Compare robots

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4 robots selected.

The comparison cards start below. Open the editor only when you need to swap the shortlist.

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G1 R1 R1-A7-D Stretch 4
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412 robots 9 categories 173 priced

Comparing 4 robots

Green cells flag numeric leaders, while AI, sensors, and capability rows keep the real buying tradeoffs visible.

G1R1R1-A7-DStretch 4
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Sources and record checks

Record checks are not independent testing or confirmation of every claim. Official sites provide manufacturer context; source context explains the record.

G1

Record last checked: 2026-06-06

Official site Source context

R1

Record last checked: 2026-06-09

Official site Source context

R1-A7-D

Record last checked: 2026-06-09

Official site Source context

Stretch 4

Record last checked: 2026-05-13

Official site Source context
Each row compares one spec across your shortlist. Green marks the best value.
G1 G1 R1 R1 R1-A7-D R1-A7-D Stretch 4 Stretch 4

Price

G1
$13,500 USD
Price details

Starting at $13,500 before tax/shipping; EDU version: contact sales; shop quotes $300-$1,200 shipping plus buyer-paid duties/import clearance

R1
$4,900 USD
Price details

From $4,900 (R1 Air pre-sale); R1 standard $5,900; EDU contact sales; official shop says shipments begin in June 2026, shipping is $300-$1,200, and buyers handle customs duties, taxes, and import clearance.

R1-A7-D
$100,000 USD
Price details

Official Unitree shop lists the R1-D line from $4,290 and the R1-A7-D variant at $100,000 USD, but marks the product sold out/unavailable; purchasing and delivery terms should be confirmed through Unitree sales.

Stretch 4
$29,950 USD
Price details

$29,950 list price; available now for research/enterprise buyers and in-home assistive pilot deployments

Height

G1
132cm (standing)
R1
123cm (standing)
R1-A7-D
68.3 cm stowed / 160 cm raised
Stretch 4
160cm

Weight

G1
35kg (with battery)
R1
~29kg (with battery; ~27kg for Air model)
R1-A7-D
~32 kg
Stretch 4
46kg (33kg with ballast removed for transport)

Battery Life

G1
~2 hours
R1
~1 hour (mixed activity)
R1-A7-D
Approx. 1.5 hours (battery-powered; external power also supported)
Stretch 4
8 hours (light CPU load)

Max Speed

G1
>2 m/s trot speed
R1
Not officially disclosed
R1-A7-D
Not officially disclosed
Stretch 4
Not officially disclosed

AI

G1
8-core high-performance CPU (optional NVIDIA Jetson Orin for EDU)
R1
8-core CPU + GPU; optional NVIDIA Jetson Orin (40–100 TOPS, EDU only); UnifoLM multimodal LLM
R1-A7-D
8-core body processor plus 8-core head processor with 10 TOPS head-module compute; optional NVIDIA Jetson Orin 40–100 TOPS module
Stretch 4
Open-source ROS 2 and Python SDK with reference autonomy demos for mapping, navigation, 3D SLAM, data collection, and VLM grasping; IEEE Spectrum reports Intel NUC 15 plus NVIDIA Jetson Orin NX onboard compute.

Sensors

G1
Depth Camera, 3D LiDAR, 4 Microphone Array, Dual Joint Encoders
R1
Monocular camera (R1 Air); binocular camera (R1/R1 EDU), 4-Mic Array, Dual 6-Axis IMU
R1-A7-D
Chassis LiDAR, Binocular camera / depth module, Optional wrist camera, 4-array microphone
Stretch 4
Wide-FOV depth sensing, High-resolution RGB cameras, Calibrated RGB + depth perception, Floor hazard sensing, Pair of hemispherical LiDARs, Luxonis vision/navigation cameras, Wrist-mounted depth camera

Connectivity

G1
Wi-Fi 6, Bluetooth 5.2
R1
Wi-Fi 6, Bluetooth 5.2
R1-A7-D
Wi-Fi 6, Bluetooth 5.2
Stretch 4

Status

G1
Available
R1
Pre-order
R1-A7-D
Active
Stretch 4
Available

Category

G1
Humanoid
R1
Humanoid
R1-A7-D
Humanoid
Stretch 4
Home Assistants
More specifications (4)

Includes rows even when values are not recorded.

Charging Time

G1
Not disclosed
R1
Not officially disclosed
R1-A7-D
Not officially disclosed
Stretch 4
Not officially disclosed

Degrees of Freedom

G1
N/A
R1
N/A
R1-A7-D
N/A
Stretch 4
N/A

Voice Assistants

G1
None
R1
UnifoLM (voice + image commands)
R1-A7-D
Voice interaction via 4-mic array and dual speakers
Stretch 4
None

Manufacturer

G1
Unitree Robotics
R1
Unitree Robotics
R1-A7-D
Unitree Robotics
Stretch 4
Hello Robot

Capabilities

G1

Bipedal WalkingDexterous Hands (optional Dex3-1, EDU only)Foldable Design (69cm folded)OTA UpgradesObject ManipulationResearch PlatformSecondary Development (EDU)

R1

26 Degrees of Freedom (standard)Bipedal Walking & RunningCartwheels & HandstandsCustomizable Shell/FinishGesture RecognitionOTA Software UpdatesOptional Dexterous Hands (EDU)Push RecoveryROS 2 SupportSecondary Development (EDU)Voice & Image Interaction (UnifoLM)

R1-A7-D

7-DOF ArmsBinocular RGB-D PerceptionFull-Stack Secondary DevelopmentHeight-Adjustable TorsoMobile Dual-Arm ManipulationOTA Software UpdatesOpen Arm, Audio, Lighting, Vision, and End-Effector InterfacesOptional Five-Finger Dexterous HandOptional Three-Finger Dexterous HandOptional Two-Finger GripperVoice InteractionWheeled Mobile Base±0.1 mm End-Clamp Accuracy Claimed

Stretch 4

3D SLAM55cm + 6cm Wrist ReachAssistive Teleoperation and Pilot DeploymentsAutonomous Mapping and NavigationData Collection ToolsMobile ManipulationOmnidirectional Indoor MobilityOpen-Source Software PlatformQuick-Release ToolingSelf ChargingVLM Grasping Demos

How to Compare Robots

Use this flow to get to a clean shortlist fast. The route works best as a dense research workbench, not a marketing page.

1

Choose comparable robots

Start with robots that solve the same job. Use category anchors like Humanoid, Cleaning, Companions, Research before you worry about micro-spec wins.

2

Read the big deltas first

Check price, status, battery, sensors, and capabilities before getting lost in minor spec rows.

3

Switch to differences only

Once you have a shortlist, hide shared rows. That turns the table from a spec dump into a real decision tool.

Cross-category comparisons still have value

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.

Making Your Decision

Turn comparison rows into an actual recommendation — not just more reading.

1

Weighted priorities

Not all spec deltas matter equally. Rank your buying criteria before crowning a winner.

  • List must-haves — smart-home platform, clearance, shipping status, or anything that eliminates a robot instantly.
  • Pick your top 3 differentiators — navigation, noise, battery, support, or whatever changes daily use.
  • Score only the finalists against those. The robot that wins your real priorities beats the one with the most green cells.
2

Total cost of ownership

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.

3

Environment check

Specs describe ideal conditions. Your rooms, pets, and Wi-Fi determine what actually performs.

  • Floor types — carpet, hardwood, tile, and transition handling.
  • Space layout — open plans vs. multi-room homes with tight doorways.
  • Wi-Fi coverage — cloud-heavy robots need stable signal everywhere.
  • Household — pets, kids, shared spaces, and noise tolerance.

Purchase and deployment access

Available listings: 125. Pre-order listings: 54. Active records: 130. Available indicates an ordering listing, not confirmed stock. Pre-order indicates a reservation listing, not immediate delivery. Active status alone does not confirm public purchase availability or deployment. Other statuses do not establish a current purchase listing. Confirm regional access, stock, reservation terms, and delivery with the manufacturer.

When it's too close to call

If two robots are still neck-and-neck, use softer signals that affect ownership quality more than spec sheets admit.

Return policy User community Ecosystem Aesthetics

Comparison FAQ

Questions buyers ask before the final click

Short answers to the questions that usually show up once the shortlist is live and the tradeoffs feel real.

Frequently Asked Questions

Using the workspace
How many robots can I compare at once?
You can compare up to four robots at once. Two or three is usually the cleanest decision view, but four-way comparisons work well for wider market scans.
What does 'Show differences only' do?
It hides rows where all selected robots share the same value, leaving only the rows that actually change your decision. It is especially useful for same-brand or same-category shortlists.
Can I compare robots from different categories?
Yes. You can compare any of the 412 robots in the database. Cross-category comparisons work best when the robots still compete for the same outcome in your home or workflow.
What makes a good comparison?
The best pairings share at least one real-world anchor: same job, similar price band, same room constraints, or competing brand tier. That keeps the table decision-focused instead of random.
Sharing & shortlisting
How do I share a comparison?
Once you have a live shortlist, a Share this comparison link appears in the workbench. It preserves your selected robots and the differences-only toggle in a permanent URL.
Can I save or bookmark a comparison for later?
Yes. Every live comparison has a stable route, so bookmarking the page preserves the exact configuration you built.
Can I compare by price alone?
Price is one row in the compare table, but if you want pure price sorting first, the all robots page is the better place to shortlist before coming back here.
Data & methodology
Are specifications up to date?
ui44 comparison data is sourced from official manufacturer documentation and re-verified on a rolling basis. Shipping products get the most frequent freshness checks.
What if a spec is missing?
A dash or 'Not specified' usually means the manufacturer has not published the detail clearly. It does not automatically mean the robot lacks the feature.
How should I compare robots at different development stages?
Status labels describe catalog records, not measured operational reliability. Available indicates a purchase listing, not verified stock or shipping dates. Active alone does not confirm public purchase access. Pre-order indicates a reservation listing, not engineering completion or a guaranteed delivery queue position. Development and Prototype identify recorded stages; Discontinued identifies a discontinued listing. Compare documented performance and current manufacturer terms, including any recorded sales notes, for the specific model and region.
Can I compare specific sensors or components more deeply?
Yes. The compare table gives you the side-by-side overview, then the components directory lets you go deeper on shared sensors, radios, and platform pieces across the catalog.