Oppo Find X9 Ultra vs Oukitel C66

Oppo Find X9 Ultra
Oppo
Find X9 Ultra
Oukitel C66
Oukitel
C66

At a glance

Brand
Oppo
Oukitel
Release date
April 2026, 1 months ago
January 2026, 4 months ago
AnTuTu
4.107.882 Antutu v11 Overall performance better than 99% of devices
308.681 Antutu v10 Overall performance better than 61% of devices

Display

Size
6.87"
6.73"
Resolution
1440 x 3120 px WQHD+
720 x 1560 px HD+
Type
AMOLED
LCD IPS
Density
500 ppi Very high density
255 ppi Medium Density
Aspect ratio
20:9
21:9
Features
Hole-punch Notch, 2160 Hz PWM, 1-144 Hz refresh rate, Refresh rate 144 Hz, Variable refresh rate VRR, Max brightness HBM - 800 cd/m², Peak brightness - 1800 cd/m², 8000000:1 contrast ratio, HDR10+, DCI-P3, DC dimming, 10 Bits panel, Dolby Vision, Scratch resistant, Armor glass, Capacitive, Multi-touch, Frameless, LTPO (Low Temperature PolySilicon oxide)
Hole-punch Notch, Refresh rate 120 Hz, Brightnes 500 cd/m² (typ), Brightnes 450 cd/m² (typ), 1500:1 contrast ratio, 2.5D curved glass screen, Corning Gorilla Glass 5, Capacitive, Multi-touch, Frameless, In-cell

Performance

Chipset
Qualcomm Snapdragon 8 Elite Gen 5
Unisoc Tiger T615 (T7250)
CPU
2x4.61 GHz ARM + 6x3.63 GHz ARM
2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.6Ghz
CPU type
Octa-Core
Octa-Core
Process
3 nm
12 nm
Frequency
4.61 GHz
1.8 GHz
GPU
Adreno 840 1.2 GHz
Mali-G57 MP1
RAM
12 GB
4 GB
RAM type
RAM LPDDR5X
64-bit
Yes
Yes

Rear camera

Resolution
200 Mpx
64 Mpx
Aperture
ƒ/ 1.5
ƒ/ 1.8
Sensor
Sony LYT-901
Pixel size
0.70 µm
Sensor size
1/1.12"
Flash
LED
LED
Optical stabilization
Yes
No
Slow motion
Yes, 960 fps
No, 30 fps
Features
Flicker sensor, Night Mode 2.0, Noise reduction, Time-Lapse, 4K Video, 8K Video, Digital zoom, Optical zoom, Quadruple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Gimbal, Autofocus, Touch focus, Continuous autofocus, Manual focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Night Mode
Digital zoom, Triple camera, Autofocus, Touch focus, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer

Front camera

Resolution
50 Mpx
8 Mpx
Aperture
Unknow
Unknow

Battery

Capacity
7050 mAh
5000 mAh
Type
Si-Carbon Li-Ion
Li-Polymer
Fast charge
Yes , 100.0W
Yes , 18.0W
Wireless charging
50W wireless fast charging
Charge cycles
1200 cycles
Runtime
~ 72h
Features
Bypass Charging, Wireless charging, Reverse charging, Non-removable
Non-removable

Storage

Capacity
512 GB
128 GB
Type
UFS Storage 4.1
eMMC 5.1 Storage
SD slot
No
Yes , Slot for SD or second SIM card

Body

Dimensions
77.0 mm 163.2 mm 8.7 mm Print 3D Model
78.0 mm 165.0 mm 8.7 mm Print 3D Model
Weight
235 g
198 g
Materials
Glass , Faux leather , Aluminium
Plastic
Colors
Black Orange
Black Gold Gray Purple Orange
Water/dust resistance
IP68, IP69
Drop resistance
Class A B C D E 180 drops without defects
Repairability
Class A B C D E
Usable surface
92 %
87 %

Software

Operating system
Android 16 ColorOS 16 (Android 16)
Android 16 Android 16
Google services
With Google Mobile Services
With Google Mobile Services

Connectivity

SIM
Dual SIM Dual Standby (Nano SIM + Nano SIM / eSIM)
Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth
Bluetooth 6.0 LELow energy consumption
Bluetooth 5.2
Bluetooth profiles
A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC
A2DP (Advanced Audio Distribution Profile)
Wi-Fi
802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax) , WiFi 6E , WiFi 7 (802.11be)
802.11a , 802.11b , 802.11g , 802.11n , 802.11ac
Wi-Fi features
Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO
Wi-Fi Hotspot
USB
USB Type-C
USB Type-C
USB features
Charging, OTG
Charging, OTG
Navigation
GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), QZSS (L1 + L5)
GPS, A-GPS, GLONASS, Beidou, Galileo

Networks

5G
n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n12 (700), n20 (800), n25 (1900), n26 (850), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), n66 (1700), n77 (3700), n78 (3500), n79 (4700)
4G LTE
B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B18 (800), B19 (800), B20 (800), B25 (1900+), B26 (850), B28b (700), B28a (700), B32 (1500), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B48 (TDD 3600), B66 (1700/2100), B71 (600)
B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B18 (800), B19 (800), B20 (800), B26 (850), B28b (700), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100)
3G
B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800)
B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B8 (900)
2G
B3 (1800), B5 (850), B8 (900)
B2 (1900), B3 (1800), B5 (850), B8 (900)

Sensors & security

Fingerprint
Yes, in screen
Yes, on the side
Accelerometer
Yes
Yes
Gyroscope
Yes
Proximity
Yes
Light sensor
Yes
Yes
Cooling system
Yes
No
Audio
Dolby Atmos, Hi-Res Audio, Stereo Speakers
DTS / DTS X, Stereo Speakers

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Compared with Oukitel C66

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