Samsung Galaxy S23 Ultra: A Complete Buyer’s Guide 2026

Buying a premium smartphone in 2026 is no longer simply about choosing the newest model. For many buyers, especially those considering a refurbished phone, an older flagship can offer better value than a newer mid-range device.

The Samsung Galaxy S23 Ultra is a good example.

Originally launched as Samsung’s top-end Galaxy S23 model, the S23 Ultra combined a 6.8-inch QHD+ Dynamic AMOLED 2X display, Snapdragon 8 Gen 2 for Galaxy processor, 200MP main camera, 3x and 10x optical telephoto cameras, 5,000mAh battery and integrated S Pen. Samsung also committed the S23 series to four generations of Android/One UI upgrades and five years of security updates.

But is the S23 Ultra still a smart purchase in 2026?

For the right buyer, yes.

The important question is not whether it is newer than today's flagship phones. It is whether the S23 Ultra offers enough performance, camera capability, battery life, software support and premium features for its current price.

This guide explains what you should know before buying a Samsung Galaxy S23 Ultra in 2026, including what to look for when buying refurbished in Ireland.

Quick Answer: Should You Buy the Samsung Galaxy S23 Ultra in 2026?

The Samsung Galaxy S23 Ultra can still be an excellent buy in 2026, particularly when purchased refurbished at the right price.

Its Snapdragon 8 Gen 2 for Galaxy processor remains powerful, the 200MP camera system is highly versatile, the 6.8-inch 120Hz display is still premium, and the built-in S Pen gives it functionality that many competing smartphones do not offer.

However, it is important to remember that the S23 Ultra is a 2023 flagship.

That means you should compare its current price and remaining software support with newer Samsung models before buying.

For refurbished buyers, condition is equally important. Battery health, screen condition, camera performance, S Pen functionality, IMEI status, warranty and return protection can make a bigger difference than the model name alone.

Samsung Galaxy S23 Ultra: Key Specifications

The S23 Ultra remains impressive on paper.

Feature	Samsung Galaxy S23 Ultra
Display	6.8-inch Dynamic AMOLED 2X
Resolution	QHD+
Refresh rate	Up to 120Hz
Processor	Snapdragon 8 Gen 2 for Galaxy
Main camera	200MP
Ultra-wide camera	12MP
Telephoto cameras	10MP 3x optical + 10MP 10x optical
Front camera	12MP
Battery	5,000mAh
S Pen	Built in
Water resistance	IP68
Connectivity	5G, Wi-Fi 6E, Bluetooth 5.3
Storage options	256GB, 512GB and 1TB depending on market/configuration

Samsung's official specifications confirm the S23 Ultra's 6.8-inch QHD+ display, 200MP main camera, dual telephoto system, Snapdragon 8 Gen 2 for Galaxy processor and 5,000mAh battery.

These specifications explain why the S23 Ultra still competes strongly with many newer smartphones.

Design and Build Quality

The S23 Ultra was designed as a premium flagship and still feels like one.

Its large body, premium construction and curved-edge display give it a distinctive Ultra-series appearance. Samsung also introduced Corning Gorilla Glass Victus 2 on the S23 series, while the phone carries an IP68 rating for water and dust resistance.

The downside is size.

At approximately 234g, the S23 Ultra is not a lightweight compact smartphone.

For people who enjoy a large screen, that size can be an advantage. For users who prefer one-handed operation or smaller phones, it can become tiring over extended periods.

Who will like the design?

The S23 Ultra makes sense if you want:

• A large premium display

• A substantial flagship feel

• Built-in S Pen functionality

• A durable premium construction

• A phone designed for productivity and multimedia

If portability is your priority, however, a smaller Galaxy model may be more comfortable.

Is the S23 Ultra Display Still Good in 2026?

Yes.

The display remains one of the strongest reasons to buy the S23 Ultra.

It features a 6.8-inch QHD+ Dynamic AMOLED 2X panel with a 1–120Hz adaptive refresh rate. Samsung also included Vision Booster technology to improve visibility in different lighting conditions.

In everyday use, this means the screen works particularly well for:

• Netflix and YouTube

• Gaming

• Reading

• Social media

• Photo editing

• Web browsing

• Productivity

• Multitasking

The 120Hz refresh rate also makes scrolling and animations feel considerably smoother than traditional 60Hz displays.

If display quality is one of your highest priorities, the S23 Ultra remains a strong choice.

How Good Is the S23 Ultra Camera in 2026?

The camera system is arguably the phone's biggest selling point.

Samsung equipped the S23 Ultra with a 200MP main camera, 12MP ultra-wide camera, 10MP 3x optical telephoto and 10MP 10x optical telephoto. It also supports up to 100x Space Zoom using optical and digital technologies.

The important thing is not simply the 200MP number.

The real advantage is the combination of different focal lengths.

You can use the:

• Main camera for everyday photography

• Ultra-wide camera for landscapes and groups

• 3x telephoto for portraits and closer subjects

• 10x telephoto for distant subjects

That versatility makes the S23 Ultra particularly useful for travel, events, architecture and outdoor photography.

Is 200MP always better?

Not necessarily.

A higher megapixel count does not automatically guarantee better photographs.

Image quality also depends on:

• Sensor size

• Lens quality

• Image processing

• Autofocus

• Stabilisation

• Lighting

• Software

This is why the S23 Ultra's complete camera system matters more than its headline 200MP specification.

Is the S23 Ultra Good for Video?

Yes.

The S23 Ultra is capable of high-quality video recording and provides a broad range of shooting options.

Its stabilisation, multiple cameras and high-end processing make it suitable for users who record:

• Travel videos

• Family moments

• Social media content

• Events

• Short-form videos

• Product footage

• Everyday clips

For casual creators, the phone can still provide plenty of capability without needing a dedicated camera.

However, serious creators should also consider storage capacity because high-resolution photographs and video files can consume storage quickly.

S23 Ultra Performance: Is Snapdragon 8 Gen 2 Still Fast Enough?

Absolutely.

The S23 Ultra uses the Snapdragon 8 Gen 2 Mobile Platform for Galaxy, a customised version of Qualcomm's high-end processor designed specifically for Samsung's flagship series.

In 2026, it remains capable of handling demanding everyday workloads.

You can comfortably use it for:

• Social media

• Multitasking

• Streaming

• Photography

• Video editing

• Productivity apps

• Navigation

• Gaming

• Large applications

This is one of the biggest advantages of buying an older flagship instead of a newer budget phone.

A phone's age does not automatically make its processor slow.

The S23 Ultra started life as a premium performance device, and its hardware remains powerful enough for demanding users.

Is the S23 Ultra Good for Gaming?

Yes.

The S23 Ultra was designed with demanding gaming in mind. Samsung highlighted its Snapdragon platform, improved cooling and larger vapour chamber, as well as support for advanced graphics technologies such as real-time ray tracing.

The combination of:

• Snapdragon 8 Gen 2 for Galaxy

• 120Hz display

• Large screen

• 5,000mAh battery

• Advanced cooling

makes it suitable for demanding mobile games.

Long gaming sessions can still increase heat and battery consumption, so performance should always be considered alongside thermal behaviour and battery condition—particularly on refurbished devices.

How Good Is the S Pen?

The integrated S Pen is one of the features that makes the S23 Ultra different from most conventional smartphones.

It can be useful for:

• Handwritten notes

• Sketching

• Document annotation

• Productivity

• Quick editing

• Marking screenshots

• Precision interaction

For business users, students, professionals and anyone who enjoys handwriting on a smartphone, the S Pen can be genuinely useful.

If you never use a stylus, however, you should not pay a premium simply because the S Pen is included.

Its value depends on your habits.

Battery Life and Charging

The S23 Ultra has a 5,000mAh battery, which remains a substantial capacity for a flagship smartphone. Samsung lists 45W wired charging, Fast Wireless Charging 2.0 and Wireless PowerShare among its charging capabilities.

Actual battery life depends on usage.

Heavy 5G use, gaming, navigation, camera use and high screen brightness can drain the battery faster than lighter activities such as messaging or reading.

This becomes particularly important when buying refurbished.

A 2023 phone may have experienced significantly more charging cycles than a newer device.

Therefore, do not judge a refurbished S23 Ultra only by its battery capacity on paper.

Ask about:

• Battery testing

• Battery-health standards

• Charging performance

• Warranty coverage

• Replacement policy if applicable

Software Support: How Long Will the S23 Ultra Last?

This is an important consideration in 2026.

Samsung states that the Galaxy S23 series is eligible for four generations of One UI and Android OS upgrades and five years of security updates.

That is strong support for a phone originally released in 2023.

However, there is an important difference between buying an S23 Ultra and buying a newer S24 Ultra.

The S24 series received Samsung's longer seven-generation OS and seven-year security commitment, while the S23 series follows the earlier four-generation OS and five-year security policy.

This means the S23 Ultra can still be a very capable phone in 2026, but its remaining official support period is shorter than the S24 Ultra's.

For long-term buyers, this difference should be part of the price comparison.

What Storage Should You Choose?

The S23 Ultra was offered in configurations including 256GB, 512GB and 1TB, with RAM/storage combinations varying by market.

Choosing the correct storage is important because the phone does not rely on a traditional microSD card for storage expansion.

1. 256GB

Suitable for:

• Everyday users

• Social media

• Streaming

• Normal photography

• Moderate gaming

2. 512GB

A better choice for:

• Frequent photographers

• Gamers

• People who record lots of video

• Long-term users

3. 1TB

Best suited to:

• Heavy video recording

• Large media libraries

• Professional or advanced users

• People who want maximum internal storage

If two refurbished S23 Ultra units have similar condition and warranty, the higher-storage model can be worth considering if the price difference is reasonable.

S23 Ultra vs S24 Ultra: Which Should You Buy?

This is one of the most important comparisons for anyone shopping for a refurbished Samsung flagship.

The S24 Ultra is newer and offers several advantages, including a newer processor generation, titanium construction, a flatter display, Gorilla Armor and Samsung's much longer seven-year software-support commitment.

The S23 Ultra, however, remains extremely capable and can make more financial sense when its price is substantially lower.

The decision can be simplified:

Your Priority	Better Choice
Lower purchase price	S23 Ultra
Newer hardware	S24 Ultra
Longer software support	S24 Ultra
10x optical telephoto	S23 Ultra
Titanium design	S24 Ultra
S Pen	Both
Large QHD+ display	Both
Flagship performance	Both
Best refurbished value	Depends on price and condition

For a detailed comparison, read Samsung Galaxy S23 Ultra vs S24 Ultra: Which Is Better in 2026?

The key point is that the S24 Ultra is not automatically the better financial decision.

If an excellent-condition S23 Ultra costs considerably less, the savings may outweigh the newer model's advantages for many buyers.

S23 Ultra vs Newer Mid-Range Samsung Phones

Another interesting comparison is an older flagship against a newer mid-range phone.

A newer mid-range Samsung may offer:

• Newer battery

• More recent hardware

• Longer remaining support

• Lower price

But the S23 Ultra can offer:

• Better camera versatility

• QHD+ display

• Premium construction

• S Pen

• Flagship processor

• Advanced telephoto cameras

• Higher-end overall hardware

This is why buyers should compare actual features and condition, not just release year.

A newer phone is not automatically superior in every category.

For more options, see Best Samsung Phones to Buy in Ireland in 2026 | Top Picks.

Should You Buy a Refurbished Samsung S23 Ultra?

For many buyers, yes.

A refurbished S23 Ultra can give you access to premium flagship hardware without paying the original launch price.

But the word "refurbished" does not guarantee identical quality between sellers.

Two S23 Ultra phones can have very different histories and conditions.

Before buying, check:

• Battery condition

• Display condition

• Camera lenses

• S Pen functionality

• USB-C port

• Speakers

• Microphones

• Buttons

• IMEI status

• Network compatibility

• Storage

• Cosmetic grade

• Warranty

• Returns policy

A strong refurbishment process should involve proper testing rather than simply cleaning the exterior and resetting the phone.

For a broader checklist, read What to Check Before Buying a Used or Refurbished Phone? 2026 Guide.

What Should Irish Buyers Check Before Buying?

If you are buying a refurbished S23 Ultra in Ireland, several practical checks are particularly important.

Network compatibility

Confirm that the phone is unlocked and compatible with your intended Irish network.

1. IMEI status

The device should have a legitimate IMEI and should not be blocked or reported as lost or stolen.

2. Physical condition

Check the screen, frame, rear panel and camera glass carefully.

3. Battery

Ask how the battery has been tested and whether the seller provides a minimum battery-health standard.

4. Warranty

Understand exactly what the warranty covers and how claims are handled.

5. Returns

Read the seller's return conditions before ordering.

6. Device grade

Cosmetic grading should be clearly explained rather than relying on vague descriptions.

For more Ireland-focused advice, see How to Choose a Refurbished Phone in Ireland: 2026 Guide.

What Does a Good Refurbished S23 Ultra Look Like?

A good refurbished device should offer more than an attractive price.

Ideally, the seller should provide clear information about:

Condition: The cosmetic grade should be explained.

Functionality: Major components should have been tested.

Battery: There should be a clear battery testing or health policy.

Network: The phone should be suitable for the buyer's intended network.

Warranty: The coverage should be stated clearly.

Returns: The customer should understand the return process.

Data: The previous owner's data should have been removed and the device reset appropriately.

This is why choosing the seller can be almost as important as choosing the model.

How to Check an S23 Ultra Before Buying

If you are buying a refurbished S23 Ultra, use this practical checklist.

1. Test the display

Look for cracks, deep scratches, dead pixels, unusual colour issues or touch problems.

2. Test every camera

Check the main, ultra-wide and telephoto cameras. Test autofocus, zoom, video and flash.

3. Test the S Pen

Remove and reinsert the S Pen and confirm that it is recognised and functions correctly.

4. Check the battery

Ask what testing has been performed and whether the seller provides a battery-health threshold.

5. Test charging

Check USB-C charging and make sure the connection is stable.

6. Check speakers and microphones

Play audio and make a test recording or call.

7. Test connectivity

Check Wi-Fi, Bluetooth, mobile signal, NFC and 5G where possible.

8. Check the IMEI

Confirm that the IMEI is legitimate and appropriate for your intended use.

9. Check storage

Make sure the advertised storage matches the actual device.

10. Read the warranty

Do not assume every refurbished seller offers identical protection.

What Are the Biggest Reasons Not to Buy the S23 Ultra?

Although the S23 Ultra remains impressive, it is not perfect.

1. Large size

The 6.8-inch display and approximately 234g weight make it a substantial phone.

2. Older software-support window

Its four-generation OS and five-year security commitment is shorter than the S24 series' seven-year commitment.

3. Battery age

A refurbished unit may have experienced years of use, so battery condition needs careful checking.

4. Newer hardware exists

If you want the latest processor, newest design and maximum remaining software support, a newer flagship may be a better choice.

5. Price can change the decision

The S23 Ultra is only good value if its current price reflects its age and condition.

Who Should Buy the Samsung Galaxy S23 Ultra in 2026?

The S23 Ultra is particularly suitable for buyers who want:

• Flagship performance

• A large QHD+ display

• Excellent photography

• Long-range optical zoom

• Built-in S Pen

• Strong gaming performance

• Premium build quality

• 5G connectivity

• Large battery

• High-end hardware at a potentially lower refurbished price

It is especially attractive if you can find a well-maintained unit with a healthy battery and meaningful warranty.

Who Should Choose a Different Phone?

You may be better served by another device if:

• You want the newest Samsung flagship

• You need the longest possible software-support period

• You prefer a compact phone

• You do not need an S Pen

• You want the newest camera processing

• Your budget is limited

• You prioritise a brand-new battery

• You want a newer-generation device

In those situations, compare the S23 Ultra with newer Samsung models before making a decision.

Is the S23 Ultra Still Good Value in Ireland?

There is no single price that automatically makes an S23 Ultra a good or bad purchase.

A fair buying decision depends on:

• Storage

• Cosmetic condition

• Battery condition

• Warranty

• Seller reputation

• Included accessories

• Current market price

• Price of newer alternatives

The right question is not:

"How cheap is the S23 Ultra?"

Instead, ask:

"What am I getting for this money compared with the alternatives?"

That approach helps you avoid buying an older flagship simply because it appears cheap.

If your budget is below €300, you can also compare alternatives in Best Budget Refurbished Phones Under €300 Ireland 2026.

S23 Ultra vs Refurbished Newer Samsung: Which Is Better?

This decision depends heavily on the price difference.

Choose the S23 Ultra if:

• It is substantially cheaper

• You want the 10x optical telephoto camera

• You want the S Pen

• You value flagship hardware

• The battery is healthy

• The warranty is strong

Choose a newer model if:

• The price difference is relatively small

• You want longer remaining support

• You want a newer battery

• You want newer processing hardware

• You plan to keep the phone for many years

The best purchase is therefore not always the newest phone.

It is the phone that provides the best combination of condition, features, support and price.

Final Verdict: Should You Buy the Samsung Galaxy S23 Ultra in 2026?

Yes, the Samsung Galaxy S23 Ultra is still a strong smartphone to consider in 2026.

Its Snapdragon 8 Gen 2 for Galaxy processor remains powerful, its 6.8-inch 120Hz QHD+ display is still premium, and its 200MP camera system with 3x and 10x optical telephoto cameras gives it excellent photographic versatility.

The integrated S Pen also gives it a productivity advantage that many competing smartphones cannot match.

The biggest consideration is no longer whether the S23 Ultra is technically powerful enough.

It is.

The real question is how much you are paying for it and what condition it is in.

For an Irish buyer in 2026, a well-refurbished S23 Ultra with a healthy battery, clear condition grading, network compatibility, warranty and a competitive price can still be an excellent flagship purchase.

However, if the price difference between an S23 Ultra and S24 Ultra is small, the newer model's longer software-support commitment becomes much more attractive.

Final Buying Recommendation

Buy the S23 Ultra if you want maximum flagship features for your money and find a well-conditioned device at a sensible price.

Choose the S24 Ultra or another newer Samsung if longer software support, newer hardware and maximum remaining lifespan matter more than saving money.

For refurbished buyers, always prioritise:

Condition + battery + warranty + storage + software support + price

rather than choosing a phone simply because it carries the Ultra name.

Frequently Asked Questions

1. Is the Samsung Galaxy S23 Ultra still worth buying in 2026?

Yes. It remains a powerful flagship with an excellent display, versatile cameras, S Pen and strong performance, especially when priced competitively.

2. Is the Samsung S23 Ultra good in 2026?

Yes. Its Snapdragon 8 Gen 2 for Galaxy processor, 200MP camera system and 120Hz QHD+ display remain highly capable.

3. Is the Samsung S23 Ultra good for photography?

Yes. Its 200MP main camera, ultra-wide camera and 3x and 10x optical telephoto cameras provide excellent versatility.

4. Does the Samsung S23 Ultra have an S Pen?

Yes. The S Pen is built directly into the Galaxy S23 Ultra.

5. Is the S23 Ultra good for gaming?

Yes. Its Snapdragon 8 Gen 2 for Galaxy processor, 120Hz display and advanced cooling make it suitable for demanding mobile games.

6. How long will the Samsung S23 Ultra receive updates?

Samsung states that the S23 series is eligible for four generations of One UI and Android OS upgrades and five years of security updates.

7. Should I buy a refurbished Samsung S23 Ultra?

Yes, if the device has been properly tested and comes with clear condition information, suitable battery standards, warranty and return protection.

8. What should I check when buying a refurbished S23 Ultra?

Check the display, cameras, S Pen, battery, charging port, speakers, connectivity, IMEI, storage, cosmetic condition, warranty and returns policy.

9. Is the S23 Ultra better than the S24 Ultra?

The S24 Ultra is newer and has longer software support, while the S23 Ultra can offer better value when purchased at a significantly lower price.

10. Is the Samsung S23 Ultra good for long-term use?

Yes, but remaining software support and battery condition should be considered, particularly when buying a refurbished unit.

11. What storage should I choose for the S23 Ultra?

256GB is suitable for many users, while 512GB or 1TB is better for heavy photographers, gamers and video creators.

12. Is the S23 Ultra waterproof?

It has an IP68 water and dust-resistance rating, although water resistance can be affected by damage or wear and should not be treated as permanent waterproofing.

13. Is the S23 Ultra worth buying in Ireland?

Yes, provided the price, condition, battery, warranty and network compatibility make sense compared with newer alternatives.

14. What makes the S23 Ultra a good refurbished phone?

Its combination of flagship performance, premium display, advanced cameras, S Pen and high-end construction can provide strong value when the refurbished device is in good condition.

15. Should I buy the S23 Ultra or a newer mid-range Samsung?

The S23 Ultra offers more flagship-level hardware, while a newer mid-range model may offer a newer battery and longer remaining support. Compare the total value rather than the release year alone.

Explore Samsung Phones in Ireland

If the Galaxy S23 Ultra matches your requirements, compare its price, condition and storage with other Samsung options before making your final decision.

For buyers considering the next generation, the Samsung S24 Ultra is a natural comparison. For lower-cost alternatives, Samsung's A-series models can be worth considering when flagship cameras, S Pen functionality and maximum performance are not priorities.

The goal should be to choose the device that gives you the right combination of performance, camera capability, battery condition, software support and value.

About Fonez4u Limited

Fonez4u Limited
2 Eyre Square, Galway, H91 PT3F
Phone / WhatsApp: 085 133 0999

For refurbished smartphone buyers, the most important factors are clear device condition, appropriate testing, warranty coverage and a straightforward returns policy.

Reviewed By

fonez4u2 Technical Team | Refurbished Smartphone Specialists

This guide has been reviewed with a focus on practical refurbished-phone buying factors, including device condition, battery health, performance, camera capability, software support, storage and overall value for Irish buyers.

About the Author

Shah Zaib is a technology content writer focusing on refurbished smartphones, smartphone comparisons, device care and consumer technology.

His content focuses on turning technical specifications and buying considerations into practical information that helps consumers compare smartphones more confidently.

For this guide, the focus is on the factors that matter when evaluating the Samsung Galaxy S23 Ultra in 2026, including performance, camera capability, battery condition, software support, storage, refurbished-device quality and overall value.

Sources & Verification

This guide has been checked against Samsung's official Galaxy S23 Ultra specifications and support information, including its display, processor, camera system, battery, S Pen functionality, connectivity and IP68 rating. Samsung's published support information confirms four generations of One UI and Android OS upgrades and five years of security updates for the Galaxy S23 series.

Refurbished-phone buying advice in this guide focuses on practical checks such as battery condition, IMEI status, network compatibility, cosmetic condition, warranty and returns. Actual device condition, pricing and availability may vary by seller and individual handset.

Last Updated: September 2026