Are there any smartphones out there that are hard wallets too?

[taufik123]

As far as I know it is possible to add hardware to an iphone if it is separate from the iphone itself, that can still interact with it from the inside to sign a transaction to keep the bitcoin on the iphone Which is called a hardware wallet.

You may have misunderstood the OP's intention. He wants a hardware Wallet that is directly embedded in the smartphone and becomes one like the Solana Saga Smartphone, not a separate wallet or Hardware wallet in general.

      You probably know that a hardware wallet is a device that stores bitcoins offline, which you can connect to your phone via usb or and once you do it, you can sign transactions without showing your private key.

A Bitcoin wallet stored offline would indeed be better and more secure than a Wallet that is constantly online on a smartphone.

The optimal and recommended use of crypto wallets is hardware wallets.
Without internet or other wireless connections WIFI, Bluetooth.

[dkbit98]

Graphene OS looks good, I just found out about it.
But it officially only supports Google Pixel and the latest one already supports Google Pixel 7 Series.

Yes, but you can buy older Pixel devices that are still updated on regular basis, something like Pixel 5 is fairly cheap and affordable for most people.
There are other alternatives for Graphene OS that work with other Android devices but they are inferior compared to GOS and updates are not so frequent.
LineageOS, CalyxOS, Divest, etc are all fine and open source, but support for other Android devices is not great, and they often get broken with new updates.

[Synchronice]

Overall, smartphone as a hard wallet is a bad idea and I really hope that companies and people don't support it. At the moment, one rarely thinks that someone has a hardware wallet in his smarrphone but imagine, if it becomes popular, a phone theft rate will dramatically increase because bitcoins are like: once gone, gone forever and if we keep in mind the low security of smartphones (doesn't matter which method you use, especially on androids), then the answer is clear.

Do you mean that inside your phone there is a "cold storage build-in wallet" or just a wallet that connects to hardware wallets?
I think Galaxy S10 can do that and I read somewhere that they have a phone that works as a full node, syncs, and you can run it as cold storage but I don't remember the exact name.

That was HTC.

Do you mean that inside your phone there is a "cold storage build-in wallet" or just a wallet that connects to hardware wallets?
I think Galaxy S10 can do that and I read somewhere that they have a phone that works as a full node, syncs, and you can run it as cold storage but I don't remember the exact name.

You are probably talking about the Samsung Blockchain Wallet, although I have never heard talks about it being a full node.

It's not a full node. Just a simple wallet. It also comes with Samsung Blockchain Keystore.

[tabas]

Ledger Nano X has its mobile app through its Ledger live app and it supports iOs and android OS. Well, they're in the hot seat now thanks to their new added feature which is the ledger recover and it's good for everyone to know about it and there's a continuous discussion all about it.
Thread: Ledger Recovery - Send your (encrypted) recovery phrase to 3rd parties entities
While this has just given me the idea of what OP is looking about. I've personally thought of this actual smartphones are hardwallets by simply downloading a wallet like Electrum mobile and keeping that phone offline, the same goes for those laptops that are used as an actual wallet for those that can't afford to buy a hardware wallet or chooses to use that with their spare laptop and keep it disconnected from the web as if it's an actual huge hardware as their wallets.

[Pmalek]

If OP is still interested, they can take a look at what the AirGap wallet is doing with its most recent service called AirGap Knox.
https://bitcointalk.org/index.php?topic=5342004.0

I am not advertising the service or anything, just mentioning it here because I heard about it recently. AirGap Knox is a device manager you install on your phone that blocks connectivity on the OS level and thus keeps your phone offline. However, it's a paid service and closed-source.

[taufik123]

Yes, but you can buy older Pixel devices that are still updated on regular basis, something like Pixel 5 is fairly cheap and affordable for most people.
There are other alternatives for Graphene OS that work with other Android devices but they are inferior compared to GOS and updates are not so frequent.
LineageOS, CalyxOS, Divest, etc are all fine and open source, but support for other Android devices is not great, and they often get broken with new updates.

Pixel 5 used price is still around $300 and still quite expensive, but if it's only google pixel that can be installed graphene OS perfectly, it's quite worth-it (also depends on user needs).

Never installed Graphene OS or LineageOS, CalyxOS, Divest, etc. Maybe later I can install one of them.
A hardware wallet embedded in the smartphone is also not a bad idea, it can be an alternative without using a separate hardware wallet.

Rather than having to use a hardware wallet like LEDGER, I'd rather choose my own smartphone to be a custom hardware wallet that I can fully control LOL.

[dkbit98]

Pixel 5 used price is still around $300

Dude I don't know what are you talking about and where you live, but I can find used Pixel 5 and 5a much cheaper, even Pixel 6a in good condition is below $300
Please check prices worldwide before you make some claims like this, and prices can be even cheaper for people who live in United States.
Models with A letter are smaller, made from plastic and have weaker camera but they are still good enough for GrapheneOS degoogled phone.

Never installed Graphene OS or LineageOS, CalyxOS, Divest, etc. Maybe later I can install one of them.

It takes few minutes to install everything, but you need to have minimal knowledge with system installation on other devices.

Rather than having to use a hardware wallet like LEDGER, I'd rather choose my own smartphone to be a custom hardware wallet that I can fully control LOL.

I don't want to rent a lot against ledger, I think I proved that I was correct when I criticized them in last few years, beacuse I had a feeling things are going in this direction  

[taufik123]

Dude I don't know what are you talking about and where you live, but I can find used Pixel 5 and 5a much cheaper, even Pixel 6a in good condition is below $300
Please check prices worldwide before you make some claims like this, and prices can be even cheaper for people who live in United States.
Models with A letter are smaller, made from plastic and have weaker camera but they are still good enough for GrapheneOS degoogled phone.

I live in Indonesia man, Google Pixel prices are still expensive. The cheapest Pixel 5 is around the price of $200 - $300 and it depends on the condition and completeness of the device. and maybe it can be lower if without any accessories.
In the United States, it will certainly be cheaper especially used prices, will be much cheaper.

It takes few minutes to install everything, but you need to have minimal knowledge with system installation on other devices.

I often install several OS for Android, Custom ROM, etc.
But I have never flashed an OS that is related to crypto wallets or an OS that is more concerned with security.

I don't want to rent a lot against ledger, I think I proved that I was correct when I criticized them in last few years, beacuse I had a feeling things are going in this direction  

Now that it has become a custody wallet, what to expect? People are starting to abandon it.
Everyone is withdrawing from Ledger hardware, for the security of their assets. If you have predicted it, then it has become real.
Just wait for its destruction or cancel the update.

[Pmalek]

Everyone is withdrawing from Ledger hardware, for the security of their assets. If you have predicted it, then it has become real.
Just wait for its destruction or cancel the update.

Not sure if it's going to be enough if they come out and say we changed our mind and we have abandoned the idea of Ledger Recover. They have dealt a much bigger blow to the whole industry by revealing that private key sharing is and has always been possible. They made their plans public this time, what if they or someone else doesn't in the future? What if they can retrieve your seed even if you don't give your consent, or they make some changes where they don't even need to ask you?

[bettercrypto]

Based on what I had found is that the trezor model is a type of hardware wallet that can be connected to any smartphone via usb, which allows you to transfer cryptocurrency even offline. Apart from this, the Samsung is also possible, because it has features called knox vault.

But not all smartphones have a built in cold storage wallet so it can be said to be secure. Most can also have vulnerabilities that hackers can get into to get crypto.

[Zoomic]

Everyone is withdrawing from Ledger hardware, for the security of their assets. If you have predicted it, then it has become real.
Just wait for its destruction or cancel the update.

Not sure if it's going to be enough if they come out and say we changed our mind and we have abandoned the idea of Ledger Recover. They have dealt a much bigger blow to the whole industry by revealing that private key sharing is and has always been possible. They made their plans public this time, what if they or someone else doesn't in the future? What if they can retrieve your seed even if you don't give your consent, or they make some changes where they don't even need to ask you?

Changing their mind after the update is just like saying;
We are so sorry for letting you know about our decision.
We are withdrawing our decision.
Next time we will implement it without your knowledge.

[dkbit98]

Based on what I had found is that the trezor model is a type of hardware wallet that can be connected to any smartphone via usb, which allows you to transfer cryptocurrency even offline. Apart from this, the Samsung is also possible, because it has features called knox vault.

Trezor only works with Android devices an not with with iPhones, and that is huge market share of smartphone.
I wouldn't agree that Samsung phones are safu just because they have knox vault, because it is bundled with bunch of crap and it's closed source device both hardware and software.
Optional alternative is Pixel phone that can run open source GrapheneOS, they also have secure storage and they used some of Samsung chips.
Problem with many smartphones is also short support, so they can soon become unusable unlike dedicated hardware wallets or even older laptop computers that run Linux OS.

[joniboini]

But not all smartphones have a built in cold storage wallet so it can be said to be secure. Most can also have vulnerabilities that hackers can get into to get crypto.

If I remember correctly some companies already tried to build a dedicated secure chip for their CPU, like Qualcomm SPU unit. They can market those features and build a dedicated phone for crypto (some already exist I believe) if they wanted to. But it still doesn't solve the problem that a phone is a phone. Personally, I wouldn't use a phone as a hardware wallet even if they claim it is unhackable due to a secure chip, etc.

Changing their mind after the update is just like saying;

Most people definitely lost their trust in Ledger, especially after the latest Atomic Wallet exploit. Who knows, maybe the same thing can happen when Ledger makes their firmware can expose the user's seeds in one way or another. Unless they make everything open source and allow people to verify/develop their own app without relying on Ledger, I wouldn't use or recommend them to others.