Compare / Redmi K90 vs Oppo Find X9
Redmi K90 vs Oppo Find X9
A side-by-side comparison of the Redmi K90 and the Oppo Find X9, covering display, chipset, memory, camera, battery and build.
Overview
Specifications
Redmi K90
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800
- 3G bands
- UMTS 2100 / 1700/2100 / 850 / 800 / 900 / 800 - HSUPA, HSUPA 5.8, HSDPA, HSPA+ 21.1, HSPA+ 42.2, DC-HSDPA 42.2
- 4G bands
- LTE bands 1, 3, 4, 5, 7, 8, 19, 28, 34, 38, 39, 40, 41, 42, 48, 66 - 100/50, 150/50, 300/50, 300/75, 300/100, 450/50, 450/100, 600/50, 600/100
- 5G bands
- NR bands 1, 3, 5, 7, 8, 28, 38, 40, 41, 48, 66, 77, 78 - 1500, 2600, 3700 data links
- Dual SIM
- SIM2 supports same bands as SIM1
Oppo Find X9
- Technology
- GSM / HSPA / LTE / 5G
- 2G bands
- GSM 850 / 900 / 1800 / 1900
- 3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China
HSDPA 900 / 2100
- 4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66 - International
1, 2, 3, 4, 5, 7, 8, 18, 19, 25, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66 - China
1, 3, 5, 8, 40 - India
- 5G bands
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 75, 77, 78 SA/NSA - International
1, 2, 3, 5, 7, 8, 18, 25, 26, 28, 34, 38, 39, 40, 41, 48, 66, 77, 78 SA/NSA - China
1, 3, 5, 8, 40 SA/NSA - India
- Speed
- HSPA, LTE, 5G
Redmi K90
- Announced
- 2025 Oct 23
- Status
- Available. Released 2025 Oct
Oppo Find X9
- Announced
- 2025, October 16
- Status
- Available. Released 2025, October 22
Redmi K90
- Dimensions
- 157.49 × 75.25 × 8 mm
- Weight
- 206 g
- Build
- Gorilla Glass 7i
- SIM
- Nano-SIM (4FF)
- Protection
- IP68 dust/water resistant (150 cm, 30 min)
- Extras
- Haptic touch feedback, Tactile touch feedback
Oppo Find X9
- Dimensions
- 157 x 73.9 x 8 mm (6.18 x 2.91 x 0.31 in)
- Weight
- 203 g (7.16 oz)
- Build
- Glass front (Gorilla Glass 7i), glass back, aluminum frame
- SIM
· Nano-SIM + eSIM
· Nano-SIM + Nano-SIM
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Redmi K90
- Type
- AM-OLED display, 1073.7M colors, 120 Hz
- Size
- 6.6 inches
- Resolution
- 1156x2510 pixels (~419 PPI density), ~89.8% screen-to-body ratio
- Protection
- Gorilla Glass 7i
- Touch
- Capacitive multi-touch screen
- Notch/Hole
- 1-hole
Oppo Find X9
- Type
- AMOLED1B colors120Hz3840Hz PWMDolby VisionHDR10+HDR Vivid800 nits (typ)1800 nits (HBM)3600 nits (peak)
- Size
- 6.59 inches, 105.6 cm2 (~91.0% screen-to-body ratio)
- Resolution
- 1256 x 2760 pixels (~460 ppi density)
- Protection
Corning Gorilla Glass 7i
Ultra HDR image support
Redmi K90
- OS
- Google Android 16 (Baklava)
- Chipset
- Qualcomm Snapdragon 8 Elite SM8750-AB (Sun) 3 nm
- CPU
- 4.32 GHz octa-core
- GPU
- Qualcomm Adreno 830 (1100 MHz)
Oppo Find X9
- OS
- Android 16, up to 5 major OS updates, ColorOS 16
- Chipset
- Mediatek Dimensity 9500 (3 nm)
- CPU
- Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
- GPU
- Arm G1-Ultra
Redmi K90
- Card slot
- No
- Internal
- 1TB 16GB RAM, 512GB 16GB RAM, 512GB 12GB RAM, 256GB 16GB RAM, 256GB 12GB RAM
- Interface
- UFS 4.1
Oppo Find X9
- Card slot
- No
- Internal
256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 4.1
Redmi K90
- Triple
50.1 MP, f/1.88, 24mm, 2.5 x optical zoom, BSI CMOS, 1.00µm, PD AF, EIS, EIS (video), OIS, Pixel unification, HDR photo, HDR video, Red-eye reduction, Slow motion video, Burst mode, Refocus, Touch focus, Macro mode, Panorama Photo, Face detection, Face tagging, Smile detection, Face retouch, Face retouch (video), Intelligent scene detection
8.0 MP, f/2.20, 15mm, (ultrawide), BSI CMOS, 1.12µm, HDR photo, HDR video, Slow motion video, Burst mode, Panorama Photo, Face detection, Face tagging, Smile detection, Face retouch, Face retouch (video), Intelligent scene detection
50.1 MP, f/2.20, 60mm, (telephoto), BSI CMOS
- Other features
- single LED flash
- Video
- 7680x4320 pixel
Oppo Find X9
- Triple
50 MP, f/1.6, 23mm (wide), 1/1.4", 1.12µm, multi-directional PDAF, OIS
50 MP, f/2.6, 73mm (periscope telephoto), 1/1.95", 0.61µm, 3x optical zoom, multi-directional PDAF, OIS
50 MP, f/2.0, 15mm, 120˚ (ultrawide), 1/2.76", 0.64µm, multi-directional PDAF
- Features
- Laser AFcolor spectrum sensorHasselblad Color CalibrationLED flashHDRpanorama
- Video
- 4K@30/60/120fps, 1080p@30/60/240fps; gyro-EIS; HDR, 10‑bit video, Dolby Vision, LOG
Redmi K90
- Single
20.2 MP, f/2.00, BSI CMOS, EIS, EIS (video), Pixel unification, HDR photo, HDR video, Slow motion video, Burst mode, Panorama Photo, Face detection, Face tagging, Smile detection, Face retouch, Face retouch (video), Intelligent scene detection
- Video
- 1920x1080 pixel
Oppo Find X9
- Single
- 32 MP, f/2.4, 21mm (wide), 1/2.74", 0.8µm
- Features
- Panorama
- Video
- 4K@30/60fps, 1080p@30/60fps, gyro-EIS
Redmi K90
- Loudspeaker
- stereo
- 3.5mm jack
- No
- Audio features
- Voice speakerSpeakerphoneANCHD VoiceVoLTEViLTE
Oppo Find X9
- Loudspeaker
- Yes, with stereo speakers
- 3.5mm jack
- No
Redmi K90
- WLAN
- 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be
- Bluetooth
- Bluetooth 5.4
- Positioning
- Simultaneous GPSA-GPSDual-frequency GPSGeotaggingQuickGPSQZSSNavIC
- Satellite details
- GLONASS (L1OF); Galileo (E1, E5a); BeiDou (B1c, B1I, B2a BeiDou receiver)
- NFC
- Yes
- USB
- USB C reversible USB 2.0
- USB features
- USB chargingUSB fast chargingUSB HostUSB OTG 1.3USB OTG 2.0USB PDUSB PD 2.0USB PD 3.0
- Wireless features
- Miracast, Wi-Fi Direct, Wi-Fi Tethering, WiDi, Wi-Fi Calling
- IR
- Yes
Oppo Find X9
- WLAN
- Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct
- Bluetooth
- 6.0, A2DP, LE, aptX HD, LHDC 5
- Positioning
- GPS (L1+L5)BDS (B1I+B1c+B2a+B2b)GALILEO (E1+E5a+E5b)QZSS (L1+L5)GLONASSNavIC (L5)
- NFC
- Yes
- Infrared port
- Yes
- Radio
- No
- USB
- USB Type-C, OTG
Redmi K90
- Sensors
- AccelerometerGyroCompassIn-screen FP sensorL sensorP sensorStep counterNFC
- Software
- Voice CommandBusiness card recognitionNavigation softwareAugmented Reality (AR)Intelligent personal assistantVoice RecognitionFace Recognition
Oppo Find X9
- Sensors
- Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Redmi K90
- Type
- 7100 mAh battery Li-ion (Si-C)
- Charging
- 100.0 W charging wired
Oppo Find X9
- Type
- Si/C Li-Ion 7025 mAh
- Charging
80W wired, 80W UFCS, 55W PPS, 11.7W PD
50W wireless
10W reverse wireless
Redmi K90
- Models
- Redmi K90 5G Premium Edition Dual SIM TD-LTE CN 1TB 2510DRK44C
- Price
- ¥4,899
- Market
- Asia
- Countries
- China
Oppo Find X9
- Colors
- Space Black, Titanium Grey, Velvet Red, White
- Models
- CPH2797, PLJ110
- Price
- £ 699.97 / € 1,031.60 / $ 1,306.00
Redmi K90
Not listed for this device
Oppo Find X9
- Energy
- Class A
- Battery
- 69:18h endurance, 1300 cycles
- Free fall
- Class D (45 falls)
- Repairability
- Class B
How the Redmi K90 and Oppo Find X9 differ
- The Redmi K90 has a larger battery, 7100 mAh against 7025 mAh on the Oppo Find X9.
- The Redmi K90 has the bigger screen, 6.6 inches against 6.59 inches.
- The main cameras are 50.1 MP on the Redmi K90 and 50 MP on the Oppo Find X9.
- The Oppo Find X9 is the newer of the two, released in October 2025.