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Compatible charging cable
Refurbished price:£509.00
£1,599.00 newVersus £1,599.00 new
Accessories
4.2/5
Appearance
4.6/5
Battery
4.4/5
Lens & Camera
4.7/5
Overall performance
4.6/5
Packaging
4.5/5
Shipping
4.6/5
Reviewed 12/09/2026, United Kingdom.
This is the second time I've purchased a refurbished phone from back market. My S20+ lasted years, but after I dropped it the usb and sim card slot stopped working, so I decided it was time for an upgrade. The S23 Ultra arrived in perfect condition, not a single mark on it. The battery life is great. It doesn't heat up during intensive use like my old S20 either. The optional insurance is brilliant too, it takes the worry away if anything happens to the phone. I would definitely purchase from Back Market again, and I recommend them to everyone I know looking for a new phone. I do have it in a robust case to protect it from any accidental drops. The second picture shows it next to my old S20+ for size comparison.
Galaxy S23 Ultra 512GB - Purple - Unlocked
Galaxy S23 Ultra 512GB - Purple - Unlocked
Condition
Premium
Purchased
31/08/2026
Reviewed 14/07/2026, United Kingdom.
Bought this to replace an accidentally smashed Galaxy S20 Ultra for my daughter. She is delighted with the phone, looked brand new and works perfectly fine; was able to transfer all the data from her old Samsung straight across to it, without a hitch! Thank you!
Galaxy S23 Ultra 256GB - Purple - Unlocked
Galaxy S23 Ultra 256GB - Purple - Unlocked
Condition
Excellent
Purchased
19/06/2026
Reviewed 05/02/2026, United Kingdom.
Samsung Galaxy S23 Ultra arrived very fast. I ordered the one in fair condition, but it is in pristine condition! Runs fast and smooth, cameras are great. The lenses are like new. You can see on the images. I am very happy with a purchase!
Galaxy S23 Ultra 256GB - Green - Unlocked
Galaxy S23 Ultra 256GB - Green - Unlocked
Condition
Fair
Purchased
07/01/2026
Reviewed 03/05/2026, United Kingdom.
I would tell you if I had received a Galaxy S23 Ultra but I didn't, I received a Galaxy S22 Ultra. I paid for the 23 Ultra but the 22 Ultra is £100 less so the bottom line for me is that I'd like a refund of £100. There is no customer service line operating so that I could speak to someone about this issue so I've had to wait until a "Please review your back market item" email appeared in my inbox. I am fed up of answering the "bot" questions/statements and getting nowhere fast. I have the S22 Ultra up and running and I'm happy with it, it is pristine which I required and as a HGV Driver I need a phone permanently 24/7 so sending it back and waiting for a replacement or refund isn't a viable option for me. I would just like back market to read this review and reimburse me £100. In respect of the purchase process, backmarket were very efficient in their communication throughout the process and the phone (albeit the wrong one) was received in pristine condition and well within the delivery time frame stated. I have absolutely no issues with backmarket save the simple error of sending the wrong phone hence the 3 out 5 star rating. I have used backmarket a few times before, I think this is my 3rd phone and never had an issue in the past. Always the service provided was exemplary. That said, I don't intend to relinquish this phone as, as I've already stated, I need a phone 24/ 7 for work. If I am not able to receive my £100 reimbursement then I probably would look elsewhere the next time I want a phone. I don't say all this to determine others from buying or selling with backmarket as they do provide an outstanding service generally and my phone error is more than likely a genuine mistake - but I'm still £100 out of pocket!
Galaxy S23 Ultra 256GB - Red - Unlocked
Galaxy S23 Ultra 256GB - Red - Unlocked
Condition
Excellent
Purchased
18/04/2026
Reviewed 24/05/2026, United Kingdom.
recieved my s23 ultra was like taking a brand new phone out the box no marks or scratches on the screen or back very happy with it would highly recomend and would buy again in the future .Oh forgot to say i orderd purple but got red but i dont mind i like the red arrived well packaged and on time .
Galaxy S23 Ultra 256GB - Purple - Unlocked
Galaxy S23 Ultra 256GB - Purple - Unlocked
Condition
Excellent
Purchased
13/05/2026
Reviewed 25/09/2025, United Kingdom.
This was my first order from Back Market,and I’m really impressed. The delivery was fast and on time. I ordered fair condition of Galaxy S23 Ultra in purple , and it arrived in excellent condition, exactly as described. The color is beautiful, the phone looks and works like new, and the whole experience exceeded my expectations. Definitely happy with the quality and service!
Galaxy S23 Ultra 256GB - Purple - Unlocked
Galaxy S23 Ultra 256GB - Purple - Unlocked
Condition
Fair
Purchased
19/09/2025
Reviewed 09/07/2026, United Kingdom.
Shipping was a pain as the parcel was being shipped from one depot to another but after long shipping time and a wait it finally reached my hands and I haven’t looked back it’s the best device at the best price quality 10/10 speed 10/10 you would have thought I bought it brand new definitely recommend it to anyone on a budget Great work again backmarket
Galaxy S23 Ultra 256GB - Green - Unlocked
Galaxy S23 Ultra 256GB - Green - Unlocked
Condition
Fair
Purchased
19/06/2026
1440 x 3088Resolution
CreamColour (official name)
YesCompatible with latest Update
200 megapixelsMain camera
1.40SAR body
NoFoldable
SM-S918B/DSManufacturer Ref
234 gWeight
5GMobile network
The Samsung Galaxy S23 Ultra is a flagship smartphone that made its debut in February 2023. While it’s now a generation behind Samsung’s latest, this model still stands tall thanks to its advanced display, high-resolution camera setup, and robust performance. For those looking for top-tier specs in 2025, the S23 Ultra remains a savvy, future-proof choice, especially when you’re happy to use something that’s less-than-brand-spanking-new—but still every bit as sharp.
Key features:The Galaxy S23 Ultra is a beast for power users who need their phone to be a sketchbook, a camera, and a productivity workhorse in one. It’s ideal for creatives, professionals who like to scribble notes with the S Pen, or anyone who wants that massive screen for Netflix marathons or detailed editing. Its camera system genuinely stands out for high-resolution photography and versatility, while the large, crisp display is purpose-built for multitaskers and mobile media fanatics. If you’re after a more pocketable device, the Galaxy S23 or S23+ might suit you better, but for those chasing flagship features, this is still one of the most complete Android packages you can find—refurbished or otherwise.
Pros & Cons:| Pros | Cons |
|---|---|
| 200MP camera for ultra-detailed shots and crisp zoom. | Large size may be unwieldy for smaller hands or pockets. |
| S Pen support makes note-taking and sketching easy. | No microSD slot—expansion fans will miss it. |
| Vibrant, expansive QHD+ display with adaptive 120Hz refresh rate. | Premium build makes it a bit heavy—definitely chunky. |
| Built-in IP68 water and dust resistance. | Charging brick not included (in line with recent industry “progress”). |
Picking a refurbished Galaxy S23 Ultra is an earth-friendly nod to circular tech—keeping quality devices in use and reducing e-waste. Every device on Back Market meets strict quality checks, so you know your phone has been thoroughly tested, cleaned, and is ready for its next adventure. Learn more about our quality standards.
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