What augment AI does

augment AI Inc. (augment AI株式会社) is a Tokyo-based private startup established on July 18, 2025, founded by the development team that built Sony's wena smartwatch brand between 2016 and 2026. The company inherited the wena trademark, related patents, and the engineering team from Sony Group Corporation via a spin-off, and is led by Representative Director and CEO Teppei Tsushima (對馬 哲平). Its sole commercial focus is the wena X smartwatch, a band-type wearable that attaches to any traditional wristwatch with 16-24mm lug width, offering a detachable 2-way buckle structure that switches between watch and smart band modes.

The wena X product is built on a proprietary RTOS-based operating system called wena OS, which the company claims enables approximately one week of battery life on a single charge. Hardware includes a 1.7x-larger wide curved AMOLED display, a 3-wavelength optical heart rate sensor with claimed accuracy improvement from ~86.8% to ~93.3%, SUS316L surgical-grade stainless steel with DLC coating, NFC payment functionality under development, and gesture controls (tap-to-scroll, clapping for music and timer). The device supports 130+ exercise types, automatic exercise detection, VO2Max and fitness age metrics, recovery time estimation, and 4-stage sleep analysis co-developed with ACCELStars (University of Tokyo sleep-tech startup). The company integrates with Apple Health, Google Health Connect, and ChatGPT. Four product variants are offered: wena X metal (¥64,800), leather (¥64,800), loop rubber (¥56,800), and a 10th Anniversary Special Edition (¥503,800) featuring a Swiss Sellita SW200-2 skeleton movement and Jean Rousseau calfskin band.

augment AI generates revenue solely through one-time hardware sales to Japanese consumers via direct-to-consumer e-commerce on wena.jp, with initial market entry through crowdfunding campaigns on GREEN FUNDING and Sony Bank GATE. The company raised ¥170 million in seed funding in 2025 from Sony Group, business partners, and angel investors, and is targeting an additional ¥20 million through equity crowdfunding on Sony Bank GATE at ¥50,000 per share. Operations are confined to Japan, and commercial shipments are scheduled to begin at the end of December 2026. As of the available data, no revenue has been disclosed.

Name

augment AI

Legal name

augment AI株式会社

Website

https://wena.jp

Company type

Private

Founded year

2025

Operating status

Operating

Short description

augment AI is a Tokyo-based startup that spun off from Sony in 2025 to commercialize the wena X smartwatch, a band-type wearable with a detachable buckle that adds smart features to traditional wristwatches. It sells directly to Japanese consumers through crowdfunding and its own e-commerce site.

Ownership category

akta.pro rank

Product category

Smartwatches and Wearable Electronics

NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345), Electromedical and Electrotherapeutic Apparatus Manufacturing (334510)

SIC

Watches, Clocks, Clockwork Operated Devices/Parts (3873), Electromedical & Electrotherapeutic Apparatus (3845)

akta.pro primary industry

Health Monitoring Wearables (ECG, BP, SpO2, CGM-compatible) (CRACAIAF)

akta.pro secondary industries

Sleep Tech Wearables (CRACAIAG), Smart Fitness & Training Devices (Connected Fitness Sensors, Smart Jump Ropes, etc.) (CRACAQAH), Sleep Tracking Devices (Wearables & Non-wearables) (CRACAQAD)

Keywords

• Smartwatch hardware
• Wearable technology
• Health tracking devices
• Fitness smart bands
• Consumer electronics

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Marketing or Sales, Operations

Revenue model

1. Smartwatch Hardware Sales: One-time hardware revenue from sale of wena X devices across multiple band variants (metal, leather, loop rubber) and the 10th anniversary special edition. Revenue is generated at point of sale with no recurring hardware component.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

augment AI designs, manufactures, and sells the wena X, a band-type smartwatch featuring a detachable buckle that converts between a traditional watch and a smart band. The product runs on a proprietary RTOS-based operating system (wena OS) and offers heart rate monitoring with 93.3% accuracy, sleep analysis, 130+ exercise types, NFC payments, gesture controls, and approximately one-week battery life. Sales are conducted through crowdfunding platforms and a direct e-commerce storefront.

Product overview

augment AI is a Tokyo-based startup established in July 2025 that spun off from Sony Group Corporation, acquiring the wena trademark and patents along with the original development team. The company's primary offering is the wena X smartwatch — world's smallest band-type smartwatch featuring a patented detachable buckle design that switches between traditional watch and smart band modes. wena X is available in four variants: metal (SUS316L stainless steel, ¥64,800), leather (calfskin, pricing not specified), loop rubber (¥56,800), and a premium 10th Anniversary Special Edition (¥503,800). All variants run on wena OS, a proprietary RTOS-based operating system, and integrate with Apple Health, Google Health Connect, and ChatGPT. The product targets users who want to add smart functionality to their existing traditional watches while maintaining aesthetic appeal. Crowdfunding launched March 2026 on GREEN FUNDING, with commercial shipping beginning December 2026. The company has raised ¥170 million in seed funding from Sony Group and partners, with an additional ¥20 million targeted via Sony Bank GATE investment crowdfunding.

Differentiator

Problem solved

Functional benefit

Brands

• wena: Band-style smartwatch brand featuring smart functions integrated into the watch band. Originally launched by Sony in 2016 and revived by augment AI with the wena X model.
• wena X

Products and services

• wena X World's smallest band-type smartwatch with a detachable buckle design enabling conversion between traditional watch and smart band modes. Features wide curved AMOLED display, approximately one-week battery life, NFC payments, gesture controls, and comprehensive health tracking. Designed for consumers who want to add smart functionality to their existing traditional watches.
• wena X metal Premium metal band variant of the wena X using Swiss surgical-grade SUS316L stainless steel with DLC coating. Includes loop rubber band and features tool-free easy-adjust pin sizing. Priced at ¥64,800 (tax included).
• wena X leather Genuine full-grain calf leather band variant of the wena X with independent metal keeper ring design for natural wrist movement. Priced at ¥64,800 (tax included) and includes loop rubber band.
• wena X loop rubber Loop-style rubber band variant of the wena X with anti-slip cross-structure design preventing accidental detachment. Priced at ¥56,800 (tax included).
• wena X 10th Special Edition Limited anniversary edition commemorating wena's 10-year milestone. Features a full-skeleton mechanical watch with Swiss Sellita SW200-2 movement, transparent case, Ruthenium anthracite plating, and Jean Rousseau calfskin leather band. Priced at ¥503,800 (tax included).
• wena OS Proprietary RTOS-based operating system optimized for ultra-low power consumption, stability, and real-time performance. Enables approximately one-week battery life while supporting full-color display, notifications, music control, schedule management, and NFC payment.

Quantifiable outcome

• Heart rate sensing accuracy improved from 86.8% to 93.3% with 3-wavelength sensor and 3x larger light-receiving area.
• +4 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability5 records

Feature10 records

Partnerships

Four partnerships are on record, tiered minor, core and flagship.

• Sony Bank GATEminorChannel Partner/ Reseller/ Distributor · 14 April 2026Sony Bank's investment-type crowdfunding platform where augment AI is raising ¥20 million yen through share offerings at ¥50,000 per share. The platform serves as an investment vehicle rather than a product sales channel.
• GREEN FUNDINGcoreChannel Partner/ Reseller/ Distributor · 20 March 2026GREEN FUNDING is the primary crowdfunding platform for wena X launch. Augment AI launched the smartwatch crowdfunding campaign on this platform with shipments scheduled from the end of December 2025.
• ACCELStarscoreStrategic or Co-development PartnerCapital and business alliance with ACCELStars, a sleep-tech startup from The University of Tokyo, to co-develop AI-powered sleep analysis functionality for wena X. The partnership provides advanced 4-stage sleep stage estimation, automatic nap detection, and optimal wake-up alarm features.
• Jean RousseauflagshipStrategic or Co-development PartnerFrench heritage leather goods maison providing bespoke calf leather band for the wena X 10th Special Edition watch. Jean Rousseau is a renowned maker in the traditional watch industry, providing premium leather straps to prestigious brands globally. Their Chairman issued a statement recognizing wena's bridge between traditional mechanical watches and modern technology.

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Garmin: Garmin dominates the fitness/long-battery-life smartwatch category (Fenix, Forerunner, Venu) and competes directly with wena X on multi-day battery life, VO2Max, recovery metrics, and 100+ exercise types — but at much broader scale and across many product lines.
• Samsung (Galaxy Watch): Samsung Galaxy Watch competes in the full-screen smartwatch category with Wear OS, health sensors, NFC payments, and broad retail distribution. It is an incumbent competitor for health-conscious smartwatch buyers.
• Fitbit (Google): Fitbit (now owned by Google) offers health and fitness smartwatches/trackers (Charge, Sense, Versa) with heart rate, sleep stages, and exercise tracking — directly overlapping wena X's health-monitoring feature set at much larger scale.
• Apple (Apple Watch): Apple Watch is the global smartwatch volume leader and competes on health (ECG, blood oxygen, sleep), fitness, and payment features. It represents the incumbent standard wena X is implicitly differentiating against through battery life and traditional-watch form factor.

Emerging players

• Oura: Oura makes a sleep-and-recovery-focused smart ring with subscription-based health insights. It is an emerging player in the sleep-tech wearable category where augment AI's ACCELStars partnership positions wena X, though in a different form factor (ring vs band).
• Whoop: Whoop is a screenless fitness and recovery wearable focused on strain, sleep, and recovery metrics with a subscription model. It overlaps with wena X's recovery time estimation, fitness age, and sleep-stage analysis features.

Direct peers

• Zepp Health (Amazfit): Zepp Health's Amazfit brand sells affordable smartwatches with AMOLED displays, health sensors, and multi-day battery life. It is a comparable direct peer in the small-form-factor smartwatch category with a similar feature/battery trade-off.
• Fossil Group: Fossil sells hybrid smartwatches and traditional watches across multiple brands (Fossil, Michael Kors, Skagen) with smart functionality built into the dial/hands rather than a full touchscreen. It targets the same traditional-watch-enthusiast customer that augment AI's wena X addresses.
• Withings: Withings makes hybrid smartwatches (ScanWatch, Steel HR) that combine traditional analog watch aesthetics with health monitoring sensors (ECG, SpO2, heart rate, sleep). It is the closest analog to wena X's 'traditional watch + smart band' positioning in the consumer market.

Regional players

• Huawei (Honor/Huawei Watch): Huawei and its Honor sub-brand sell smartwatches (Watch GT, Honor Watch) with multi-week battery life and comprehensive health sensors, primarily in China and select international markets. It is a comparable player in long-battery-life smartwatches but does not directly compete in the Japan market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/wena_japan

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about augment AI