Compare / Xiaomi 18 Pro Max vs Oppo Find X9 Ultra

Xiaomi 18 Pro Max vs Oppo Find X9 Ultra

A side-by-side comparison of the Xiaomi 18 Pro Max and the Oppo Find X9 Ultra, covering display, chipset, memory, camera, battery and build.

Overview

Display
Xiaomi 18 Pro Max
6.9inch
LTPO AMOLED · 120 Hz
1208 × 2624 · 418 PPI
Oppo Find X9 Ultra
6.82inch
LTPO AMOLED · 144 Hz
1440 × 3168 · 510 PPI
Chip
Xiaomi 18 Pro Max
Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
Adreno 850 · Android 17
Oppo Find X9 Ultra
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
Adreno 840 · Android 16 up to 5 major OS updates
Memory
Xiaomi 18 Pro Max
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
Oppo Find X9 Ultra
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
Camera
Xiaomi 18 Pro Max
200MP Main
200 MP Periscope
50 MP Ultra Wide
50 MP selfie
8K@30fps (HDR) video
Oppo Find X9 Ultra
200MP Main
200 MP Periscope
50 MP Periscope
50 MP Ultra Wide
50 MP selfie
8k@30fps video
Battery
Xiaomi 18 Pro Max
8,500mAh
100 W wired · 50 W wireless
Oppo Find X9 Ultra
7,050mAh
100 W wired · 50 W wireless
Build
Xiaomi 18 Pro Max
235g
163.4 × 77.6 × 8.4 mm
IP68
Oppo Find X9 Ultra
235g
163.2 × 77 × 8.7 mm
IP68
Connectivity
Xiaomi 18 Pro Max
5GWi-Fi 7Bluetooth 6.0NFCNano-SIM + Nano-SIMUSB Type-C 3.2
Oppo Find X9 Ultra
5GWi-Fi 7Bluetooth 6.0NFCNano-SIM + Nano-SIM + eSIM (max 2 at a time)USB Type-C 3.2

Specifications

Xiaomi 18 Pro Max

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 34, 38, 39, 40, 41, 42, 43, 48, 66, 71
5G bands
1, 2, 3, 5, 7, 8, 12, 13, 14, 18, 20, 25, 26, 28, 29, 38, 40, 41, 48, 66, 70, 71, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA
Speed
HSPA, LTE, 5G

Oppo Find X9 Ultra

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands

HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - Global

HSDPA 900 / 2100 - India

4G bands

1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 43, 48, 66, 71 - Global

1, 3, 5, 8, 40 - India

5G bands

1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - Global

1, 3, 5, 8, 40 SA/NSA - India

Speed
HSPA, LTE, 5G

Xiaomi 18 Pro Max

Announced
2026, September 23
Status
Available. Released 2026, September 23

Oppo Find X9 Ultra

Announced
2026, April 21
Status
Available. Released 2026, May 02

Xiaomi 18 Pro Max

Dimensions
163.4 x 77.6 x 8.4 mm (6.43 x 3.06 x 0.33 in)
Weight
235 g or 240 g (8.29 oz)
Build
Glass front (Dragon Crystal Glass 3), aluminum frame
SIM
Nano-SIM + Nano-SIM
Protection
IP68 dust tight and water resistant (immersible up to 6m for 30 min)

Oppo Find X9 Ultra

Dimensions
163.2 x 77.0 x 8.7 mm or 9.1 mm
Weight
235 g (8.29 oz)
Build
Glass front (Gorilla Glass Victus 2), aluminum frame, glass-fiber reinforced plastic back or silicone polymer back (eco leather)
SIM

Nano-SIM + Nano-SIM + eSIM (max 2 at a time)

IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)

Xiaomi 18 Pro Max

Type
LTPO AMOLED68B colors2160Hz PWM120HzDolby VisionHDR VividHDR10+BT.20204000 nits (peak)
Size
6.9 inches, 116.2 cm2 (~91.6% screen-to-body ratio)
Resolution
1208 x 2624 pixels, 19.5:9 ratio (~418 ppi density)
Protection
Xiaomi Dragon Crystal Glass 3
Secondary display

LTPO AMOLED, 120Hz, Dolby Vision, HDR Vivid, HDR10+, BT.2020, 4000 nits (peak)

2.9 inches, 596 x 976 pixels

Oppo Find X9 Ultra

Type
LTPO AMOLED1B colors144HzDolby VisionHDR10+800 nits (typ)1800 nits (HBM)3600 nits (peak)
Size
6.82 inches, 113.0 cm2 (~90.0% screen-to-body ratio)
Resolution
1440 x 3168 pixels (~510 ppi density)
Protection

Gorilla Glass Victus 2

Ultra HDR image support

Xiaomi 18 Pro Max

OS
Android 17, HyperOS 4
Chipset
Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
CPU
Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
GPU
Adreno 850

Oppo Find X9 Ultra

OS
Android 16 up to 5 major OS updates, ColorOS 16
Chipset
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
CPU
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
GPU
Adreno 840

Xiaomi 18 Pro Max

Card slot
No
Internal

256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM

UFS 4.1

Oppo Find X9 Ultra

Card slot
No
Internal

256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM

UFS 4.1

Xiaomi 18 Pro Max

Triple

200 MP, f/1.7, 23mm (wide), 1/1.28", 0.61µm, dual pixel PDAF, OIS

200 MP, f/2.4, 75mm (periscope telephoto), 1/1.56", PDAF (10cm - ∞), OIS, 3.2x optical zoom

50 MP, f/2.4, 17mm, 102˚ (ultrawide), 1/2.88", 0.61µm, PDAF

Features
Laser AFcolor spectrum sensorLeica lensDual-LED dual-tone flashHDRpanorama
Video
8K@30fps (HDR), 4K@30/60/120fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG), 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS

Oppo Find X9 Ultra

Quad

200 MP, f/1.5, 23mm (wide), 1/1.12", PDAF, OIS

200 MP, f/2.2, 70mm (periscope telephoto), 1/1.28", PDAF (15cm - ∞), OIS, 3x optical zoom

50 MP, f/3.5, 230mm (periscope telephoto), 1/2.75", PDAF, OIS, 10x optical zoom

50 MP, f/2.0, 14mm, 123˚ (ultrawide), 1/1.95", PDAF

Features
Laser AFcolor spectrum sensorHasselblad Color CalibrationLED flashHDRpanorama
Video
8k@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps; gyro-EIS; Dolby Vision HDR, 10‑bit video, O-Log2, cinematic LUT

Xiaomi 18 Pro Max

Single
50 MP, f/2.2, 21mm (wide), 1/2.88", 0.61µm, PDAF
Features
HDR, panorama
Video
4K@30/60fps, 1080p@30/60fps, HDR10+, gyro-EIS

Oppo Find X9 Ultra

Single
50 MP, f/2.4, 21mm (wide), 1/2.75", PDAF
Features
Panorama, HDR
Video
4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR

Xiaomi 18 Pro Max

Loudspeaker
Yes, with stereo speakers (3 speakers, with Dolby Atmos)
3.5mm jack

No

24-bit/192kHz Hi-Res & Hi-Res wireless audio

Snapdragon sound

Oppo Find X9 Ultra

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

Xiaomi 18 Pro Max

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi Direct
Bluetooth
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS (L1+L5)BDS (B1I+B1c+B2a)GALILEO (E1+E5a)QZSS (L1+L5)NavIC (L5)GLONASS
NFC
Yes
Infrared port
Yes
Radio
No
USB
USB Type-C 3.2, Display Port, OTG

Oppo Find X9 Ultra

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct
Bluetooth
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Positioning
GPS (L1+L5)BDS (B1I+B1c+B2a)GALILEO (E1+E5a)QZSS (L1+L5)GLONASSNavIC (L5)
NFC
Yes
Infrared port
Yes
Radio
No
USB
USB Type-C 3.2, OTG

Xiaomi 18 Pro Max

Sensors

Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer

Ultra Wideband (UWB) support

Oppo Find X9 Ultra

Sensors
Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer

Xiaomi 18 Pro Max

Type
Si/C Li-Ion 8500 mAh
Charging

100W wired, PD3.0, QC3+, 100W PPS

50W wireless

27W reverse wireless

Oppo Find X9 Ultra

Type
Si/C Li-Ion 7050 mAh
Charging

100W wired, 55W PPS, 18W PD/QC

50W wireless

10W reverse wireless

Reverse wired

Xiaomi 18 Pro Max

Colors
Black, White, Pink, Red, Blue
Price
About 920 EUR

Oppo Find X9 Ultra

Colors
Tundra Umber, Canyon Orange, Polar Glacier
Models
CPH2841, PMA110
Price
£ 2,265.00 / € 1,459.90 / $ 2,289.00

Xiaomi 18 Pro Max

Not listed for this device

Oppo Find X9 Ultra

Performance

AnTuTu: 2854496 (v10), 4110112 (v11)

GeekBench: 10895 (v6)

3DMark: 7339 (Wild Life Extreme)

Display
1156 nits max brightness (measured)
Loudspeaker
-25.6 LUFS (Very good)
Battery
Active use score 20:10h

How the Xiaomi 18 Pro Max and Oppo Find X9 Ultra differ

  • The Xiaomi 18 Pro Max has a larger battery, 8500 mAh against 7050 mAh on the Oppo Find X9 Ultra.
  • The Xiaomi 18 Pro Max has the bigger screen, 6.9 inches against 6.82 inches.
  • The Xiaomi 18 Pro Max is the newer of the two, released in August 2026.