Do I need antivirus on my Android phone?

Android has built-in security layers — Google Play Protect scans installed apps, Chrome flags known phishing sites, and the permission model restricts what apps can access by default. For a user who installs apps exclusively from the Play Store and doesn't sideload APKs, those layers address most of the common threat surface. That's a meaningful baseline, not a negligible one.

Quick answer

Install apps from Play Store only, no sideloading→For many Play Store-only users, Play Protect is a reasonable baseline — a dedicated app adds marginal coverage for this usage pattern

Install apps from outside Play Store or use banking apps regularly→Bitdefender Mobile Security — real-time scanning, banking protection, minimal battery impact

Want a single subscription covering phone and desktop together→ESET — Android app included in multi-device plans, consistent detection across platforms

When it matters

Sideloading apps — installing APKs from outside the Play Store bypasses Play Protect entirely; dedicated AV is the only scanning layer for sideloaded files
Banking and financial apps — dedicated products with transaction monitoring and fake website detection add a meaningful layer beyond browser-level phishing alerts
Work devices — a phone used for corporate email or VPN access has a different risk profile than a personal device used primarily for social media
Older Android versions — devices running Android 10 or earlier receive fewer security patches and have weaker built-in protections

A phone used primarily for messaging, streaming, and Play Store apps, running a current Android version with automatic updates enabled, has a different risk profile than one used for business, financial transactions, or app sideloading. The decision should reflect the actual usage pattern.

When it fails

Zero-click exploits — vulnerabilities that execute without user interaction bypass AV entirely; these are rare but patching Android promptly is the only mitigation
Social engineering via SMS or messaging apps — a malicious link sent through WhatsApp or SMS is not scanned by AV before the user opens it
Spyware installed with physical access — stalkerware installed by someone who had the device in hand requires device audit tools, not standard AV
AV apps themselves request broad permissions — evaluate what permissions a security app requests before installing; some collect more data than they protect

Keeping Android updated and using Play Store exclusively addresses more of the realistic threat surface than adding a dedicated AV app on an outdated OS. Software hygiene and update discipline are the higher-leverage variables for most users.

How providers fit

Bitdefender Mobile Security fits if you want dedicated Android protection with low battery and performance impact. Real-time app scanning, web protection in Chrome, and account privacy checks are included. Designed to run in the background without visible overhead on normal usage.

ESET fits if Android protection is part of a multi-device plan that also covers Windows or macOS. The Android app includes app scanning, anti-theft, and call blocking. Consistent detection quality across platforms rather than a thinned-out mobile product.

Norton fits if the phone is also the place where identity monitoring matters — dark web alerts and breach notifications are included in 360 plans. The Android app covers malware scanning and web protection alongside the identity layer.

Bottom line

For most Play Store-only users on a current Android version, Play Protect is a reasonable baseline. If the phone is used for banking, work, or sideloading — or if you want unified coverage across all your devices — a dedicated app adds meaningful coverage. Bitdefender for standalone Android protection; ESET if it's part of a multi-device plan.

I need protection for the whole family→I need one solution for multiple platforms→Quick decision: multiple devices and platforms→