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Device 2

7 Redmi K90 Max
LAUNCH DATE
Announced 13 April 2023 2026, April 21
Released 21 April 2023 (Taiwan; pre-orders from 14 April 2023) 2026, April 21
Status Available Available
NETWORK
2G Bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Bands HSDPA 800 / 850 / 900 / 1700 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G LTE FDD: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 32, 66; TDD: 34, 38, 39, 40, 41, 42, 43, 48 (WW version); US version adds 29, 30, 71 1, 3, 4, 5, 7, 8, 19, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66
5G SA/NSA n1, n2, n3, n5, n7, n8, n12, n18, n20, n25, n26, n28, n38, n40, n41, n48, n66, n77, n78, n79 (WW version); US version adds n29, n30, n71 1, 3, 5, 7, 8, 28, 34, 38, 39, 40, 41, 48, 77, 78 SA/NSA
Speed HSPA, LTE, 5G HSPA, LTE, 5G
Technology GSM / HSPA / LTE / 5G GSM / WCDMA / LTE / 5G
BODY
Build Glass front (Gorilla Glass Victus) Glass front (Dragon Crystal Glass), Aluminum frame, Glass-fiber reinforced plastic back or silicone polymer back
Dimensions 173 x 77 x 10.4 mm 162.9 x 77.9 x 8.1 mm (6.41 x 3.07 x 0.32 in)
IP Rating IP54 IP66/IP68/IP69 Dust/water Resistant
SIM Nano-SIM + Nano-SIM (dual standby, DSDV LTE+LTE) Nano-SIM + Nano-SIM
Weight 239 g 227 g
DISPLAY
Brightness 1000 nits (outdoor); 1500 nits (peak) 3500 nits (peak)
Features Delta-E < 1; 720Hz touch sampling rate; DC dimming —
Protection Corning Gorilla Glass Victus Xiaomi Dragon Crystal Glass
Refresh Rate 165Hz (selectable 60/90/120/144/165Hz) 165Hz
Resolution 1080 x 2448 pixels (FHD+), 20.4:9 ratio (395 ppi) 1280 x 2772 pixels
Screen-to-body — ~90.3%
Size 6.78 inches 6.83 inches
Type Samsung AMOLED, 165Hz, 1ms, HDR10+ AMOLED
PLATFORM
CPU Octa-core (1x3.2 GHz Cortex-X3 + 2x2.8 GHz Cortex-A715 + 2x2.8 GHz Cortex-A710 + 3x2.0 GHz Cortex-A510) Octa-core (1x4.21 GHz C1-Ultra & 3x3.5 GHz C1-Premium & 4x2.7 GHz C1-Pro)
Chipset Qualcomm Snapdragon 8 Gen 2 (SM8550) MediaTek Dimensity 9500
GPU Adreno 740 Mali-G1 Ultra MC12
OS Android 13, ROG UI Android 16; HyperOS 3
MEMORY
Card slot — No
Internal 256GB / 512GB 256 / 512 GB / 1 TB
RAM 12GB / 16GB LPDDR5X 12 / 16 GB
Storage Type UFS 4.0 UFS 4.1
Storage/RAM variants 256GB 12GB RAM; 512GB 16GB RAM 256 / 512 GB / 1 TB; 12 / 16 GB RAM
MAIN CAMERA
Features 3-axis electronic image stabilization LED Flash, Panorama, HDR
MAIN CAMERA 50 MP, f/1.9, 23.8mm (wide), 1/1.56", 1.0µm, Sony IMX766 | 13 MP, 12.5mm, 120° (ultrawide) | 5 MP (macro) 50 MP main with OIS; 8 MP ultrawide
Video 8K@24fps, 4K@30/60fps, 1080p, 720p@30/60fps; slow motion 4K@120fps, 1080p@120/240fps, 720p@480fps; 3-axis EIS 8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS
SELFIE CAMERA
Features Pixel binning (8MP output) HDR
Selfie camera 32 MP, OmniVision OV32 (Quad Bayer), 29.4mm equivalent 20 MP
Video 1080p 1080p@30fps
SOUND
3.5mm jack Yes; Hi-Res Audio up to 384 kHz / 32-bit; Dirac Virtuo; tri-microphones with noise reduction No
Loudspeaker Yes, with stereo speakers (dual front-facing 12 x 16 mm, Dirac HD Sound) Yes, with Stereo Speakers
COMMUNICATION
Bluetooth 5.3, aptX Adaptive, aptX Lossless 5.4, A2DP, LE, LHDC
NFC Yes Yes
Positioning GPS (L1+L5), GLONASS (L1), Galileo (E1+E5a), BeiDou (B1+B2a), QZSS (L1+L5), NavIC (L5) Yes
Radio — No
USB 2x USB Type-C: side USB 3.1 Gen 2 (DisplayPort 1.4 per Notebookcheck), bottom USB 2.0 USB Type-C
WLAN Wi-Fi 802.11 a/b/g/n/ac/ax/be (Wi-Fi 7), 2x2 MIMO, 2.4/5/6GHz Wi-Fi 7, dual-band, Wi-Fi Direct
FEATURES
Other features AirTrigger 3 ultrasonic shoulder buttons; bypass charging; optional AeroActive Cooler 7 (Peltier, 13 x 38 mm subwoofer) —
Sensors In-display fingerprint, face recognition, gyroscope, accelerometer, e-compass, proximity, ambient light, hall sensor, ultrasonic AirTrigger 3 sensors Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass
BATTERY
Capacity 6000 mAh 8550mAh
Charging Type 65W wired HyperCharge (QC 5.0 / PD 3.0), 0-100% in 42 min; bypass charging; no wireless charging listed 100W wired; 22.5W reverse wired
Type Li-Po 6000 mAh (equivalent; 2 x 3000 mAh cells) Non-removable Li-Po Battery
ADDITIONAL INFORMATION
Colors Phantom Black; Storm White Silver, Blue, Black
Compatibility Bands differ by WW/US/CN version; dual Nano-SIM (no eSIM listed); launched on Android 13 with upgrade promise to Android 15 (Notebookcheck) China
Cooling ROG GameCool 7: rapid-cycle vapor chamber (6 liquid-return channels), boron nitride, 16,000 mm² graphite sheets; optional AeroActive Cooler 7 —
Launch Price TWD 33,990 (Taiwan launch) —
Models AI2205 Redmi K90 Max
Models and regions WW, US and CN versions with different band lists (US adds 5G n29/n30/n71 and LTE B29/B30/B71) —
Price in Nigeria ₦1,495,500 (estimate, converted from Taiwan launch price) ₦1,150,000
SECURITY
Security In-display fingerprint (optical), face recognition Biometric security: Fingerprint (under display, ultrasonic).