A 75-inch 4K interactive collaboration display with integrated speakers, microphones, wireless connectivity, and meeting features.
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The Huawei IdeaHub B3 IHB3-75SA features a 75-inch 4K display with zero-gap bonding, 16 ms latency, and a touch sensing distance of ≤ 1.5 mm. It includes four speaker units with 30 W total power and six microphones with a 10 m sound pickup distance. Native meeting apps are Huawei Cloud Meeting and WeLink, with support for BYOM, auto-framing, intelligent tracking, Wi-Fi 6, NFC, and dual-stream transmission. The device has an 8-core CPU, 8 GB RAM, 64 GB flash storage, and runs HarmonyOS; Windows is supported when an OPS is installed.
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How this product lines up against others in Smart Whiteboards.
| Network Ports | Copper and Ethernet · 1G · Copper · 1 ports | — | — |
| Video resolution | 8 MP (3840 × 2160) | — | — |
| Frame rate | 30 fps | — | — |
| Installation method | Wall | — | — |
| Wi-Fi standard | 802.11ax | — | — |
| Screen size | 75 inches | 86 inches | 75 inches |
| Horizontal field of view | 80 ° | — | — |
| Vertical field of view | 50 ° | — | — |
| RS-232 ports | 1 ports | — | — |
| Aspect ratio | 16:9 | — | — |
| Optical anti-blue light | Yes | — | — |
| Eye comfort certification | TÜV Rheinland Low Blue Light (Hardware Solution), TÜV Rheinland Eye Comfort | — | — |
| Styluses included | 2 count | — | — |
| Colour gamut (NTSC) | 85 % | — | — |
| TV distortion | 2 % | — | — |
| DNN-based dereverberation | Yes | — | — |
| Package height | 1170 mm | — | — |
| Package width | 1900 mm | — | — |
| Package depth | 220 mm | — | — |
| Gross weight | 57.8 kg | — | — |
| Handwriting recognition | Yes | — | — |
| Digital zoom | 2 x | — | — |
| Audio ports | 3.5 mm TRS · Input · 1 ports, 3.5 mm TRS · Output · 1 ports | — | — |
| Display resolution | 3840 × 2160 px | 3840 × 2160 px | 3840 × 2160 px |
| Touch technology | — | Infrared | Infrared |
| Backlight type | D-LED | D-LED | D-LED |
| Screen lamination | Zero-gap bonding | Zero-gap bonding | Zero-gap bonding |
| Writing latency | 16 ms | 16 ms | 16 ms |
| Touch sensing distance | 1.5 mm | 1.5 mm | 1.5 mm |
| Number of speakers | 4 count | 4 count | 4 count |
| Speaker total power | 30 W | 30 W | 30 W |
| Speaker frequency range | 100 to 20000 Hz | 100 to 20000 Hz | 100 to 20000 Hz |
| Number of microphones | 6 count | 6 count | 6 count |
| Microphone frequency range | 100 to 20000 Hz | 100 to 20000 Hz | 100 to 20000 Hz |
| Sound pickup distance | 10 m | 10 m | 10 m |
| Sound pickup angle | 180 ° | 180 ° | 180 ° |
| Native meeting apps | Huawei Cloud Meeting, WeLink | Huawei Cloud Meeting, WeLink | Huawei Cloud Meeting, WeLink |
| Dual stream | 1080p30fps+1080p15fps/4K3fps | 1080p30 + 1080p15, or 4K3 | 1080p30 + 1080p15, or 4K3 |
| BYOM | Yes | Yes | Yes |
| Auto-framing | Yes | No | No |
| Intelligent tracking | Yes | No | No |
| Acoustic baffle | — | No | No |
| Memory capacity | 8 GB | 8 GB | 8 GB |
| Onboard storage capacity | 64 GB | 64 GB | 64 GB |
| Operating system | HarmonyOS, Windows | HarmonyOS, Windows | HarmonyOS, Windows |
| OPS slot | Yes | Yes | Yes |
| Wi-Fi Generation | Wi-Fi 6 (802.11ax) | Wi-Fi 6 (802.11ax) | Wi-Fi 6 (802.11ax) |
| Frequency band | 2.4 GHz, 5 GHz | 2.4 GHz, 5 GHz | 2.4 GHz, 5 GHz |
| NFC | Yes | Yes | Yes |
| USB ports | USB 3.0 · Type-C · 1 ports, USB 3.0 · Type-A · 3 ports | USB 3.0 · Type-C · 1 ports, USB 3.0 · Type-A · 3 ports, USB 2.0 · Type-A · 2 ports, USB 2.0 · Type-B · 1 ports | USB 3.0 · Type-C · 1 ports, USB 3.0 · Type-A · 3 ports, USB 2.0 · Type-A · 2 ports, USB 2.0 · Type-B · 1 ports |
| Height | 1040.5 mm | 1157 mm | 1016.9 mm |
| Width | 1705.7 mm | 1953 mm | 1705.7 mm |
| Depth | 91.8 mm | 91.8 mm | 91.8 mm |
| Weight | 47.8 kg | 61.6 kg | 46.7 kg |
| Video ports | HDMI · Input · 4K@30 · 2 ports, HDMI · Output · 4K@30 · 1 ports | HDMI · Input · 4K@30 · 2 ports, HDMI · Output · 4K@30 · 1 ports | HDMI · Input · 4K@30 · 2 ports, HDMI · Output · 4K@30 · 1 ports |
| Port speed | 1G | 1G | 1G |
| Lifecycle status | Active | — | — |
| Specification group | — | active | active |
| Link technology | Ethernet, Wi-Fi | Ethernet, Wi-Fi | Ethernet, Wi-Fi |