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DIY ESP32-S3 AI Voice Smartwatch Kit with OLED Screen

Pay now, in 4 interest-free payments of $3.74, or over 3–6 months

4 interest-free payments of $3.74

DIY AI smartwatch kit featuring ESP32-S3 processor with WiFi, 0.96-inch OLED display, customizable AI voice assistant, and rechargeable lithium battery.

Color

Clear

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Estimated Delivery Time3–7 business days

Innovative AI Smartwatch Kit

This DIY kit lets you build a customizable AI voice smartwatch powered by the ESP32-S3 N16R8 dual-core processor with WiFi connectivity. Unlike ordinary watches, it offers real-time voice dialogue and remembers conversations with up to 1000 words of dialogue memory.

The 0.96-inch OLED screen displays the time, conversation status, and AI responses clearly, while the built-in rechargeable lithium battery powers your device conveniently.

Customizable AI Voice & Personality

Choose from multiple AI character voices and personalities like the default Taiwanese style “Wanwan Xiaohe”. Adjust tone, language, and dialogue settings via the app, creating a truly personalized companion on your wrist.

Supports multiple languages including Simplified and Traditional Chinese, and English
Allows switching voices and personalities via background settings

Seamless Interaction & Control

The smartwatch offers hands-free voice wake-up, physical button activation, and topic interruption to start new conversations with the AI assistant. It supports coherent topic switching for natural dialogue flow.

Voice wake-up for hands-free control
Button activation for manual use
Interrupt AI mid-conversation to change topics

Comfortable and Durable Design

Equipped with a soft, flexible silicone strap measuring 90mm + 120mm with a 20mm width, it fits most wrist sizes comfortably. The acrylic transparent case protects internal components while keeping a sleek look.

Soft silicone strap for daily wear comfort
Compact case size of 43mm × 52mm × 20mm

Ideal for Makers and Learners

Perfect for STEM education, developers, and DIY enthusiasts interested in wearable AI technology. The pre-soldered circuit board requires only case and strap assembly, with detailed video tutorials guiding your build.

Hands-on learning of electronics and AI programming
Open platform for firmware customization
Great for hobby projects, prototyping, and gifting

Key Specifications

Processor: ESP32-S3 N16R8 dual-core
Display: 0.96-inch OLED screen
Memory: Supports up to 1000 words conversational history
Connectivity: WiFi
Power: Rechargeable lithium battery (~250mA @ 3.7V max current)
Strap: Silicone, 90mm + 120mm length, 20mm width
Dimensions: 43mm × 52mm × 20mm

What's in the box

1 × AI Voice Watch Electronic Kit (pre-soldered board, transparent acrylic case, silicone strap)

CategoriesSmart Watch

TagsAI voice assistant watch, DIY smartwatch kit, ESP32-S3 AI watch, OLED screen smartwatch, rechargeable lithium battery, wearable AI device, WiFi enabled watch

Weight—

AvailabilityIn stock

SKUGA_114153

Discussion

4.7

Based on 19 reviews

k***r August 24, 2026 ★ ★ ★ ★ ★

Assembling the product wasn't that difficult, but I was planning to do it with my elementary school daughter, and it was a bit too difficult for her, so an adult assembled it. The quality is good, and the design is cute and nice. However, no matter how many times I tried to set up the connection, I couldn't get it to work... There was no explanation in Japanese, so I tried asking an AI, but it still didn't work. I plan to try again, but it would be troublesome if I have to rewrite the firmware or something... I wanted to use a properly functioning clock...

S***l June 4, 2026 ★ ★ ★ ★ ★

Quite a fun little diy project. was quite easy to put together and worked out of the box. the shipping was very fast too. much thanks.

E***e June 3, 2026 ★ ★ ★ ★ ★

Very good product. The kid is having a great time with it.

D***o May 30, 2026 ★ ★ ★ ★ ★

Easy to assemble and to configure. is a great ai gadget. tip: register with your github account to get developers access to unlock its full potential. the system is open source and can be fully customised. with a lil bit of knowledge, you can set up a vps and run your own ai agent but i didn’t run it yet.

U***r May 24, 2026 ★ ★ ★ ★ ★

The assembly was simple but vague unless you used the qr code for the video. the language model is glitchy and keeps switching from english to mandarin. i created the agent but it still does it. it would be most helpful if there was an english operation manual available so i can switch language models to something more stable and see why the agent keeps malfunctioning. the agent frequently starts off speaking as. man and then changes to a female voice. i would rate it higher if there were more information available.