CoolWallet S review

What is the CoolWallet S?

Most of the popular hardware wallets available on the market at the moment connect to your laptop or PC via USB. However, the CoolWallet S is a wireless bitcoin wallet that uses Bluetooth or near field communication (NFC) to connect to your Android or iOS smartphone.

The main aim of this wallet is to provide portability and convenience, and to that end, it features a slim and sleek design that makes it easy to take with you wherever you go. Inside the device, you’ll find a secure element (SE) chip for storing your private keys, and there’s also a built-in display for viewing transaction details.

The CoolWallet S was developed by Taiwanese fintech company CoolBitX, which specializes in digital asset hardware and developing smart contract platforms. The original CoolWallet hit shelves in 2016, while the S was launched in 2018.

Compatible with:

Operating systems: The CoolWallet S can be paired with Android 5 or later, or iPhone 5 (iOS 9.1) or later.

How much does it cost?

As of May 2019, you can find the CoolWallet S selling for $99.

Which currencies can I store?

The CoolWallet S allows you to store:

How do I set up my wallet?

To set up your CoolWallet S, complete the following steps:

1. Download the CoolWallet S app from Apple’s App Store or Google Play.
2. Make sure your CoolWallet S is charging.
3. When opening the app for the first time, check that the serial number quoted in the app matches the serial number in the top left corner of your wallet.
4. Press “Connect”.
5. Check your CoolWallet S for a one-time password which you can then enter in the app.
6. Tap “Pair” on the app and press the button on your CoolWallet S to confirm.
7. You’ll then be provided with a pairing password which can be used to pair additional devices to your CoolWallet S.
8. Press the button on your wallet to confirm the pairing sequence.

Next, you’ll need to create a new wallet by doing the following:

1. 1. Press “Create”.
   2. Select the length of the seed you want CoolWallet S to generate for you, then tap “Generate”.
   3. Write down the seed and store it somewhere safe.
   4. Press “I have written down all numbers”.

1. A verification screen appears. Add up all the numbers in your seed, input the total in the field provided and press “Verify”.

How do I add currency to my wallet?

To add currency to your CoolWallet S, select the wallet address you want to use and tap “Receive”. You can then scan the relevant QR code or copy the wallet address, which can then be used as the receiving address when transferring funds. Please note that you can change the currency you wish to receive by clicking the icon at the top right of the screen.

How do I make payments with my CoolWallet S?

To make a payment you’ll need to:

1. Select the wallet you want to transfer funds from.
2. Tap “Send”.
3. Use the icon at the top right of the screen to select the currency you want to send.
4. Enter the receiving wallet address in the “To” field or scan the relevant QR code.
5. Enter the amount you wish to send.
6. Tap the “Send” button.
7. Read the transaction details on your app and on your CoolWallet S.
8. Confirm the transaction by pressing the button on the card.

How secure is the CoolWallet S?

The CoolWallet S offers a number of security features to help protect your crypto holdings, including:

• Secure Element. The wallet features an eAL5+ certified SE microchip for the storage of your crypto private keys.
• Encrypted Bluetooth. Wireless syncing is conducted using encrypted Bluetooth technology, allowing for quick and secure funds transfers.
• Multiple confirmations. To confirm a send transaction, you’ll need to review transaction details on both the app and your CoolWallet S screen before pressing the “Send” button on your device.
• Set your security level. When you create a new wallet, CoolWallet S generates a new seed set. Depending on your desired security level, you can choose from a seed with 12, 18 or 24 number sets.
• Hierarchical Deterministic (HD). As CoolWallet S is an HD wallet, it’s simple to backup and recover your wallet if anything ever goes wrong.

Where can I get the CoolWallet S?

You can buy the CoolWallet S from the manufacturer’s website.

Pros and cons

Next steps

Compare a variety of cryptocurrency wallets to decide which one has all the features you want. If the CoolWallet S is the right fit for you, click on one of the green “Go to site” links on this page. You’ll be taken to the manufacturer’s website where you can read up on the technical specs and features of the CoolWallet S and finalize your purchase.

FAQs

• Does the CoolWallet S have a warranty?

  Yes, the manufacturer offers a 12-month warranty.

• How big is the CoolWallet S?

  The wallet is roughly the size of a credit card. Its exact dimensions (+/- 5%) are 85.6mm(L) x 53.98mm (W) x 0.8mm(D).

• Can I use the CoolWallet S on its own without pairing it with a device?

  No. The CoolWallet S relies on 2-factor authentication, so you’ll need to use it in tandem with an iOS or Android smartphone or tablet.

• How long does the wallet’s battery last?

  The battery in the CoolWallet S lasts for two to three weeks once charged.

Disclosure: At the time of writing, the author holds ADA, IOTA and XLM.