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Xiaomi 15 Ultra vs Samsung S25 Ultra| A Powerful Showdown
Xiaomi 15 Ultra vs Samsung S25 Ultra| The smartphone world constantly evolves. New flagship phones come out yearly, offering cutting-edge technology, innovative features, and an improved user experience.
Among the most anticipated releases in the high-end segment are the Xiaomi 15 Ultra and the Samsung Galaxy S25 Ultra. Both brands are known for their premium devices with the best specifications, designs, and features.
In this detailed comparison, we’ll break down the specifications, features, camera performance, software experience, pricing, and more so you can decide which of these two flagship devices is better for you. Whether you’re a power user, a photographer, or just looking for the best value, we’ve got you covered.
1. Design and Build Quality
Xiaomi 15 Ultra Design
The Xiaomi 15 Ultra continues the brand’s sleek, modern design tradition. With a premium glass back and metal frame, the phone offers a luxurious feel. A 6.73-inch AMOLED display with curved edges on the front provides a nearly bezel-less design.
Xiaomi’s focus on high-quality materials ensures the phone feels premium in the hand, while the IP68 rating offers water and dust resistance for added durability. Xiaomi 15 Ultra vs Samsung S25 Ultra camera comparison|
Key Design Features:
- 6.73-inch AMOLED display with curved edges
- Glass and metal construction
- IP68 water and dust resistance
- Available in multiple colors (Black, White, and Special Editions)
- Xiaomi 15 Ultra vs Samsung S25 Ultra performance
- Xiaomi 15 Ultra vs Samsung S25 Ultra
- Xiaomi 15 Ultra vs Samsung S25 Ultra
- Xiaomi 15 Ultra vs Samsung S25 Ultra
- Xiaomi 15 Ultra vs Samsung S25 Ultra
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Samsung Galaxy S25 Ultra Design
The Samsung Galaxy S25 Ultra follows a similar design philosophy. It features a 6.8-inch Dynamic AMOLED 2X display, which delivers deeper blacks and more vibrant colors.
Samsung’s focus on creating an elegant yet functional design is evident in its sleek metal frame and Corning Gorilla Glass Victus+ protection. The phone has an IP68 rating, ensuring it can withstand splashes and brief submersion in water.
Key Design Features:
- 6.8-inch Dynamic AMOLED 2X display with a 120Hz refresh rate
- Glass and metal construction
- IP68 water and dust resistance
- Available in Phantom Black, Phantom White, and more colors
2. Display Quality
Xiaomi 15 Ultra Display
Xiaomi 15 Ultra vs Samsung S25 Ultra design| The Xiaomi 15 Ultra features a stunning 6.73-inch AMOLED display with a 120Hz refresh rate, ensuring smooth animations, while the QHD+ resolution delivers sharp visuals for all content. The display supports HDR10+, which provides better contrast and brightness for compatible content, such as high-definition videos and games.
Samsung Galaxy S25 Ultra Display
The Samsung Galaxy S25 Ultra features a 6.8-inch Dynamic AMOLED 2X display, brighter than the Xiaomi 15 Ultra. With a 120Hz adaptive refresh rate, the display can dynamically adjust to conserve battery and offer ultra-smooth scrolling when needed.
The QHD+ resolution and HDR10+ support make it ideal for media consumption, with vibrant colors and deep blacks. Xiaomi 15 Ultra vs Samsung S25 Ultra battery life|
Verdict on Display:
- Both devices offer an almost identical experience in terms of resolution and refresh rate, with the Samsung Galaxy S25 Ultra having a slight edge in brightness and overall color accuracy, thanks to its Dynamic AMOLED 2X panel.
3. Performance and Hardware
Xiaomi 15 Ultra Performance
The Xiaomi 15 Ultra is powered by the Qualcomm Snapdragon 8 Gen 3 chipset, built on a 4nm process. This chipset promises excellent performance for everyday tasks and intensive applications like gaming.
With 12GB or 16GB of RAM and 256GB or 512GB of internal storage, the Xiaomi 15 Ultra ensures smooth multitasking and ample space for apps and media. Xiaomi 15 Ultra vs Samsung S25 Ultra review|
Key Performance Features:
- Snapdragon 8 Gen 3 chipset
- 12GB/16GB RAM options
- 256GB/512GB internal storage
- UFS 4.0 storage for faster read/write speeds
- Xiaomi 15 Ultra vs Samsung S25 Ultra display
Samsung Galaxy S25 Ultra Performance
Similarly, the Samsung Galaxy S25 Ultra uses the Snapdragon 8 Gen 3 (or Exynos 2400 in some regions), which delivers high-quality performance. With 12GB/16GB RAM and 256GB/512GB/1TB storage options, the Galaxy S25 Ultra delivers exceptional performance across the board, from gaming to multitasking.
Key Performance Features:
- Snapdragon 8 Gen 3 or Exynos 2400
- 12GB/16GB RAM options
- 256GB/512GB/1TB storage options
- UFS 4.0 storage for faster data transfer speeds
Verdict on Performance: Both phones are powered by the same chipset, and their performance is almost identical regarding raw power. However, the Samsung Galaxy S25 Ultra offers an additional 1TB storage option, which could be a deciding factor for users who need massive storage.
4. Camera Comparison
Xiaomi 15 Ultra Camera
The Xiaomi 15 Ultra features an impressive 200MP primary sensor, a 12MP ultra-wide lens, and a 48MP telephoto lens that supports 5x optical zoom. Xiaomi 15 Ultra vs Samsung S25 Ultra specs| Xiaomi 15 Ultra vs Samsung S25 Ultra pricing|
The camera system is equipped with advanced computational photography features, which ensure sharp and vibrant images in all lighting conditions. Xiaomi has also paid special attention to video recording capabilities, offering 8K video recording at 30fps.
Camera Features:
- 200MP primary sensor
- 12MP ultra-wide lens
- 48MP telephoto lens with 5x optical zoom
- 8K video recording
- Enhanced Night Mode for low-light photography
Samsung Galaxy S25 Ultra Camera
The Samsung Galaxy S25 Ultra takes the camera game further, with a 200-megapixel primary sensor, a 12-megapixel ultra-wide camera, and a 10-megapixel periscope telephoto lens that can achieve 10x optical zoom. Xiaomi 15 Ultra vs Samsung S25 Ultra features|
Samsung’s Space Zoom technology allows up to 100x digital zoom with advanced image stabilization. The camera is also great for low-light photography, thanks to Samsung’s advanced image processing algorithms.
Camera Features:
- 200MP primary sensor
- 12MP ultra-wide lens
- 10MP periscope telephoto lens with 10x optical zoom
- 100x Space Zoom for digital zoom
- 8K video recording at 30fps
Camera Verdict: Both smartphones feature 200-megapixel primary sensors, but the Samsung Galaxy S25 Ultra takes the lead regarding zoom capabilities, offering 10x optical zoom instead of the Xiaomi 15 Ultra’s 5x optical zoom. Additionally, Samsung’s Space Zoom is an excellent feature for users interested in extreme zoom levels.
5. Battery Life and Charging
Xiaomi 15 Ultra Battery
The Xiaomi 15 Ultra has a 5000mAh battery, typical for a flagship device. The phone supports 90W wired fast charging, which can charge the device from 0 to 100% in less than 30 minutes. It also supports 50W wireless charging, which provides the convenience of quick top-ups without a wired connection.
Samsung Galaxy S25 Ultra Battery
The Samsung Galaxy S25 Ultra also features a 5000mAh battery. However, it supports 45W wired fast charging (slower than Xiaomi’s) but still ensures a full charge in under an hour. The wireless charging speed is limited to 15W, which is slower than Xiaomi’s 50W wireless charging.
Verdict on Battery and Charging: The Xiaomi 15 Ultra leads with its faster wired and wireless charging speeds. However, both phones should comfortably last through a full day of usage. Xiaomi 15 Ultra vs Samsung S25 Ultra pros and cons| Xiaomi 15 Ultra vs Samsung S25 Ultra pros and cons|
6. Software Experience
Xiaomi 15 Ultra Software
The Xiaomi 15 Ultra runs on Android 14-based MIUI 15, which offers a highly customizable interface with a wide range of features. MIUI is known for its unique design elements, such as its large icons, customizable themes, and advanced multitasking features. Xiaomi also integrates various AI features to improve battery life and camera performance.
Samsung Galaxy S25 Ultra Software
The Samsung Galaxy S25 Ultra runs on Android 14-based One UI 6, a cleaner, more sophisticated interface than MIUI. Samsung has focused on delivering an intuitive experience with minimal bloatware and is improving multitasking capabilities, primarily through its Samsung DeX feature for desktop-like functionality.
Verdict on Software: The software experience comes down to personal preference. MIUI is feature-rich and highly customizable, while One UI offers a smoother and more consistent experience with regular software updates and long-term support.
7. Pricing and Availability
Xiaomi 15 Ultra Pricing
The Xiaomi 15 Ultra is generally priced more competitively than the Samsung Galaxy S25 Ultra. The base model with 12GB of RAM and 256GB of storage starts at around USD 999.
Samsung Galaxy S25 Ultra Price
The Samsung Galaxy S25 Ultra starts at a higher price, around $USD 1,199 for the base model, which has 12GB of RAM and 256GB of storage. Higher storage and additional features push the price up for the 1TB variant.
Which phone has the best camera, Xiaomi 15 Ultra or Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra has a more versatile camera setup, with 10x optical zoom and 100x space zoom compared to the Xiaomi 15 Ultra’s 5x optical zoom.
Does the Xiaomi 15 Ultra support wireless charging?
YeTheiaomi 15 Ultra supports 50W wireless charging faster than most other flagship phones.
Which phone has a better display?
Both phones have excellent displays, but the Samsung Galaxy S25 Ultra has the advantage of a Dynamic AMOLED 2X panel, which offers higher brightness levels and better color accuracy.
How is the battery life on these devices?
Both phones have a 5000mAh battery, suitable for a full day of use. However, the Xiaomi 15 Ultra has fast-charging capabilities.
Which phone is more affordable?
The Xiaomi 15 Ultra is generally more affordable, starting at around USD 999, while the Samsung Galaxy S25 Ultra starts at $USD 1,199
Conclusion
The Xiaomi 15 Ultra and the Samsung Galaxy S25 Ultra are at the forefront of smartphone technology, offering high-quality cameras, performance, and design. If you prioritize charging speed, camera zoom, and value for money, the Xiaomi 15 Ultra might be a better choice.
However, if you’re looking for the best display, camera features, and long-term software support, the Samsung Galaxy S25 Ultra might be your best device.