A 75-inch 4K interactive display with HarmonyOS, wireless projection, annotation, and multi-screen collaboration features.
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The Huawei IdeaHub K3 IHK3-75SA has a 75-inch 4K screen with 3840 × 2160 resolution, zero-gap screen bonding, 10-bit colour depth, a 60 Hz refresh rate, and a 16:9 aspect ratio. It supports writing with ultra-low latency, recognition of Chinese, English, and graphics, screenshots and annotations, whiteboard saving via QR code, and multiple pen types and colours. Connectivity features include Wi-Fi 6, Wi-Fi Direct point-to-point projection, and Type-B, Type-C, and USB 3.0 ports for projection and data copying. The system has 12 GB RAM, 128 GB flash storage, and supports HarmonyOS and Windows when an OPS is used.
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The same product in different sizes. Each is ordered separately and has its own price, specifications and stock.
How this product lines up against others in Interactive Displays.
| Processor model | — | Rockchip RK3588 | 13th Gen Intel Core i7 |
| Screen size | 75 inches | — | — |
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86-inch
IdeaHub K3 — 86
Price on requestOpen| Glass hardness | 7 H | — | — |
| Screen refresh rate | 60 Hz | — | — |
| Colour depth | 10-bit (8-bit + FRC) | — | — |
| Aspect ratio | 16:9 | — | — |
| Anti-glare | Yes | — | — |
| Adaptive brightness | Yes | — | — |
| Optical anti-blue light | Yes | — | — |
| Eye comfort certification | TÜV Rheinland Low Blue Light (Hardware Solution), TÜV Rheinland Eye Comfort | — | — |
| Styluses included | 2 count | — | — |
| Protective cover | Yes | — | — |
| Display resolution | 3840 × 2160 px | — | — |
| CPU cores | — | Cortex-A76 · 4 count, Cortex-A55 · 4 count | — |
| CPU maximum clock | — | 2.4 GHz | — |
| GPU model | — | G610 MC4 | Integrated Intel UHD Graphics |
| Backlight type | D-LED | — | — |
| Memory capacity | 12 GB | 8 GB | 16 GB |
| Screen lamination | Zero-gap bonding | — | — |
| Memory type | — | LPDDR5 | DDR4 |
| Memory channels | — | 2 count | 2 count |
| Memory form factor | — | On-board (soldered) | — |
| Onboard storage capacity | 128 GB | 128 GB | 512 GB |
| Onboard storage type | — | eMMC | — |
| Operating system | Windows, HarmonyOS | Android | Windows IoT, Windows |
| Operating system version | — | 15.0 & Above | Windows 11 IoT Enterprise / Enterprise 64-bit class, depending on configuration |
| Expansion slots | — | M.2 · E · 2230 · PCIe 3.0 · 1 count | — |
| USB ports | — · Type-B · —, — · Type-C · —, USB 3.0 · Type-A · — | — | USB 2.0 · Type-A · 3 ports |
| Video ports | — | HDMI · Input · 4K@60 · 1 ports, HDMI · Output · 4K@60 · 1 ports | HDMI · Output · 4K@60 · 1 ports |
| Antenna count | — | 2 count | 2 count |
| Bluetooth version | — | 5.2 | 5.2 |
| Wi-Fi Generation | Wi-Fi 6 (802.11ax) | Wi-Fi 6 (802.11ax) | Wi-Fi 6 (802.11ax) |
| Wi-Fi standard | 802.11ax | 802.11ax | 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax |
| Frequency band | 2.4 GHz, 5 GHz | 2.4 GHz, 5 GHz | — |
| Compliance standard | CE | — | — |
| Ethernet controller | — | Realtek 8111H | — |
| Switch chipset | — | RTL8366SD | — |
| Module form factor | — | OPS-C | OPS |
| OPS slot | Yes | — | — |
| Width | 1705.7 mm | 180 mm | 195 mm |
| Height | 1040.5 mm | 30 mm | 30 mm |
| Depth | 91.8 mm | 195 mm | 180 mm |
| Weight | 47.8 kg | — | — |
| Colour | — | Black | Black |
| Installation method | Wall | OPS slot | OPS slot |
| Cooling method | — | Passive (fanless) | — |
| Acoustic noise | — | 35 dB | — |
| Storage temperature | — | -20 to 60 °C | -20 to 70 °C |
| Operating humidity | — | 5 to 95 % | — |
| Storage humidity | — | 5 to 95 % | — |
| Physical controls | — | Power button, Reset button | — |
| Status indicators | — | 2 count | — |
| Input Type | AC mains | DC | DC |
| Lifecycle status | Active | — | — |
| Operating temperature | — | 0 to 40 °C | 0 to 40 °C |
| IP rating | None | None | None |
| Specification group | active | — | active |
| Device Role | — | Accessory | — |
| Link technology | Wi-Fi | Ethernet, Wi-Fi, Bluetooth | Wi-Fi, Bluetooth, Ethernet |
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