UmiDigi A75x vs Xiaomi Redmi K90 Max

At a glance

Brand: UMiDIGI; Xiaomi
Release date: February 2026, 3 months ago; April 2026, 1 months ago
AnTuTu: 154.000 Antutu v10 Overall performance better than 53% of devices; 3.485.900 Antutu v11 Overall performance better than 98% of devices

Size: 6.75"; 6.83"
Resolution: 720 x 1600 px HD+; 1280 x 2772 px QHD
Type: LCD IPS; AMOLED
Density: 260 ppi Medium Density; 447 ppi Very high density
Aspect ratio: 20:9; 19.5:9
Features: Water Drop Notch, Refresh rate 90 Hz, Brightnes 450 cd/m² (typ), Max brightness HBM - 550 cd/m², 2.5D curved glass screen, Capacitive, Multi-touch, Frameless; Hole-punch Notch, SGS Certified, TÜV Rheinland Flicker-free Certified, TÜV Low Blue Light, 3840 Hz PWM, Refresh rate 165 Hz, Touch sampling rate 480 Hz, Peak brightness - 3500 cd/m², 8000000:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, 12 Bits panel (10-bit +2-bit FRC), Dolby Vision, Scratch resistant, Capacitive, Multi-touch, Frameless

Chipset: Spreadtrum Unisoc SC9863A; MediaTek Dimensity 9500
CPU: 4x Cortex A55 1.6 GHz + 4x Cortex A55 1.2 GHz; 1x4,21 GHz C1 Ultra + 3x3,5 GHz C1 Premium + 4x2,7 GHz C1 Pro
CPU type: Octa-Core; Octa-Core
Process: 28 nm; 3 nm
Frequency: 1.6 GHz; 4.21 GHz
GPU: PowerVR GE8322; Mali G1 Ultra
RAM: 4 GB; 12 GB
RAM type: LPDDR4X RAM; RAM LPDDR5X
64-bit: Yes; Yes

Resolution: 13 Mpx; 50 Mpx
Aperture: ƒ/ 1.8; ƒ/ 1.7
Flash: LED; LED
Optical stabilization: No; Yes
Slow motion: No, 30 fps; Yes, 120 fps
Features: 4K Video, Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; Flicker sensor, Noise reduction, 4K Video, 8K Video, Digital zoom, Dual camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, Manual focus, Laser autofocus (LAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Night Mode
Sensor: —; Omnivision OV50 Light Fusion 800
Pixel size: —; 1.00 µm
Sensor size: —; 1/1.55"

Dimensions: 78.0 mm 168.3 mm 8.1 mm Print 3D Model; 77.9 mm 162.9 mm 8.2 mm Print 3D Model
Weight: 189 g; 227 g
Materials: Plastic; Aluminium alloy , Fiberglass
Colors: Black Silver Green Cyan; Black Blue Gray
Usable surface: 85 %; 90 %
Water/dust resistance: —; IP68, IP69

Operating system: Android 16 Android 16; Android 16 HyperOS 3.X (Android 16)
Google services: With Google Mobile Services; Without Google Mobile services

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 4.2 LELow energy consumption; Bluetooth 5.4 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), HID (Human Interface Profile), LE (Low Energy); A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac; 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax) , WiFi 7 (802.11be)
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display; Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO
USB: USB Type-C; USB Type-C
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, Galileo; GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)

4G LTE: B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B13 (700), B17 (700), B20 (800), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100); B1 (2100), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B19 (800), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B43 (TDD 3700), B48 (TDD 3600), B66 (1700/2100)
3G: B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B8 (900); B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B8 (900)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); B2 (1900), B3 (1800), B5 (850), B8 (900)
5G: —; n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), n66 (1700), n77 (3700), n78 (3500)