There are lot of options when it comes to your security and privacy. There are many considerateness, such as pricing, cellular network availability, operating system options, availability to applications, etc. I will list based on the manufactures and there links with a summary and my own ratings.
https://unplugged.com/
Over-dependence on technology can cause us to lose our sense of self-reliance. When we depend on technological systems to perform our most important work, and those systems fail or are compromised or are perhaps even maliciously turned against us, we...
Ratting: ⭐⭐⭐⭐⭐ I love the battery turn off button.
https://www.bittium.com/ search for Tough Mobile
Bittium provides reliable and secure solutions for connectivity, tactical communications and biosignal measuring and monitoring.
Ratting: ⭐⭐⭐⭐⭐ Almost to many options for the common user.
https://www.kryptall.com/index.php/products/k-iphone-secure-cellular-communications search for Tough Mobile
ou can be certain your cellular phone is not a target of eavesdropping when using the KryptAll® K iPhone and service. The KryptAll® secure communication solution is designed to be employed when the calling party may be the target of eavesdropping.
Ratting: ⭐⭐⭐⭐⭐ Great if you are a world traveler.
https://www.androidauthority.com/blockchain-phone-sirin-labs-finney-884899/
Bittium provides reliable and secure solutions for connectivity, tactical communications and biosignal measuring and monitoring.
Ratting: ⭐⭐⭐⭐ 4 star only because I am not a fan of crypto.
https://www.bittium.com/ search for Tough Mobile
Bittium provides reliable and secure solutions for connectivity, tactical communications and biosignal measuring and monitoring.
Ratting: ⭐⭐⭐⭐⭐ Almost to many options for the common user.
https://www.encrypted-os.com/encrypted-devices/
Welcome to the most secure smartphone in the world... the Blackphone 2, powered by the pioneering secure operating system, Silent OS, has been expertly architected from the ground up to provide the ultimate in data privacy and security.
Ratting: ⭐⭐⭐⭐ Several options here, but I have reservations of service area costs.
https://puri.sm/products/ A few options here.
The Librem 5 is a phone built on PureOS, a fully free, ethical and open-source operating system that is not based on Android or iOS.
Ratting: ⭐⭐⭐⭐ Several options here, but I have reservations of service area costs.
https://grapheneos.org/ This is an OS alterative to Andriod.
GrapheneOS is a privacy and security focused mobile OS with Android app compatibility developed as a non-profit open source project. It's focused on the research and development of privacy and security technology including substantial improvements to sandboxing, exploit mitigations and the permission model. It was founded in 2014 and was formerly known as CopperheadOS.
Ratting: ⭐⭐⭐⭐ Great option for Pixel phone, if you are on a budget, but make sure your service provider will accept it.
https://www.privacytools.io/android-alternatives search for replacement OS options
Protect your privacy with our privacy-friendly mobile operating systems. Designed to keep your data secure, our mobile OS options are ideal for those looking for a more private and secure mobile experience. Say goodbye to snoops and advertisers and hello to peace of mind. Learn more about our mobile OS options now!
Ratting: ⭐⭐⭐⭐ With a little help from tech support people this can be good.
Yes, it is a lot to take in, but it is worth the research to find the right choice for your needs and budget. I am always available to chat to help you through your process. Use my contact page to set up a date and time to chat about this and other topics you may have.
I did not add iPhone & Samsung secure phones as I personally to not trust those companies on the topic of privacy.
My personal choice is to use my existing cell phone for now, and use one of the other operating systems and stay away from data. As data is one of the issues when it comes to tracking.
I wish you all the best in your search.