Are your brand new phones factory sealed?

Yes. Brand new phones are factory-sealed, never used, and sold in original packaging with the manufacturer's standard accessories unless the listing states otherwise.

What warranty do brand new phones include?

Brand new phones include a standard manufacturer warranty. With some brands this may be extended to up to 24 months — check the product listing for details.

Are your brand new phones unlocked?

Yes. Unless otherwise stated, brand new phones are fully unlocked and compatible with UK networks including Vodafone, O2, EE, and Three.

What accessories come with a brand new phone?

Brand new phones include the original box and the standard accessories supplied by the manufacturer. Check the product listing for the exact contents.

Can I return the phone if I change my mind?

Yes. We offer a 30-day return policy on most phones. The phone must be returned in the same condition as received. See our return policy for full details.

How long does delivery take?

We offer fast and secure UK delivery, usually within 1 to 2 working days. Tracking information is provided once your order ships.

Do you offer "Buy Now, Pay Later" or installment options?

Yes. Buy Now, Pay Later options are available through trusted payment providers at checkout. Terms and availability vary by device.

Is it safe to buy a brand new phone from Zextons?

Yes. At Zextons Tech Store, brand new devices are genuine, sealed products backed by the manufacturer warranty and our customer support.

Samsung Galaxy S25 Ultra - Unlocked

Name: Samsung Galaxy S25 Ultra - Unlocked
Brand: Samsung
SKU: SGS25U-5G-512GB-TJBK-N
Price: 739.99 GBP
Availability: InStock
Rating: 4.5 (10 reviews)

UnlockedDual Sim (Physical Sim + eSIM)

7 watching right now

4.5/5 (10 reviews)

Trustpilot

Free Next Day Delivery

£739.99

Free UK delivery, est. 4–7 Nov

or 3 interest-free payments of £246.66 withKlarna

Product Specifications

Display: Dynamic LTPO AMOLED 2X
Size: 6.9 Inches
OS: Android 15
Chipset: Snapdragon 8 Elite
CPU: Octa-core
GPU: Adreno 830
Internal Memory: 256GB 12GB RAM, 512GB 12GB RAM
Main Camera: 200 MP
SIM: Nano SIM + eSIM
Resolution: 1440 x 3120 Pixels
Battery Type: Li-Ion 5000 mAh
Connector: USB Type-C 3.2
Network: 5G
SD Card Slot: No
Launch: 2025
Weight: 218 g

Perks & Benefits Included

Warranty
Refurbished Device: 18-Month Warranty. If the item has a technical defect within 18 months, we will repair or replace it.
Brand New Device: All brand new devices come with a standard 12-month manufacturer warranty. With some brands, this warranty may be extended to up to 24 months.
30-Day Return Policy: You can return your item within the first 30 days of receiving it, no questions asked.
Fast Free Shipping: Enjoy fast, free delivery on all orders over £30.
Customer Support: We are here for you. Expect a response within 1 business day.
Pay in Instalments: Spread the cost with easy monthly payments over 3, 6, or 12 months using Klarna or PayPal.

FAQs

Are your brand new phones factory sealed?: Yes. Brand new phones are factory-sealed, never used, and sold in original packaging with the manufacturer's standard accessories unless the listing states otherwise.
What warranty do brand new phones include?: Brand new phones include a standard manufacturer warranty. With some brands this may be extended to up to 24 months — check the product listing for details.
Are your brand new phones unlocked?: Yes. Unless otherwise stated, brand new phones are fully unlocked and compatible with UK networks including Vodafone, O2, EE, and Three.
What accessories come with a brand new phone?: Brand new phones include the original box and the standard accessories supplied by the manufacturer. Check the product listing for the exact contents.
Can I return the phone if I change my mind?: Yes. We offer a 30-day return policy on most phones. The phone must be returned in the same condition as received. See our return policy for full details.
How long does delivery take?: We offer fast and secure UK delivery, usually within 1 to 2 working days. Tracking information is provided once your order ships.
Do you offer "Buy Now, Pay Later" or installment options?: Yes. Buy Now, Pay Later options are available through trusted payment providers at checkout. Terms and availability vary by device.
Is it safe to buy a brand new phone from Zextons?: Yes. At Zextons Tech Store, brand new devices are genuine, sealed products backed by the manufacturer warranty and our customer support.

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brand new

Select a storageSelect a condition first

256GB£674.99512GB£739.99

Select a colourSelect condition and storage first

titanium jet blacktitanium blacktitanium graytitanium silverbluewhite titaniumjade green

Comes with

Charging Cable
Protection Bundle
SIM Tool

Select a free SIM (optional)

Vodafone

Three

Brand New

Samsung Galaxy S25 Ultra - Unlocked - Main view

The Samsung Galaxy S25 Ultra is a premium flagship smartphone, offering cutting-edge AI technology, a 200MP quad-camera system, and ultra-fast Snapdragon 8 Elite performance. Featuring a 6.9-inch Dynamic AMOLED 2X display, S Pen integration, and a 5000mAh battery with 45W fast charging, this brand-new S25 Ultra ensures seamless multitasking, pro-level photography, and exceptional durability with a titanium frame.

With storage options of 256GB and 512GB, 5G connectivity, and a 1-year Seller’s warranty, the Galaxy S25 Ultra is built for professionals, content creators, and tech enthusiasts who demand the best.