Galaxy S26 Ultra vs Galaxy S25 vs S23 Ultra – Should You Upgrade in 2026?
The Samsung Galaxy S Ultra line continues to dominate the premium smartphone market. With the recent launch of the Galaxy S26 Ultra on March 11, 2026, the upgrade landscape has shifted dramatically. The arrival of a new flagship means older models are experiencing rapid depreciation, forcing many users to re-evaluate their current devices.
If you are holding onto a device from a few years ago, you are now facing a three-way decision: should you upgrade from the Samsung Galaxy S23 Ultra to the newly discounted Samsung Galaxy S25 Ultra, jump straight to the cutting-edge S26 Ultra, or hold onto your current phone? In this post, we will compare everything from specifications and camera quality to display technology and trade-in values to help you make the most financially sound decision.
Hardware and Specification Breakdown
| Specs | Samsung Galaxy S26 Ultra | Samsung Galaxy S25 Ultra | Samsung Galaxy S23 Ultra |
|---|---|---|---|
| Display | 6.9 inches, QHD+ Dynamic AMOLED 2X, 120Hz, Vision booster, Privacy Display | 6.9 inches, 1440 x 3120 pixels, Dynamic LTPO AMOLED 2X, 120Hz, 2600 nits (peak), Corning Gorilla Armor 2 | 6.8 inches, 1440 x 3088 pixels, Dynamic AMOLED 2X, 120Hz, 1750 nits (peak), Corning Gorilla Glass Victus 2 |
| Processor Chipset | Snapdragon 8 Elite Gen 5 For Galaxy | Qualcomm Snapdragon 8 Elite For Galaxy (3 nm) | Qualcomm Snapdragon 8 Gen 2 For Galaxy (4 nm) |
| Rear Camera | 200 MP main, 50 MP periscope telephoto, 10 MP telephoto, 50 MP (Ultra-wide) | 200 MP main, 50 MP periscope telephoto, 10 MP telephoto, 50 MP (Ultra-wide) | 200MP main, 10MP periscope telephoto, 10MP telephoto, 12MP (Ultra-wide) |
| Battery Capacity | 5000mAh | 5000mAh | 5000mAh |
| Release Date | March 2026 | January 2025 | February 2023 |
| Starting Price | $1,299 | Reduced (varies by retailer) | Discontinued |
The S26 Ultra Impact: Depreciation and Trade-In Urgency
The most critical factor in your upgrade decision right now is timing. The release of the Galaxy S26 series has triggered a significant drop in the resale value of older models. According to recent market data, the Galaxy S25 series depreciated by up to 63% in its first 12 months, and the S23 Ultra is losing value even faster now that it is three generations behind.
If you plan to sell or trade in your S23 Ultra, the window to get a strong return is closing rapidly. Waiting another few months could cost you hundreds of dollars in lost trade-in value. The silver lining is that the S25 Ultra has seen price reductions across the board, making it an incredibly attractive option for those who want near-flagship performance without paying the $1,299 premium for the S26 Ultra.
Form Factor and Durability Enhancements
Starting with the overall design, the S23 Ultra and the S25 Ultra look very different yet so similar. The Galaxy S25 Ultra features flatter sides with more curvature on the corners, making the device more comfortable to handle. The S26 Ultra continues this refinement, wrapped in the slimmest Ultra chassis yet.
The most obvious design difference is the display. The S25 Ultra and S26 Ultra have flat screens, while the S23 Ultra features a curved one. Flat screens are generally preferred by users who apply screen protectors or use the S Pen frequently.
The build quality on the newer devices is levels apart from the S23 Ultra. The Galaxy S25 Ultra features a grade 5 titanium frame compared to the aluminum on the Galaxy S23 Ultra. On the front and back, the Samsung S23 Ultra features Gorilla Glass Victus 2, while the S25 Ultra upgrades to Gorilla Glass Armor 2. The difference in durability is significant, especially in drop and scratch resistance.
Screen Quality and Brightness Upgrades
Compared to the S23 Ultra, the S25 Ultraโs display is noticeably better. The new Galaxy S25 Ultra has a higher peak brightness at 2600 nits compared to 1700 on the Samsung Galaxy S23 Ultra. One of the best perks of Corningโs Gorilla Armor panel is its anti-reflective coating, which significantly reduces reflections on a display.
The S26 Ultra takes display technology a step further by introducing the worldโs first built-in Privacy Display for mobile phones, reinforcing Samsungโs commitment to privacy at a pixel level.
Power Efficiency and Thermal Management
Battery life on the newer models is better than that of the older Galaxy S23 Ultra, despite all three phones sharing a 5000mAh capacity.
What makes the S25 Ultra and S26 Ultra last much longer is the more efficient Snapdragon chipsets and Samsungโs overall system optimization. The new Snapdragon 8 Elite Gen 5 in the S26 Ultra delivers a 19% CPU performance increase and a 24% GPU performance boost over the S25 Ultra.ย
There is also a redesigned Vapor Chamber on the S26 Ultra to improve heat dissipation. All this adds up to the newer models lasting 2-3 hours longer on heavy use than the S23 Ultra.
Galaxy AI and Software Longevity
Software and AI are major selling points for the newer Galaxy S models. The S26 Ultra is powered by the most intuitive, proactive, and adaptive Galaxy AI experiences yet.
A major concern for users was whether Samsung would start charging for Galaxy AI features in 2026. Samsung has officially confirmed that fundamental Galaxy AI capabilities will remain permanently free. This means core features like Circle to Search, Live Translate, and generative photo editing will not require a subscription.
Another key software difference is longevity. The Samsung S25 Ultra and S26 Ultra are getting 7 years of major updates. The Samsung Galaxy S23 Ultra was only promised 4 years of major updates. Since it launched with Android 13, it will likely receive its final major OS update (Android 17) in late 2026 or early 2027.
Making Your Samsung Upgrade Decision
To upgrade or not to upgrade, that is the million-dollar question. Here is a breakdown to help you decide:
Upgrade to the Samsung S26 Ultra if:
- You want the absolute latest technology, including the new Privacy Display and Snapdragon 8 Elite Gen 5.
- You are willing to pay the $1,299 premium for peak performance and the longest possible software support window.
Upgrade to the Samsung S25 Ultra if:
- You want a massive leap in performance and durability over the S23 Ultra but want to take advantage of post-S26 price drops.
- You prioritize the titanium frame, flat display, and 7 years of software updates without paying full retail price.
Keep the Samsung Galaxy S23 Ultra if:
- The S23 Ultra still meets your daily needs for performance and photography.
- You rely heavily on the Bluetooth remote features of the older S Pen (which was removed in later models).
- You are comfortable accepting that its trade-in value will continue to drop sharply throughout 2026.
Funding Your Next Galaxy Device
If you decide that upgrading is the right choice for you, do not let your old device sit in a drawer, losing value. The S26 launch has already accelerated the S23 Ultra’s depreciation.ย
The standard route of trading in with your carrier often locks you into long-term contracts or offers value through bill credits spread over 24 to 36 months. In fact, understanding how carriers pay so much for your phone trade-in reveals that these deals often cost you more in the long run.
For maximum flexibility, use an independent buyback service. You receive a lump-sum payment that you can use immediately to offset the cost of your new phone. When comparing carrier trade in vs phone buyback companies, independent services consistently offer more freedom. SmartphonesPLUS offers competitive cash payouts for your used devices, featuring prepaid shipping logistics and certified data destruction.
If you are wondering where to trade in Samsung Galaxy S21, S22, and S23 phones, look no further. We make the process simple and transparent. Get an instant quote from SmartphonesPLUS today and turn your old Galaxy into working capital before its value drops further.
Unlock the True Value of Your Old Tech
Upgrading to a newer Samsung flagship is an exciting experience, but it should not come with financial stress or restrictive carrier contracts. By choosing to sell your previous device independently, you maintain complete control over your money and your mobile plan.
Whether you are moving up from the S25 Ultra or an even older model, your current phone is still worth a lot. Do not settle for delayed bill credits when you can get paid directly. Take the smart approach to your next upgrade and sell your Galaxy S series with SmartphonesPLUS for a fast, competitive cash offer.
Frequently Asked Questions
Will Samsung charge for Galaxy AI in 2026?ย
No. Samsung has confirmed that the fundamental, core Galaxy AI features will remain permanently free for users, though they may introduce separate premium features in the future.
How many updates does the S23 Ultra have left?ย
The S23 Ultra was promised 4 years of major OS updates. It will likely receive its final major Android update in late 2026 or early 2027, followed by additional security patches.
Is the S26 Ultra screen flat or curved?ย
The Galaxy S25 Ultra and S26 Ultra feature completely flat screens, which is a departure from the curved edges found on the older S23 Ultra.
Does the S26 Ultra S Pen have Bluetooth?ย
No. Starting with the S25 Ultra, Samsung removed the Bluetooth functionality from the S Pen, meaning it cannot be used as a remote shutter for the camera like the S23 Ultra’s S Pen.
Do iPhones hold value better than Android?ย
Historically, yes. The answer to do iPhones hold value better than Android has generally been yes. Apple devices tend to depreciate more slowly. However, Samsung’s recent commitment to 7 years of updates for the S25 and S26 series is helping close that gap.
Are the best Samsung carrier trade-in deals worth it?ย
It depends on your situation. While the best Samsung carrier trade-in deals look great on paper, they often require you to sign up for expensive unlimited plans that negate the savings over time.
