Xiaomi 15 Ultra Full Specification 2025

The Xiaomi 15 Ultra is set to be one of the most powerful and feature-packed smartphones of 2025. As the successor to the Xiaomi 14 Ultra, this device promises cutting-edge technology, superior camera capabilities, and top-tier performance. Xiaomi continues to push boundaries with its Ultra series, and the Xiaomi 15 Ultra is no exception.
In this detailed specification breakdown, we will explore every aspect of the Xiaomi 15 Ultra, including its design, display, performance, camera system, battery life, software, and additional features.
Xiaomi 15 Ultra: Key Specifications at a Glance
Category | Specifications |
---|---|
Model | Xiaomi 15 Ultra |
Release Date | Expected Q1 2025 |
Dimensions | 163.7 x 74.6 x 9.5 mm |
Weight | ~230g |
Build | Ceramic Back, Aluminum Frame, Gorilla Glass Victus 3 |
IP Rating | IP68 Dust/Water Resistant |
Colors | Black, White, Titanium Gray, Green |
- Display: 6.81-inch AMOLED LTPO 3.0
- Resolution: 3200 x 1440 (QHD+)
- Refresh Rate: 1-120Hz Adaptive
- Peak Brightness: 3000 nits
- Protection: Gorilla Glass Victus 3
- HDR Support: Dolby Vision, HDR10+
- Chipset: Qualcomm Snapdragon 8 Gen 4
- CPU: Octa-core (1x Cortex-X5 @ 3.8GHz + 3x Cortex-A7xx @ 3.2GHz + 4x Cortex-A5xx @ 2.3GHz)
- GPU: Adreno 760
- RAM: 12GB / 16GB LPDDR5X
- Storage: 256GB / 512GB / 1TB UFS 4.0

Rear Cameras – 50MP (f/1.6) Main (1-inch Sony IMX989)
– 50MP (f/2.2) Ultra-Wide (128° FoV)
– 50MP (f/2.0) Periscope Telephoto (5x Optical Zoom)
– 50MP (f/2.4) Telephoto (3x Optical Zoom)
– Laser Autofocus, Multi-directional PDAF
Front Camera: 32MP (f/2.0) Under-Display Selfie Camera
Video Recording: 8K@30fps, 4K@120fps, Dolby Vision HDR
- Battery: 5500mAh Silicon-Carbon Battery
- Charging: 120W Wired HyperCharge, 80W Wireless, 10W Reverse Wireless
- OS: HyperOS 2.0 (Based on Android 15)
- Connectivity: 5G (SA/NSA), Wi-Fi 7, Bluetooth 5.4, NFC, USB Type-C 3.2
- Security: Ultrasonic Under-Display Fingerprint, AI Face Unlock
- Audio: Stereo Speakers (Tuned by Harman Kardon), No 3.5mm Jack
Price (Expected): $1,299 (12GB/256GB) |
Detailed Breakdown of Xiaomi 15 Ultra Specifications
1. Design & Build Quality
The Xiaomi 15 Ultra continues Xiaomi’s premium design language with a ceramic back, aluminum frame, and Gorilla Glass Victus 3 protection. The device is IP68-rated for dust and water resistance, ensuring durability.
- Dimensions: 163.7 x 74.6 x 9.5 mm
- Weight: ~230g (slightly heavier due to larger battery and camera module)
- Colors: Black, White, Titanium Gray, and a special Eco Green variant.
- Ergonomics: Curved edges for better grip, tactile buttons, and a redesigned camera bump.

2. Display: Best-in-Class AMOLED Panel
The Xiaomi 15 Ultra features a stunning 6.81-inch AMOLED LTPO 3.0 display with a 1-120Hz adaptive refresh rate.
- Resolution: QHD+ (3200 x 1440 pixels)
- Brightness: 3000 nits peak brightness (for HDR content)
- Protection: Gorilla Glass Victus 3
- HDR Support: Dolby Vision, HDR10+
- Touch Sampling Rate: 480Hz (for gaming)
3. Performance: Snapdragon 8 Gen 4 & Next-Gen Cooling
Powered by the Qualcomm Snapdragon 8 Gen 4, the Xiaomi 15 Ultra delivers desktop-level performance.
- CPU: Octa-core (1x Cortex-X5 @ 3.8GHz + 3x Cortex-A7xx @ 3.2GHz + 4x Cortex-A5xx @ 2.3GHz)
- GPU: Adreno 760 (Ray Tracing Support)
- RAM: 12GB / 16GB LPDDR5X
- Storage: 256GB / 512GB / 1TB UFS 4.0
- Cooling System: Vapor Chamber + Graphene Layer for sustained performance
4. Camera: Leica-Tuned Quad Camera System
Xiaomi continues its partnership with Leica, refining the camera capabilities further.
Rear Cameras:
- 50MP Main (Sony IMX989, 1-inch sensor, f/1.6, OIS, Laser AF)
- 50MP Ultra-Wide (128° FoV, f/2.2, Macro Mode)
- 50MP Periscope Telephoto (5x Optical, 120x Digital Zoom, OIS)
- 50MP Telephoto (3x Optical, OIS)

Front Camera:
- 32MP Under-Display Selfie Camera (f/2.0, AI Beautification, 4K Video)
Video Capabilities:
- 8K@30fps, 4K@120fps
- Dolby Vision HDR Recording
- Pro Mode with LOG Support
5. Battery & Charging: All-Day Power & Ultra-Fast Charging
- Battery: 5500mAh Silicon-Carbon (Longer lifespan, faster charging)
- Wired Charging: 120W HyperCharge (0-100% in 18 mins)
- Wireless Charging: 80W (0-100% in 35 mins)
- Reverse Charging: 10W (for earbuds, smartwatches)
6. Software: HyperOS 2.0 (Android 15)
- Based on Android 15 with Xiaomi’s HyperOS 2.0
- AI-driven optimizations for performance and battery
- Enhanced privacy controls
- Seamless ecosystem integration (Xiaomi laptops, tablets, IoT devices)

7. Connectivity & Additional Features
- 5G: Sub-6GHz & mmWave support
- Wi-Fi 7: Faster speeds, lower latency
- Bluetooth 5.4: LE Audio, Dual Pairing
- NFC & Infrared Port
- Stereo Speakers: Tuned by Harman Kardon
- Under-Display Ultrasonic Fingerprint (Faster & more accurate)
Xiaomi 15 Ultra vs Competitors (2025)
Feature | Xiaomi 15 Ultra | Samsung Galaxy S25 Ultra | iPhone 16 Pro Max |
---|---|---|---|
Chipset | Snapdragon 8 Gen 4 | Exynos 2500 / Snapdragon 8 Gen 4 | A18 Pro |
Display | 6.81″ QHD+ 120Hz | 6.8″ QHD+ 144Hz | 6.7″ 120Hz LTPO |
Main Camera | 50MP (1-inch) | 200MP (HP3) | 48MP (Custom Sony) |
Zoom | 5x Periscope + 3x Tele | 10x Periscope | 5x Tetraprism |
Battery | 5500mAh | 5000mAh | 4500mAh |
Charging | 120W Wired + 80W Wireless | 45W Wired + 15W Wireless | 30W Wired + 15W MagSafe |
Price | $1,299 | $1,399 | $1,499 |
Pros:
✅ Best-in-class camera performance
✅ Blazing-fast 120W charging
✅ Premium ceramic & metal build
✅ Future-proof Snapdragon 8 Gen 4
Cons:
❌ Heavy (230g)
❌ No expandable storage
❌ Expensive (Starting at $1,299)
If you’re looking for a flagship Android phone with no compromises, the Xiaomi 15 Ultra should be at the top of your list in 2025.
Conclusion: Is the Xiaomi 15 Ultra Worth It?
The Xiaomi 15 Ultra is shaping up to be one of the most powerful Android smartphones of 2025. With its Snapdragon 8 Gen 4 chipset, Leica-tuned quad cameras, 5500mAh battery with 120W charging, and HyperOS 2.0, it competes directly with the Samsung Galaxy S25 Ultra and iPhone 16 Pro Max.