D31 Smart Food Delivery Robot vs Relay
Side-by-side comparison of D31 Smart Food Delivery Robot (Fujian Hantewin Intelligent Technology Co., Ltd.) and Relay (Relay Robotics) — specs, pricing, Robo Score, and verified deployments. Updated daily.
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Layer 1: Identity & Trust
Manufacturer Country
- D31 Smart Food Delivery RobotChina
- RelayUnited States
Year First Available
- D31 Smart Food Delivery Robot—
- Relay2014
Verified Deployments
- D31 Smart Food Delivery Robot0 Deployments
- Relay0 Deployments
Layer 2: Operational
Price
- D31 Smart Food Delivery Robot$4,200 USD
- Relay$26,000 USD
Battery / Shift Runtime
- D31 Smart Food Delivery Robot10 hrs
- Relay16 hrs
Availability Status
- D31 Smart Food Delivery RobotACTIVE
- RelayACTIVE
Physical
Compartment Type
- D31 Smart Food Delivery Robot—
- Relayhybrid
Navigation & Safety
Navigation Type
- D31 Smart Food Delivery Robotlidar slam,vision
- Relaylidar slam,vision
Power
Battery Runtime
- D31 Smart Food Delivery Robot10 hrs
- Relay16 hrs
Charge Time
- D31 Smart Food Delivery Robot4 hrs
- Relay—
Auto Docking
- D31 Smart Food Delivery Robot—
- RelayYes
Integration
Elevator API
- D31 Smart Food Delivery Robot—
- RelayYes
Floor Compatibility
- D31 Smart Food Delivery Robot—
- Relayhard floor,carpet
Commercial
Price (USD)
- D31 Smart Food Delivery Robot$4,200 USD
- Relay$26,000 USD
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | China | United States |
| Year First Available (values differ) | — | 2014 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $4,200 USD | $26,000 USD |
| Battery / Shift Runtime (values differ) | 10 hrs | 16 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical | ||
| Compartment Type (values differ) | — | hybrid |
| Navigation & Safety | ||
| Navigation Type (values differ) | lidar slam,vision | lidar slam,vision |
| Power | ||
| Battery Runtime (values differ) | 10 hrs | 16 hrs |
| Charge Time (values differ) | 4 hrs | — |
| Auto Docking (values differ) | — | Yes |
| Integration | ||
| Elevator API (values differ) | — | Yes |
| Floor Compatibility (values differ) | — | hard floor,carpet |
| Commercial | ||
| Price (USD) (values differ) | $4,200 USD | $26,000 USD |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Payload, Robot Weight, Dimensions, Tray Count, Tray Capacity, IP Rating, Max Speed, Min Passable Width, Obstacle Detection Range, Min Object Detection Height, Hot-Swap Battery, PMS / POS Integration, Fleet Management, Noise Level, Display Size, RaaS / Month, Warranty
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | D31 Smart Food Delivery Robot | Relay |
|---|---|---|
| Investment | $4,200 | $26,000 |
| Payback period | 1.0 mo | 6.2 mo |
| Net savings (5 yr) | $245,800 | $224,000 |
| ROI (5 yr) | +5852% | +862% |
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes D31 Smart Food Delivery Robot and Relay?
D31 Smart Food Delivery Robot is made by Fujian Hantewin Intelligent Technology Co., Ltd., based in CN. Relay is made by Relay Robotics, based in US.
How much does D31 Smart Food Delivery Robot cost compared to Relay?
D31 Smart Food Delivery Robot is listed at $4,200. Relay is listed at $26,000.
How do D31 Smart Food Delivery Robot and Relay compare on the Robo Score?
D31 Smart Food Delivery Robot scores 47.1 on the Robo Score. Relay scores 63.8. The Robo Score is a 0–100 credibility figure blending commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
Are D31 Smart Food Delivery Robot and Relay in the same category?
Both robots are classified as Delivery on Robolist. Filters and ranking treat them as direct alternatives.
What should a buyer ask vendors when choosing between D31 Smart Food Delivery Robot and Relay?
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Delivery Robot Vendor Selection: Insurance, Telemetry, and Fallback Procedures.
Going deeper — picking the right robot
Delivery Robot Vendor Selection: Insurance, Telemetry, and Fallback Procedures
9 min readDelivery Robots
Last-Mile Delivery Pilots: 90 Days to a Decision
7 min readDelivery Robots
Indoor vs Outdoor Delivery: Why the Cost Gap Is Larger Than It Looks
7 min readDelivery Robots
Build vs buy vs lease: which model fits a first deployment
8 min readChoosing Your First Robot
The hidden specs vendors hope you'll miss
10 min readReading the Spec Sheet
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About this comparison
D31 Smart Food Delivery Robot vs Relay compares two robots in the delivery category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robo Score is calculated.