# NASA Artemis Watch 2.0 (CircuitMess)

> A ready-to-use, programmable NASA-themed watch with Bluetooth and activity sensors.

- **Category:** Wearables
- **Availability:** Listed by maker
- **Price:** US$149 watch, checked 2026-09-15
- **Good for:** Program a ready-to-use watch with activity sensors.
- **You'll need:** CircuitBlocks for coding; a phone for Bluetooth features.
- **Trade-off:** Confirm package contents; some bundle copy still mentions assembly.
- **Page:** https://gadgets.sh/devices/nasa-artemis-watch-2-0/

## Where to buy

| Shop | Status | Link |
|---|---|---|
| CircuitMess | Orderable | https://circuitmess.com/products/nasa-artemis-watch-2-0?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=nasa-artemis-watch-2-0&utm_content=api |
| Amazon | Orderable | https://www.amazon.com/dp/B0FPDFHZ56?utm_source=gadgets.sh&utm_medium=referral&utm_campaign=nasa-artemis-watch-2-0&utm_content=api |

## Blueprint

**Schematics published.** Schematic PDF and a tagged firmware release are public; no editable PCB source or Gerbers found.

### Design files

- schematic: [Artemis Watch 2.0 schematic (PDF)](https://cdn.shopify.com/s/files/1/0552/3269/2430/files/Artemis_Watch_2.0_schema.pdf) (PDF)
- manual: [Artemis Watch 2.0 build booklet (PDF)](https://cdn.shopify.com/s/files/1/0552/3269/2430/files/ArtemisWatch_2.0_Booklet_2025_120mm_PRINT.pdf) (PDF)

### Source repositories

- [CircuitMess/GC_Artemis-Firmware](https://github.com/CircuitMess/GC_Artemis-Firmware) — firmware, ★38

### Key parts

| Part | Role | Datasheet |
|---|---|---|
| ESP32-S3-MINI-1-N4R2 | MCU | https://www.espressif.com/sites/default/files/documentation/esp32-s3-mini-1_esp32-s3-mini-1u_datasheet_en.pdf |

_Notes:_ Schematic PDF verified 200. GC_Artemis-Firmware repo (38 stars) has a tagged v2.2 release; no license field, no hardware/KiCad directory found.

## Specifications

### Getting started

| | |
|---|---|
| Current offer | Fully assembled NASA-themed watch; charge using the included cable before use |
| Age guidance | Maker recommends ages 9+ |
| Phone and projects | Bluetooth phone connection; custom watch faces, animations, games and apps |
| Optional companion | Maker advertises control of its separate Perseverance Rover kit; extra straps are separate or bundled |

### Hardware in the linked v0.9 drawing

| | |
|---|---|
| Processor | ESP32-S3-MINI-1-N4R2 |
| Display | Drawing labels a 1.44-inch TFT with a 12-pin connection |
| Battery | 600 mAh LiPo; two-pin JST 1.25 connection |
| USB and charging | USB-C and TP4054 charging circuit |
| Motion and clock | LSM6DS3TR-C motion sensor and BM8563ESA real-time clock |
| Controls and feedback | Left/right/push lever, separate button, buzzer and LEDs |

### Programming and downloads

| | |
|---|---|
| Coding options | CircuitBlocks; product also lists Arduino and Python |
| Source build | Artemis repository specifies ESP-IDF 5.1, recursive submodules and ESP-IDF/JPEGDEC/LovyanGFX patches |
| Stock recovery | Maker README offers CircuitBlocks Restore Firmware or a prebuilt binary; follow its board-specific instructions |
| Download reviewed | v2.2 release; notes updated Bluetooth functionality support |

### Everyday limits

| | |
|---|---|
| Water | Maker explicitly says the watch is not waterproof |
| Sleep | Booklet describes automatic low-power sleep rather than a full power-off button |
| Runtime claim | Maker estimates 2–3 days with typical use; not independently measured |

## Documentation

- [NASA Artemis Watch 2.0 product](https://circuitmess.com/products/nasa-artemis-watch-2-0)
- [Artemis 2.0 guide landing page](https://circuitmess.com/blogs/resources/artemis-watch-2-0-build-guide)
- [Artemis 2.0 2025 booklet PDF](https://cdn.shopify.com/s/files/1/0552/3269/2430/files/ArtemisWatch_2.0_Booklet_2025_120mm_PRINT.pdf)
- [Artemis 2.0 schematic PDF, internal v0.9](https://cdn.shopify.com/s/files/1/0552/3269/2430/files/Artemis_Watch_2.0_schema.pdf)
- [CircuitBlocks online editor — sign-in required](https://code.circuitmess.com/)
- [Artemis firmware and build instructions](https://github.com/CircuitMess/GC_Artemis-Firmware)
- [Artemis firmware v2.2 release](https://github.com/CircuitMess/GC_Artemis-Firmware/releases/tag/v2.2)

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Source: gadgets.sh · https://gadgets.sh/devices/nasa-artemis-watch-2-0/ · JSON: https://gadgets.sh/api/v1/devices/nasa-artemis-watch-2-0.json