AI Character Companion Devices Compared (2026): Gatebox3, CODE27, Hologram Companions, and Mia | Mia
🎉ミーア会話モデルがリリースされました!詳細はこちら→

AI Character Companion Devices Compared (2026): Gatebox3, CODE27, Hologram Companions, and Mia

Introduction: There Are Now Three Ways to Live with an AI Character

You want a character to say "welcome home." You want it to remember what you told it last week. In 2026, the number of products promising exactly that grew fast.

Gatebox3 and CODE27 project a character inside a display case. Lepro Ami and Razer Project AVA put a 3D avatar on your desk. MIO AI looks like a crystal ball, and ROLA One is an upper-body companion robot. In November 2026, AIREN launched in Japan as a browser-based service where you can talk with characters without installing anything.

They are often grouped together as "AI characters," but they are very different. Some cost more than 100,000 yen, some need a monthly plan, some are not sold in Japan yet, and some have no physical device at all.

This article compares them by:

  • Whether the character lives on a screen or has a body you can touch
  • Device price and monthly cost
  • Whether it remembers previous conversations
  • Whether you can use it in Japanese or English, and buy it now

At the end, we also introduce Mia, a talking cat robot, for people who want a small companion in the room rather than a character on a screen.

Gatebox3, CODE27, Lepro Ami, MIO AI, ROLA One, and Mia side by side: AI character companion devices compared

Key Takeaways

  • Products fall into three types: hologram-style display devices, AI figures and robots, and screen-only services
  • If you want your favorite character in 3D in your room, Gatebox3 and CODE27 are the main options. Both cost over 100,000 yen and started as crowdfunding pre-sales
  • Desk avatars such as Lepro Ami and Razer Project AVA still have unclear Japanese launch plans and language support
  • To try an AI character cheaply, a no-device service like AIREN is an option, starting at 1,980 yen a month
  • If presence in the room and long-term cost matter more than a character's look, Mia starts at US$149 in the English store (9,800 yen including tax in Japan) and works without a subscription

Quick Answer: Choose by What Matters Most

What matters most Options
Bringing a favorite character into your room in 3D Gatebox3, CODE27
Talking with an AI avatar on your desk Lepro Ami, Razer Project AVA (no Japan launch yet)
A companion that remembers past conversations AIREN, MIO AI, Mia (Conversation Model)
Trying without buying a device AIREN
A physical companion that talks to you every day Mia
Keeping the cost low over the long term Mia (from US$149 / 9,800 yen, no subscription required)

People who want to live with a character on a screen and people who want a companion in the room end up choosing completely different products. Decide which one you are first.

👉 Meet Mia, the talking cat robot: features, models, and prices

Comparison Table

Prices and availability were checked on November 10, 2026. Many products are still in pre-sale or crowdfunding, so check the official pages before buying.

Product Type Device price Monthly cost Memory Availability
Gatebox3 3D character in a display case 130,000 to 164,000 yen (Makuake) AI talk planned at about 500 to 1,000 yen Check official info Pre-order (delivery planned for end of March 2027)
CODE27 3D character in a display case 109,800 yen including tax Basic AI free for now (paid plans planned) Check official info Pre-sale on Makuake in Japan
Lepro Ami 3D desk avatar Not confirmed Not confirmed Check official info Japan launch and language support not confirmed
Razer Project AVA Desk hologram Not announced Not announced Check official info Reservations in the US only
MIO AI Crystal-ball AI partner From 35,800 yen (Makuake early bird) Check official info Long-term memory Makuake (delivery planned for end of November 2026)
ROLA One Upper-body AI robot From 4,800 USD Check official info Memory-based conversation Ordered from overseas
Buddyo AI pod for collectible figures Not announced Not announced Memory planned Kickstarter planned
AIREN Browser-based 2.5D characters No device 1,980 or 4,980 yen Yes, viewable and deletable Available (Japanese service)
Mia Talking cat robot From US$149 (9,800 yen in Japan); Conversation Model US$199 (from 22,800 yen in Japan) None required; conversation mode US$2 (300 yen in Japan) Conversation Model remembers Sold on the official site

Type 1: Devices That Show a Character Like a Hologram

Gatebox3: The Pioneer of Living with a Character

Gatebox models through the years, ending with Gatebox3

Gatebox has been building the "live with your character" experience since 2016. The latest Gatebox3 uses an OLED display so the character stands out sharply against a black background. It went on pre-sale on Makuake in April 2026.

It recognizes you with a camera and microphone and answers when you talk. It can also control home appliances by infrared and import VRM 3D models so you can display a character of your choice.

Makuake plans ranged from about 130,000 to 164,000 yen, with delivery planned for the end of March 2027. The AI talk feature has a separate monthly fee, planned at about 500 to 1,000 yen, and Makuake backers get the first year free.

[Gatebox3 Review] Can you really live with an AI character? What reviews reveal about the appeal and drawbacks
Gatebox3: The Ultimate Review! Exploring its evolution from the original and previous models, the infinite conversations enabled by ChatGPT integration, and the decisive differences from competitor Code27. From the pros and cons of its lifelike projection technology to comparisons with the cat-shaped robot “Mia.” The future of living with your favorite character is in this one device!

CODE27: Display and Talk with Your Own 3D Character

CODE27 showing a 3D character

CODE27 is a digital figure box that shows a 3D character inside a case like a hologram, with AI conversation and dance. It raised about 1.9 million USD on Kickstarter and about 200 million yen on Makuake in Japan.

The Japanese price is 109,800 yen including tax, and the smart rotating base is sold separately for 24,800 yen. Basic AI services (speech recognition, conversation, and speech synthesis) have no extra charge for now, but paid plans are planned.

[CODE27 Review] Do your characters really come to life? What reviews reveal about the appeal and drawbacks
Over 100 Million Yen! A Deep Dive Review of the AI Digital Figure Box “CODE27”. This device, currently available for early purchase on Makuake, projects your custom 3D characters (like VRoid) and lets you live with your “ideal companion” powered by ChatGPT and local AI. We cover everything: user reviews, specs, and even a comparison with the cat-shaped robot “Meara”.

Type 2: 3D Desk Avatars and AI Figures

Lepro Ami: A 3D AI Companion for Your Desk

Lepro Ami on a desk

Lepro Ami was announced at CES 2026. It shows a 3D avatar on a curved OLED screen and uses cameras to read your gaze and expressions so it can react as if making eye contact. The camera has a physical shutter.

It was reported to launch from July 2026, but the Japanese release date, price, and Japanese language support are still not confirmed.

[Lepro Ami Review] Is this 3D desktop companion really comforting? What reviews reveal about the appeal and drawbacks
Lepro Ami is a 3D desktop AI companion introduced at CES 2026. This review summarizes its curved OLED display, avatar features, privacy controls, expected availability, missing price details, early media reactions, and how it compares with Mia.

Razer Project AVA: A Hologram Sidekick for Gamers

Razer Project AVA, shown at CES 2026, is a small hologram-style AI assistant for your desk. It is presented not only as a gaming helper but also for schedules and work support.

As of November 2026, no official price has been announced, and the refundable 20 USD reservation is open only in the United States.

MIO AI: A Crystal-Ball AI Partner

MIO AI in its glass sphere

MIO AI is a palm-sized AI partner whose face appears inside a round, tempered-glass body. It remembers what you talk about over the long term, and its expressions change with an affection level.

Makuake early-bird prices start at 35,800 yen, with delivery planned for the end of November 2026. As a crowdfunded product, check support and memory data handling after the official launch.

MIO AI Review: A Crystal-Ball-Like AI Partner on Makuake — Price, Features, and What to Check
MIO AI is a palm-sized AI partner from Jinwa Shoji Co., Ltd., launched on the Japanese crowdfunding platform Makuake. This review covers its glass, orb-like design, long-term memory conversation, mood-based expression changes, early-bird pricing, how it compares to Gatebox3, CODE27, WEHEAD, and ROLA One, and how it differs from Mia.

ROLA One: A Lifelike Upper-Body Companion

ROLA One upper-body AI companion robot

ROLA One is an upper-body AI companion robot from KOIBOT, with a realistic face and torso and memory-based conversation.

At 4,800 USD and up, it is by far the most expensive product here. Shipping, import duties, warranty, and returns all need careful checking. It suits collectors and display use more than everyday family use.

ROLA One Review: Is This Upper-Body AI Companion Robot Really for the Home?
A practical ROLA One review covering KOIBOT's upper-body AI companion robot, Amoria emotional AI, Smart Head features, price, Kickstarter status, shipping, returns, warranty, privacy cautions, similar AI character devices, and how it differs from Mia.

Buddyo: Give Your Figures a Voice and Memory

Buddyo Pod with a collectible figure

Buddyo is an AI pod that makes a figure you already own, such as a Funko Pop, Amiibo, or POP MART figure, talk as that character. Memory and expressive reactions are planned.

It is planned for Kickstarter, and the price, language support, and subscription have not been announced.

Buddyo Review: Can This AI Pod Bring Your Collectibles to Life?
Buddyo Pod is an AI pod for collectibles such as Funko Pops, Amiibo, POP MART figures, and action figures. This review covers official information, CES 2026 context, Kickstarter cautions, unknown pricing, privacy questions, and how Buddyo differs from Mia.

Type 3: AI Character Services with No Device

AIREN: Browser-Based 2.5D Characters That Remember You

AIREN is an AI companion service from Japan that officially launched on November 8, 2026. There is no app to install. You talk with 2.5D anime-style characters by text or video in your browser.

Its main feature is memory. Characters remember previous conversations and pick up where you left off. You can view and delete what a character remembers, and records are kept for 90 days after you cancel. There are three characters at launch, Sara, Hiro, and Megumi, with a fourth planned.

Plan Monthly Includes
Free trial 0 yen First use only, 10 minutes of video (5 minutes twice), first 100 users each month
Starter 1,980 yen Unlimited text, two 10-minute video sessions a month
Regular 4,980 yen Unlimited text, six 10-minute video sessions a month, plus an acrylic stand of your character

Being able to start without buying a device is a big plus. On the other hand, there is no sense of a character being in your room, and the cost keeps adding up: about 24,000 to 60,000 yen a year.

Source: AI Watch, "Memory-equipped 2.5D AI companion AIREN officially launches" (November 9, 2026, in Japanese)

Screen Character or Companion in the Room?

Character on a screen Companion you can touch
Examples AIREN, Gatebox3, CODE27, Lepro Ami Mia, ROLA One, MIO AI
Appeal Recreates a favorite character's look Has a presence in the room
When you meet When you open the screen or stand in front of the case All the time while you are home
Cost Over 100,000 yen, or a monthly plan From a few thousand yen up, varies widely
Best for People who want to talk with a favorite character People who want a small companion in daily life

If the character's look matters most, a screen-based product fits. If being in the room and talking to you every day matters more, a physical companion is likely to satisfy you more.

For a Companion in the Room, Try Mia: The Conversation Model Remembers You

Black and white Mia cat robots

Mia is a talking cat robot made by EarBrain in Japan. It is not a character on a screen. It sits in your room as a small cat with expressive eyes and talks to you.

Standard Model: Daily Voice Prompts with No Subscription

The Standard Model costs US$149 in the English store (from 9,800 yen including tax in Japan) and works with no monthly fee.

  • Greets you in 47 Japanese regional dialects
  • Tells you the weather and your Google Calendar plans
  • Offers 15 English characters for English voice prompts
  • Plays voice messages from family members
  • Changes its eye expressions

Conversation Model: It Answers, and It Remembers

In August 2026, Mia added a Conversation Model that answers when you talk to it (US$199 in the English store; in Japan, white 22,800 yen and black 23,800 yen including tax). Conversation mode uses the Premium Service at US$2 a month (300 yen in Japan), with up to 5 hours a month.

As of November 2026, it can:

  • Remember: it remembers family names, plans, favorite things, and events, and brings them up next time. You can view and delete its memories in the app
  • Talk in English: speak in English and Mia answers in English. You can choose from 7 English voices, and Mia switches between Japanese and English automatically
  • Choose a speaking style: polite or casual
  • Reply in dialect: Osaka or Hakata dialect (Japanese), with female or male voices. The white and black Mia have different personalities in conversation
  • Choose a voice and speed: pick from 15 voices after listening, and set speaking speed from 0.8x to 1.2x
  • Set alarms by voice: say "set an alarm for 7" or "wake me up in 30 minutes," and tap its head to stop it

The "What Mia Remembers" screen in the app

The Conversation Model gives you the kind of memory-based conversation AIREN offers, but with a cat sitting in your room instead of a screen. At US$2 (300 yen) a month, it is also easier to keep using than most AI character services.

[Conversation Model Only] Mia Now Remembers Your Last Conversation: How to Use "What Mia Remembers"
In Conversation Mode, Mia remembers family names, plans, favorites and things that happened, and brings them up naturally next time. Since app 1.25.0 she also asks how a past plan went. See what she remembers, what she never remembers, and how to review and delete memories.
[Conversation Model] Choose Mia's English Voice From 7 Options, Separate From the Japanese Voice
Mia app 1.24.0 lets you choose Mia's English voice in Conversation Mode from 7 voices. English and Japanese voices are set separately, and Mia switches as you speak.

Mia Compared with the Others

Mia Gatebox3 / CODE27 AIREN
Form Cat robot you can touch 3D character in a case 2.5D character on a screen
Device From US$149 (9,800 yen) Over 100,000 yen None
Monthly None required (conversation mode US$2 / 300 yen) AI talk on a monthly plan (some planned) From 1,980 yen
Memory Conversation Model remembers (viewable and deletable) Check official info Remembers (viewable and deletable)
English English conversation with 7 voices Check official info Check official info
Buy now Official site Pre-order Available now

Mia does not recreate an anime character's look. Its strength is a low price and being a companion you can live with for a long time.

Things to Check Before Buying an AI Character Device

1. Treat Crowdfunding as a Pre-Order

Gatebox3, CODE27, MIO AI, and Buddyo all started as crowdfunding projects. Deliveries can slip and specs can change.

2. Calculate the Monthly Cost for a Full Year

AI conversation usually runs in the cloud, so more products charge monthly. Even 1,980 yen a month is about 24,000 yen a year. Compare the total over one and three years.

Pet Robot Monthly Costs Compared: Will You Regret Not Checking Fees First? Moflin, LOVOT, Mia, and More
【2026 Latest】A Comprehensive Comparison of Monthly Costs & Maintenance Fees for Pet Robots! Covering 12 Models from Full-Featured Options Like LOVOT and aibo to Mia Enjoyable for Just ¥300/Month, Poketomo Selectable by Conversation Volume, and Casio's Moflin. We detail the “running cost pitfalls” to avoid buyer's remorse and how to choose the perfect partner for your budget.

3. Check Memory and Privacy

A companion that remembers you also stores what you said. Check what it remembers, whether you can view and delete it, and what happens when you cancel.

4. Think About What Happens If the Service Ends

Products that depend on the cloud may stop talking if the service shuts down. If you want a long relationship, check which features work offline.

What Happens to a Pet Robot If You Cancel or the Service Ends? Cloud vs Offline Explained
What happens to an AI pet robot if you cancel its plan or the maker shuts down? Using aibo's Basic Plan and the Moxie shutdown as examples, this guide explains cloud vs offline robots and what to check before buying, including Mia.

FAQ

Can I buy a hologram AI character in Japan?

Gatebox3 and CODE27 are on pre-sale through Makuake in Japan. Lepro Ami and Razer Project AVA had no confirmed Japanese launch or Japanese language support as of November 2026.

What is the cheapest way to talk with an AI character?

A browser service like AIREN needs no device. If you want a physical companion, Mia starts at US$149 (9,800 yen in Japan). For two-way conversation, you need the Conversation Model (US$199, or from 22,800 yen in Japan) and conversation mode at US$2 a month (300 yen in Japan).

Which ones remember previous conversations?

AIREN, MIO AI, and the Mia Conversation Model. AIREN and Mia let you view and delete what they remember. Check the official information for Gatebox3 and CODE27.

Which is best as a gift for an older family member?

Products that talk on their own without screen or PC operation are easier. Mia greets them in dialect and can play voice messages from family, which also makes it a good gift.

2026 Guide: Companion Robots That Talk to Elderly Parents | 8 Models Compared
Looking for a companion robot that talks to an elderly parent living alone? We compare 8 models including Mia, Romi, Chapit, and BOCCO emo on conversation style, monthly cost, Wi-Fi requirements, and ease of use, including Mia's Conversation Model, which remembers what you tell her.

Summary: Gatebox3 or CODE27 for a Favorite Character, Mia for a Daily Companion

The ways to live with an AI character expanded quickly in the past year.

For your favorite character in 3D, choose Gatebox3 or CODE27. For a desk avatar, wait for Lepro Ami or Razer Project AVA to reach Japan. To try without a device, there are services like AIREN.

If you care more about a companion that is in the room and talks to you every day, take a look at Mia. It starts at US$149 (9,800 yen in Japan) with no subscription, and the Conversation Model remembers what you tell it and answers in Japanese or English.

👉 Meet Mia, the talking cat robot: features, models, and prices

👀 You may also like:

👉 2026 Guide: AI Pet Robots for Elderly Loneliness – A Comparison of 10 Companion Robots

👉 2026 Edition: 9 Recommended Pet Robots Under $150 – Cheap, Cute, and Healing Models

👉 Monthly and Maintenance Costs of Pet Robots: Moflin, LOVOT, Mia, and More

👉 Mia – Your Chatty AI Cat Companion Robot with 100+ Expressions

Copied title and URL