The Huawei Mate 90 Pro Max features a modular external camera, the Ruiying Z10, designed for the Collector’s Edition. This accessory includes a 1-inch RYYB sensor, a 10x continuous optical zoom, and a focal length range of 24–240 mm. The aperture varies from f/2.0 to f/4.5, enhancing the device's capability for capturing distant subjects.

The smartphone's integrated camera system includes a 50 MP main sensor with RYYB technology and f/1.4–f/4.0 aperture, a 40 MP ultra-wide lens, and a 200 MP periscope telephoto module. The latter offers 4x optical zoom, 8x optical-quality zoom, and 100x digital zoom. Color processing is managed by the third-generation Red Maple camera system.

The device is equipped with a 6.9-inch dual-layer OLED display with a resolution of 2848x1320 pixels, supporting a 1–120 Hz refresh rate and a peak brightness of 12 000 nits. It is powered by a 6800 mAh battery, supporting 100 W wired and 50 W wireless charging.

The 16 GB RAM version runs on the Kirin 9050 Pro chipset and HarmonyOS 7. The handset features IP68 and IP69 ingress protection ratings. Sales for the entire Mate 90 series have officially commenced in China following the product launch.