Here is the list of best free available antivirus for android which work perfectly on any Android device.
1. Avg Antivirus for Android(Download) - Avg Antivirus For AndroidAVG is a free antivirus software, which helps you to protect your Android device from virus, malware and spyware. It also secures your mobile phone while you are surfing internet online. It provides some other features like Anti-Theft, SMS Scanner, Task Killer, Real time scanner, Backup Assistant etc.
2. Avast Mobile Security(Download) - Avast Mobile Security for AndroidAvast mobile security is a free antivirus available in android market. It will protect your data with automatic scanning and delete infected files. It have web shield that scan infected URL while you are browsing. It provides many features like Block hackers , Firewall, Anti-Theft and blocking unwanted calls. It is rated 4.7 on the Play store.
3. Kaspersky Mobile security(Download) - Kaspersky Mobile Security For AndroidKaspersky delivers optimized protection for your android device. It protects your android device from spyware and malware.
It provides a real time protection against spam, malicious programs, un wanted calls and sms. It Scans every downloaded file and optimizes your phone for improved performance.
It has advance Anti-Theft protection which helps you to locate your lost device through Google map even if your sim card has been disabled.
4. ESET Mobile Security(Download) - ESET Mobile Security for AndroidESET is one of best antivirus for all android device as well as windows. It protects your android smart phone or tabs from virus and malware attack and you can use it on your android device without any worry about connecting to Wi-Fi or emerging threats etc. By its Anti-Theft feature you can find your lost device.
5. Dr. Web Anti-Virus Light(Download) - One of the most downloaded and reviewed antivirus in Android market. It has loads of features and benefits over other antivirus for android devices. It doesn’t hamper battery performance.
The real time file scanner Spider Guard gives constant antivirus protection. It constantly keeps a check on suspicious malwares and autorun files on SD card. The detected threats can be moved to quarantine so that you can get more information on it later on.
Its free version gives you pretty much everything related to antivirus protection. You can always opt for pro version for better mobile security and some extra features like Call Filtering, SMS filtering, Anti-theft, etc.
6. NQ Mobile Security & Antivirus(Download): I have been using this app antivirus for over a year now and I am quite satisfied with it. It gives real time security and the best part is, it does not consume a lot of ram. My battery is not affected much from this antivirus. It has a good feature of security which I like a lot; it gives me the details of the apps that might compromise my security by accessing contacts, sms, etc.
7. Lookout Mobile Security& Antivirus - Lookout Mobile Security & Antivirus for AndroidLookout Mobile Security & Antivirus is also one of the best antivirus solutions for all android device. It keeps yours android device safe and secure from spam, viruses, malwares or other kinds of infections. But It is not good when comes to memory consuming and affects the battery performance also.
The above list is arranged according to the user rating and performance. Also you can check yourself by installing them on your android device.