Having antivirus application installed on our mobile phones is recommendable as we access our crypto wallets, mails, etc through our mobile phones on regular basics. Most of us feel having antivirus on our pc is priority forgetting the fact that our phones contain sensitive materials, files, keys, that must be protected from malwares. Downloading your apps from the google play store is not 100% guarantee enough. You need a good antivirus installed to protect you from unknown applications and pops up messages.
The security experts at AV-TEST have conducted new research to determine the best antivirus solutions of Android, and the results pretty much speak for themselves. Once again, they confirm third-party protection is better than first party, even if it’s available free of charge.
AV-TEST has conducted the study by analyzing a set of 17 security products for Android and testing their engines in three different categories, namely:
- protection
- performance
- usability
Google Play Protect served as the baseline product and received 0 points for protection, but six for performance and four for usability.
Most products received the maximum 18 points in the study, as it follows:
All these products received 6 points for protection, 6 points for performance, and 6 points for usability.
Avast Mobile Security -
Avast Mobile Security & Antivirus is one of the most full-featured of the best Android antivirus apps, offering everything from a privacy adviser to a system optimizer to a customizable blacklist.
FeaturesInexpensive premium version
Lots of features for free
Callblocking doesn't work
Unreliable anti-theft features
Too many ads in free version
Bitdefender Mobile Security -
Bitdefender's Android security app has nearly flawless malware protection, a very light performance impact, Android Wear watch integration, a VPN client and a malicious-website blocker that works with most Android browsers.
FeaturesTop malware protection
Affordable premium version
Many useful features
Small system impact
Expensive unlimited VPN option
Norton Moblie Security -
Norton Mobile Security offers the best malware protection of any of the Android antivirus apps we tested. Unfortunately, Norton quietly killed the app's excellent anti-theft functions in early December 2019, along with its contacts-backup and Link Guard malicious-link blocker.
FeaturesFlawless malware detection
App Advisor beats the competition
Intuitive design
No more anti-theft functions
No more free tier
Kaspersky -
Kaspersky Mobile Antivirus, also known as Kaspersky Internet Security for Android, offers nearly-perfect malware protection, a small system impact and a call blocker that actually works.
FeaturesStrong malware protection
Call blocking works
No ads in free version
Limited features overall
Free version won't auto-scan new apps
McAfee Mobile Security -
Like Avast, McAfee offers a ton of useful features, but its free version is also full of ads and upsell suggestions. The malware protection is decent, if not fantastic, and a useful "Guest" feature lets other people safely use your phone for a short time.
FeaturesLots of free features
Useful guest mode
Too many ads in free version
Pricey premium tiers
So-so malware protection
G Data Mobile Security -
G Data developed the very first antivirus utility way back in 1985. Yes, the German company is better known in Europe than here in the US. Yes, others may point to a different product as the first antivirus. But there's no question that G Data has a long and admirable history. While G Data Antivirus is the company's entry-level product, it goes well beyond the basics of antivirus protection.
FeaturesExcellent score in our hands-on
malware protection test.
Protects against banking Trojans, keyloggers, ransomware, and exploits.
So-so score in our phishing protection test.
Mixed scores in independent lab tests.
Ransomware protection only partially effective
Includes spam filter
Trend Micro -
To even be considered a full-scale antivirus, a program must sweep away all existing malware infestations and protect the system against new attacks. That’s the minimum. Trend Micro Antivirus+ Security goes way beyond that minimum. The "plus" in its name refers to a wealth of bonus features, among them a firewall booster, layered ransomware protection, and a hardened browser for online banking. Add those to an effective core antivirus system and you've got a product that's well worth a look.
FeaturesVery good scores in our antiphishing and malicious URL blocking tests
Multilayered ransomware protection
Pay Guard protects online transactions
Many bonus features
Poor score in our hands-on malware protection test
Some poor scores in independent lab tests
Social network link protection choices dated
No multi-device volume licensing
Ahn Lab V3 mobile Security -
AhnLab V3 Mobile Security is a comprehensive mobile solution for anti-malware, anti-theft and privacy protection. It protects your sensitive data through a complete analysis of data access levels against mobile malware and malicious applications, and helps you find your lost or stolen device.
FeaturesOptimized security solution for Android smartphones and tablets
Full-scale protection against the latest mobile malware (malicious apps), spam, and data leakage
Secure protection for personal data, applications, memory cards, and operating systems
Designed to use less battery power and less memory
Employs the proven, world-class mobile AV engine, V3 Mobile
Avira antivirus security -
Everybody needs antivirus protection, even people on a limited budget. Founded in 1986, Avira protects hundreds of millions of users worldwide with its free Avira Antivirus. This product gets excellent scores from the independent labs, and it brings along a collection of related Avira products. It successfully blocked access to malware-hosting URLs in our testing, but fell down in our phishing protection test.
FeaturesExcellent scores from independent testing labs.
Good score in our malware blocking test.
Free.
Option to install many related Avira products.
Slow on-demand scan.
Browser protection only for Chrome and Firefox.
So-so antiphishing score.
Real-time protection missed some malware EXEs, identified some valid programs as malware.
Helps to secure your lost or stolen device using remote commands
Protected TotalAV -
There's no doubt that antivirus protection is essential to the security of your devices and data. But if antivirus is all you have, some bonus security features start to seem essential as well. With TotalAV Essential Antivirus, you get a collection of tune-up features, along with extra-cost options to add VPN protection, identity monitoring, ad blocking, and password management. Unfortunately, even the presence of real-time antivirus protection isn't enough to make this product a really good choice.
FeatuesDecent phishing protection.
Includes tune-up, disk cleanup.
Well-designed user interface.
Speedy scan.
Poor scores in our malware protection test and malicious URL blocking test.
No results from test labs we follow.
Marked many dangerous downloads as safe.
Expensive.
AVG -
AVG packs excellent protection into its free antivirus utility. If you want more than the basics, you must upgrade directly to the company's security suite, AVG Internet Security - Unlimited. The suite adds several useful components beyond what you get with AVG's free antivirus. Whether these merit switching to a for-pay model is something you have to decide for yourself.
FeaturesVery good scores in multiple independent lab tests and our own hands-on tests.
Unlimited licenses.
Includes ransomware protection and webcam protection.
Initial scan slower than average.
Unusually large impact in performance tests
sources
https://news.softpedia.com/news/the-best-new-antivirus-for-android-531806.shtmlhttps://www.tomsguide.com/best-picks/best-android-antivirushttps://www.pcmag.com/reviews 
thanks for the advice 
but it will best if the wallet is really cold/offline never connected to internet and add hardware wallet would be great
Generally Android device doesn't need anti virus because this OS don't even have any virus yet to freeze our system but their other features can be useful for performance tweak nothing else. 
A smartphone connected to the internet can never be considered as secure no matter how keen we are when clicking the links and installing apps so the best choice is hardware wallet which is cheaper than buying a cheap android and using it for air gapped wallet. 
