturer or a certified repair provider. Should

Software and Security

Install any pending operating system updates on all devices, including smartphones, tablets, and computers. Must
Update all installed apps to their current versions, as outdated apps can contain unpatched security vulnerabilities. Must
Review app permissions (location, microphone, camera, contacts) and revoke access for any app that no longer needs it or that you no longer use. Must
Check that your device lock screen is enabled with a strong PIN, password, or biometric method. Must
Audit two-factor authentication settings on key accounts (email, banking, social media) and enable it where missing. Should
Review which apps have access to your device's Bluetooth, Wi-Fi, or home network and remove access where it's unnecessary. Nice to have

Storage and Performance

Check available storage on each device and ensure at least 10–15% of total capacity remains free for optimal performance. Must
Delete apps you haven't opened in six months or more, along with any duplicate photos, old downloads, and unused files. Should
Review active subscriptions tied to your device accounts and cancel any you no longer use. Should
Clear browser caches and cached app data that may have accumulated significantly over the year. Nice to have

Backups

Verify that automatic backups are enabled and that the most recent backup completed successfully — check the timestamp, not just the setting. Must
Confirm that critical data (contacts, photos, documents) is actually present in your backup by spot-checking a few files. Must
Ensure you have at least one backup stored in a separate location (cloud and a local copy, for example) to protect against a single point of failure. Should

Physical Condition

Inspect all charging ports, headphone jacks, and connectors for visible debris, corrosion, or damage — use a flashlight for a clear view. Must
Check the device screen and casing for cracks or damage that could worsen over time or pose a safety risk. Must
Look for any bulging or deformation on the device body, which can indicate a swollen battery requiring immediate professional attention. Must
Clean device surfaces, ports, and speaker grilles gently using appropriate tools (a soft brush, compressed air, or a lint-free cloth). Nice to have

Tools and Resources You'll Need

Before you begin, gather what you'll need. Most checks rely entirely on your device's built-in settings, but a few external tools can make certain steps easier or more thorough.

Required

Device Settings App

Access battery health, storage usage, app permissions, and backup status — all built into your device's native settings.

Required

Cloud Backup Service

Verify that your most recent automatic backup completed and that key files are accessible.

Optional

Manufacturer Diagnostic Tool

Some device makers offer dedicated apps or web-based tools to run hardware diagnostics, including battery and storage tests.

Optional

Compressed Air Canister or Soft Brush

Safely remove dust and debris from ports, vents, and speaker grilles without damaging internal components.

If you discover during this audit that you're paying for apps or services you'd forgotten about, a dedicated subscription review can help — see our guide on finding active subscriptions you may have overlooked. For a deeper dive into long-term device care beyond this annual check, our complete device longevity reference covers every major maintenance category in detail.

Don't Skip Backup Verification

Enabling a backup setting is not the same as having a working backup. Many users discover their backup stopped running weeks or months earlier — often due to insufficient cloud storage or a connectivity issue. Always check the timestamp of your last successful backup and, where possible, confirm that specific files are actually accessible in it.

Understanding What You Find

Once you've worked through the checklist, you may have a list of items that need follow-up. Prioritize anything flagged as must — these represent genuine risks to your data, security, or device safety. Items marked should are strongly recommended but won't cause immediate harm if deferred briefly. Nice-to-have items are optimizations worth scheduling when you have time.

Battery health is worth special attention. If your battery capacity has dropped significantly below its original rating, you may notice your device shutting down unexpectedly or running hot. This is also a good moment to revisit which always-on features are quietly draining your battery throughout the day — disabling a few can extend the useful life of an aging battery considerably.

Finally, don't overlook the physical inspection. A swollen battery, a port that sparks, or a cracked screen with exposed components are safety concerns, not just cosmetic ones. If you notice any of these, consult a qualified repair technician rather than continuing normal use.

A Swollen Battery Is a Safety Issue

If you notice your device's back panel bulging, the screen lifting away from the body, or visible swelling anywhere on the casing, stop using the device and do not attempt to charge it. A swollen lithium-ion battery poses a genuine fire and chemical hazard. Take it to a qualified repair technician or the manufacturer's service center as soon as possible.

Technology Editorial Team is the collective byline for our editorial team and contributor network. Articles published under this byline or an editorial pen name are researched, written, and reviewed according to our editorial standards for clarity, consistency, and independence before publication.

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