OPPO Find X9 Ultra vs Xiaomi 17 Ultra vs Xiaomi 15 Ultra

3 phones side by side: specs, PhoneRanked scores and US launch prices. The stronger value in each row is highlighted.

3 of 4 phones Clear all

OPPO OPPO Find X9 Ultra

9.4 Price TBA

Top score

Xiaomi Xiaomi 17 Ultra

9.1 Price TBA

Xiaomi Xiaomi 15 Ultra

8.8 Price TBA

Key differences

Why choose the OPPO Find X9 Ultra

Bigger battery 7,050 mAh
Faster wired charging 100 W
Longer optical zoom 10×
Brighter screen 3,600 nits
Higher refresh rate 144 Hz
Better water resistance IP68 + IP69

Why choose the Xiaomi 17 Ultra

Bigger screen 6.9 inches
Lighter 218.4 g
Thinner 8.29 mm

Why choose the Xiaomi 15 Ultra

Faster wireless charging 80 W
Higher screen resolution 1440 × 3200 px
Sharper display 522 ppi

PhoneRanked scores

Calculated from specs, relative to phones from the same year and price range. How we rate phones

Value for money marked “est.” is an estimate: that phone has no official US launch price, so it is not highlighted against the others.

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

Overall 9.4 9.1 8.8

Display 8.9 8.5 8.7

Performance 9.0 9.0 8.6

Camera 9.0 8.9 8.9

Battery 8.2 7.7 7.1

Design 8.6 8.3 8.1

Software support 7.9 7.9 7.4

Value for money 6.0 est. 6.0 est. 6.0 est.

Display

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

Size 6.82 inches 6.9 inches 6.73 inches

Type OLED, ProXDR AMOLED OLED, Xiaomi HyperRGB OLED OLED, WQHD+ AMOLED (All Around Liquid Display)

Resolution 1440 × 3168 px 1200 × 2608 px 1440 × 3200 px

Pixel density 510 ppi 416 ppi 522 ppi

Refresh rate 144 Hz 120 Hz 120 Hz

Adaptive refresh ✓ Yes ✓ Yes ✓ Yes

Peak brightness 3,600 nits 3,500 nits 3,200 nits

HDR Dolby Vision HDR10, HDR10+, Dolby Vision, HDR Vivid HDR10+, Dolby Vision

Protection Gorilla Glass Victus 2 Xiaomi Shield Glass 3.0 Xiaomi Shield Glass 2.0

Performance

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

Chipset Snapdragon 8 Elite Gen 5 Snapdragon 8 Elite Gen 5 Snapdragon 8 Elite

Process 3 nm 3 nm 3 nm

Max CPU clock 4.6 GHz 4.6 GHz 4.32 GHz

GPU Adreno 840 Adreno 840 Adreno 830

RAM 12 GB / 16 GB 16 GB 12 GB / 16 GB

Storage 256 GB / 512 GB / 1 TB 512 GB / 1 TB 256 GB / 512 GB / 1 TB

Storage type UFS 4.1 UFS 4.1 UFS 4.1

microSD slot ✕ No ✕ No ✕ No

Cameras

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

Main camera 200 MP, f/1.5, 1/1.12" 50 MP, f/1.67, 1" 50 MP, f/1.63, 1"

Optical stabilization ✓ Yes ✓ Yes ✓ Yes

Ultrawide 50 MP 50 MP 50 MP

Telephoto 200 MP, 10× optical, periscope 200 MP, 4.3× optical, periscope 200 MP, 4.3× optical, periscope

Optical zoom 10× 4.3× 4.3×

Rear cameras 5 3 4

Rear video 8K@30 8K@30 8K@30

Front camera 50 MP 50 MP 32 MP

Front video 4K@60 4K@60 4K@60

Battery and charging

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

Capacity 7,050 mAh 6,000 mAh 5,410 mAh

Battery type Silicon-carbon Silicon-carbon —

Wired charging 100 W 90 W 90 W

Wireless charging 50 W 50 W 80 W

Reverse wireless ✕ No ✓ Yes —

Charger in box ✕ No ✕ No ✕ No

Design and build

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

Dimensions 163.16 × 76.97 × 9.1 mm 162.9 × 77.6 × 8.29 mm 161.3 × 75.3 × 9.35 mm

Thickness 9.1 mm 8.29 mm 9.35 mm

Weight 236 g 218.4 g 226 g

Form factor Bar Bar Bar

Frame Aluminum Aluminum Aluminum

Back Vegan leather Fiberglass Fiberglass

Water resistance IP68 + IP69 IP68 IP68

Fingerprint Under-display ultrasonic Under-display ultrasonic Under-display ultrasonic

3D face unlock ✕ No ✕ No ✕ No

SIM Dual Nano-SIM + eSIM Dual Nano-SIM + eSIM Dual Nano-SIM + eSIM

Colors Tundra Umber, Canyon Orange, Polar Glacier Starlit Green, Black, White Silver Chrome, Black, White, Pine Green (China)

Connectivity and features

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

5G ✓ Yes ✓ Yes ✓ Yes

Wi-Fi Wi-Fi 7 Wi-Fi 7 Wi-Fi 7

Bluetooth 6.0 6.0 6.0

USB USB-C 3.x USB-C 3.x USB-C 3.x

NFC ✓ Yes ✓ Yes ✓ Yes

3.5 mm jack ✕ No ✕ No ✕ No

Stereo speakers ✓ Yes ✓ Yes ✓ Yes

Satellite ✕ No ✕ No ✕ No

IR blaster ✓ Yes ✓ Yes ✓ Yes

Software

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

OS at launch Android 16 Android 16 Android 15

Interface ColorOS 16 Xiaomi HyperOS 3 Xiaomi HyperOS 2

OS updates 5 years 5 years 4 years

Security updates 6 years 6 years 6 years

Launch and price

Spec OPPO Find X9 UltraXiaomi 17 UltraXiaomi 15 Ultra

Announced Apr 21, 2026 Dec 25, 2025 Feb 27, 2025

Released Apr 24, 2026 Dec 27, 2025 —

Status Released Released Released

Green marks the stronger value in a row. Specs come from official manufacturer data, cross-checked with established tech media; each phone page lists its sources. Report an error

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