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Samsung Galaxy Z Flip3

Carrier:

Storage:

Cosmetic Condition:

Functionality:

Accessories included?

The Samsung Galaxy Z Flip3 launched in 2021 as Samsung's first mass-market foldable, built for people who wanted a compact phone in the pocket and a full display when opened. It's known internally as SM-F711U1 (unlocked, US) and SM-F711U (carrier-locked, US), and it still holds resale value because the hinge and folding glass proved durable enough to make a used unit a reasonable buy, not just a novelty. If the fold still opens smoothly and both screens light up, this phone is worth listing rather than drawering. Pick your carrier, storage tier, and condition above for an instant cash offer, or see how the process works before you commit. If you have more than one device to move, our page to sell your smartphone covers the rest of the lineup.

Confirm you have the Galaxy Z Flip3

Open Settings → About phone → Model number. This is the fastest way to confirm both the exact hardware and whether it's locked to a carrier. If the phone is disabled or the screen is blank, the model number is also printed in small text on the SIM tray or in the original box.

SM-F711U1

  • Unlocked US variant
  • Works on AT&T, T-Mobile, Verizon and most GSM networks
  • No carrier bootloader lock

SM-F711U

  • Carrier variant sold through AT&T, T-Mobile or Verizon
  • May show a carrier lock until it's paid off or unlocked by the carrier
  • Same hardware as the U1, different software lock

Prefer a visual check? Fold the phone shut and look for a visible gap between the two halves — the Flip3 has a thin one at the hinge. Check the cover screen: it's a small 1.9-inch display, not the larger one used on later Flip models. The frame comes in Cream, Green, Lavender or black (Phantom Black), with no camera bump gap between the lenses seen on newer generations.

Core hardware

Processor

  • Qualcomm Snapdragon 888
  • Octa-core, 5nm process

Graphics

  • Adreno 660 integrated GPU

Memory

  • 8GB RAM across all configurations
  • Fixed at manufacture, not upgradable

Storage & cameras

  • 128GB or 256GB UFS storage, no microSD slot
  • Dual 12MP wide + 12MP ultra-wide rear cameras
  • 10MP front camera under the main display

Storage is the configuration that moves resale value most, since it can't be added later. A 256GB unit in good condition will always price ahead of a 128GB one in the same shape.

Display & audio

Display

6.7-inch foldable Dynamic AMOLED 2X main display at 120Hz, plus a 1.9-inch Super AMOLED cover display for notifications, clock, and camera preview.

Audio

Stereo speakers tuned by AKG. There's no headphone jack, so audio out is either USB-C or Bluetooth.

Security

Fingerprint reader built into the side power button. Face recognition is available as a faster, less secure backup.

Ports & connectivity

The Flip3 keeps its wired connections to a single port and puts most of its capability on the wireless side.

Wired
  • USB-C (charging and data)
  • No headphone jack
  • No microSD slot
Wireless
  • 5G (sub-6GHz)
  • WiFi 6
  • Bluetooth 5.1
  • NFC for Samsung Pay and tap payments
  • Qi wireless charging and reverse wireless charging (Wireless PowerShare)

Foldable design 5G 120Hz display IPX8 water resistance Snapdragon 888 USB-C Wireless PowerShare Cover display

Battery, build & more

Battery

3300mAh dual-cell battery split across both halves of the hinge, with wired fast charging and Qi wireless charging support.

Finishes

Cream, Green, Lavender and black (Phantom Black), with a limited Thom Browne edition released the same year.

Software

Shipped with One UI over Android 11. It has since received several years of Android and security updates from Samsung.

Known issues

Like all foldables of this generation, the inner display shows a visible crease and uses a plastic protective layer rather than glass, so it scratches more easily than a standard phone screen.

Frequently asked questions

01 How do I find the model number and exact configuration?
Go to Settings → About phone → Model number. It shows either SM-F711U1 (unlocked) or SM-F711U (carrier variant), and the same screen lists your storage tier under "Storage." If the phone won't power on, check the SIM tray or the barcode label on the original retail box, both of which print the full model number.
02 How do I tell it apart from the Galaxy Z Flip4?
Check the model number first — the Flip4 uses SM-F721 series numbers, not SM-F711. If you can't check software, fold the phone shut: the Flip3 leaves a small visible gap at the hinge, while the Flip4 closes flatter with almost no gap. The Flip4 also carries a slightly larger battery and a newer Snapdragon 8+ Gen 1 chip, though neither is visible from the outside.
03 Can I sell it with damage, a weak battery, or an account lock?
Yes, in most cases. A cracked cover screen, a cracked inner display, a battery that drains fast, or a unit that won't power on all still have value as parts or refurbishable units — select the matching condition above and the quote adjusts. What we can't accept is a phone still tied to a Google account or Samsung's Find My Mobile with Reactivation Lock enabled. Remove your Google account and turn off Find My Mobile before shipping, otherwise the device can't be resold.
04 What raises the trade-in value the most?
Being unlocked and fully functional matters most. An SM-F711U1 unit with no carrier lock, an intact hinge with no gap or wobble, both screens free of cracks, and the original box and cable will price ahead of an otherwise identical carrier-locked phone with a scratched cover display. Higher storage (256GB) also helps, since it can't be added after purchase.
05 How do I erase it, remove my accounts, and get paid?
Back up anything you want to keep first. Remove your Google account through Settings → Accounts and backup → Manage accounts → Google → Remove account. Then turn off Find My Mobile and sign out of your Samsung account through Settings → Biometrics and security → Find My Mobile. Finally, run Settings → General management → Reset → Factory data reset to wipe the device. Once it's erased and both accounts are removed, ship it to us — shipping is free and insured. Payment goes out after testing, by PayPal, Venmo, Zelle, CashApp or check. Full steps and screenshots are on our data erasure protocols page.