BellaBot vs. KettyBot: do you need a runner, a greeter, or both?

Pudu Robotics makes both, and it is easy to assume they do the same job with a different face. They don't. BellaBot runs food and buses dishes on the floor. KettyBot stands at the front, greets guests, and leads them to a table. One is a runner, the other is a host. Most restaurants only need one of them — the trick is knowing which.

What BellaBot actually does

BellaBot is a multi-tray robot built for the dining room, not the door. It carries plates from the kitchen pass to the table, and carries bussed dishes back to the dish pit, on its own, all shift.

• Navigation: laser SLAM + visual SLAM, cruise speed 0.2–1.2 m/s, delivery speed capped around 0.9 m/s so it moves at a safe pace around guests.
• Runtime: roughly 11 hours unloaded on a full charge, about 4.5 hours to recharge — it can dock and top off between rushes without missing a shift.
• Award: BellaBot won a GOOD DESIGN AWARD in 2022, which is mostly a design footnote, but it tells you Pudu built this one to sit in a dining room, not a warehouse.

It does one job well: carry trays back and forth on a mapped route. It does not seat guests, take orders, or work the door.

What KettyBot actually does

KettyBot is a different machine for a different job. It stands near the entrance, greets arriving guests, and can lead them to a table. It also carries a screen that runs promos and specials while it works — a host stand and a menu board in one unit.

KettyBot does not run food. If your problem is servers walking too many trips between the kitchen and the tables, a greeter robot doesn't touch that.

The real difference, side by side

| | BellaBot | KettyBot | | --- | --- | --- | | Job | Runs food, buses dishes | Greets guests, leads to table, shows promos | | Where it works | The dining room floor | The entrance / host stand | | What it replaces | A server's walking trips | A host standing at the door | | Best fit | Busy floors, long kitchen-to-table runs, short-staffed shifts | High foot traffic at the door, a host role that's hard to keep staffed |

The two solve different labor problems. A restaurant burning labor on the walking between kitchen and tables needs BellaBot. A restaurant that struggles to keep a host at the door, or wants a promo screen greeting every guest, is looking at KettyBot. Some floors genuinely want both — a greeter at the door and a runner working the room — but that is two separate hires, not one machine wearing two hats.

Which one do you actually need?

Ask what's actually breaking on your floor before picking a robot:

• Servers logging the most steps carrying trays and bus tubs? That's BellaBot's job. See restaurant robots: how delivery and bussing robots cut labor and turn tables faster for the full case on where a runner pays off and where it doesn't.
• Guests waiting at the door with no one to seat them, or a host position you can't keep filled? That's KettyBot's job — plus the promo screen doing double duty as marketing while it works.
• Both, on a big floor with heavy walk-in traffic? Some sites run one of each. Scope it against your actual floor plan rather than guessing; a robot at the door does nothing for a slow kitchen-to-table run, and vice versa.

Neither robot takes an order, cooks, or reads the room the way a server does. They cover the repetitive, physical parts of the job so your staff spend the shift on guests.

A real deployment, not a demo

We service Pudu delivery robots on the floor at a Haidilao Hot Pot location in San Diego — running diagnostics on the units, working through OEM escalation for board-level faults, and keeping the fleet in service on a live restaurant floor. That's the difference between reading a spec sheet and having someone who actually shows up when a unit throws an error mid-shift.

What it costs to run either one

The robot itself is the smaller line item. The real cost is a working machine on your floor every service:

• Floor mapping and route setup so the robot knows your dining room, your tables, and your doorway.
• Service and spare parts — casters, sensors, and boards wear out on a robot working every shift.
• Downtime cover, because a robot down on a Friday night is the night you needed it most.
• Staff training, so your team actually works with it instead of around it.

Most restaurants rent rather than buy for exactly this reason — see robots-as-a-service explained and should you rent or buy a commercial robot? for the full breakdown.

How Service Robot Co. runs a restaurant robot program

We're vendor-neutral across Pudu, Bear Robotics, and Keenon — we match the robot to your floor, not the other way around.

• We scope your actual floor plan and tell you honestly whether you need a runner, a greeter, both, or neither.
• We deploy and map it — route setup, doorway placement, and real staff training so it works from the first service.
• We finance it as a rental — a predictable monthly cost instead of a capital purchase.
• We service it nationwide — 1,700+ service engineers across all 50 US states: 10-minute remote triage during business hours, 24-hour on-site dispatch, 24/7 emergency response.

See the delivery robots we deploy and the full delivery robots guide.

Common questions

What's the difference between BellaBot and KettyBot? BellaBot runs food from the kitchen to the table and buses dishes back. KettyBot greets guests at the door, leads them to a table, and displays promos on its screen. They solve different labor problems — one is a runner, one is a host.

Can one robot do both jobs? Not well. BellaBot is built to work the dining room floor on a mapped route; KettyBot is built to stand near the entrance and greet. A restaurant that wants both jobs covered runs one of each, not one machine doing double duty.

Do I need both? Only if both problems exist on your floor — servers overloaded with running and bussing, and a host position you can't keep staffed. Most restaurants have one problem, not two. Scope it against your actual floor before buying either.

Are Pudu robots the only option? No — Bear Robotics (Servi) and Keenon Robotics also build restaurant delivery robots, and we deploy all three brands. The right pick depends on tray count, payload, and how the robot needs to look in your room.

Get the robot that matches the actual problem

BellaBot and KettyBot are not interchangeable, and buying the wrong one means a robot parked in the corner instead of earning its keep. Tell us what's actually breaking on your floor — the walking, the door, or both — and we'll scope it, quote the rental, and keep it running. Tell us your floor plan and the problem, or browse the delivery robots we deploy.