Screen size
equal specs18 Pro Max6.9"
Redmi K90 Pro Max6.9"
Quick verdict
18 Pro Max leads the measured specs 9-3.
Measured wins
18 Pro Max
9
spec wins
Overall winner
Ties
11
equal specs
Redmi K90 Pro Max
3
spec wins
Screen size
equal specsTechnology
18 Pro Max
GSM / HSPA / LTE / 5G
Redmi K90 Pro Max
GSM / HSPA / LTE / 5G
2G bands
18 Pro Max
GSM 850 / 900 / 1800 / 1900
Redmi K90 Pro Max
GSM 850 / 900 / 1800 / 1900
3G bands
18 Pro Max
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
Redmi K90 Pro Max
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
18 Pro Max
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
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
Wired charging
equal specsWeight
Thickness
IP rating
equal specsWi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
equal specsRedmi K90 Pro Max
1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
5G bands
18 Pro Max
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
Redmi K90 Pro Max
1, 3, 5, 7, 8, 18, 26, 28, 38, 40, 41, 48, 66, 77, 78, 80, 81, 83, 84, 89 SA/NSA
Speed
18 Pro Max
HSPA, LTE, 5G
Redmi K90 Pro Max
HSPA, LTE, 5G
Announced
18 Pro Max
2026, September 23
Redmi K90 Pro Max
2025, October 23
Status
18 Pro Max
Available. Released 2026, September 23
Redmi K90 Pro Max
Available. Released 2025, October 23
Dimensions
18 Pro Max
163.4 x 77.6 x 8.4 mm (6.43 x 3.06 x 0.33 in)
Redmi K90 Pro Max
163.3 x 77.8 x 7.9 mm (6.43 x 3.06 x 0.31 in)
Weight
18 Pro Max
235 g or 240 g (8.29 oz)
Redmi K90 Pro Max
218 g (7.69 oz)
Build
18 Pro Max
Glass front (Dragon Crystal Glass 3), aluminum frame
Redmi K90 Pro Max
Glass front (Dragon Crystal Glass), aluminum alloy frame, fiber-reinforced plastic back or silicone polymer back
SIM
18 Pro Max
Nano-SIM + Nano-SIM
Redmi K90 Pro Max
Nano-SIM + Nano-SIM
Other
18 Pro Max
IP68 dust tight and water resistant (immersible up to 6m for 30 min)
Redmi K90 Pro Max
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Type
18 Pro Max
LTPO AMOLED, 68B colors, 2160Hz PWM, 120Hz, Dolby Vision, HDR Vivid, HDR10+, BT.2020, 4000 nits (peak)
Redmi K90 Pro Max
AMOLED, 68B colors, 2560Hz PWM, 120Hz, Dolby Vision, HDR Vivid, HDR10+, 3500 nits (peak)
Size
18 Pro Max
6.9 inches, 116.2 cm2 (~91.6% screen-to-body ratio)
Redmi K90 Pro Max
6.9 inches, 116.6 cm2 (~91.8% screen-to-body ratio)
Resolution
18 Pro Max
1208 x 2624 pixels, 19.5:9 ratio (~418 ppi density)
Redmi K90 Pro Max
1200 x 2608 pixels, 19.5:9 ratio (~416 ppi density)
Protection
18 Pro Max
Xiaomi Dragon Crystal Glass 3
Redmi K90 Pro Max
Xiaomi Dragon Crystal Glass
Other
18 Pro Max
Secondary display (on the back): LTPO AMOLED, 120Hz, Dolby Vision, HDR Vivid, HDR10+, BT.2020, 4000 nits (peak) 2.9 inches, 596 x 976 pixels
Redmi K90 Pro Max
-
OS
18 Pro Max
Android 17, HyperOS 4
Redmi K90 Pro Max
Android 16, HyperOS 3
Chipset
18 Pro Max
Qualcomm SM8975 Snapdragon 8 Elite Extreme Gen 6 (2 nm)
Redmi K90 Pro Max
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
CPU
18 Pro Max
Octa-core (2x5.01 GHz Prime + 3x4.03 GHz Performance + 3x3.74 GHz Performance)
Redmi K90 Pro Max
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
GPU
18 Pro Max
Adreno 850
Redmi K90 Pro Max
Adreno 840
Card slot
18 Pro Max
No
Redmi K90 Pro Max
No
Internal
18 Pro Max
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Redmi K90 Pro Max
256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Other
18 Pro Max
UFS 4.1
Redmi K90 Pro Max
UFS 4.1
Triple
18 Pro Max
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
Redmi K90 Pro Max
50 MP, f/1.7, 23mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 50 MP, f/3.0, 115mm (periscope telephoto), 1/2.76", 0.64µm, PDAF (30cm - ∞), OIS, 5x optical zoom 50 MP, f/2.4, 18mm, 102˚ (ultrawide), 1/2.88", 0.61µm
Features
18 Pro Max
Laser AF, color spectrum sensor, Leica lens, Dual-LED dual-tone flash, HDR, panorama
Redmi K90 Pro Max
Color spectrum sensor, LED flash, HDR, panorama
Video
18 Pro Max
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 Pro Max
8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS, HDR10+
Single
18 Pro Max
50 MP, f/2.2, 21mm (wide), 1/2.88", 0.61µm, PDAF
Redmi K90 Pro Max
32 MP, f/2.2, 21mm (wide), 1/3.44", 0.64µm
Features
18 Pro Max
HDR, panorama
Redmi K90 Pro Max
-
Video
18 Pro Max
4K@30/60fps, 1080p@30/60fps, HDR10+, gyro-EIS
Redmi K90 Pro Max
4K@30fps, 1080p@30/60fps
Loudspeaker
18 Pro Max
Yes, with stereo speakers (3 speakers, with Dolby Atmos)
Redmi K90 Pro Max
Yes, with stereo speakers (with Dolby Atmos)
3.5mm jack
18 Pro Max
No
Redmi K90 Pro Max
No
Other
18 Pro Max
24-bit/192kHz Hi-Res & Hi-Res wireless audio Snapdragon sound
Redmi K90 Pro Max
Tuned by Bose Bose 2.1 stereo sound system with a woofer 24-bit/192kHz Hi-Res & Hi-Res wireless audio
WLAN
18 Pro Max
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi Direct
Redmi K90 Pro Max
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct
Bluetooth
18 Pro Max
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Redmi K90 Pro Max
5.4, A2DP, LE, LHDC 5.0, ASHA, MIHC
Positioning
18 Pro Max
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
Redmi K90 Pro Max
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC, GLONASS
NFC
18 Pro Max
Yes
Redmi K90 Pro Max
Yes
Infrared port
18 Pro Max
Yes
Redmi K90 Pro Max
Yes
Radio
18 Pro Max
No
Redmi K90 Pro Max
No
USB
18 Pro Max
USB Type-C 3.2, Display Port, OTG
Redmi K90 Pro Max
USB Type-C 3.2, Display Port, OTG
Sensors
18 Pro Max
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
Redmi K90 Pro Max
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass
Other
18 Pro Max
Ultra Wideband (UWB) support
Redmi K90 Pro Max
-
Type
18 Pro Max
Si/C Li-Ion 8500 mAh
Redmi K90 Pro Max
Si/C Li-Ion 7560 mAh
Charging
18 Pro Max
100W wired, PD3.0, QC3+, 100W PPS 50W wireless 27W reverse wireless
Redmi K90 Pro Max
100W wired, PD3.0, QC3+, 100W PPS 50W wireless 22.5W reverse wireless
Colors
18 Pro Max
Black, White, Pink, Red, Blue
Redmi K90 Pro Max
Black, White, Denim Blue, Lamborgini White
Models
18 Pro Max
2611FPNFAG
Redmi K90 Pro Max
-
Price
18 Pro Max
About 920 EUR
Redmi K90 Pro Max
About 500 EUR