Payment Keychain | Achilles

Yes, Astari wearables work with every Mastercard or Visa card.

For most customers, the easiest option is to connect their payment card through the free Curve wallet app. The setup guide and video walk you through this quick process.

Some banks can also connect directly because Astari already has direct integrations with them. If your bank is not in the direct support list, you can usually use Curve for free. Check directly supported banks here.

Simply hold your keychain purposefully against a contactless payment terminal. It works just like your bank card. For higher amounts, you confirm with your PIN. For best practices, see our guide on how to pay with passive payment wearables.

Yes. It uses the same secure technology as your bank card. For higher payments, you will be asked to enter your PIN. You also stay fully in control through the app. All Astari wearables are certified to Mastercard and Visa standards.

No. Astari wearables use passive NFC technology, meaning they never need charging and are always ready to use, even if your phone runs out of battery.

No. Once your keychain is set up, you can pay without your phone or wallet. Just tap and go.

Setup takes just a few minutes. Connect your card and you are ready to go. No technical knowledge is needed. Follow the simple step by step video or written guide and you will be set up quickly.

Yes. Use the free Curve wallet app to link multiple Mastercard or Visa cards. You can set a default card in Curve, switch cards before paying, reallocate payments afterward, and automate spending rules, such as groceries from one card or purchases over a certain amount from another card.

No problem. You can try it risk free. Astari offers a 30 day return policy, so you can easily return or exchange your keychain if needed. The support team is quick to respond, friendly, and happy to help.

Yes. You can instantly freeze or disable your keychain at any time through the app. This gives you full control, just like your banking app.

Yes. The keychain is fully waterproof and designed for everyday use. You can use it in the rain, at the gym, or at the beach.

It is built to last for years. Since it has no battery, there is nothing to charge or wear out like with other devices. All Astari wearables undergo rigorous testing and come with a minimum 2-year warranty from the date of purchase.

Color

Black

Material

Apple Leather

Width

2cm

Length

6cm / 8cm including ring

Ring

Stainless steel

Scanning range

~3cm

Warranty

2 years

Contactless Payment Keychain Achilles

Standing at a checkout with your hands full is usually the moment people realize how often they still rely on their wallet or phone. Whether you are grabbing coffee before work, paying for public transport, heading into the gym, or quickly stopping at a store while traveling, small payment moments happen constantly throughout the day. The Contactless Payment Keychain Achilles was designed to make those moments feel simpler, faster, and more natural without adding another device to manage.

The Achilles is a contactless payment keychain crafted from premium apple leather and built around passive NFC wearable technology. Unlike smartwatches or battery powered wearables, it never needs charging, software updates, or cables. Because the technology is passive, the payment keychain is powered directly by compatible contactless payment terminals during transactions. It simply stays attached to your keys and remains ready whenever you need it.

For many users, that convenience quickly becomes habit forming. Your keys are already part of your daily routine when leaving the house, driving, commuting, or locking up after the gym. Instead of remembering another device or checking battery percentages, payments become integrated into normal everyday movement. Many people notice that after a few weeks, reaching for a wallet starts feeling surprisingly unnecessary for smaller daily purchases.

The Contactless Payment Keychain Achilles is also an ideal introduction to wearable payments for users who prefer not to wear rings or smartwatches. There are no sizing concerns, no adjustment period, and no extra technology sitting on your wrist or finger. It offers the convenience of wearable payments in a familiar object people already carry every day.

The premium apple leather construction was selected not only for sustainability, but also for practical long term usability. The material feels lightweight, soft, and comfortable in hand while remaining durable enough for constant everyday carry inside pockets, bags, or attached to keys. Combined with its waterproof construction, the Achilles keychain is designed for real daily situations including commuting, travel, workouts, rain, beach days, and active use throughout the day.

The Achilles uses secure NFC payment technology similar to the contactless infrastructure already trusted worldwide by banks and payment networks. In many regions, the payment keychain can be connected through Curve, allowing users to securely link existing debit or credit cards while maintaining modern tokenization and contactless security standards.

A passive payment wearable does not require charging because it uses NFC technology powered directly by the payment terminal during transactions. This allows the keychain to remain lightweight, minimal, and continuously available without battery degradation over time.

If you are new to wearable payments, you can learn more about how to set up your Astari wearable and check compatibility on our supported banks page.

Many users also explore how to pay without a wallet or phone before choosing their wearable payment device.

For users looking for a simpler alternative to carrying cards, wallets, or battery powered wearables everywhere, the Contactless Payment Keychain Achilles offers a quieter and more practical payment experience. Lightweight, discreet, and always available, it fits naturally into everyday life without adding extra friction or complexity.

Frequently asked questions

Does the Contactless Payment Keychain Achilles need charging?

No. The Achilles uses passive NFC technology and contains no battery, which means it never needs charging.

Can I use the payment keychain every day?

Yes. The Achilles is designed specifically for everyday carry and daily wearable payments, including commuting, travel, workouts, and quick everyday purchases.

Is the payment keychain waterproof?

Yes. The keychain features a waterproof construction suitable for everyday situations such as rain, workouts, and daily handling.

Can I connect my existing bank card?

In many regions, yes. The keychain can often be connected through Curve or compatible supported banks depending on your country and card provider.

How secure are wearable payments?

The Achilles uses secure contactless payment infrastructure and tokenization standards similar to modern contactless debit and credit cards.