OnePlus · Instant quote
OnePlus 9
- Free, insured shipping
- Certified data erasure
- Paid within 2 business days
- No selling fees, unlike marketplaces
The OnePlus 9 arrived in 2021 as the standard flagship in OnePlus's ninth-generation lineup, positioned just below the 9 Pro for buyers who wanted flagship speed without the curved-edge display or the larger camera housing. It paired a Qualcomm Snapdragon 888 with Hasselblad-tuned cameras and 65-watt wired charging, at a time when most competitors were still capping charge speeds far lower. Years on, the Snapdragon 888 platform still handles everyday apps, streaming and casual gaming without strain, and the aluminum-and-glass body ages well when kept in a case. If yours still powers on and holds a charge, it has resale value worth capturing before software support falls further behind. Pick your memory, storage and carrier configuration above, along with the condition that matches your phone, for an instant cash offer. See how the process works, or browse other ways to sell your smartphone if this turns out not to be the exact model you have.
Confirm you have the OnePlus 9
The fastest way to confirm your phone is the standard OnePlus 9, not the 9 Pro or 9R, is through Settings → About phone. The model name shows near the top of that screen. Carrier lock status and IMEI are listed a few lines below, which also tells you which network variant you're holding. If the phone won't power on, the carrier is often printed on the original packaging or on the SIM tray itself.
AT&T
- Carrier-branded firmware and boot screen
- Bootloader locked, not user-unlockable
- Sold through AT&T retail and installment plans
T-Mobile
- T-Mobile branding on the boot screen
- Bootloader locked
- Compatible with T-Mobile and Metro SIMs
Verizon
- Verizon-specific firmware, required for Verizon's network
- Bootloader locked
- Works on Verizon and select Verizon-compatible MVNOs
Unlocked
- Sold directly by OnePlus or major retailers, no carrier branding
- Bootloader unlockable
- Works across AT&T, T-Mobile and most GSM networks
Prefer a visual check? The OnePlus 9 has a flat display with a centered punch-hole camera and a rectangular rear camera housing with three lenses stacked vertically. The 9 Pro's screen curves at the edges and its camera module sits noticeably larger and squarer on the back.
Core hardware
Processor & graphics
- Qualcomm Snapdragon 888, octa-core
- Adreno 660 integrated graphics
- Handles modern apps and casual gaming comfortably
Memory
- 8GB LPDDR5 RAM
- Soldered, not upgradable
Storage
- 128GB UFS 3.1 storage
- Soldered, no microSD expansion
- Fixed at the factory on this configuration
Cameras
- 48MP main sensor (Sony IMX689) with optical stabilization
- 50MP ultra-wide lens
- 2MP monochrome lens
- Hasselblad color calibration, 16MP front camera
Display & audio
Display
A 6.55-inch Fluid AMOLED panel at FHD+ resolution with a 120Hz refresh rate and HDR10+ support. It's flat, not curved, which makes screen protectors and case fitment simpler than on the 9 Pro.
Audio
Stereo speakers tuned with Dolby Atmos. There is no 3.5mm headphone jack, so wired listening requires a USB-C adapter or Bluetooth headphones.
Security
An in-display optical fingerprint sensor handles unlocking, alongside face unlock as a faster but less secure backup.
Ports & connectivity
The OnePlus 9 keeps its physical connections simple, USB-C for charging and data, with the rest handled wirelessly.
- USB-C (USB 2.0 speeds)
- Dual nano-SIM tray
- No headphone jack
- No microSD slot
- 5G (sub-6GHz, carrier dependent)
- Wi-Fi 6
- Bluetooth 5.2
- NFC
5G Wi-Fi 6 Bluetooth 5.2 NFC Warp Charge 65T 120Hz AMOLED Hasselblad cameras In-display fingerprint
Battery, build & more
Battery
A 4500mAh cell paired with Warp Charge 65T wired fast charging. There is no wireless charging on this model, that feature is reserved for the 9 Pro.
Build
An aluminum frame with Gorilla Glass on the front and back. There is no official IP water-resistance rating on the standard OnePlus 9, so treat any exposure to water as a condition risk when grading it.
Software
Shipped with OxygenOS on Android 11. Software support has since wound down, which is worth factoring in if you're deciding between selling now or holding onto an aging Android build.
Market positioning
A mid-flagship from its generation, still capable for daily use but past its software support window, which is where most of its remaining resale value sits.