Category Breakdown
Asus ROG Phone 9
Xiaomi 15 Ultra
Performance
97.197.1
Camera
99.599.6
Display
97.699.1
Battery
97.997.5
Build
82.177.3
Connectivity
92.788.4
Audio
87.687.6
Overall
93.394.7
Summary
- The Asus ROG Phone 9 features a robust build with Gorilla Glass Victus 2 on the front and back, while the Xiaomi 15 Ultra offers a choice between glass-fiber and eco leather for its back.
- In terms of display, the ROG Phone 9 has a 6.78-inch LTPO AMOLED panel with a 185Hz refresh rate, whereas the Xiaomi 15 Ultra sports a slightly larger 6.73-inch LTPO AMOLED with a higher resolution and peak brightness of 3200 nits.
- Both devices utilize the Snapdragon 8 Elite chipset, ensuring top-tier performance, but the Xiaomi offers more storage options up to 1TB.
- Camera capabilities are strong on both, with the ROG Phone 9 featuring a versatile triple-camera setup and the Xiaomi 15 Ultra boasting an advanced quad-camera system with multiple optical zoom options.
- The ROG Phone 9 has a larger 5800mAh battery compared to the 5410mAh in the Xiaomi, but the latter supports faster charging at 90W.
- Both run on Android 15, but the Xiaomi offers a longer software upgrade commitment with up to four major updates, while the ROG Phone 9 is limited to two.
Side-by-side Specification Comparison
Asus ROG Phone 9
Xiaomi 15 Ultra
General
Release Date
2024, November 19
2025, February 27
Announced
2024, November 19
2025, February 27
Description
N/A
N/A
Display
Size
6.78"
6.73"
Type
LTPO AMOLED, 1B colors, 185Hz, HDR10, 1600 nits (HBM), 2500 nits (peak)
LTPO AMOLED, 68B colors, 120Hz, Dolby Vision, HDR10+, HDR Vivid, 3200 nits (peak)
Resolution
1080 x 2400 pixels, 20:9 ratio (~388 ppi density)
1440 x 3200 pixels, 20:9 ratio (~522 ppi density)
PPI
1080
1440
Refresh Rate
185Hz
120Hz
HDR Support
✓
✓
Protection
Corning Gorilla Glass Victus 2
Xiaomi Shield Glass 2.0
Performance
Chipset
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
CPU
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 830
Adreno 830
Memory
256GB 12GB RAM, 512GB 16GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Expandable Storage
✗
✗
Card Slot
No
No
Camera
Main Camera
50 MP, f/1.9, 24mm (wide), 1/1.56", 1.0µm, PDAF, gimbal OIS13 MP, f/2.2, 13mm, 120˚ (ultrawide)5 MP, f/2.4, (macro)
50 MP, f/1.6, 23mm (wide), 1.0"-type, 1.6µm, dual pixel PDAF, OIS50 MP, f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom200 MP, f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 4.3x optical zoom50 MP, f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, dual pixel PDAFTOF 3D, (depth)
Main Camera Features
LED flash, HDR, panorama
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Front Camera
32 MP, f/2.5, 22mm (wide), 1/3.2", 0.7µm
32 MP, f/2.0, 21mm (wide), 1/3.14", 0.7µm
Front Camera Features
Panorama, HDR
HDR, panorama
Video Recording
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 720p@480fps; gyro-EIS, HDR10+
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Selfie Video
1080p@30fps
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Optical Stabilization
✓
✓
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5800 mAh
5410 mAh
Battery Details
5800 mAh
Si/C Li-Ion 5410 mAh - GlobalSi/C Li-Ion 6000 mAh - China
Charging Details
65W wired, PD3.0, PPS, QC5, 100% in 46 min15W wireless (Qi)10W reverse wired
90W wired, PD3.0, QC3+80W wireless10W reverse wireless
Fast Charging
✗
✗
Wireless Charging
✓
✓
Build & Safety
Dimensions
163.8 x 76.8 x 8.9 mm (6.45 x 3.02 x 0.35 in)
161.3 x 75.3 x 9.4 mm (6.35 x 2.96 x 0.37 in)
Weight
227 g
226 g
Materials
Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass), aluminum frame
Glass front, glass-fiber back or silicone polymer back (eco leather), aluminum frame
Colors
Phantom Black, Storm White
Black, White, Silver Chrome, Green
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM +eSIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIMNano-SIM + Nano-SIM +eSIM+ eSIM (max 2 at a time)
Network
GSM / HSPA / LTE / 5G
GSM / HSPA / LTE / 5G
Network Speed
HSPA, LTE (Up to 7CA), 5G
HSPA, LTE, 5G
5G
✓
✓
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
NFC
✓
✓
USB
USB Type-C (side), DisplayPort 1.4; USB Type-C (bottom), OTG
USB Type-C 3.2 Gen 2, DisplayPort, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✗
Radio
✗
✗
Positioning
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
Audio
Stereo Speakers
✓
✓
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
Audio Jack
Yes
No
Software & Security
Operating System
Android 15, up to 2 major Android upgrades
Android 15, up to 4 major Android upgrades, HyperOS 2
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer

