Comparison controls
Swap robots without losing the table. Green cells mark numeric leaders; text rows show the tradeoffs that need judgment.
Green cells flag numeric leaders, while AI, sensors, and capability rows keep the real buying tradeoffs visible.
Price
Weight
Battery Life
Max Speed
AI
Sensors
Connectivity
Status
Category
Capabilities
| Spec | |||
|---|---|---|---|
| Price | ¥98,780 JPY | N/A | $499 USD |
| Height | Not officially disclosed | 57 cm | 7.1 in (18.0 cm) |
| Weight | Approx. 400g | Approximately 15 kg | 3.86 lb (1.75 kg) |
| Battery Life | 2,875 mAh lithium-ion battery; runtime not officially disclosedNot safely comparable as a typed unit | Approximately 3-5 hours | ~1.5 hours continuous use per swappable battery |
| Charging Time | Not officially disclosed; USB-C power, DC 5V/3ANot safely comparable as a typed unit | Approximately 2.5 hours | Not officially disclosed |
| Max Speed | Stationary tabletop companion with 2-axis movementNot comparable for this robot | 13.3 km/h | 17.9 mph |
| Degrees of Freedom | N/A | N/A | N/A |
| AI | ChatRomi 1.0 plus Lacatan-only ChatRomi 2.0; official guidebook says ChatRomi 2.0 uses OpenAI Realtime API, web search, optional visual understanding, customizable speaking styles, and long-term memory support after the April 21, 2026 Lacatan update | 128 TOPS onboard AI compute, self-developed spatial foundation model, on-device spatial intelligence, physical-space agent behavior, generative actions/dances, and large-language-model voice system | Onboard subject tracking and automatic highlight-editing workflow; detailed perception model, compute, and safety stack have not been publicly disclosed. |
| Sensors | 3 microphones, Camera for face detection and visual features, Touch sensor, Illuminance sensor, Accelerometer / gyroscope sensor | Binocular Depth Vision, 16-line LiDAR, Four-microphone Array, 360° High-precision UWB, Interaction Screen, Interaction Lights, Night Lighting | 4K camera (4K/30fps, 3K/60fps, 1080p/100fps modes), Onboard visual tracking for auto-follow filming, Motion controller input |
| Connectivity | Wi-Fi 802.11a/b/g/n/ac/ax (2.4GHz and 5GHz), Bluetooth 5.4, USB Type-C power, Romi cloud service | Bluetooth 5.4, Dual-band Wi-Fi 6, 360° UWB | Wi-Fi 6, Bluetooth 5.4 |
| Voice Assistants | ChatRomi 1.0, ChatRomi 2.0 | Large-language-model voice system | None |
| Status | Available | Available | Pre-order |
| Category | Companions | Quadruped | Companions |
| Manufacturer | MIXI | Vbot | Mondo Robotics |
Capability matrix
Use this grid when the shortlist is already close and feature gaps become the real tiebreaker.
| Capability | Romi Lacatan | Vbot SuperDog | Beni |
|---|---|---|---|
| 2.4-inch QVGA expressive display | ✓ | — | — |
| 4K Video Capture | — | — | ✓ |
| All-Terrain Driving | — | — | ✓ |
| All-terrain Walking | — | ✓ | — |
| Anti-pinch Joint Design | — | ✓ | — |
| Automatic Highlight Editing | — | — | ✓ |
| Autonomous Follow Filming | — | — | ✓ |
| Autonomous Obstacle Avoidance | — | ✓ | — |
| Behind / Side / Orbit Camera Angles | — | — | ✓ |
| Camera and Selfie-pole Expansion | — | ✓ | — |
| Cargo Carrying | — | ✓ | — |
| Conversational AI companionship | ✓ | — | — |
| Customizable speaking styles | ✓ | — | — |
| Diary summaries in the Romi app | ✓ | — | — |
| Explore Mode Live POV | — | — | ✓ |
| Face recognition and family name calling | ✓ | — | — |
| Game Mode | — | — | ✓ |
| Generative Actions and Dances | — | ✓ | — |
| Household Assistant Use | — | ✓ | — |
| Intelligent Following | — | ✓ | — |
| Internal and microSD Storage | — | — | ✓ |
| Long-term memory with separate remember/speak app toggles | ✓ | — | — |
| Manual Motion-Controller Driving | — | — | ✓ |
| Modular Expansion Backplate | — | ✓ | — |
| Obstacle Jumps up to 10 in | — | — | ✓ |
| Optional visual understanding | ✓ | — | — |
| Outdoor Companion Use | — | ✓ | — |
| Quick-Swap Indoor and Outdoor Wheels | — | — | ✓ |
| Remote check-in through the Romi app | ✓ | — | — |
| Remote-free Quadruped Operation | — | ✓ | — |
| Safety-focused Rounded Body | — | ✓ | — |
| Security Guardian Use | — | ✓ | — |
| Swappable Battery | — | — | ✓ |
| Touch response | ✓ | — | — |
| Tow-cart Support | — | ✓ | — |
| Voice recognition | ✓ | — | — |
| Voice-command Navigation | — | ✓ | — |
| Wake-word conversation start | ✓ | — | — |
| Weather, English conversation, songs, games, and other support features | ✓ | — | — |
Use this flow to get to a clean shortlist fast. The route works best as a dense research workbench, not a marketing page.
Start with robots that solve the same job. Use category anchors like Humanoid, Cleaning, Companions, Research before you worry about micro-spec wins.
Check price, status, battery, sensors, and capabilities before getting lost in minor spec rows.
Once you have a shortlist, hide shared rows. That turns the table from a spec dump into a real decision tool.
A dedicated cleaner versus a home assistant with cleaning features can reveal whether you really need a specialist or just broader household coverage. Compare around the same outcome, not the same marketing language. And when blank-page friction is the problem, use one of the prebuilt quick-start pairings in the workbench above — open one, swap robots, and keep moving.
Turn comparison rows into an actual recommendation — not just more reading.
Not all spec deltas matter equally. Rank your buying criteria before crowning a winner.
The sticker price is only one row. Subscriptions, consumables, and service access often decide the real winner.
Subscriptions
Cloud AI and premium app tiers can make a cheaper robot more expensive over three years.
Consumables
Brushes, pads, filters, and bags flip the value story on high-frequency robots.
Energy & battery
Large batteries and frequent charging reveal everyday operating demands.
Repair & warranty
Local servicing and spare-parts access are the quietest but most important long-term costs.
Specs describe ideal conditions. Your rooms, pets, and Wi-Fi determine what actually performs.
Of 410 robots tracked, 252 are available now. For household tasks, getting a capable robot into daily use today usually beats waiting for incremental improvements. For research or early-adopter use, waiting can make sense if the next model changes the platform story.
If two robots are still neck-and-neck, use softer signals that affect ownership quality more than spec sheets admit.
Comparison FAQ
Short answers to the questions that usually show up once the shortlist is live and the tradeoffs feel real.
