Compare / Xiaomi 18 Pro vs Redmi K90 Ultra
Xiaomi 18 Pro vs Redmi K90 Ultra
A side-by-side comparison of the Xiaomi 18 Pro and the Redmi K90 Ultra, covering display, chipset, memory, camera, battery and build.
Overview
Specifications
Xiaomi 18 Pro
- 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, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66
- 5G bands
- 1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA
- Speed
- HSPA, LTE, 5G
Redmi K90 Ultra
- 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, 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
Xiaomi 18 Pro
- Announced
- 2026, September 23
- Status
- Available. Released 2026, September 23
Redmi K90 Ultra
- Announced
- 2026 Jun
- Status
- Available. Released 2026 Jun 29
Xiaomi 18 Pro
- Dimensions
- 151.8 x 72 x 8.5 mm (5.98 x 2.83 x 0.33 in)
- Weight
- 203 g or 208 g (7.16 oz)
- Build
- Glass front (Dragon Crystal Glass 3), aluminum frame
- SIM
Nano-SIM + Nano-SIM
IP68 dust tight and water resistant (immersible up to 6m for 30 min)
Redmi K90 Ultra
- Dimensions
- 162.91 × 77.93 × 8.18 mm
- Weight
- 227 g
- Build
- Yes
- SIM
- Nano-SIM (4FF)
- Protection
- IP69 dust/water resistant (150 cm, 30 min)
- Extras
- Haptic touch feedback, Tactile touch feedback
Xiaomi 18 Pro
- Type
- LTPO AMOLED68B colors2160Hz PWM120HzDolby VisionHDR VividHDR10+BT.20204000 nits (peak)
- Size
- 6.4 inches, 100.3 cm2 (~91.8% screen-to-body ratio)
- Resolution
- 1120 x 2436 pixels, 19.5:9 ratio (~419 ppi density)
- Protection
Xiaomi Dragon Crystal Glass 3
Secondary display (on the back):
LTPO AMOLED, 120Hz, Dolby Vision, HDR Vivid, HDR10+, BT.2020, 4000 nits (peak)
2.7 inches, 596 x 976 pixels
Redmi K90 Ultra
- Type
- AM-OLED display, 1073.7M colors, 165 Hz
- Size
- 6.8 inches
- Resolution
- 1280x2772 pixels (~447 PPI density), ~90.2% screen-to-body ratio
- Protection
- Yes
- Touch
- Capacitive multi-touch screen
- Notch/Hole
- 1-hole
Xiaomi 18 Pro
- OS
- Android 17, HyperOS 4
- Chipset
- Qualcomm Snapdragon 8 Elite Gen 6 (2 nm)
- CPU
- Octa-core (up to 5 GHz)
- GPU
- Adreno
Redmi K90 Ultra
- 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)
Xiaomi 18 Pro
- Card slot
- No
- Internal
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
UFS 4.1
Redmi K90 Ultra
- Card slot
- No
- Internal
- 512GB 16GB RAM, 512GB 12GB RAM, 256GB 16GB RAM, 256GB 12GB RAM
- Interface
- UFS 4.1
Xiaomi 18 Pro
- 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
Redmi K90 Ultra
- Dual
50.1 MP, f/1.68, 24mm, 1.0 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
- Other features
- single LED flash
- Video
- 7680x4320 pixel
Xiaomi 18 Pro
- 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
Redmi K90 Ultra
- Single
20.2 MP, f/2.00, BSI CMOS, 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
Xiaomi 18 Pro
- Loudspeaker
- Yes, with stereo speakers (with Dolby Atmos)
- 3.5mm jack
No
24-bit/192kHz Hi-Res & Hi-Res wireless audio
Snapdragon sound
Redmi K90 Ultra
- Loudspeaker
- 3
- 3.5mm jack
- No
- Audio features
- Voice speakerSpeakerphoneANCHD VoiceVoLTEViLTE
Xiaomi 18 Pro
- 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
Redmi K90 Ultra
- 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
Xiaomi 18 Pro
- Sensors
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Ultra Wideband (UWB) support
Redmi K90 Ultra
- Sensors
- AccelerometerGyroCompassIn-screen FP sensorL sensorP sensorStep counterNFC
- Software
- Voice CommandBusiness card recognitionNavigation softwareAugmented Reality (AR)Intelligent personal assistantVoice RecognitionFace Recognition
Xiaomi 18 Pro
- Type
- Si/C Li-Ion 7000 mAh
- Charging
100W wired, PD3.0, QC3+, 100W PPS
50W wireless
27W reverse wireless
Redmi K90 Ultra
- Type
- 8550 mAh battery Li-ion (Si-C)
- Charging
- 100.0 W charging wired
Xiaomi 18 Pro
- Colors
- Black, White, Pink, Red, Blue
- Price
- About 790 EUR
Redmi K90 Ultra
- Models
- Redmi K90 Ultra 5G Standard Edition Dual SIM TD-LTE CN 512GB M332BF
- Price
- ¥4,199
- Market
- Asia
- Countries
- China
How the Xiaomi 18 Pro and Redmi K90 Ultra differ
- The Redmi K90 Ultra has a larger battery, 8550 mAh against 7000 mAh on the Xiaomi 18 Pro.
- The Redmi K90 Ultra has the bigger screen, 6.8 inches against 6.4 inches.
- The main cameras are 200 MP on the Xiaomi 18 Pro and 50.1 MP on the Redmi K90 Ultra.
- The Xiaomi 18 Pro is the newer of the two, released in September 2026.