Three of the most common meeting-room scheduling displays on the market. They look similar in a feature list and behave very differently in practice. The decisive differences are usually power and platform: how the device gets electricity, and which software stack it's tied to. Here's how to think about it.
| Embrava Room Sign | Joan 6 Pro | Logitech Tap Scheduler | |
|---|---|---|---|
| Display | 10.1" LCD, 1280 × 800 HD color | 6" e-paper, 758 × 1024, 16-level grayscale | 10.1" IPS LCD, 1280 × 800, 400 nits |
| Color status light | Yes, 256 RGB, 5 states | No (grayscale display only) | No dedicated light bar |
| Power | PoE + USB-C | Battery (~6 months) + optional PoE wall mount | PoE only (no battery, no USB) |
| Network | Wi-Fi 6 + Gigabit Ethernet | Wi-Fi 802.11 a/b/g/n + Bluetooth 5 | Wi-Fi 802.11 ax + 10/100 Ethernet |
| Check-in methods | RFID badge, NFC, QR, touch, Apple/Google Wallet, HID Mobile | Touchscreen only (single-room assignment) | Touch, plus whatever the host platform supports |
| Platform / software | Embrava's own platform; multi-calendar | Joan platform; subscription per device | Microsoft Teams Panels, Zoom Rooms, Robin, Appspace, Envoy, others |
| Calendars supported | Microsoft 365, Google Workspace, Exchange | M365, Google, Exchange, Teams, Slack, Zoom, ICS | Whatever the chosen platform supports |
| Install requirement | PoE or USB-C outlet nearby | None (truly wireless) or PoE mount | PoE infrastructure required |
| Mount options | Flush wall, glass wall, mullion | Smart Magnetic Mount included, PoE wall mount optional | Wall, glass, mullion (multi-surface mount included) |
| Pricing | Through Embrava sales (volume-based) | Direct on getjoan.com plus per-device subscription | Through Logitech channel; platform license separate |
This is the most consequential difference between the three. Each product made a different bet about how a meeting-room sign should be powered, and that bet drives the installation cost more than anything else.
Tap Scheduler is PoE-only. No battery, no USB option, no fallback. It pulls power and data over a single Ethernet cable using IEEE 802.3af. That's clean when your building already has PoE switches near every meeting room. It's expensive when it doesn't. Retrofitting PoE into an older office can mean pulling new Cat6, installing PoE injectors, or upgrading switches.
Joan 6 Pro goes the other way. The default install is fully wireless: a 5,400 mAh rechargeable battery driving an e-paper display that only redraws when the schedule changes. Joan rates this at "up to six months" between charges. There's an optional PoE wall mount if you want to wire it later, but the whole point of Joan is "no electricians required." If your office is a co-working space, a leased floor you can't drill into, or a historic building, this is the only viable option of the three.
Room Sign takes the middle path. Both PoE and USB-C are supported, with a Gigabit Ethernet port and a USB OTG port on the back. That gives IT a choice per room: PoE where it's available, USB-C from a nearby outlet where it isn't. The trade-off is that battery-only installs aren't supported, there has to be a cable somewhere.
None of these is "the right answer." If your PoE infrastructure is already paid for, the Logitech approach is simplest. If you can't or won't wire anything, Joan is the only choice. If you want flexibility per room, Room Sign gives it to you.
Room Sign and Tap Scheduler use a 10.1-inch LCD with 1280 × 800 resolution. They're full-color, fast-refreshing screens that can show a calendar, a meeting title, a check-in animation, anything. Tap Scheduler is rated at 400 nits, which is bright enough for any indoor lighting condition. Room Sign also adds a 256-color RGB light bar visible from across the floor, with five distinct states (Available, Reserved, In-Use, Ending, Requires Cleaning).
Joan 6 Pro is a different product category in this respect. The 6-inch e-paper display is grayscale, 16 shades. Refresh is slow by design (750 ms full refresh, 100 ms partial), but the trade-off is that the image stays on the screen without consuming power. Visually, it reads like a Kindle on the wall. Excellent up close, no contribution to room ambient lighting, no glow at night, no contrast in the corridor.
If "I can see if the room is available from twenty feet away while I'm walking past it" is part of your spec, Joan won't get you there on its own. If your buyers will stand directly in front of the device to interact with it, Joan is perfectly readable.
This is where Room Sign has the widest spread, by design. Every modality below is supported natively at the device:
Joan 6 Pro is touch-only at the device. Booking happens on the screen or through the calendar app on the user's phone or laptop. There's no RFID reader, no NFC reader, no badge integration. For an office that doesn't already issue badges, this is fine. For one that does, it's a missed opportunity: the badge already on your hip is the most frictionless way to claim a room.
Tap Scheduler is platform-dependent. The hardware has a touch screen and the certified Microsoft Teams Panel and Zoom Rooms experiences allow check-in via touch or via the host's video device, but device-level RFID and NFC are not part of the product. If your scheduling platform supports a particular check-in method, you get it. If it doesn't, the device doesn't add it.
Tap Scheduler is the most platform-coupled. The device is excellent inside Microsoft Teams Panels or Zoom Rooms Scheduling Display. It also officially supports Robin, Appspace, RICOH Spaces, Envoy Rooms, Korbyt Booking, and Comeen. The flip side: it's an empty screen without one of those platforms. If you switch platforms, the device follows.
Joan runs its own platform. The Joan Portal aggregates Microsoft 365, Google Workspace, Exchange, Teams, Slack, Zoom, and ICS calendars into one device-management surface. The platform is mandatory (the device requires a per-device subscription license), but it gives you a consistent experience across all those calendar back-ends.
Room Sign is platform-agnostic. Embrava's Connect Cloud sits between the device and your calendar systems (Microsoft 365, Google Workspace, Exchange), and integrates with the major workplace platforms (Microsoft Places, Robin, Eptura, ServiceNow). No Teams Panels certification, no Zoom Rooms certification, the device isn't trying to fit into someone else's experience. It's running our software, talking to your calendar.
The right answer depends on whether you want to standardise around a platform (pick Logitech and Microsoft or Zoom certify the rest of your stack), on a platform (pick Joan and get one console for everything), or across several platforms (pick Room Sign and let IT keep the calendar back-end without locking the hardware to it).
If your organisation has standardised on Microsoft Teams Panels or Zoom Rooms and you have PoE in every corridor already, Tap Scheduler is a clean choice. The platform is the experience, the hardware is just the panel that runs it.
If you can't wire your meeting rooms, or you'd rather not, Joan is the only product of the three that gives you a credible battery-powered install. The e-paper screen and the subscription model are the trade-offs you accept in return for not calling an electrician.
If you want a sign that's bright enough to see from across the floor, that takes a corporate badge as easily as a phone in Apple Wallet, and that doesn't tie you to a single scheduling platform, Room Sign is built for that case. It needs power, but it gives you the widest mix of check-in modalities and the most platform flexibility on the back end.
None of the three is "best." Pick the one whose constraints match your room.
Sixty minutes at our Hudson Yards Experience Center. Every product on the table, your calendar back-end pre-wired, no slides.