iPhone Duo in stock, open-box and never used
Looking for an iPhone Duo in stock? VoltVault lists it in 256GB, 512GB, 1TB and 2TB, open-box and never used. Every listing is the US model, eSIM only (no physical SIM tray). We ship from Utah, USA within 2 business days of confirmed payment, with free tracked shipping in the US and worldwide. Pay by card (PayPal) or crypto at checkout.
These are our iPhone Duo listings and their prices. We don't publish unit counts; if a listing sells out, the product page says so.
| iPhone Duo 256GB | $1,899 USD · listed in stock |
|---|---|
| iPhone Duo 512GB | $2,099 USD · listed in stock |
| iPhone Duo 1TB | $2,499 USD · listed in stock |
| iPhone Duo 2TB | $3,099 USD · listed in stock |

Manufacturer image shown for reference; not a photo of the individual item.
The iPhone Duo is Apple's foldable iPhone. It opens to a 7.6-inch inner display, has a 5.4-inch outer display, and pairs the A20 Pro chip with a 48MP dual camera in a titanium frame.
What you get
The box holds the phone and a USB-C cable.
| Model | iPhone Duo |
|---|---|
| Storage | 256GB, 512GB, 1TB, 2TB |
| Chip | Apple A20 Pro |
| Display | 7.6-inch folding inner · 5.4-inch outer |
| Camera | 48MP dual |
| Frame | Titanium |
| Carrier | US model, eSIM only (no physical SIM tray) · details on request |
| Includes | Phone, USB-C cable |
| Condition | Open-box, never used |
Check your carrier first
VoltVault is an independent store, not a phone carrier. The iPhone Duo has no physical SIM tray: it works on carriers that support eSIM, so check yours before buying. We can share carrier details for the unit on request: email orders@shopvoltvault.com with the storage size you want.
Shipping inside the US
Free tracked shipping from Utah, USA. We ship within 2 business days of confirmed payment; US transit then typically takes about 2–5 business days. Times are estimates, not guarantees.
Shipping worldwide
We also ship to the destinations listed at checkout, with free tracked shipping. Outside the US, delivery typically takes about 6–10 business days after dispatch and varies by destination. International parcels go through customs clearance in the destination country, which can add time to delivery. Before you order from abroad, confirm that your carrier can activate an eSIM on an iPhone bought in the US.
- Open-box, never used
- Ships within 2 business days of confirmed payment
- Free tracked shipping
- 30-day money-back guarantee (policy)
Paying
Pay by card or crypto at checkout. Card (PayPal) is selected for you: tap Pay by card, then pay with your debit or credit card on PayPal's secure page. Prefer crypto? Choose Crypto and tap Save order and show payment address, then send BTC, ETH, SOL, USDC or USDT; your wallet's network fee may be separate. Each storage size's price is the same by card or crypto. Our pay by card guide walks through each step.
Compare before you buy
- Where to buy iPhone Duo: compare storage, condition and delivery
- Open-box vs refurbished vs new
- Is VoltVault legit?
Common questions
Is the iPhone Duo available to order now?
Yes. These storage sizes are listed in stock: 256GB at $1,899 USD, 512GB at $2,099 USD, 1TB at $2,499 USD and 2TB at $3,099 USD. Each is open-box and never used, and ships from Utah, USA within 2 business days of confirmed payment.
Is it new or used?
Open-box, never used. The box has been opened, so we do not sell it as factory-sealed, but the phone itself has not been used. If anything is not as described, our 30-day money-back guarantee refunds you in full.
Does it take a physical SIM?
No. It is the US model, eSIM only, with no physical SIM tray. It works on carriers that support eSIM; check yours before buying.
Can I get the carrier details before paying?
Yes. Email orders@shopvoltvault.com with the storage size you want.
Do you ship the iPhone Duo outside the US?
Yes. We ship from Utah, USA to the destinations listed at checkout, with free tracked shipping. Delivery outside the US typically takes about 6–10 business days after dispatch, not guaranteed.
How do I pay?
By card or crypto at checkout. Card (PayPal) is selected for you: tap Pay by card, then pay with your debit or credit card on PayPal's secure page. Prefer crypto? Choose Crypto and tap Save order and show payment address, then send BTC, ETH, SOL, USDC or USDT. Each storage size's price is the same by card or crypto.
What's in the box?
The phone and a USB-C cable.
- Free tracked shipping worldwideDelivery only. Every order ships with tracking.
- 30-day money-back guaranteeAny reason. Returns policy
- Secure checkout: card + cryptoPay by card (secure PayPal checkout) or crypto: BTC, ETH, USDC, USDT, SOL.
- Support by emailorders@shopvoltvault.com