Release
Jan 1, 2022
Price
$299
Connectivity
4
Status
Available
Height
22cm (8.67 in)
Weight
0.9kg (2 lbs)
Battery
5–7 hours active use, up to 12 hours standby
Miko 3
An AI-powered companion robot designed for kids aged 5–10. Miko 3 combines a 4.46-inch IPS touchscreen face with a wheeled body, using deep learning to hold conversations, play educational games, tell stories, and respond to touch and voice. It features face and voice recognition, autonomous navigation via time-of-flight and odometric sensors, and a parental control app for monitoring usage. The robot is COPPA-compliant and kidSAFE+ certified, with no identifiable voice recordings stored. Content includes STEM learning apps, Disney and Paramount stories, coding games, and music — with the full library unlocked via the Max subscription.
Listed price
$299
Often on sale for $199; optional Miko Max subscription ($99–180/yr)
Release window
Jan 1, 2022
Current status
Available
Miko
Last verified
Mar 1, 2026
Technical overview
Core specifications and system stack
A fast read on the mechanical profile, sensing package, and platform integrations behind Miko 3.
Technical Specifications
Height
22cm (8.67 in)
Weight
0.9kg (2 lbs)
Dimensions
160mm × 140mm × 220mm (6.3 × 5.5 × 8.67 in)
Battery Life
5–7 hours active use, up to 12 hours standby
Charging Time
~4 hours (15W USB-C adapter)
Tech Components
Operational profile
How this robot is configured
Capabilities
14
Connectivity
4
Key capabilities
Ecosystem fit
Certifications
Explore further
Benchmark set
Compare with similar robots
Shortcuts to the closest alternatives in the current ui44 set.
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$198
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Loona
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$499
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LOVOT
GROOVE X
¥577,500
Companions
Miko Mini
Miko
$112
About the Miko 3
The Miko 3 is a Companions robot built by Miko. An AI-powered companion robot designed for kids aged 5–10. Miko 3 combines a 4.46-inch IPS touchscreen face with a wheeled body, using deep learning to hold conversations, play educational games, tell stories, and respond to touch and voice. It features face and voice recognition, autonomous navigation via time-of-flight and odometric sensors, and a parental control app for monitoring usage. The robot is COPPA-compliant and kidSAFE+ certified, with no identifiable voice recordings stored. Content includes STEM learning apps, Disney and Paramount stories, coding games, and music — with the full library unlocked via the Max subscription.
At a listed price of $299, it positions itself in the consumer-accessible segment of the companions market. See all Miko robots on the Miko page.
Spec Breakdown
Detailed specifications for the Miko 3
Height
22cm (8.67 in)At 22cm (8.67 in), the Miko 3 is sized for its intended operating environment and use cases.
Weight
0.9kg (2 lbs)Weighing 0.9kg (2 lbs), the Miko 3 balances structural integrity with portability and maneuverability.
Dimensions
160mm × 140mm × 220mm (6.3 × 5.5 × 8.67 in)The overall dimensions of 160mm × 140mm × 220mm (6.3 × 5.5 × 8.67 in) define the robot's physical footprint and determine what spaces it can navigate and what clearances it requires for operation.
Battery Life
5–7 hours active use, up to 12 hours standbyWith a battery life of 5–7 hours active use, up to 12 hours standby, the Miko 3 can operate for sustained periods before requiring a recharge. Battery life is measured under typical operating conditions and may vary based on workload intensity and environmental factors.
Charging Time
~4 hours (15W USB-C adapter)A charging time of ~4 hours (15W USB-C adapter) means the ratio of operation to downtime is an important consideration for applications requiring near-continuous availability. Some deployments use multiple robots in rotation to maintain uninterrupted service.
Maximum Speed
N/AA top speed of N/A is calibrated for the robot's primary operating environment and safety requirements.
AI Platform
Deep learning AI for natural conversation, face recognition, voice recognition, and adaptive learningThe Miko 3 uses Deep learning AI for natural conversation, face recognition, voice recognition, and adaptive learning as its intelligence backbone. This AI platform powers the robot's decision-making, perception processing, and autonomous behavior. The sophistication of the AI stack directly impacts how well the robot handles unexpected situations and adapts to new environments.
Miko 3 Sensor Suite
The Miko 3 integrates 5 sensor types, forming the perceptual foundation that enables autonomous operation.
This sensor configuration enables the Miko 3 to perceive its environment and operate autonomously in its intended use cases. Multiple sensor modalities provide redundancy and more robust perception than any single sensor type alone.
Explore sensor technologies: components glossary · full components directory
Miko 3 Use Cases & Applications
Companion robots provide social interaction, emotional support, and entertainment. Unlike utility robots, their primary value proposition is the relationship they build with their owner. The best companions learn preferences, develop personalities, and create genuine emotional connections.
Capabilities That Enable Real-World Use
The Miko 3 offers 14 distinct capabilities, each contributing to the robot's practical utility.
These capabilities work together with the robot's 5 onboard sensor types and Deep learning AI for natural conversation, face recognition, voice recognition, and adaptive learning AI platform to deliver practical, real-world performance.
Ecosystem Integration
The Miko 3 integrates with the following platforms and ecosystems, extending its utility beyond standalone operation.
This ecosystem compatibility enables the Miko 3 to work as part of a broader automation setup rather than operating in isolation.
Miko 3 Capabilities
14
Capabilities
5
Sensor Types
AI
Deep learning AI for natural…
Autonomous Navigation
Autonomous navigation allows the Miko 3 to move through its environment without human guidance, planning efficient paths around obstacles and adapting to changes in real time. For a companions robot, this involves simultaneous localization and mapping (SLAM) to build and maintain environmental models, path planning algorithms to find efficient routes, and reactive obstacle avoidance for unexpected situations. The complexity of autonomous navigation scales dramatically with the environment — navigating a structured warehouse is substantially different from navigating a cluttered home or outdoor space. The Miko 3's navigation system must handle the specific challenges of its intended deployment scenarios reliably and repeatedly.
Additional Capabilities
Connectivity & Integration
How the Miko 3 communicates with your network, smart home devices, cloud services, and companion apps.
Network & Communication Protocols
Miko 3 Technology Stack Overview
The Miko 3 by Miko integrates 10 distinct technology components across sensing, connectivity, intelligence, and interaction layers. The physical platform features a height of 22cm (8.67 in), a weight of 0.9kg (2 lbs), a top speed of N/A, providing the foundation on which this technology stack operates.
Perception — 5 Sensor Types
The perception layer is built on Time-of-Flight Range Sensor, Odometric Sensors, Dual MEMS Microphones, Wide-Angle HD Camera (720p), Touch Sensors. These work in concert to give the robot a detailed understanding of its operating environment. This multi-sensor approach provides redundancy and enables the robot to function reliably even when individual sensors encounter challenging conditions such as low light, reflective surfaces, or cluttered spaces.
Connectivity — 4 Protocols
For communications, the Miko 3 relies on Wi-Fi, Bluetooth, USB-C (charging), MicroSD Card Slot (expandable storage). This connectivity stack ensures the robot can communicate with cloud services, local smart home devices, mobile apps, and other networked systems in its environment.
Intelligence — Deep learning AI for natural conversation, face recognition, voice recognition, and adaptive learning
Deep learning AI for natural conversation, face recognition, voice recognition, and adaptive learning serves as the computational brain, processing sensor data, making navigation decisions, and orchestrating the robot's autonomous behaviors. The quality of this AI platform directly influences how well the robot handles novel situations, adapts to changes in its environment, and improves its performance over time through learning.
Who Should Consider the Miko 3?
Target Audience
Social and companion robots are purchased by families, elderly individuals, and tech enthusiasts looking for interactive, emotionally engaging robotic pets or social companions. They are particularly popular in Japan and increasingly in senior care contexts worldwide.
Key Considerations
Emotional expressiveness, interaction quality, voice recognition, personality development over time, and durability (especially for children) are what matter most. Privacy controls for cameras and microphones are increasingly important. Battery life determines how available the companion is throughout the day.
Price Context
Availability
AvailableThe Miko 3 is currently available for purchase. Check the manufacturer's website or authorized retailers for the latest stock and ordering information.
Miko 3: Strengths & Trade-offs
Engineering compromises and where this companions robot excels
What the Miko 3 does well
Solid sensor coverage
The Miko 3 integrates 5 sensor types, providing good perceptual coverage for its intended applications. This sensor complement covers the essential modalities needed for effective companions operation while keeping complexity manageable.
Versatile connectivity
Supporting 4 connectivity protocols gives the Miko 3 flexible integration options. Whether connecting to local smart home networks, cloud services, or companion devices, the breadth of connectivity ensures compatibility across a wide range of deployment scenarios and reduces the risk of network-related limitations.
Broad capability set
With 14 distinct capabilities, the Miko 3 is designed as a versatile platform rather than a single-task device. This breadth means the robot can handle varied scenarios and workflows, reducing the need for multiple specialized robots and increasing its utility across different situations.
Extended battery life
A battery life of 5–7 hours active use, up to 12 hours standby provides substantial operational runway. For companions applications, this means longer work sessions between charges, fewer interruptions, and the ability to complete larger tasks or cover more area in a single charge cycle.
Currently available
Unlike many robots that remain in development or prototype stages, the Miko 3 is available for purchase today. This means you can evaluate the actual shipping product rather than making decisions based on projected specifications that may change before release.
Accessible price point
At $299, the Miko 3 is competitively priced within the companions market. This price point makes the technology accessible to a broader audience and represents a lower barrier to entry for those exploring companions robotics.
Note: This strengths and trade-offs assessment is based on the Miko 3's documented specifications as tracked in the ui44 database. Real-world performance depends on deployment conditions, firmware maturity, and environmental factors. For the most current information, check the Miko manufacturer page or visit the official product page. Use the comparison tool to evaluate these trade-offs against competing robots in the same category.
How Companions Robot Technology Works
Understanding the engineering behind this category
Companion robots sit at the intersection of engineering and emotional design. Unlike utility robots measured by specifications like suction power or payload capacity, companion robots are judged by how well they make people feel — their expressiveness, responsiveness, personality, and ability to form genuine-seeming bonds with their owners. The technology behind these emotional machines is surprisingly sophisticated, drawing from psychology, animation, and cutting-edge AI.
Navigation & Mobility
Companion robots typically operate in confined indoor spaces and prioritize safe, predictable movement over sophisticated mapping. Most use simple but effective navigation combining bump sensors, cliff detection, and basic obstacle avoidance. Some advanced models incorporate camera-based person-following — the ability to track and follow a specific person through rooms. Unlike utility robots that need systematic coverage, companion robots navigate toward social engagement: moving toward voices, approaching detected family members, or positioning themselves for optimal interaction. The movement itself is often designed to convey personality — a curious robot might lean forward when exploring, while a timid one might approach cautiously.
The Role of AI
AI is the heart of a companion robot's appeal. Emotion recognition systems analyze facial expressions, voice tone, and behavioral patterns to infer the user's emotional state and respond appropriately. Natural language processing enables conversational interaction that goes beyond simple command-response patterns. Personality systems create consistent behavioral traits that make the robot feel like an individual rather than a generic device. Machine learning allows the robot to adapt to its owner's preferences, schedule, and interaction style over time. The most advanced companion robots use generative AI to create novel responses and behaviors rather than relying solely on pre-programmed scripts, making interactions feel more natural and less repetitive.
Sensor Fusion & Perception
Companion robot sensors prioritize social perception over environmental mapping. Cameras detect faces, read expressions, and enable recognition of family members. Microphone arrays with beamforming capture and localize voice from across a room, enabling natural conversation without shouting. Touch sensors across the body detect petting, hugging, and other physical interaction, triggering appropriate emotional responses. Some models include heart-rate or breathing-rate sensors in their touch surfaces, enabling health-monitoring features for elderly users. Temperature and light sensors help the robot understand context — bedtime versus activity time — and adjust its behavior accordingly.
Power & Battery Management
Companion robots need to be available throughout the day to maintain the social bond with their owner. Battery life of eight hours or more is typical, with automatic return-to-charging-dock behavior when levels drop. Power management is designed to be invisible — the robot should seem always available and never interrupt a social moment to announce low battery. Some companion robots use sleep modes during inactive periods, with motion or sound detection to wake instantly when the owner approaches. Charging docks often double as the robot's designated resting spot, making the charging behavior feel natural rather than mechanical.
Safety by Design
Companion robots prioritize child and elderly safety with rounded corners, pinch-free joint designs, and materials safe for skin contact. Emotional safety is equally important — companion robots are designed to never express anger, fear, or distress in ways that could upset vulnerable users. Privacy features include physical camera covers, microphone mute buttons, and transparent data handling policies. For elderly users, companion robots may include fall-detection alerts, activity monitoring, and remote check-in features that balance safety with privacy. The robot's emotional responses are carefully calibrated to avoid over-attachment or dependency concerns.
What's Next for Companions Robots
Companion robotics is evolving toward more nuanced emotional intelligence, deeper personalization, and expanded health-monitoring capabilities. Advances in generative AI are enabling more natural and varied conversational interaction. Future companion robots may serve as health monitoring platforms that detect changes in an owner's mood, activity levels, or cognitive patterns — providing early warning of health issues to family members or caregivers. The integration of companion features into utility robots (and vice versa) may blur category boundaries, creating household robots that are both helpful and emotionally engaging.
The Miko 3 by Miko incorporates many of these technology pillars. For a detailed look at the specific sensors and components used in the Miko 3, see the sensor analysis and connectivity sections above, or browse the complete components glossary for explanations of every technology used across the robotics industry.
Miko 3 in the Companions Market
How this robot compares in the companions landscape
At $299, the Miko 3 competes in the entry-level segment of the companions market, where affordability is the primary consideration for most buyers.
The Miko 3's 5 sensor types provide solid perceptual coverage for its intended use cases. This mid-range sensor suite balances cost with capability, covering the essential modalities needed for companions applications.
Being currently available for purchase gives the Miko 3 a practical advantage over competitors still in development or prototype stages. Buyers can evaluate the actual product rather than relying on spec-sheet promises that may change before release.
Head-to-Head Comparisons
Side-by-side specs, capability overlap analysis, and key differentiators.
For the full picture of Miko's portfolio and market strategy, visit the Miko manufacturer page.
Owning the Miko 3: Setup, Maintenance & Tips
Practical guide from day one through years of ownership
Initial Setup
Companion robot setup is designed to be simple and engaging — the first interaction sets the tone for the relationship. Typical setup involves charging the robot, downloading the companion app, connecting to Wi-Fi, and going through an introduction sequence where the robot learns your face and name. Many companion robots have a personality development phase during the first few days, where they become more responsive and personalized as they learn your voice, habits, and preferences. Place the charging dock in a social area where the robot can be part of daily life rather than tucked away in a corner. Introduce the robot to all family members during setup so it can learn to recognize everyone.
Ongoing Maintenance
Companion robots generally require minimal maintenance. Weekly care includes wiping the exterior with a soft cloth, checking that sensors and cameras are clean, and ensuring the charging dock area is clear. Monthly tasks include checking for and installing software updates, cleaning any microphone or speaker grilles, and inspecting the wheels or locomotion system for hair or debris. The emotional design means that maintenance should feel like care rather than servicing — many owners naturally incorporate it into their interaction with the robot.
Software Updates & Long-Term Support
Software updates for companion robots often add new behaviors, expressions, voice capabilities, and interaction patterns. These updates keep the relationship fresh and can significantly enhance the robot's emotional range and social intelligence over time. Most companion robots update automatically during sleep or charging periods. Some manufacturers offer premium content subscriptions that add seasonal behaviors, educational content, or language capabilities.
Maximizing Longevity
Companion robots typically last three to five years or more with gentle handling. The primary concerns are battery health and physical wear from daily interaction. Avoid dropping the robot or handling it roughly, especially the camera and sensor areas. Keep the robot away from water and extreme temperatures. Battery life will gradually decrease over time; contact the manufacturer about battery replacement options when charging becomes noticeably more frequent. For children's companion robots, supervise initial interactions to establish gentle handling habits.
For Miko-specific support resources and documentation, visit the Miko page on ui44 or check the manufacturer's official website at Miko's product page.
Frequently Asked Questions
What is the Miko 3?
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How does the Miko 3 compare to the OlloNi?
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Data Integrity
All Miko 3 data on ui44 is verified against official Miko sources, including spec sheets, product pages, and press releases. Last verified: 2026-03-01. Official source: Miko product page. If you find outdated or incorrect information, please let us know — accuracy is our top priority.
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