Two ultra-flagships. Two completely different philosophies. But which one actually deserves your money? Just a day back, iQOO launched its most powerful phone, the iQOO 15 Ultra. So, today’s comparison is obvious: iQOO 15 Ultra vs Samsung Galaxy S25 Ultra.
Both phones sit at the very top of their respective lineups, promising flagship performance, top-tier cameras, and premium features. But when it comes to real-world value, performance, and overall experience, one of them clearly makes more sense than the other. Let’s find out which one wins this ultra-flagship showdown.
Also Read: 15 Best Mobile Phone Under 15000 In 2026 You Can’t Ignore!
iQoo 15 Ultra vs Samsung Galaxy S25 Ultra: Specs At a Glance
| Feature | iQOO 15 Ultra | Samsung Galaxy S25 Ultra |
| Display | 6.82-inch 2K AMOLED, 144Hz refresh rate | 6.9-inch Dynamic AMOLED 2X, 120Hz refresh rate |
| Processor | Snapdragon 8 Elite + Adreno GPU | Snapdragon 8 Elite for Galaxy + Adreno GPU |
| Rear Cameras | 50MP main (OIS) + 50MP ultra-wide + 200MP periscope telephoto | 200MP main (OIS) + 50MP periscope + 50MP telephoto + 12MP ultra-wide |
| Front Camera | 32MP selfie camera | 12MP autofocus selfie camera |
| Battery & Charging | 6000mAh with 120W fast charging | 5000mAh with 45W fast charging + wireless charging |
| Software | Funtouch OS (Android 15) | One UI (Android 15) |
| Software Support | 3 or 4 OS updates + security patches | Up to 7 years of OS and security updates |
| Connectivity | 5G, Wi-Fi 7, Bluetooth 5.4, USB-C | 5G, Wi-Fi 7, Bluetooth 5.3, USB-C |
| Durability | IP68/IP69 rating | IP68 rating, Armor aluminum frame |
| Audio | Stereo speakers, Hi-Res audio | Stereo speakers, Dolby Atmos |
| Special Features | Performance-focused flagship, fast charging | S Pen support, Galaxy AI features |
iQoo 15 Ultra vs Samsung Galaxy S25 Ultra: Design And Display
The iQoo 15 Ultra comes with a 6.85 inches AMOLED display with peak brightness of up to 8000 nits (peak). This phone also has a 144Hz refresh rate, making it great for gaming and day-to-day activity. Moreover, it supports HDR10+, HDR Vivid, PWM, and Dolby Vision.
Talking about its design, it has an amazing, fresh design with a rectangular-shaped camera on the back. It weighs 227 grams and measures 163.7 x 76.8 x 8.7 mm. This is IP68/IP69 rated for dust-tight and water-resistant. So, it can resist high-pressure water jets and be immersed up to 1.5m for 30 minutes.
Furthermore, the brand added pressure-sensitive zones (600Hz touch-sensing) on the iQOO 15 Ultra. So, it lets the screen detect how hard you press, enabling trigger-like controls for gaming. The 600Hz touch sampling ensures ultra-fast response with minimal input lag.
The Samsung Galaxy S25 Ultra features a 6.9-inch Dynamic LTPO AMOLED 2X display, which surpasses the iQOO 15 Ultra’s 120Hz refresh rate for smoother scrolling. Additionally, it supports HDR10+ for high-quality video playback and boasts a peak brightness of 2600 nits. To enhance durability, Samsung has included Corning Gorilla Armor 2, which has a Mohs hardness rating of 6. Moreover, it comes with a DX anti-reflective coating, making it suitable for use in various conditions.
Weighing approximately 218 grams, the phone measures 162.8 x 77.6 x 8.2 mm. Its robust frame is made of Grade 5 titanium, complemented by a front made of Corning Gorilla Glass 2 and a glass back featuring Gorilla Glass Victus 2.
The device also carries an IP68 rating. It is dust-tight and water-resistant, allowing it to be submerged in water up to 1.5 meters for 30 minutes. Furthermore, the inclusion of a stylus enhances usability for tasks like drawing and taking notes.
Quick Take: The iQOO 15 Ultra focuses on gaming with a brighter panel, 144Hz refresh rate, and pressure-sensitive zones. Therefore, the Galaxy S25 Ultra offers a larger display, titanium build, anti-reflective glass, and S Pen support for productivity.
Winner: Samsung Galaxy S25 Ultra
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iQoo 15 Ultra vs Samsung Galaxy S25 Ultra: Camera And Battery
The iQoo 15 Ultra features a triple rear camera setup, which includes a 50MP wide lens, a 50MP periscope telephoto lens, and a 50MP ultra-wide lens. It utilises Vivo’s advanced image-processing engines to enhance detail, colors, and zoom clarity.
The main camera captures sharp, high-detail photos with balanced colors, while the periscope lens provides clean optical zoom for better long-distance shots. Additionally, the ultra-wide camera adds versatility, making it suitable for landscapes and group photos. For selfies, the 32MP front camera is great for social media and video calls.
The iQoo 15 Ultra is equipped with a 7400 mAh Si/C Li-Ion battery, offering 100W wired charging support and 40W wireless charging. This combination results in exceptional battery life, with reports suggesting it can easily last through intense daily use. One of its standout features for gamers is the bypass charging capability, which allows the phone to charge during gameplay without affecting battery performance.
The Samsung Galaxy S25 Ultra features one of the most advanced camera systems in the smartphone market. It has a massive 200MP main sensor with optical image stabilisation, delivering extremely detailed photos with excellent dynamic range.
The phone also includes a 10MP telephoto lens with 3x optical zoom and a 50MP periscope telephoto camera offering 5x optical zoom. So, it allows for sharp close-ups and long-distance shots. For wider scenes, there is a 50MP ultra-wide camera with a broad 120-degree field of view and dual-pixel autofocus.
In terms of features, the S25 Ultra supports laser autofocus, HDR, panorama, and advanced AI photography tools. For video, it can record up to 8K at 30fps, along with multiple 4K and slow-motion modes, plus 10-bit HDR and HDR10+ support for richer colours.
On the front, the phone has a 12MP autofocus selfie camera capable of 4K video recording, ensuring sharp selfies and high-quality video calls. Overall, the Galaxy S25 Ultra is built as a true camera-centric flagship, especially strong in zoom, detail, and professional-grade video features.
Talking about its battery, it has a slightly lower capacity of 5,000mAh, which provides 6 to 8 hours of screen-on time for most users. It also supports 45W wired charging, which can juice up to 65% in 30 minutes, 15W wireless (Qi2 Ready), and 4.5W reverse wireless charging.
Quick Take: The iQOO 15 Ultra delivers a bigger battery and faster charging, but the Galaxy S25 Ultra offers a more advanced and versatile camera system with superior zoom and video capabilities.
Winner: Samsung Galaxy S25 Ultra
Also Read: 13 Best Mobile Phones Under 25000 For Gaming, Photos & All-Day Battery
iQoo 15 Ultra vs Samsung Galaxy S25 Ultra: Performance and Software
iQoo 15 Ultra is powered by Android 16-based OriginOS 6 with up to 5 major Android upgrades. This phone is also powered by the latest Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm) chipset, making it well-suited for hardcore gamers.
iQOO also added a built-in cooling fan to keep the phone cool during intense gaming. Users can buy this phone with up to 1TB of storage and 24GB of RAM. One of the best things is that UFS 4.1 storage helps with data transfer, allows you to run multiple apps in the background, and helps save battery life.
The Samsung Galaxy S25 Ultra runs on Android 15 with One UI 8. Plus, Samsung promises up to seven years of major Android and security updates, making it one of the best phones for long-term software support. It is powered by the Qualcomm Snapdragon 8 Elite for Galaxy chipset. Notably, it delivers top-tier performance for gaming, multitasking, and heavy workloads.
Users can configure the phone with up to 1TB of storage and 16GB of RAM, ensuring smooth performance even with demanding apps and large files. The device also uses UFS 4.0 storage, which offers faster data transfer speeds, quicker app loading, and improved power efficiency.
This phone has the best Samsung software optimisation and Galaxy AI features. So, I would say the S25 Ultra is designed as a powerful all-round flagship for both productivity and entertainment.
Quick Take: The iQOO 15 Ultra targets gamers with higher RAM options, UFS 4.1 storage, and active cooling. But the Galaxy S25 Ultra balances flagship performance with industry-leading seven years of software updates.
Winner: Samsung Galaxy S25 Ultra
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Final Word
In the iQoo 15 Ultra vs Samsung S25 Ultra battle, the iQoo 15 Ultra stands out for gaming power and battery. But, Samsung wins with cameras, software, and premium design. Overall, the Galaxy S25 Ultra feels like the more complete flagship for most users.
FAQs
Which is better, iQOO 15 Ultra or Samsung Galaxy S25 Ultra?
The Galaxy S25 Ultra is better for cameras, software support, and overall flagship features. While the iQOO 15 Ultra is better for gaming performance and battery life.
Does the iQOO 15 Ultra have a better battery than the S25 Ultra?
Yes, the iQOO 15 Ultra has a much larger battery and faster charging, making it better for heavy users and gamers.
Which phone has the better camera, iQOO 15 Ultra or Galaxy S25 Ultra?
The Galaxy S25 Ultra has a more advanced camera system with a 200MP main sensor and superior zoom capabilities.
Which phone is better for gaming?
The iQOO 15 Ultra is better for gaming thanks to higher RAM options, advanced cooling, pressure-sensitive triggers, and faster touch response.
Which phone will get longer software updates?
The Samsung Galaxy S25 Ultra offers up to seven years of Android and security updates, which is longer than the iQOO 15 Ultra.
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