Decision tool / 02

Compare the
whole robot.

Features are easy to list. Ownership is harder. Compare the relationship, ongoing cost, privacy surface, support status, and the physical reality together.

Up to 4 modelsShareable linkDifferences view
Your comparison

3 robots, side by side

27 of 29 decision signals currently differ.

Sonyaibo ERS-1000Available
Loona Inc. / KEYiLoona PetbotAvailable
CASIOMoflinAvailable
Decision snapshot

The useful differences, first.

These are editorial orientation signals. Source-linked specifications and the full context follow below.

Sony

aibo ERS-1000

Best for
Expressive pet-like companionship
Watch
High purchase and continuing service cost
Privacy shape
Mostly cloud · Includes camera
3-year core cost
≈ $3,199.99 USD over 3 years · current required plan held constant · United States snapshot
Read full dossier
Loona Inc. / KEYi

Loona Petbot

Best for
Active family play
Watch
Public device-specific data-flow detail is limited
Privacy shape
Hybrid · Includes camera
3-year core cost
Unknown — required recurring costs are not clearly disclosed · Global snapshot
Read full dossier
CASIO

Moflin

Best for
Calm tactile interaction
Watch
Does not understand spoken language
Privacy shape
Mostly local · Camera-free
3-year core cost
≈ $429 USD over 3 years · required plans: none · United States snapshot
Read full dossier
Comparison of aibo ERS-1000, Loona Petbot, Moflin. Individual fact-check dates and sources appear in the table.
Decision signalSonyaibo ERS-1000Open dossier Loona Inc. / KEYiLoona PetbotOpen dossier CASIOMoflinOpen dossier
Relationship & experience
Primary rolePet-likePet-likePet-like
Best understood asBest understood as a premium, mobile character rather than a utility robot: unusually expressive and technically sophisticated, but expensive and deeply tied to Sony’s service.A high-feature consumer robot with strong movement and entertainment value. That breadth also creates a larger privacy and support surface than simpler pet companions.A strong option for people who want quiet, tactile companionship without cameras or speech transcripts. Its narrow behavior set is the point, not a missing feature.
Best forExpressive pet-like companionship · Households with open floor space · Owners who value movement and personalityActive family play · Coding and games · People wanting expressive movement at a mid-range priceCalm tactile interaction · Camera-averse homes · Small spaces and seated use
Less suited toLow-maintenance ownership · Offline-first households · Homes where cameras and cloud biometrics are unacceptableCamera-free homes · Carpeted or complex multi-level spaces · Buyers requiring detailed public AI-retention termsOpen-ended conversation · Independent roaming · People expecting task assistance
InteractionVoice · Touch · Gaze · Movement · Mobile appVoice · Vision · Gesture · Movement · Touch · Mobile appTouch · Voice characteristics · Movement · Sound · Mobile app
Ownership
StatusAvailable. Available from Sony in the United States and Japan; service terms vary by region.A1A2Available. Available through the official store; promotion and locale pricing change frequently.LO1Available. Sold through CASIO in Japan and the United States; colors and support vary.MF1MF2
Market offer snapshots
i
Dated, structured market records. Tax, shipping, promotions, and destination eligibility may differ.
United States: $3,199.99 US, including the initial 3-year AI Cloud Plan · Japan: Current Japan hardware and service price not captured in this reviewA1A2Global: $429 sale / $529 list on the reviewed official store pageLO1United States: $429 US · Japan: ¥59,400 JapanMF1MF2
Required plan by market
i
Optional services are not included in ownership estimates.
United States: 300 USD/year · Japan: Required; current amount not capturedA1A2Global: Required-plan status not clearly disclosedLO1United States: No required recurring plan documented · Japan: No required recurring plan documentedMF1MF2
Estimated year 1 core cost
i
Approximation from the currently listed base purchase price and required plan only. Optional services, tax, shipping, repairs, accessories, and currency conversion are excluded.
≈ $3,199.99 USD over 1 year · current required plan held constant · United States snapshotA1A2Unknown / not disclosed · Unknown — required recurring costs are not clearly disclosed · Global snapshotLO1≈ $429 USD over 1 year · required plans: none · United States snapshotMF1MF2
Estimated year 3 core cost
i
Not a quote or forecast. It holds the current required-plan price constant and preserves unknowns.
≈ $3,199.99 USD over 3 years · current required plan held constant · United States snapshotA1A2Unknown / not disclosed · Unknown — required recurring costs are not clearly disclosed · Global snapshotLO1≈ $429 USD over 3 years · required plans: none · United States snapshotMF1MF2
Estimated year 5 core cost
i
Not a quote or forecast. It holds the current required-plan price constant and preserves unknowns.
≈ $3,799.99 USD over 5 years · current required plan held constant · United States snapshotA1A2Unknown / not disclosed · Unknown — required recurring costs are not clearly disclosed · Global snapshotLO1≈ $429 USD over 5 years · required plans: none · United States snapshotMF1MF2
AvailabilityUnited States and Japan; region-specific termsA1A2International official store; prices and bundles varyLO1Official Japan and US channelsMF1MF2
Introduced201820232024
Body & movement
FormAnimal-inspiredWheeledHandheld
MobilityAutonomous quadruped; 22 axesA2Expressive two-wheel body; autonomous roaming and dockingLO1Held or placed; expressive head and body movement without locomotionMF2
BatteryApproximately 2 hours; self-charging behavior supportedA2Self-docking; runtime depends on feature useLO1Approximately 5 hoursMF2
DimensionsApprox. 180 × 293 × 305 mmA2Approx. 210 × 172 × 172 mmLO1Approx. 130 × 180 × 90 mmMF2
WeightApprox. 2.2 kgA2Approx. 1.1 kgLO1Approx. 260 gMF2
AI, sensing & privacy
Cloud model
i
A broad editorial classification. Check the dossier for feature-level detail.
Mostly cloudA3HybridLO2Mostly localMF3
ConnectivityWi‑Fi and LTE (service availability varies by market)A2Wi‑Fi and mobile appLO1Bluetooth through the MofLife app; routine behavior is localMF2
CameraFront and mapping cameras; photos and face-related featuresA2RGB camera plus 3D time-of-flight sensingLO1No camera documentedMF2
MicrophoneFour microphonesA2Microphone array for localization and voice interactionLO1Voice-characteristic sensing; CASIO says speech is not understood or recordedMF2
Privacy noteFull functionality uses Sony cloud services. Sony’s US notice describes face-related information and selected photos that may be backed up; owners are responsible for consent involving household members and visitors.A3Uses cameras, microphones, accounts, an app, and cloud AI. The maker says processing is local where possible, but public material does not fully specify face, voice, video, or LLM retention by feature.LO2CASIO states that speech is neither understood nor recorded and that extracted voice features and routine interaction processing are local. Optional app uploads require consent.MF3
SDK / opennessNo general public SDK positioned for the consumer modelA2Blockly-style coding and creator features; not a general open robotics platformLO1No public SDKMF2
Care, safety & evidence
Age / contextConsumer companion; supervise around young children, pets, stairs, and waterA2Family product; supervise children and manage camera, remote-control, and floor-safety settingsLO1Not a children’s plush toy; review care, allergy, charging, and supervision guidanceMF2
Safety noteTreat it as delicate mobile electronics rather than a toy. Keep travel areas dry, level, and clear, and review Sony’s regional restrictions before purchase.A2Use cliff and obstacle precautions, keep hair and fingers away from wheels and joints, and treat remote-monitoring access like a home camera account.LO1Keep the fur and electronics dry, use the supplied charging house, and follow CASIO cleaning guidance rather than washing it like a conventional plush toy.MF2
Evidence maturityPartialVendor-reportedPartial
Last fact-checked14 July 202614 July 202614 July 2026
Primary sources3 linked sourcesA1A2A32 linked sourcesLO1LO23 linked sourcesMF1MF2MF3

Relationship & experience

Primary role

aibo ERS-1000

Pet-like

Loona Petbot

Pet-like

Moflin

Pet-like

Best understood as

aibo ERS-1000

Best understood as a premium, mobile character rather than a utility robot: unusually expressive and technically sophisticated, but expensive and deeply tied to Sony’s service.

Loona Petbot

A high-feature consumer robot with strong movement and entertainment value. That breadth also creates a larger privacy and support surface than simpler pet companions.

Moflin

A strong option for people who want quiet, tactile companionship without cameras or speech transcripts. Its narrow behavior set is the point, not a missing feature.

Best for

aibo ERS-1000

Expressive pet-like companionship · Households with open floor space · Owners who value movement and personality

Loona Petbot

Active family play · Coding and games · People wanting expressive movement at a mid-range price

Moflin

Calm tactile interaction · Camera-averse homes · Small spaces and seated use

Less suited to

aibo ERS-1000

Low-maintenance ownership · Offline-first households · Homes where cameras and cloud biometrics are unacceptable

Loona Petbot

Camera-free homes · Carpeted or complex multi-level spaces · Buyers requiring detailed public AI-retention terms

Moflin

Open-ended conversation · Independent roaming · People expecting task assistance

Interaction

aibo ERS-1000

Voice · Touch · Gaze · Movement · Mobile app

Loona Petbot

Voice · Vision · Gesture · Movement · Touch · Mobile app

Moflin

Touch · Voice characteristics · Movement · Sound · Mobile app

Ownership

Status

aibo ERS-1000

Available. Available from Sony in the United States and Japan; service terms vary by region.

A1A2
Loona Petbot

Available. Available through the official store; promotion and locale pricing change frequently.

LO1
Moflin

Available. Sold through CASIO in Japan and the United States; colors and support vary.

MF1MF2

Market offer snapshots
i
Dated, structured market records. Tax, shipping, promotions, and destination eligibility may differ.

aibo ERS-1000

United States: $3,199.99 US, including the initial 3-year AI Cloud Plan · Japan: Current Japan hardware and service price not captured in this review

A1A2
Loona Petbot

Global: $429 sale / $529 list on the reviewed official store page

LO1
Moflin

United States: $429 US · Japan: ¥59,400 Japan

MF1MF2

Required plan by market
i
Optional services are not included in ownership estimates.

aibo ERS-1000

United States: 300 USD/year · Japan: Required; current amount not captured

A1A2
Loona Petbot

Global: Required-plan status not clearly disclosed

LO1
Moflin

United States: No required recurring plan documented · Japan: No required recurring plan documented

MF1MF2

Estimated year 1 core cost
i
Approximation from the currently listed base purchase price and required plan only. Optional services, tax, shipping, repairs, accessories, and currency conversion are excluded.

aibo ERS-1000

≈ $3,199.99 USD over 1 year · current required plan held constant · United States snapshot

A1A2
Loona Petbot

Unknown / not disclosed · Unknown — required recurring costs are not clearly disclosed · Global snapshot

LO1
Moflin

≈ $429 USD over 1 year · required plans: none · United States snapshot

MF1MF2

Estimated year 3 core cost
i
Not a quote or forecast. It holds the current required-plan price constant and preserves unknowns.

aibo ERS-1000

≈ $3,199.99 USD over 3 years · current required plan held constant · United States snapshot

A1A2
Loona Petbot

Unknown / not disclosed · Unknown — required recurring costs are not clearly disclosed · Global snapshot

LO1
Moflin

≈ $429 USD over 3 years · required plans: none · United States snapshot

MF1MF2

Estimated year 5 core cost
i
Not a quote or forecast. It holds the current required-plan price constant and preserves unknowns.

aibo ERS-1000

≈ $3,799.99 USD over 5 years · current required plan held constant · United States snapshot

A1A2
Loona Petbot

Unknown / not disclosed · Unknown — required recurring costs are not clearly disclosed · Global snapshot

LO1
Moflin

≈ $429 USD over 5 years · required plans: none · United States snapshot

MF1MF2

Availability

aibo ERS-1000

United States and Japan; region-specific terms

A1A2
Loona Petbot

International official store; prices and bundles vary

LO1
Moflin

Official Japan and US channels

MF1MF2

Introduced

aibo ERS-1000

2018

Loona Petbot

2023

Moflin

2024

Body & movement

Form

aibo ERS-1000

Animal-inspired

Loona Petbot

Wheeled

Moflin

Handheld

Mobility

aibo ERS-1000

Autonomous quadruped; 22 axes

A2
Loona Petbot

Expressive two-wheel body; autonomous roaming and docking

LO1
Moflin

Held or placed; expressive head and body movement without locomotion

MF2

Battery

aibo ERS-1000

Approximately 2 hours; self-charging behavior supported

A2
Loona Petbot

Self-docking; runtime depends on feature use

LO1
Moflin

Approximately 5 hours

MF2

Dimensions

aibo ERS-1000

Approx. 180 × 293 × 305 mm

A2
Loona Petbot

Approx. 210 × 172 × 172 mm

LO1
Moflin

Approx. 130 × 180 × 90 mm

MF2

Weight

aibo ERS-1000

Approx. 2.2 kg

A2
Loona Petbot

Approx. 1.1 kg

LO1
Moflin

Approx. 260 g

MF2

AI, sensing & privacy

Cloud model
i
A broad editorial classification. Check the dossier for feature-level detail.

aibo ERS-1000

Mostly cloud

A3
Loona Petbot

Hybrid

LO2
Moflin

Mostly local

MF3

Connectivity

aibo ERS-1000

Wi‑Fi and LTE (service availability varies by market)

A2
Loona Petbot

Wi‑Fi and mobile app

LO1
Moflin

Bluetooth through the MofLife app; routine behavior is local

MF2

Camera

aibo ERS-1000

Front and mapping cameras; photos and face-related features

A2
Loona Petbot

RGB camera plus 3D time-of-flight sensing

LO1
Moflin

No camera documented

MF2

Microphone

aibo ERS-1000

Four microphones

A2
Loona Petbot

Microphone array for localization and voice interaction

LO1
Moflin

Voice-characteristic sensing; CASIO says speech is not understood or recorded

MF2

Privacy note

aibo ERS-1000

Full functionality uses Sony cloud services. Sony’s US notice describes face-related information and selected photos that may be backed up; owners are responsible for consent involving household members and visitors.

A3
Loona Petbot

Uses cameras, microphones, accounts, an app, and cloud AI. The maker says processing is local where possible, but public material does not fully specify face, voice, video, or LLM retention by feature.

LO2
Moflin

CASIO states that speech is neither understood nor recorded and that extracted voice features and routine interaction processing are local. Optional app uploads require consent.

MF3

SDK / openness

aibo ERS-1000

No general public SDK positioned for the consumer model

A2
Loona Petbot

Blockly-style coding and creator features; not a general open robotics platform

LO1
Moflin

No public SDK

MF2

Care, safety & evidence

Age / context

aibo ERS-1000

Consumer companion; supervise around young children, pets, stairs, and water

A2
Loona Petbot

Family product; supervise children and manage camera, remote-control, and floor-safety settings

LO1
Moflin

Not a children’s plush toy; review care, allergy, charging, and supervision guidance

MF2

Safety note

aibo ERS-1000

Treat it as delicate mobile electronics rather than a toy. Keep travel areas dry, level, and clear, and review Sony’s regional restrictions before purchase.

A2
Loona Petbot

Use cliff and obstacle precautions, keep hair and fingers away from wheels and joints, and treat remote-monitoring access like a home camera account.

LO1
Moflin

Keep the fur and electronics dry, use the supplied charging house, and follow CASIO cleaning guidance rather than washing it like a conventional plush toy.

MF2

Evidence maturity

aibo ERS-1000

Partial

Loona Petbot

Vendor-reported

Moflin

Partial

Last fact-checked

aibo ERS-1000

14 July 2026

Loona Petbot

14 July 2026

Moflin

14 July 2026

Primary sources

aibo ERS-1000

3 linked sources

A1A2A3
Loona Petbot

2 linked sources

LO1LO2
Moflin

3 linked sources

MF1MF2MF3
Reading the table

Prices and availability are snapshots, not offers. Cost estimates keep the listed required plan constant, exclude optional services and additional ownership costs, and never convert currencies. “Mostly local,” “hybrid,” and “mostly cloud” describe broad architecture; individual features can follow different data paths. Unknown or undisclosed information is preserved instead of guessed.