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Sell your
Surface Duo
Surface Duo trade-in value
What Techtree pays today, by condition and storage. Updated October 14, 2026.
What Techtree pays (Unlocked)
| Condition | 128GB | 256GB |
|---|---|---|
| Brand New | $140 | $165 |
| Flawless | $130 | $155 |
| Good | $110 | $135 |
| Fair | $60 | $85 |
| Minor Damage | $20 | $30 |
| Broken | $6 | $9 |
Complete, working device; a missing accessory deducts from the price and the wizard shows the exact figure. Other carriers: AT&T up to $150, Verizon up to $150. How we grade. How we set prices. Every model's price in one table.
Every Surface Duo configuration we buy
| Storage / Carrier | Brand New | Flawless | Good | Fair | Minor Damage | Broken |
|---|---|---|---|---|---|---|
| 256GB, Unlocked | $165 | $155 | $135 | $85 | $30 | $9 |
| 256GB, AT&T | $150 | $140 | $120 | $70 | $30 | $9 |
| 256GB, Verizon | $150 | $140 | $120 | $70 | $30 | $9 |
| 128GB, Unlocked | $140 | $130 | $110 | $60 | $20 | $6 |
| 128GB, AT&T | $125 | $115 | $95 | $45 | $20 | $6 |
| 128GB, Verizon | $125 | $115 | $95 | $45 | $20 | $6 |
Prices as of October 14, 2026 for a complete, working device in each condition; the wizard applies any accessory deduction. Configurations Techtree does not buy are not listed.
- Graded the same waySame check for every device
- Shown what we foundPhotos before any change
- You decideAccept, re-evaluate or free return
Selling your Surface Duo: FAQs
The questions sellers ask most, answered plainly.
How much is a Surface Duo worth today?
As of October 14, 2026, Techtree pays $6 to $165 for a Surface Duo, depending on storage, carrier, condition and included accessories. A complete, working one in good condition is worth up to $135. Values for most devices fall over time, fastest in the weeks after a successor launches.
How much is a used Surface Duo worth in good condition?
As of October 14, 2026, Techtree pays up to $135 for a Surface Duo in good condition (light wear, fully working), by storage: 128GB $110, 256GB $135. The price is locked for 21 days from your quote, shipping is free, and payment goes out 1 to 2 business days after inspection.
Which Surface Duo is this page for?
Surface Duo: released September 2020, chip Snapdragon 855, display 8.1", storage options 128GB / 256GB, RAM 6 GB. Techtree buys every storage size listed in the price table, on Unlocked, AT&T, Verizon.
Can I sell a Surface Duo with a cracked screen or other damage?
Yes, as long as it powers on and works. One issue, such as a cracked screen or a dented frame, is our Minor Damage grade: as of October 14, 2026 Techtree pays up to $30 for a Surface Duo in that condition. More than one issue is Broken, worth up to $9. A device that does not power on cannot be quoted.
Is a locked Surface Duo worth anything?
Not to Techtree: every quote requires the device to be free of activation lock (Find My or Factory Reset Protection), carrier finance locks and blacklisting, and the wizard will not make an offer otherwise. Sign out of your accounts, turn the locks off, pay off the device and remove your data before you ship, and the full price applies.
Does the carrier change what a Surface Duo is worth?
Yes. The price table is for Unlocked. On other carriers the same device fetches: AT&T up to $150, Verizon up to $150. Pick the carrier in the wizard for the exact figure.
What's the best way to sell my used phone?
You can list it on a marketplace, trade it in with a carrier, or use a buyback service like Techtree. A buyback gives you a locked, upfront price with free prepaid shipping and no listing hassle or fraud risk, usually the fastest and safest option.
Does carrier or storage affect my offer?
Yes. Unlocked phones are worth the most, and higher storage tiers earn more. We ask for both during the quote so your price reflects your exact configuration.
Should I factory reset my phone before sending it?
Yes. Back up your data, sign out of your account, turn off activation lock and Find My, remove your SIM, and erase the phone before you ship it.
When is the best time to sell my phone?
Usually right before a new model launches, since older models hold value best before the announcement. Lock your quote now and you have 21 days to ship.
Other Microsoft phone models we buy
Same instant quote, free shipping and 21-day price lock on every model.
Why sell with Techtree?
Plenty of options out there. Here's what you can check before you send anything.